标签：总结 return String 人事 int 管理系统 id import public
人事管理系统
文章目录
- 人事管理系统
1.创建项目
1.1 使用逆向工程创建项目
自动生成实体类bean,和mapper接口和映射文件
1.2 pom.xml的编写导入依赖
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<!-- Spring-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.3.5</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.3.5</version>
</dependency>
<!-- 切面-->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.9.6</version>
</dependency>
<!-- springmvc-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.3.5</version>
</dependency>
<!-- fastjson-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.75</version>
</dependency>
<!-- jackson-databind-->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.12.4</version>
</dependency>
<!-- mybatis-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.2</version>
</dependency>
<!-- mybatis-spring-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>2.0.6</version>
</dependency>
<!-- lombok-->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.20</version>
</dependency>
<!-- 数据库-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.23</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.2.3</version>
</dependency>
<!-- servlet api可以使用原生的servlet-->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- 分页-->
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>5.2.0</version>
</dependency>
<!--shiro-spring-->
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-spring</artifactId>
<version>1.6.0</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.2.3</version>
</dependency>
<!-- spring-aspects-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>5.3.5</version>
</dependency>
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-ehcache</artifactId>
<version>1.7.1</version>
</dependency>
<dependency>
<groupId>jspapi</groupId>
<artifactId>jsp-api</artifactId>
<version>2.0</version>
</dependency>
</dependencies>
<build>
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.xml</include>
<include>**/*.properties</include>
</includes>
<filtering>true</filtering>
</resource>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.xml</include>
<include>**/*.properties</include>
</includes>
<filtering>true</filtering>
</resource>
</resources>
</build>
1.2配置文件的编写
1.2.1 applicationContext.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mybatis="http://mybatis.org/schema/mybatis-spring"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
https://www.springframework.org/schema/context/spring-context.xsd
http://mybatis.org/schema/mybatis-spring
http://mybatis.org/schema/mybatis-spring.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/aop
https://www.springframework.org/schema/aop/spring-aop.xsd">
<!--1.配置组件扫描,主要扫描service和mapper包-->
<context:component-scan base-package="com.hrf.service,com.hrf.mapper"/>
<!-- 2.引入外部的属性文件-->
<context:property-placeholder location="classpath*:jdbc.properties"/>
<!-- 3.配置数据源-->
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${jdbc.driver}"/>
<property name="url" value="${jdbc.url}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
</bean>
<!-- 4.配置sqlsessionFactory-->
<bean id="sessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 4.1配置数据源-->
<property name="dataSource" ref="dataSource"/>
<!-- 4.4加载设置-->
<property name="configuration">
<bean class="org.apache.ibatis.session.Configuration">
<property name="mapUnderscoreToCamelCase" value="true"/>
<property name="logImpl" value="org.apache.ibatis.logging.log4j.Log4jImpl"/>
</bean>
</property>
<!-- 4.5 插件 分页插件-->
<property name="plugins">
<list>
<bean class="com.github.pagehelper.PageInterceptor"/>
</list>
</property>
<!-- 4.2定义别名-->
<property name="typeAliasesPackage" value="com.hrf.bean"/>
<!-- 4.2加载mybatis核心配置文件configLocation-->
<!-- <property name="configLocation" value="classpath:mybatis-config.xml"/>-->
<!-- 4.3加载mapper里面的配置文件-->
<property name="mapperLocations" value="classpath*:com/hrf/mapper/*.xml"/>
</bean>
<!-- 5.搜索mapper映射接口-->
<mybatis:scan base-package="com.hrf.mapper"/>
<!-- 6.事务管理-->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
<!-- 7.事务切面配置-->
<tx:advice id="transactionInterceptor" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="*"/>
</tx:attributes>
</tx:advice>
<!-- 8.事务切面与切入点的关联-->
<aop:config proxy-target-class="true">
<aop:pointcut id="p" expression="execution(* com.hrf.service.*.*(..))"/>
<aop:advisor advice-ref="transactionInterceptor" pointcut-ref="p"/>
</aop:config>
</beans>
1.2.2 Springmvc.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
https://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc
https://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/aop
https://www.springframework.org/schema/aop/spring-aop.xsd">
<!--1.组件扫描,主要是扫描controller-->
<context:component-scan base-package="com.hrf.controller"/>
<!-- 2.开启注解-->
<mvc:annotation-driven>
<!-- 如果fastjson返回json数据需要继续配置-->
<mvc:message-converters>
<bean class="org.springframework.http.converter.StringHttpMessageConverter">
<property name="defaultCharset" value="utf-8"/>
</bean>
</mvc:message-converters>
</mvc:annotation-driven>
<!-- 3.配置视图解析器-->
<!-- <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">-->
<!-- <property name="prefix" value="/"/>-->
<!-- <property name="suffix" value=".jsp"/>-->
<!-- </bean>-->
<!-- <mvc:view-resolvers>-->
<!-- <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">-->
<!-- <property name="prefix" value="/"/>-->
<!-- <property name="suffix" value=".jsp"/>-->
<!-- </bean>-->
<!-- </mvc:view-resolvers>-->
<!-- 4.处理静态资源-->
<mvc:default-servlet-handler></mvc:default-servlet-handler>
<!-- 指定使用Cglib作为AOP的动态代理实现 -->
<aop:config proxy-target-class="true"/>
<!-- 开启Shiro权限注解支持 -->
<!-- <bean class="org.apache.shiro.spring.security.interceptor.AuthorizationAttributeSourceAdvisor">-->
<!-- <property name="securityManager" ref="securityManager"/>-->
<!-- </bean>-->
<!-- 处理注解检查权限页面报错异常 -->
<!-- 定义需要特殊处理的异常，用类名或完全路径名作为key，异常页名作为值 -->
<!-- <bean class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">-->
<!-- <property name="exceptionMappings"> <props>-->
<!-- <prop key="org.apache.shiro.authz.UnauthorizedException">/forbidden.jsp</prop>-->
<!-- <prop key="org.apache.shiro.authz.AuthorizationException">/forbidden.jsp</prop>-->
<!-- </props>-->
<!-- </property>-->
<!-- </bean>-->
</beans>
1.2.3 jdbc.properties
jdbc.driver=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/hrmanagement?serverTimeZone=UTC
jdbc.username=root
jdbc.password=0429
1.2.4 log4j.properties
# 全局日志配置
log4j.rootLogger=ERROR, stdout
# MyBatis 日志配置
log4j.logger.com.hrf.mapper=TRACE
# 控制台输出
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n
1.3 与web集成(web.xml的编写)
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
version="4.0">
<!-- 设置欢迎页面-->
<welcome-file-list>
<welcome-file>/WEB-INF/jsp/loginForm.jsp</welcome-file>
</welcome-file-list>
<!-- 配置过滤器-->
<filter>
<filter-name>code</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>utf-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>code</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- 配置中央处理器-->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 绑定springmvc-->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:springmvc.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- Spring上下文的监听器 配置监听器-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- shiro的过滤器-->
<!-- <filter>-->
<!-- <filter-name>shiroFilter</filter-name>-->
<!-- <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>-->
<!-- </filter>-->
<!-- <filter-mapping>-->
<!-- <filter-name>shiroFilter</filter-name>-->
<!-- <url-pattern>/*</url-pattern>-->
<!-- <dispatcher>REQUEST</dispatcher>-->
<!-- <dispatcher>FORWARD</dispatcher>-->
<!-- </filter-mapping>-->
<!-- 设置会话配置session-timeout 5 分钟-->
<!-- <session-config>-->
<!-- <session-timeout>5</session-timeout>-->
<!-- </session-config>-->
</web-app>
注意: 设置默认的欢迎页面 loginForm.jsp进行登录,看上面的代码.
1.4导入工具类
1.4.1 分页标签
package com.hrf.util;
import java.io.IOException;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.SimpleTagSupport;
/**
* 分页标签
*/
public class PagerTag extends SimpleTagSupport {
/** 定义请求URL中的占位符常量 */
private static final String TAG = "{0}";
/** 当前页码 */
private int pageIndex;
/** 每页显示的数量 */
private int pageSize;
/** 总记录条数 */
private int recordCount;
/** 请求URL page.action?pageIndex={0}*/
private String submitUrl;
/** 样式 */
private String style = "sabrosus";
/** 定义总页数 */
private int totalPage = 0;
/** 在页面上引用自定义标签就会触发一个标签处理类 */
@Override
public void doTag() throws JspException, IOException {
/** 定义它拼接是终的结果 */
StringBuilder res = new StringBuilder();
/** 定义它拼接中间的页码 */
StringBuilder str = new StringBuilder();
/** 判断总记录条数 */
if (recordCount > 0){ //1499 / 15 = 100
/** 需要显示分页标签，计算出总页数 需要分多少页 */
totalPage = (this.recordCount - 1) / this.pageSize + 1;
/** 判断上一页或下一页需不需要加a标签 */
if (this.pageIndex == 1){ // 首页
str.append("<span class='disabled'>上一页</span>");
/** 计算中间的页码 */
this.calcPage(str);
/** 下一页需不需要a标签 */
if (this.pageIndex == totalPage){
/** 只有一页 */
str.append("<span class='disabled'>下一页</span>");
}else{
String tempUrl = this.submitUrl.replace(TAG, String.valueOf(pageIndex + 1));
str.append("<a href='"+ tempUrl +"'>下一页</a>");
}
}else if (this.pageIndex == totalPage){ // 尾页
String tempUrl = this.submitUrl.replace(TAG, String.valueOf(pageIndex - 1));
str.append("<a href='"+ tempUrl +"'>上一页</a>");
/** 计算中间的页码 */
this.calcPage(str);
str.append("<span class='disabled'>下一页</span>");
}else{ // 中间
String tempUrl = this.submitUrl.replace(TAG, String.valueOf(pageIndex - 1));
str.append("<a href='"+ tempUrl +"'>上一页</a>");
/** 计算中间的页码 */
this.calcPage(str);
tempUrl = this.submitUrl.replace(TAG, String.valueOf(pageIndex + 1));
str.append("<a href='"+ tempUrl +"'>下一页</a>");
}
/** 拼接其它的信息 */
res.append("<table width='100%' align='center' style='font-size:13px;' class='"+ style +"'>");
res.append("<tr><td style='COLOR: #0061de; MARGIN-RIGHT: 3px; PADDING-TOP: 2px; TEXT-DECORATION: none'>" + str.toString());
res.append(" 跳转到 <input style='text-align: center;BORDER-RIGHT: #aaaadd 1px solid; PADDING-RIGHT: 5px; BORDER-TOP: #aaaadd 1px solid; PADDING-LEFT: 5px; PADDING-BOTTOM: 2px; MARGIN: 2px; BORDER-LEFT: #aaaadd 1px solid; COLOR: #000099; PADDING-TOP: 2px; BORDER-BOTTOM: #aaaadd 1px solid; TEXT-DECORATION: none' type='text' size='2' id='pager_jump_page_size'/>");
res.append(" <input type='button' style='text-align: center;BORDER-RIGHT: #dedfde 1px solid; PADDING-RIGHT: 6px; BACKGROUND-POSITION: 50% bottom; BORDER-TOP: #dedfde 1px solid; PADDING-LEFT: 6px; PADDING-BOTTOM: 2px; BORDER-LEFT: #dedfde 1px solid; COLOR: #0061de; MARGIN-RIGHT: 3px; PADDING-TOP: 2px; BORDER-BOTTOM: #dedfde 1px solid; TEXT-DECORATION: none' value='确定' id='pager_jump_btn'/>");
res.append("</td></tr>");
res.append("<tr align='center'><td style='font-size:13px;'><tr><td style='COLOR: #0061de; MARGIN-RIGHT: 3px; PADDING-TOP: 2px; TEXT-DECORATION: none'>");
/** 开始条数 */
int startNum = (this.pageIndex - 1) * this.pageSize + 1;
/** 结束条数 */
int endNum = (this.pageIndex == this.totalPage) ? this.recordCount : this.pageIndex * this.pageSize;
res.append("总共<font color='red'>"+ this.recordCount +"</font>条记录，当前显示"+ startNum +"-"+ endNum +"条记录。");
res.append("</td></tr>");
res.append("</table>");
res.append("<script type='text/javascript'>");
res.append(" document.getElementById('pager_jump_btn').onclick = function(){");
res.append(" var page_size = document.getElementById('pager_jump_page_size').value;");
res.append(" if (!/^[1-9]\\d*$/.test(page_size) || page_size < 1 || page_size > "+ this.totalPage +"){");
res.append(" alert('请输入[1-"+ this.totalPage +"]之间的页码！');");
res.append(" }else{");
res.append(" var submit_url = '" + this.submitUrl + "';");
res.append(" window.location = submit_url.replace('"+ TAG +"', page_size);");
res.append(" }");
res.append("}");
res.append("</script>");
}else{
res.append("<table align='center' style='font-size:13px;'><tr><td style='COLOR: #0061de; MARGIN-RIGHT: 3px; PADDING-TOP: 2px; TEXT-DECORATION: none'>总共<font color='red'>0</font>条记录，当前显示0-0条记录。</td></tr></table>");
}
this.getJspContext().getOut().print(res.toString());
}
/** 计算中间页码的方法 */
private void calcPage(StringBuilder str) {
/** 判断总页数 */
if (this.totalPage <= 11){
/** 一次性显示全部的页码 */
for (int i = 1; i <= this.totalPage; i++){
if (this.pageIndex == i){
/** 当前页码 */
str.append("<span class='current'>"+ i +"</span>");
}else{
String tempUrl = this.submitUrl.replace(TAG, String.valueOf(i));
str.append("<a href='"+ tempUrl +"'>"+ i +"</a>");
}
}
}else{
/** 靠近首页 */
if (this.pageIndex <= 8){
for (int i = 1; i <= 10; i++){
if (this.pageIndex == i){
/** 当前页码 */
str.append("<span class='current'>"+ i +"</span>");
}else{
String tempUrl = this.submitUrl.replace(TAG, String.valueOf(i));
str.append("<a href='"+ tempUrl +"'>"+ i +"</a>");
}
}
str.append("...");
String tempUrl = this.submitUrl.replace(TAG, String.valueOf(this.totalPage));
str.append("<a href='"+ tempUrl +"'>"+ this.totalPage +"</a>");
}
/** 靠近尾页 */
else if (this.pageIndex + 8 >= this.totalPage){
String tempUrl = this.submitUrl.replace(TAG, String.valueOf(1));
str.append("<a href='"+ tempUrl +"'>1</a>");
str.append("...");
for (int i = this.totalPage - 10; i <= this.totalPage; i++){
if (this.pageIndex == i){
/** 当前页码 */
str.append("<span class='current'>"+ i +"</span>");
}else{
tempUrl = this.submitUrl.replace(TAG, String.valueOf(i));
str.append("<a href='"+ tempUrl +"'>"+ i +"</a>");
}
}
}
/** 在中间 */
else{
String tempUrl = this.submitUrl.replace(TAG, String.valueOf(1));
str.append("<a href='"+ tempUrl +"'>1</a>");
str.append("...");
for (int i = this.pageIndex - 4; i <= this.pageIndex + 4; i++){
if (this.pageIndex == i){
/** 当前页码 */
str.append("<span class='current'>"+ i +"</span>");
}else{
tempUrl = this.submitUrl.replace(TAG, String.valueOf(i));
str.append("<a href='"+ tempUrl +"'>"+ i +"</a>");
}
}
str.append("...");
tempUrl = this.submitUrl.replace(TAG, String.valueOf(this.totalPage));
str.append("<a href='"+ tempUrl +"'>"+ this.totalPage +"</a>");
}
}
}
/** setter 方法 */
public void setPageIndex(int pageIndex) {
this.pageIndex = pageIndex;
}
public void setPageSize(int pageSize) {
this.pageSize = pageSize;
}
public void setRecordCount(int recordCount) {
this.recordCount = recordCount;
}
public void setSubmitUrl(String submitUrl) {
this.submitUrl = submitUrl;
}
public void setStyle(String style) {
this.style = style;
}
}
1.4.2验证码有关
package com.hrf.util;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Arrays;
import java.util.Random;
import javax.imageio.ImageIO;
public class VerifyCodeUtils {
//使用到Algerian字体，系统里没有的话需要安装字体，字体只显示大写，去掉了1,0,i,o几个容易混淆的字符，以及占用太宽的字符W
public static final String VERIFY_CODES = "23456789ABCDEFGHJKLMNPQRSTUVXYZ";
private static Random random = new Random();
/**
* 使用系统默认字符源生成验证码
* @param verifySize 验证码长度
* @return
*/
public static String generateVerifyCode(int verifySize){
return generateVerifyCode(verifySize, VERIFY_CODES);
}
/**
* 使用指定源生成验证码
* @param verifySize 验证码长度
* @param sources 验证码字符源
* @return
*/
public static String generateVerifyCode(int verifySize, String sources){
if(sources == null || sources.length() == 0){
sources = VERIFY_CODES;
}
int codesLen = sources.length();
Random rand = new Random(System.currentTimeMillis());
StringBuilder verifyCode = new StringBuilder(verifySize);
for(int i = 0; i < verifySize; i++){
verifyCode.append(sources.charAt(rand.nextInt(codesLen-1)));
}
return verifyCode.toString();
}
/**
* 生成随机验证码文件,并返回验证码值
* @param w
* @param h
* @param outputFile
* @param verifySize
* @return
* @throws IOException
*/
public static String outputVerifyImage(int w, int h, File outputFile, int verifySize) throws IOException{
String verifyCode = generateVerifyCode(verifySize);
outputImage(w, h, outputFile, verifyCode);
return verifyCode;
}
/**
* 输出随机验证码图片流,并返回验证码值
* @param w
* @param h
* @param os
* @param verifySize
* @return
* @throws IOException
*/
public static String outputVerifyImage(int w, int h, OutputStream os, int verifySize) throws IOException{
String verifyCode = generateVerifyCode(verifySize);
outputImage(w, h, os, verifyCode);
return verifyCode;
}
/**
* 生成指定验证码图像文件
* @param w
* @param h
* @param outputFile
* @param code
* @throws IOException
*/
public static void outputImage(int w, int h, File outputFile, String code) throws IOException{
if(outputFile == null){
return;
}
File dir = outputFile.getParentFile();
if(!dir.exists()){
dir.mkdirs();
}
try{
outputFile.createNewFile();
FileOutputStream fos = new FileOutputStream(outputFile);
outputImage(w, h, fos, code);
fos.close();
} catch(IOException e){
throw e;
}
}
/**
* 输出指定验证码图片流
* @param w
* @param h
* @param os
* @param code
* @throws IOException
*/
public static void outputImage(int w, int h, OutputStream os, String code) throws IOException{
int verifySize = code.length();
BufferedImage image = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
Random rand = new Random();
Graphics2D g2 = image.createGraphics();
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON);
Color[] colors = new Color[5];
Color[] colorSpaces = new Color[] { Color.WHITE, Color.CYAN,
Color.GRAY, Color.LIGHT_GRAY, Color.MAGENTA, Color.ORANGE,
Color.PINK, Color.YELLOW };
float[] fractions = new float[colors.length];
for(int i = 0; i < colors.length; i++){
colors[i] = colorSpaces[rand.nextInt(colorSpaces.length)];
fractions[i] = rand.nextFloat();
}
Arrays.sort(fractions);
g2.setColor(Color.GRAY);// 设置边框色
g2.fillRect(0, 0, w, h);
Color c = getRandColor(200, 250);
g2.setColor(c);// 设置背景色
g2.fillRect(0, 2, w, h-4);
//绘制干扰线
Random random = new Random();
g2.setColor(getRandColor(160, 200));// 设置线条的颜色
for (int i = 0; i < 20; i++) {
int x = random.nextInt(w - 1);
int y = random.nextInt(h - 1);
int xl = random.nextInt(6) + 1;
int yl = random.nextInt(12) + 1;
g2.drawLine(x, y, x + xl + 40, y + yl + 20);
}
// 添加噪点
float yawpRate = 0.05f;// 噪声率
int area = (int) (yawpRate * w * h);
for (int i = 0; i < area; i++) {
int x = random.nextInt(w);
int y = random.nextInt(h);
int rgb = getRandomIntColor();
image.setRGB(x, y, rgb);
}
shear(g2, w, h, c);// 使图片扭曲
g2.setColor(getRandColor(100, 160));
int fontSize = h-4;
Font font = new Font("Algerian", Font.PLAIN, fontSize);
g2.setFont(font);
char[] chars = code.toCharArray();
for(int i = 0; i < verifySize; i++){
//AffineTransform affine = new AffineTransform();
//affine.setToRotation(Math.PI / 4 * rand.nextDouble() * (rand.nextBoolean() ? 1 : -1), (w / verifySize) * i + fontSize/2, h/2);
//g2.setTransform(affine);
g2.drawChars(chars, i, 1, ((w-10) / verifySize) * i + 5, h/2 + fontSize/2 - 10);
}
g2.dispose();
ImageIO.write(image, "jpg", os);
}
private static Color getRandColor(int fc, int bc) {
if (fc > 255)
fc = 255;
if (bc > 255)
bc = 255;
int r = fc + random.nextInt(bc - fc);
int g = fc + random.nextInt(bc - fc);
int b = fc + random.nextInt(bc - fc);
return new Color(r, g, b);
}
private static int getRandomIntColor() {
int[] rgb = getRandomRgb();
int color = 0;
for (int c : rgb) {
color = color << 8;
color = color | c;
}
return color;
}
private static int[] getRandomRgb() {
int[] rgb = new int[3];
for (int i = 0; i < 3; i++) {
rgb[i] = random.nextInt(255);
}
return rgb;
}
private static void shear(Graphics g, int w1, int h1, Color color) {
shearX(g, w1, h1, color);
shearY(g, w1, h1, color);
}
private static void shearX(Graphics g, int w1, int h1, Color color) {
int period = random.nextInt(2);
boolean borderGap = true;
int frames = 1;
int phase = random.nextInt(2);
for (int i = 0; i < h1; i++) {
double d = (double) (period >> 1)
* Math.sin((double) i / (double) period
+ (6.2831853071795862D * (double) phase)
/ (double) frames);
g.copyArea(0, i, w1, 1, (int) d, 0);
if (borderGap) {
g.setColor(color);
g.drawLine((int) d, i, 0, i);
g.drawLine((int) d + w1, i, w1, i);
}
}
}
private static void shearY(Graphics g, int w1, int h1, Color color) {
int period = random.nextInt(40) + 10; // 50;
boolean borderGap = true;
int frames = 20;
int phase = 7;
for (int i = 0; i < w1; i++) {
double d = (double) (period >> 1)
* Math.sin((double) i / (double) period
+ (6.2831853071795862D * (double) phase)
/ (double) frames);
g.copyArea(i, 0, 1, h1, 0, (int) d);
if (borderGap) {
g.setColor(color);
g.drawLine(i, (int) d, i, 0);
g.drawLine(i, (int) d + h1, i, h1);
}
}
}
}
1.4.3分页PageModel
package com.hrf.util;
import java.io.Serializable;
public class PageModel implements Serializable{
private Integer pageIndex=1;
private Integer pageSize=6;
private Integer recordCount;
public Integer getPageIndex() {
return pageIndex;
}
public void setPageIndex(Integer pageIndex) {
this.pageIndex = pageIndex;
}
public Integer getPageSize() {
return pageSize;
}
public void setPageSize(Integer pageSize) {
this.pageSize = pageSize;
}
public Integer getRecordCount() {
return recordCount;
}
public void setRecordCount(Integer recordCount) {
this.recordCount = recordCount;
}
public PageModel() {
super();
}
public PageModel(Integer pageIndex, Integer pageSize, Integer recordCount) {
super();
this.pageIndex = pageIndex;
this.pageSize = pageSize;
this.recordCount = recordCount;
}
}
可以不使用分页,但是需要使用分页插件
2.编写项目代码
2.1 创建controller层
2.2 创建service层
3. 用户登录模块的实现
3.1UserLoginController的实现,使用了shiro
package com.hrf.controller;
import com.hrf.bean.User;
import com.hrf.service.UserLoginService;
import com.hrf.util.VerifyCodeUtils;
import com.sun.org.apache.regexp.internal.RE;
import lombok.extern.slf4j.Slf4j;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.*;
import org.apache.shiro.subject.Subject;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
import java.util.List;
@Controller
@Slf4j
public class UserLoginController {
@Autowired
private UserLoginService userLoginService;
// 1.检查验证码
@RequestMapping("/checkCode")
public void checkCode(String num, HttpSession session, HttpServletResponse response) throws IOException {
ServletOutputStream outputStream = response.getOutputStream();
int w = 200, h = 80;
String code = VerifyCodeUtils.generateVerifyCode(4);
session.setAttribute("code",code);
VerifyCodeUtils.outputImage(w, h, outputStream, code);
outputStream.close();
}
// 2.登录
@RequestMapping("/login")
public String login(String loginname,String password, String user_input_verifyCode,Model model,HttpSession session) throws Exception {
// 如果用户名和密码都不为空,调用shiro验证用户名,密码是否正确
if (loginname==null||("").equals(loginname)){
model.addAttribute("msg","登录名不能为空");
throw new Exception("用户名不能为空");
}
if (password==null||("").equals(password)){
model.addAttribute("msg","密码不能为空");
throw new Exception("密码不能为空");
}
// if (user_input_verifyCode==null||("").equals(user_input_verifyCode)){
// model.addAttribute("msg","验证码不能为空");
// throw new Exception("验证码不能为空");
// }
// 将username和password封装为token对象
UsernamePasswordToken token = new UsernamePasswordToken(loginname, password);
// shiro验证看是否登录成功
try{
// shiro登录
Subject subject = SecurityUtils.getSubject();
subject.login(token);
// 根据loginname查询user
User user_session = userLoginService.findUserByLoginname(loginname);
session.setAttribute("user_session",user_session);
// 跳转到登录成功的页面
return "/jsp/index.jsp";
}catch (UnknownAccountException e){
// 登录失败,打印异常信息
log.error("用户名不存在");
}catch (LockedAccountException e){
log.error("账号被锁定");
}catch (IncorrectCredentialsException e){
log.error("密码错误");
}catch (AuthenticationException e) {
// 其他认证异常
log.error("登录失败");
}
model.addAttribute("msg","用户名或者密码错误!");
// 返回到登录页面
return "/jsp/loginForm.jsp";
}
// 3.首页显示
@RequestMapping("/welcome")
public String welcome(){
return "/jsp/welcome.jsp";
}
// 4.用户注册
@RequestMapping("/register/registCode")
public String registCode(){
System.out.println("用户注册");
return "/jsp/regist.jsp";
}
// 5.找回密码
@RequestMapping("/password/repassword")
public String repassword(){
System.out.println("找回密码!");
return "/jsp/findPwd.jsp";
}
@RequestMapping("/logOut")
public String logOut(HttpSession session){
// 从session中移除用户
session.removeAttribute("user_session");
// 让session失效
session.invalidate();
// 返回登录页面
return "/jsp/loginForm.jsp";
}
}
3.2自定义 realm类,进行认证,授权
package com.hrf.util;
import com.hrf.bean.User;
import com.hrf.service.UserLoginService;
import lombok.extern.slf4j.Slf4j;
import org.apache.shiro.authc.*;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.crypto.hash.Md5Hash;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.apache.shiro.util.ByteSource;
import org.springframework.beans.factory.annotation.Autowired;
import java.util.List;
/*
自定义认证类
*/
@Slf4j
public class MyRealm extends AuthorizingRealm {
@Autowired
private UserLoginService userLoginService;
@Override
protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
log.debug("开始授权---------");
//获取当前登录用户身份
String loginname = (String)principalCollection.getPrimaryPrincipal();
//关联数据库表，查找用户对应的角色、权限菜单
// 模拟数据
SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
info.addRole("admin");
return info;
// return null;
}
@Override
protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
log.debug("开始认证....");
//认证方法
UsernamePasswordToken token = (UsernamePasswordToken) authenticationToken;
//获取用户身份
String loginname = (String)token.getPrincipal();
// 获取密码凭证
//4.获取凭证 密码
char[] cs = (char[]) token.getCredentials();
String password = String.valueOf(cs);
//第一个参数 原码 第二个参数salt盐 第三个参数迭代次数
Md5Hash password1 = new Md5Hash(password,loginname,5);
System.out.println(password1);
//模拟数据，只有username等于admin，认为用户存在
User user = userLoginService.findUserByLoginname(loginname);
if (user!=null) {
return new SimpleAuthenticationInfo(loginname,
user.getPassword(),
ByteSource.Util.bytes(loginname),
getName());
}
return null;
}
}
注意:shiro的工作原理
一、Shiro运行流程
比如一个登陆流程：
1、首先调用Subject.login(token)进行登录，他会委托给SecurityManager
2、SecurityManager负责真正的身份验证逻辑；它会委托给Authenticator进行身份验证；
3、Authenticator会把相应的token传入Realm，从Realm获取身份验证信息，如果没有就返回认证失败，有的话就继续执行操作。
二 .描述Shiro认证过程
1、应用程序代码调用 Subject.login 方法，传递创建好的包含终端用户的 Principals(身份)和 Credentials(凭证)的 AuthenticationToken 实例；
2、Subject 实例委托应用程序的 SecurityManager 通过调用securityManager.login(token) 开始真正的验证；Subject 实例（通常为 DelegatingSubject或它的子类）
3、SubjectManager 接收 token，调用内部的 Authenticator 实例调用 authenticator.authenticate(token).Authenticator 通常是一个 ModularRealmAuthenticator 实例, 支持在身份验证中协调一个或多个Realm 实例；
4、如果应用程序中配置了一个以上的 Realm, ModularRealmAuthenticator 实例将利用配置好的AuthenticationStrategy 来启动 Multi-Realm 认证尝试。在Realms 被身份验证调用之前、调用期间、调用之后，AuthenticationStrategy 被调用使其能够对每个Realm 的结果作出反应。（AuthenticationStrategy都会被调用，对每个Realm 的结果作出反应）；
5、每个配置的 Realm 用来帮助看它是否支持提交的 AuthenticationToken. 如果支持, 那么支持 Realm 的 getAuthenticationInfo 方法将会伴随着提交的 token 被调用. getAuthenticationInfo 方法有效地代表一个特定 Realm 的单一的身份验证尝试。
三、如何配置在 Spring 中配置使用 Shiro
1 , 在 web.xml 中配置 Shiro 的 Filter；
2、在 Spring 的配置文件中配置 Shiro；
3、配置自定义 Realm：实现自定义认证和授权；
4、配置 Shiro 实体类使用的缓存策略；
5、配置 SecurityManager；
6、配置保证 Shiro 内部 Bean 声明周期都得到执行的 Lifecycle Bean 后置处理器；
4 .关于搜索进行模糊查询,分页,查询列表最好写在一个controller中
4.1 前端要写路径
4.1.1 index.jsp前端界面
<li>
<a href="javascript:;">
<i class="iconfont"></i>
<cite>下载中心</cite>
<i class="iconfont nav_right"></i>
</a>
<ul class="sub-menu">
<li>
<a _href="${pageContext.request.contextPath}/document/list">
<i class="iconfont"></i>
<cite>文档查询</cite>
</a>
</li>
<li id="document">
<a _href="${pageContext.request.contextPath}/document/toadd">
<i class="iconfont"></i>
<cite>上传文档</cite>
</a>
</li>
</ul>
</li>
4.1.2 list.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ taglib prefix="fkjava" uri="/pager-tags" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>文档信息</title>
<meta name="renderer" content="webkit">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="viewport" content="width=device-width,user-scalable=yes, minimum-scale=0.4, initial-scale=0.8,target-densitydpi=low-dpi" />
<link rel="shortcut icon" href="${pageContext.request.contextPath}/public/logo.ico" type="image/x-icon" />
<link rel="stylesheet" href="${pageContext.request.contextPath}/public/css/font.css">
<link rel="stylesheet" href="${pageContext.request.contextPath}/public/css/xadmin.css">
<script type="text/javascript" src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
<script type="text/javascript" src="${pageContext.request.contextPath}/public/lib/layui/layui.js" charset="utf-8"></script>
<script type="text/javascript" src="${pageContext.request.contextPath}/public/js/xadmin.js"></script>
<script type="text/javascript">
$(function(){
/** 下载文档功能 */
$("a[id^='down_']").click(function(){
/** 得到需要下载的文档的id */
var id = this.id.replace("down_","");
/** 下载该文档 */
window.location = "${pageContext.request.contextPath}/document/downLoad?id="+id;
})
})
</script>
<script type="text/javascript">
$(function(){
if(${count}!=0){
$("#count1").hide();
$("#count2").show();
}
var username = "${sessionScope.user_session.loginname}";
if(username=="admin"||username=="manager"){
$("#aaa").show();
$("#bbb").show();
$("#do").css("display", "block");
$("#ID").css("display", "block");
$('tr').find('td:eq(0)').show();
$('tr').find('td:eq(8)').show();
}else{
$("#aaa").hide();
$("#bbb").hide();
$("#do").css("display", "none");
$("#ID").css("display", "none");
$('tr').find('td:eq(8)').hide();
};
})
</script>
</head>
<body>
<div class="x-nav">
<span class="layui-breadcrumb">
<a href="">首页</a>
<a>
<cite>文档信息</cite></a>
</span>
<button id="aaa" type="button" οnclick="location.href='${pageContext.request.contextPath}/document/toadd'" class="layui-btn layui-btn-small" style="line-height:1.6em;margin-top:3px;float:innert;margin-left:75%;;" lay-submit="" lay-filter="sreach"><i class="layui-icon"></i>增加</button>
<a id="bbb" class="layui-btn layui-btn-small" style="line-height:1.6em;margin-top:3px;float:right" href="${pageContext.request.contextPath}/document/list" title="刷新">
<i class="layui-icon" style="line-height:30px">ဂ</i></a>
</div>
<div class="x-body">
<div class="layui-row" style="" align="center">
<form class="layui-form layui-col-md12 x-so" method="get" action="${pageContext.request.contextPath}/document/list">
<input type="text" name="content" style="width:50%;" placeholder="请输入查找内容" autocomplete="off" class="layui-input">
<button class="layui-btn" lay-submit="" lay-filter="sreach"><i class="layui-icon"></i></button>
</form>
</div>
<table class="layui-table">
<thead>
<tr>
<th>
<div class="layui-unselect header layui-form-checkbox" lay-skin="primary"><i class="layui-icon"></i></div>
</th>
<th>ID</th>
<th>标题</th>
<th>描述</th>
<th>文件名</th>
<th>发布日期</th>
<th>发布用户</th>
<th>下载</th>
<th id="do">操作</th>
</thead>
<tbody>
<c:forEach items="${requestScope.list}" var="document" varStatus="stat">
<tr>
<td>
<div class="layui-unselect layui-form-checkbox" lay-skin="primary" data-id='2'><i class="layui-icon"></i></div>
</td>
<td>${document.id}</td>
<td>${document.title }</td>
<td>${document.remark }</td>
<td>${document.filename }</td>
<td>${document.createdate}</td>
<td>${document.user.username }</td>
<td align="center" width="40px;"><a href="#" id="down_${document.id }">
<img width="20" height="20" title="下载" src="${pageContext.request.contextPath}/public/images/downLoad.png"/></a>
</td>
<td class="td-manage">
<a title="编辑" href='${pageContext.request.contextPath}/document/toedit?id=${document.id}'>
<i class="layui-icon"></i>
</a>
<a title="删除" οnclick="member_del(this,'${document.id }')" href="javascript:;">
<i class="layui-icon"></i>
</a>
</td>
</tr>
</c:forEach>
</tbody>
</table>
<!-- 分页标签 -->
<div style="margin-left: 400px;" id="count1">
<fkjava:pager
pageIndex="${requestScope.pageModel.pageIndex}"
pageSize="${requestScope.pageModel.pageSize}"
recordCount="${requestScope.pageModel.recordCount}"
style="digg"
submitUrl="${pageContext.request.contextPath}/document/list?pageIndex={0}"/>
</div>
<div style="margin-left: 500px; display: none;" id="count2">
<p style="color: rgb(0,97,222)">共查询到<font color="red">${count}</font>条数据</p>
</div>
</div>
<script>
/*用户-删除*/
function member_del(obj,id){
layer.confirm('确认要删除吗？',function(index){
//发异步删除数据
//等以后再使用异步，这里先使用
$.get("${pageContext.request.contextPath}/document/delete?id="+id);
$(obj).parents("tr").remove();
layer.msg('已删除!',{icon:1,time:1000});
location.reload();
});
}
function delAll (argument) {
var data = tableCheck.getData();
layer.confirm('确认要删除吗？'+data,function(index){
//捉到所有被选中的，发异步进行删除
layer.msg('删除成功', {icon: 1});
$(".layui-form-checked").not('.header').parents('tr').remove();
});
}
</script>
</body>
</html>
4.2 controller层编写
package com.hrf.controller;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import com.hrf.bean.Document;
import com.hrf.service.DocumentService;
import com.hrf.util.PageModel;
import com.hrf.util.UTF8String;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;
import javax.jws.WebParam;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.*;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.UUID;
@Controller
@RequestMapping("/document")
public class DocumentController {
@Autowired
private DocumentService documentService;
@RequestMapping("/list")
public String list(@RequestParam(name = "pageIndex",defaultValue = "1") Integer pageIndex,
@RequestParam(name = "content",defaultValue = "") String content,
PageModel pageModel,
Model model){
PageHelper.startPage(pageIndex,5);
List<Document> documentList = documentService.findDocumentList(content);
// 这是一个分页类
PageInfo pageInfo = new PageInfo(documentList);
List list = pageInfo.getList();
pageModel.setPageIndex(pageIndex);
pageModel.setRecordCount((int) pageInfo.getTotal());
model.addAttribute("list",list);
model.addAttribute("pageModel",pageModel);
return "/jsp/document/list.jsp";
}
}
4.3service层接口和实现类
4.3.1 接口
package com.hrf.service;
import com.hrf.bean.Document;
import org.springframework.stereotype.Component;
import java.util.List;
@Component
public interface DocumentService {
List<Document> findDocumentList(String content);
}
4.3.2 实现类
package com.hrf.service;
import com.hrf.bean.Document;
import com.hrf.mapper.DocumentMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
@Service
public class DocumentServiceImpl implements DocumentService{
@Autowired
private DocumentMapper documentMapper;
@Override
public List<Document> findDocumentList(String content) {
return documentMapper.selectAll(content);
}
}
4.4 mapper接口 和sql语句
4.4.1mapper接口
package com.hrf.mapper;
import com.hrf.bean.Document;
import org.springframework.stereotype.Component;
import java.util.List;
@Component
public interface DocumentMapper {
int deleteByPrimaryKey(Integer id);
}
4.4.2sql语句的实现
<resultMap id="BaseResultMap" type="com.hrf.bean.Document">
<id column="id" jdbcType="INTEGER" property="id" />
<result column="title" jdbcType="VARCHAR" property="title" />
<result column="filename" jdbcType="VARCHAR" property="filename" />
<result column="remark" jdbcType="VARCHAR" property="remark" />
<result column="createdate" jdbcType="TIMESTAMP" property="createdate" />
<result column="user_id" jdbcType="INTEGER" property="userId" />
<association property="user" javaType="User" autoMapping="true"/>
</resultMap>
<select id="selectAll" resultMap="BaseResultMap">
select d.id, title, filename, remark, d.createdate, d.user_id,u.username
from document_inf d
left join user_inf u on d.user_id=u.id
<where>
<if test="content!=null">
title like '%' #{content} '%'
</if>
</where>
</select>
4.5实现类
package com.hrf.bean;
import java.util.Date;
public class Document {
private Integer id;
private String title;
private String filename;
private String remark;
private Date createdate;
private Integer userId;
//关联关系一对一
private User user;
//也可以传入属性,但是最好传入属性
//private String username;
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title == null ? null : title.trim();
}
public String getFilename() {
return filename;
}
public void setFilename(String filename) {
this.filename = filename == null ? null : filename.trim();
}
public String getRemark() {
return remark;
}
public void setRemark(String remark) {
this.remark = remark == null ? null : remark.trim();
}
public Date getCreatedate() {
return createdate;
}
public void setCreatedate(Date createdate) {
this.createdate = createdate;
}
public Integer getUserId() {
return userId;
}
public void setUserId(Integer userId) {
this.userId = userId;
}
}
5. 不借助自定义标签实现分页
5.1controller层
@RequestMapping("/list")
public String list(@RequestParam(name = "page",defaultValue = "1") Integer page,
@RequestParam(name = "size",defaultValue = "5") Integer size,
@RequestParam(name = "content",defaultValue = "") String content,
HttpServletRequest request){
List<Employee> employeeList = employeeService.findEmployeeAll(page,size,content);
PageInfo pageInfos = new PageInfo(employeeList);
request.setAttribute("pageInfos",pageInfos);
return "/jsp/employee/list.jsp";
}
5.2service层实现类
@Override
public List<Employee> findEmployeeAll(@Param("page") Integer page,
@Param("size") Integer size,
@Param("content") String content) {
PageHelper.startPage(page,size);
return employeeMapper.selectAll2(content);
}
5.3 mapper里面的sql语句
<select id="selectAll2" resultMap="BaseResultMap">
select e.id, e.dept_id, e.job_id, e.name ename, e.card_id, e.address, e.phone, e.sex_id, e.education_id,
e.createdate, e.user_id, u.id uid, u.username , u.email,j.name jname, d.name dname, ed.name edname ,s.name sexname
from employee_inf e left join user_inf u on e.user_id=u.id
left join job_inf j on e.job_id=j.id
left join dept_inf d on e.dept_id=d.id
left join education_inf ed on e.education_id=ed.id
LEFT JOIN sex_inf s ON e.sex_id = s.id
<where>
<if test="content!=null">
or e.name like '%' #{content} '%'
</if>
<if test="content!=null">
or e.address like '%' #{content} '%'
</if>
<if test="content!=null">
or u.username like '%' #{content} '%'
</if>
<if test="content!=null">
or j.name like '%' #{content} '%'
</if>
<if test="content!=null">
or d.name like '%' #{content} '%'
</if>
<if test="content!=null">
or ed.name like '%' #{content} '%'
</if>
</where>
</select>
<resultMap id="BaseResultMap" type="com.hrf.bean.Employee">
<id column="id" jdbcType="INTEGER" property="id" />
<result column="dept_id" jdbcType="INTEGER" property="deptId" />
<result column="job_id" jdbcType="INTEGER" property="jobId" />
<result column="ename" jdbcType="VARCHAR" property="name" />
<result column="card_id" jdbcType="VARCHAR" property="cardId" />
<result column="address" jdbcType="VARCHAR" property="address" />
<result column="phone" jdbcType="VARCHAR" property="phone" />
<result column="sex_id" jdbcType="INTEGER" property="sexId" />
<result column="education_id" jdbcType="INTEGER" property="educationId" />
<result column="createdate" jdbcType="TIMESTAMP" property="createdate" />
<result column="user_id" jdbcType="INTEGER" property="userId" />
<association property="user" javaType="User" autoMapping="true">
</association>
<association property="job" javaType="Job" autoMapping="true">
<result property="name" column="jname"/>
</association>
<association property="dept" javaType="Dept" autoMapping="true">
<result property="name" column="dname"/>
</association>
<association property="education" javaType="Education" autoMapping="true">
<result property="name" column="edname"/>
</association>
<association property="sex" javaType="Sex" autoMapping="true">
<result property="name" column="sname"/>
</association>
</resultMap>
5.4前端实现
5.4.1jsp代码
<link rel="stylesheet" href="${pageContext.request.contextPath}/public/css/myPage.css">
<c:forEach items="${requestScope.pageInfos.list}" var="employee" varStatus="stat">
<tr>
<td>
<div class="layui-unselect layui-form-checkbox" lay-skin="primary" data-id='2'><i class="layui-icon"></i></div>
</td>
<td>${employee.name }</td>
<td>${employee.user.username}</td> <!--方便知道谁和谁关联 -->
<td>
<c:choose>
<c:when test="${employee.sexId==1}">男</c:when>
<c:otherwise><font>女</font></c:otherwise>
</c:choose>
</td>
<td>${employee.phone }</td>
<td>${employee.user.email }</td>
<td>${employee.job.name }</td>
<td>${employee.dept.name }</td>
<td>${employee.education.name }</td>
<td>${employee.cardId }</td>
<td>${employee.address }</td>
<td>${employee.createdate}</td>
<td class="td-manage">
<a title="编辑" href='${pageContext.request.contextPath}/employee/toedit?id=${employee.id}'>
<i class="layui-icon"></i>
</a>
<a title="删除" οnclick="member_del(this,'${employee.id}')" href="javascript:;">
<i class="layui-icon"></i>
</a>
</td>
</tr>
</c:forEach>
</tbody>
</table>
<!-- 分页标签 -->
<div style="margin-left: 400px;" id="count1">
<ul class="pagination modal-1">
<li><a href="${pageContext.request.contextPath}/employee/list?page=1&size=5" class="pre">首页</a></li>
<c:if test="${pageInfos.pageNum==1}">
<li><a href="${pageContext.request.contextPath}/employee/list?page=1&size=5" class="prev">上一页</a></li>
</c:if>
<c:if test="${pageInfos.pageNum!=1}">
<li><a href="${pageContext.request.contextPath}/employee/list?page=${pageInfos.pageNum-1}&size=5" class="prev">上一页</a></li>
</c:if>
<c:forEach begin="1" end="${pageInfos.pages}" var="pageNumber">
<li><a href="${pageContext.request.contextPath}/employee/list?page=${pageNumber}&size=5" class="active">${pageNumber}</a></li>
</c:forEach>
<c:if test="${pageInfos.pageNum!=pageInfos.pages}">
<li><a href="${pageContext.request.contextPath}/employee/list?page=${pageInfos.pageNum+1}&size=5" class="next">下一页</a></li>
</c:if>
<c:if test="${pageInfos.pageNum==pageInfos.pages}">
<li><a href="${pageContext.request.contextPath}/employee/list?page=${pageInfos.pages}&size=5" class="next">下一页</a></li>
</c:if>
<li><a href="${pageContext.request.contextPath}/employee/list?page=${pageInfos.pages}&size=5" class="next">尾页</a></li>
</ul>
</div>
5.4.2 css代码给他样式
.pagination {
list-style: none;
display: inline-block;
padding: 0;
margin-top: 10px;
}
.pagination li {
display: inline;
text-align: center;
}
.pagination a {
float: left;
display: block;
font-size: 14px;
text-decoration: none;
padding: 5px 12px;
color: #fff;
margin-left: -1px;
border: 1px solid transparent;
line-height: 1.5;
}
.pagination a.active {
cursor: default;
}
.pagination a:active {
outline: none;
}
.modal-1 li:first-child a {
-moz-border-radius: 6px 0 0 6px;
-webkit-border-radius: 6px;
border-radius: 6px 0 0 6px;
}
.modal-1 li:last-child a {
-moz-border-radius: 0 6px 6px 0;
-webkit-border-radius: 0;
border-radius: 0 6px 6px 0;
}
.modal-1 a {
border-color: #ddd;
color: #4285F4;
background: #fff;
}
.modal-1 a:hover {
background: #eee;
}
.modal-1 a.active, .modal-1 a:active {
border-color: #4285F4;
background: #4285F4;
color: #fff;
}
5.6最后分页的结果样式
6.文件的上传与下载
6.1 文件的上传
6.1.1 前端页面的实现必须有三点
（1）：上传文件是上传到服务器上，而保存到数据库是文件名
（2）：上传文件是以文件转换为二进制流的形式上传的
（3）： enctype="multipart/form-data"需要设置在form里面，否则无法提交文件
</head>
<body>
<div class="x-body">
<form class="layui-form" method="POST" id="deptForm" enctype="multipart/form-data" action="${pageContext.request.contextPath}/document/add">
<input type="hidden" name="id" id="id" value="${document.id }" >
<input type="hidden" name="userId" id="user_id" value="${sessionScope.user_session.id}" >
<div class="layui-form-item">
<label for="username" class="layui-form-label">
<span class="x-red">*</span>标题
</label>
<div class="layui-input-inline">
<input type="text" id="title" name="title" required="" lay-verify="required"
placeholder="不少于3个汉字" autocomplete="off" class="layui-input" value="${document.title }">
</div>
</div>
<div class="layui-form-item">
<label for="username" class="layui-form-label">
<span class="x-red">*</span>描述
</label>
<div class="layui-input-inline">
<input type="text" id="remark" name="remark" required="" lay-verify="required"
placeholder="不少于5个汉字" autocomplete="off" class="layui-input" value="${document.remark }">
</div>
</div>
<div class="layui-form-item">
<label for="username" class="layui-form-label">
<span class="x-red">*</span>上传文件
</label>
<div class="layui-input-inline">
<input type="file" id="file" name="file" >
<p class="x-red">必须选择上传文件</p>
<p class="x-red">${param.message}</p>
</div>
</div>
<div class="layui-form-item">
<label for="L_repass" class="layui-form-label">
</label>
<input type="submit" value=" 提交" class="layui-btn" lay-filter="add" lay-submit=""/>
</div>
</form>
</div>
</body>
</html>
6.1.2 controller层方法实现
进行新增操作,文件上传
@RequestMapping("/add")
public String add(Document document,
@RequestParam("file") MultipartFile multipartFile,
HttpServletRequest request) throws ParseException, IOException {
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//设置日期格式
document.setCreatedate(df.parse(df.format(new Date())));
// 进行上传文档
// 获取文件上传到具体文件夹的绝对路径
String realpath = request.getSession().getServletContext().getRealPath("/upload/");
// 获取上传的文件名
String fileName = multipartFile.getOriginalFilename();
//为了确保上传文件的重名问题，对文件名进行处理
fileName = UUID.randomUUID().toString() +"_"+ fileName;
// 根据路径构建文件对象
// 在构建过程中一定要注意路径问题
File uploadFile = new File(realpath, fileName);
// 判断指定文件夹uploadfiles是否存在，不存在就创建
if (!uploadFile.exists()) {
uploadFile.mkdirs();
}
// 上传文件
multipartFile.transferTo(uploadFile);
document.setFilename(fileName);
documentService.addDocument(document);
return "redirect:/document/list";
}
6.2文件的下载
// 文件下载
@RequestMapping("/downLoad")
public String downLoad(HttpServletRequest request,
HttpServletResponse response,
Integer id) throws IOException {
// 获取文件名
Document document = documentService.findDocumentById(id);
String filename = document.getFilename();
// 获取下载的文件路径
String realpath = request.getSession().getServletContext().getRealPath("/WEB-INF/files/");
// 设置下载文件时的响应报头
response.setHeader("Content-Type", "application/x-msdownload");
response.setHeader("Content-Disposition", "attachment;filename=" + UTF8String.toUTF8String(filename));
// 获取文件输入流
FileInputStream in = new FileInputStream(new File(realpath, filename));
// 获得响应对象的输出流，用于向客户端输出二进制数据
ServletOutputStream out = response.getOutputStream();
out.flush();
int aRead = 0;
byte[] b = new byte[1024];
// 写到响应输出流
while ((aRead = in.read(b)) != -1 && in != null) {
out.write(b, 0, aRead);
}
out.flush();
// 关闭IO对象
in.close();
out.close();
return "redirect:/document/list";
}
/**
* 下载时保存中文文件名的字符编码转换方法
*/
public String toUTF8String(String str) {
StringBuffer sb = new StringBuffer();
int len = str.length();
for (int i = 0; i < len; i++) {
// 取出字符串中的每个字符
char c = str.charAt(i);
// Unicode码值为0-255时，不作处理
if (c >= 0 && c <= 255) {
sb.append(c);
} else {
// 转换成utf-8编码
byte[] b;
try {
b = Character.toString(c).getBytes("UTF-8");
} catch (UnsupportedEncodingException e) {
// TODO: handle exception
e.printStackTrace();
b = null;
}
// 转换为%HH的字符串形式
for (int j = 0; j < b.length; j++) {
int k = b[j];
if (k < 0) {
k &= 255;
}
sb.append("%" + Integer.toHexString(k).toUpperCase());
}
}
}
return sb.toString();
}
7. 批量添加人员(以员工为例)
7.1批量工具类
package com.hrf.util;
import com.hrf.bean.Employee;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import java.io.FileInputStream;
import java.util.ArrayList;
import java.util.List;
public class ExcelData {
private XSSFSheet sheet;
/**
* 构造函数，初始化excel数据
* @param filePath excel路径
* @param sheetName sheet表名
*/
public ExcelData(String filePath, String sheetName){
FileInputStream fileInputStream = null;
try {
fileInputStream = new FileInputStream(filePath);
XSSFWorkbook sheets = new XSSFWorkbook(fileInputStream);
//获取sheet
sheet = sheets.getSheet(sheetName);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 根据行和列的索引获取单元格的数据
* @param row
* @param column
* @return
*/
public String getExcelDateByIndex(int row,int column){
XSSFRow row1 = sheet.getRow(row);
String cell = row1.getCell(column).toString();
return cell;
}
/**
* 根据某一列值为“******”的这一行，来获取该行第x列的值
* @param caseName
* @param currentColumn 当前单元格列的索引
* @param targetColumn 目标单元格列的索引
* @return
*/
public String getCellByCaseName(String caseName,int currentColumn,int targetColumn){
String operateSteps="";
//获取行数
int rows = sheet.getPhysicalNumberOfRows();
for(int i=0;i<rows;i++){
XSSFRow row = sheet.getRow(i);
String cell = row.getCell(currentColumn).toString();
if(cell.equals(caseName)){
operateSteps = row.getCell(targetColumn).toString();
break;
}
}
return operateSteps;
}
//打印excel数据
public void readExcelData(){
//获取行数
int rows = sheet.getPhysicalNumberOfRows();
for(int i=0;i<rows;i++){
//获取列数
XSSFRow row = sheet.getRow(i);
int columns = row.getPhysicalNumberOfCells();
for(int j=0;j<columns;j++){
String cell = row.getCell(j).toString();
System.out.println(cell);
}
}
}
//获取长度
public int len(String file){
ExcelData sheet1 = new ExcelData(file, "Sheet1");
int i=0;
while (true){
try {
String c=sheet1.getExcelDateByIndex(i,0);
i++;
}catch (NullPointerException e){
break;
}
}
return i;
}
//测试方法
public static void main(String[] args){
}
//读取对象
public List<Employee> employeeList(String file){
ExcelData excelData=new ExcelData(file,"Sheet1");
int i=excelData.len(file);
//System.out.println(i);
List<Employee> list=new ArrayList<>();
for(int j=1;j<i;j++){
String id=excelData.getExcelDateByIndex(j,0);
String dept_id=excelData.getExcelDateByIndex(j,1);
String job_id=excelData.getExcelDateByIndex(j,2);
String name=excelData.getExcelDateByIndex(j,3);
String card_id=excelData.getExcelDateByIndex(j,4);
String address=excelData.getExcelDateByIndex(j,5);
String phone=excelData.getExcelDateByIndex(j,6);
String sex_id=excelData.getExcelDateByIndex(j,7);
String education_id=excelData.getExcelDateByIndex(j,8);
Employee employee=new Employee();
employee.setId(Integer.parseInt(id));
employee.setDeptId(Integer.parseInt(dept_id));
employee.setJobId(Integer.parseInt(job_id));
employee.setName(name);
employee.setCardId(card_id);
employee.setAddress(address);
employee.setPhone(phone);
employee.setSexId(Integer.parseInt(sex_id));
employee.setEducationId(Integer.parseInt(education_id));
list.add(employee);
}
return list;
}
}
7.2 controller层方法
// 进行批量加入
@RequestMapping("/piliang")
public String piliang(@RequestParam("file") MultipartFile file,
HttpServletRequest req,
Model model) throws IOException {
// 需要设计到文件的上传与下载
String fileName= file.getName();
String uploadPath= WebUtils.getRealPath(req.getSession().getServletContext(),"/upload/");
String path= uploadPath+ new SimpleDateFormat("yyyyMMddHHmmss").format(new Date()) + fileName;
file.transferTo(new File(path));
ExcelData excelData=new ExcelData(path,"sheet1");
List<Employee> list=excelData.employeeList(path);
int i=employeeService.pladd(list);
if (i!=0){
model.addAttribute("message","ok");
}else {
model.addAttribute("message","error");
}
return "redirect:/employee/list";
}
8 数据可视化
8.1数据可视化工具类
package com.hrf.util;
public class ChartsVo {
private String name;
private Integer value;
private Integer mailmarketing;
private Integer allianceadvertising;
private Integer videoadvertising;
private Integer directaccess;
private Integer searchengine;
public Integer getMailmarketing() {
return mailmarketing;
}
public void setMailmarketing(Integer mailmarketing) {
this.mailmarketing = mailmarketing;
}
public Integer getAllianceadvertising() {
return allianceadvertising;
}
public void setAllianceadvertising(Integer allianceadvertising) {
this.allianceadvertising = allianceadvertising;
}
public Integer getVideoadvertising() {
return videoadvertising;
}
public void setVideoadvertising(Integer videoadvertising) {
this.videoadvertising = videoadvertising;
}
public Integer getDirectaccess() {
return directaccess;
}
public void setDirectaccess(Integer directaccess) {
this.directaccess = directaccess;
}
public Integer getSearchengine() {
return searchengine;
}
public void setSearchengine(Integer searchengine) {
this.searchengine = searchengine;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getValue() {
return value;
}
public void setValue(Integer value) {
this.value = value;
}
public ChartsVo() {
}
public ChartsVo(String name, Integer value) {
this.name = name;
this.value = value;
}
}
8.2controller层中的方法
package com.hrf.controller;
import com.hrf.service.EmployeeService;
import com.hrf.util.ChartsVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import java.util.List;
@Controller
public class StatisticsController {
@Autowired
private EmployeeService employeeService;
// 进行数据可视化
@RequestMapping("/statistics")
public String statistics(){
return "/jsp/statistics/statistics.jsp";
}
//获取男女比例个数
@RequestMapping("/echartsData")
@ResponseBody
public List<ChartsVo> echartsData() {
List<ChartsVo> list= employeeService.getSexCount();
return list;
}
//获取各个职位的员工个数
@RequestMapping("/echartsData1")
@ResponseBody
public List<ChartsVo> echartsData1() {
List<ChartsVo> list= employeeService.getJobCount();
return list;
}
//获取一周处理的业务的类型的个数
@RequestMapping("/echartsData2")
@ResponseBody
public List<ChartsVo> echartsData2() {
List<ChartsVo> list= employeeService.getBusinessCount();
return list;
}
//获取各个员工居住地址的个数
@RequestMapping("/echartsData3")
@ResponseBody
public List<ChartsVo> echartsData3() {
List<ChartsVo> list= employeeService.getAddressCount();
return list;
}
}
8.3service层实现类中的方法
//获取男女比例个数
@Override
public List<ChartsVo> getSexCount() {
List<ChartsVo> list = new ArrayList<>();
int male = employeeMapper.selectByMale();
ChartsVo maleChartsVo = new ChartsVo("男性",male);
list.add(maleChartsVo);
int female = employeeMapper.selectByFemale();
ChartsVo femaleChartsVo = new ChartsVo("女性",female);
list.add(femaleChartsVo);
return list;
}
//获取各个职位的员工个数
@Override
public List<ChartsVo> getJobCount() {
return employeeMapper.getJobCount();
}
//获取一周处理的业务的类型的个数
@Override
public List<ChartsVo> getBusinessCount() {
return employeeMapper.getBusinessCount();
}
//获取各个员工居住地址的个数
@Override
public List<ChartsVo> getAddressCount() {
return employeeMapper.getAddressCount();
}
8.4mapper里面的sql语句
<!-- 查询员工性别为男性的数目-->
<select id="selectByMale" resultType="int">
select count(*) from employee_inf e ,sex_inf s where e.sex_id=s.id and s.name= '男'
</select>
<!-- 查询员工性别为女性的数目-->
<select id="selectByFemale" resultType="int">
select count(*) from employee_inf e ,sex_inf s where e.sex_id=s.id and s.name= '女'
</select>
<!-- 查询各个职位员工的个数-->
<select id="getJobCount" resultType="com.hrf.util.ChartsVo">
select count(e.job_id) value,j.name from employee_inf e join job_inf j on e.job_id=j.id group by e.job_id
</select>
<!-- 获取一周处理的业务的类型的个数-->
<select id="getBusinessCount" resultType="com.hrf.util.ChartsVo">
select * from business_inf
</select>
<!-- 获取各个员工居住地址的个数-->
<select id="getAddressCount" resultType="com.hrf.util.ChartsVo">
select count(*) value ,address name from employee_inf group by address
</select>
标签：总结,return,String,人事,int,管理系统,id,import,public 来源： https://blog.csdn.net/weixin_43447266/article/details/121665687
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