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快速搭建SSM项目【最全教程】~令狐小哥版

2020-12-16 19:33:29  阅读：195  来源： 互联网

标签：xml spring 小哥 springframework SSM org ay import 令狐


快速搭建SSM项目【最全教程】~令狐小哥版

文章目录

​ 众所周知，SSM项目是指spring+springmvc+mybatis合成的一个项目，接下来将带着大家快速搭建SSM项目

一、创建项目

  • 在这里我们使用的是Intellj Idea作为开发工具进行创建

项目结构如图：

二、集成spring依赖

 <!--spring start -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <!--suppress UnresolvedMavenProperty -->
      <version>4.3.20.RELEASE</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-beans</artifactId>
      <!--suppress UnresolvedMavenProperty -->
      <version>4.3.20.RELEASE</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <!--suppress UnresolvedMavenProperty -->
      <version>4.3.20.RELEASE</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context-support</artifactId>
      <version>4.3.20.RELEASE</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-aop</artifactId>
      <version>4.3.20.RELEASE</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-aspects</artifactId>
      <version>4.3.20.RELEASE</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-expression</artifactId>
      <version>4.3.20.RELEASE</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-tx</artifactId>
      <version>4.3.20.RELEASE</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>4.3.20.RELEASE</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>4.3.20.RELEASE</version>
    </dependency>
    <!--spring end -->

三、创建applicationContext.xml文件

  • 创建它的核心目的是为了创建注解扫描指定包下面的类
<?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"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    <context:component-scan base-package="com.ay"/>
</beans>

四、配置web.xml配置文件

<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
  <display-name>Archetype Created Web Application</display-name>
  <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>
  <!--配置DispatcherServlet -->
  <servlet>
    <servlet-name>spring-dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!-- 配置SpringMVC需要加载的配置文件 spring-mvc.xml -->
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:spring-mvc.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>spring-dispatcher</servlet-name>
    <!--默认匹配所有的请求 -->
    <url-pattern>/</url-pattern>
  </servlet-mapping>



</web-app>

五、创建springTest类进行测试

package com.ay.test;

import org.junit.jupiter.api.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.stereotype.Service;

@Service
public class SpringTest {
    @Test
    public void testSpring(){
        ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml");
        SpringTest springTest = (SpringTest) applicationContext.getBean("springTest");

        springTest.sayHello();
    }
    public void sayHello(){
        System.out.println("Hello ay");
    }
}

六、集成springmvc框架

  • 添加springmvc依赖
<!--springmvc start -->
    <dependency>
      <groupId>jstl</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <!--suppress UnresolvedMavenProperty -->
      <version>3.1.0</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <!--suppress UnresolvedMavenProperty -->
      <version>4.3.20.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.12</version>
      <scope>compile</scope>
    </dependency>
    <dependency>
      <groupId>org.junit.jupiter</groupId>
      <artifactId>junit-jupiter</artifactId>
      <version>RELEASE</version>
      <scope>compile</scope>
    </dependency>
    <!--springmvc end -->

七、在web.xml中添加DispatcherServlet设置

<!--配置DispatcherServlet -->
  <servlet>
    <servlet-name>spring-dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!-- 配置SpringMVC需要加载的配置文件 spring-mvc.xml -->
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:spring-mvc.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>spring-dispatcher</servlet-name>
    <!--默认匹配所有的请求 -->
    <url-pattern>/</url-pattern>
  </servlet-mapping>

八、配置spring-mvc.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
        http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop.xsd">

    <!-- 扫描controller(后端控制器),并且扫描其中的注解-->
    <context:component-scan base-package="com.ay.controller"/>
    <!--设置配置方案 -->
    <mvc:annotation-driven/>

    <!-- 自定义RequestMappingHandlerAdapter -->
    <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">
        <property name="messageConverters">
            <list>
                <bean class="org.springframework.http.converter.ByteArrayHttpMessageConverter"/>
                <bean class="org.springframework.http.converter.StringHttpMessageConverter"/>
                <bean class="org.springframework.http.converter.xml.SourceHttpMessageConverter"/>
            </list>
        </property>
    </bean>

    <bean id="conversionService" class="org.springframework.context.support.ConversionServiceFactoryBean"/>

    <!--配置JSP　显示ViewResolver(视图解析器)-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
        <property name="prefix" value="/WEB-INF/views/"/>
        <property name="suffix" value=".jsp"/>
    </bean>

    <aop:aspectj-autoproxy proxy-target-class="true">
    </aop:aspectj-autoproxy>
</beans>

九、创建hello.jsp文件

<%--
  Created by IntelliJ IDEA.
  User: 编程小哥令狐
  Date: 2020/12/14
  Time: 15:25
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
    hello ,ay
</body>
</html>

十、集成mybatis

10.1、导入mybatis框架所需依赖

pom.xml

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.7</maven.compiler.source>
    <maven.compiler.target>1.7</maven.compiler.target>
    <javax.servlet.version>4.0.0</javax.servlet.version>
    <jstl.version>1.2</jstl.version>
    <mybatis.version>3.4.6</mybatis.version>
    <mysql.connector.java.version>8.0.9-rc</mysql.connector.java.version>
    <druid.version>1.1.9</druid.version>
    <mybatis.spring.version>1.3.2</mybatis.spring.version>
  </properties>

<!--mybatis start -->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>8.0.16</version>
    </dependency>

    <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>druid</artifactId>
      <version>${druid.version}</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>5.2.9.RELEASE</version>
    </dependency>

    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>${mybatis.version}</version>
    </dependency>

    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>${mybatis.spring.version}</version>
    </dependency>
    <!--mybatis end -->

10.2、创建jdbc.properties文件

jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://127.0.0.1:3306/springmvc-mybatis-book?serverTimezone=GMT&useSSL=false
jdbc.username=root
jdbc.password=123456

10.3、配置applicationContext.xml文件

<?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:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans-2.5.xsd

           http://www.springframework.org/schema/tx
           http://www.springframework.org/schema/tx/spring-tx.xsd

           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-2.5.xsd">


    <context:component-scan base-package="com.ay"/>

    <!--1、配置数据库相关参数-->
    <context:property-placeholder location="classpath:jdbc.properties"/>

    <!--2.数据源 druid -->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
        <property name="driverClassName" value="${jdbc.driverClassName}"/>
        <property name="url" value="${jdbc.url}"/>
        <property name="username" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
    </bean>


    <!--3、配置SqlSessionFactory对象-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!--注入数据库连接池-->
        <property name="dataSource" ref="dataSource"/>
        <!--扫描sql配置文件:mapper需要的xml文件-->
        <property name="mapperLocations" value="classpath:mapper/*.xml"/>
    </bean>

    <bean id="sqlSession" class="org.mybatis.spring.SqlSessionTemplate">
        <constructor-arg index="0" ref="sqlSessionFactory"/>
    </bean>

    <!-- 扫描basePackage下所有以@MyBatisDao注解的接口 -->
    <bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        <property name="basePackage" value="com.ay.dao"/>

    </bean>
</beans>

十一、创建数据库表结构

  • 数据库名：springmvc-mybatis-book
  • 表名称：ay_user
  • 数据库工具：Navicat for MySQL
  • SQL创建命令：
/*
 Navicat Premium Data Transfer

 Source Server         : localhost_3306
 Source Server Type    : MySQL
 Source Server Version : 80011
 Source Host           : localhost:3306
 Source Schema         : springmvc-mybatis-book

 Target Server Type    : MySQL
 Target Server Version : 80011
 File Encoding         : 65001

 Date: 16/12/2020 18:45:59
*/

SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;

-- ----------------------------
-- Table structure for ay_user
-- ----------------------------
DROP TABLE IF EXISTS `ay_user`;
CREATE TABLE `ay_user`  (
  `id` bigint(32) NOT NULL AUTO_INCREMENT,
  `name` varchar(10) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `password` varchar(64) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 5 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;

-- ----------------------------
-- Records of ay_user
-- ----------------------------
INSERT INTO `ay_user` VALUES (1, '阿毅', '123');
INSERT INTO `ay_user` VALUES (2, '阿兰', '123');

SET FOREIGN_KEY_CHECKS = 1;

十二、创建实体类

12.1、创建model层的AyUser类

package com.ay.model;
import java.io.Serializable;
import java.util.List;

/**
 * 用户实体
 *
 * @author Ay
 * @date 2018/04/02
 */
public class AyUser implements Serializable {

    private Integer id;

    private String name;

    private String password;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

}

12.2、创建dao层AyUserDao接口

package com.ay.dao;
import com.ay.model.AyUser;
import org.apache.ibatis.annotations.*;
import org.apache.ibatis.session.RowBounds;
import org.springframework.stereotype.Repository;
import java.util.List;
import java.util.Map;
@Repository
public interface AyUserDao {
    List<AyUser> findAll();
}

12.3、创建service层AyUserService接口

package com.ay.service;
import com.ay.model.AyUser;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.session.RowBounds;
import java.util.List;
import java.util.Map;
public interface AyUserService {
    List<AyUser> findAll();
}

12.4、创建impl文件夹存放一个新的AyUserService接口实现类AyUserServiceImpl

package com.ay.service.impl;
import com.ay.dao.AyUserDao;
import com.ay.model.AyUser;
import com.ay.service.AyUserService;
import org.apache.ibatis.session.RowBounds;
import org.springframework.stereotype.Repository;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import javax.annotation.Resource;
import java.util.List;
import java.util.Map;
@Service
public class AyUserServiceImpl implements AyUserService {
    @Resource
    private AyUserDao ayUserDao;
    public List<AyUser> findAll() {
        return ayUserDao.findAll();
    }
}

12.5、创建controller层和AyUserController类

package com.ay.controller;

import com.ay.model.AyUser;
import com.ay.service.AyUserService;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.validation.Errors;
import org.springframework.validation.ObjectError;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;

import java.util.List;

/**
 * 用户控制层
 *
 * @author Ay
 * @date 2020/04/02
 */
@Controller
@RequestMapping("/user")
public class AyUserController {

    @Resource
    private AyUserService ayUserService;
    @GetMapping("/findAll")
   public String findAll(Model model){
       List<AyUser> ayUserList = ayUserService.findAll();
        for(AyUser ayUser : ayUserList){
           System.out.println("id: " + ayUser.getId());
            System.out.println("name: " + ayUser.getName());
        }
        return "hello";
   }

}

12.6、在resources/mapper文件下创建AyUserMapper.xml文件

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.ay.dao.AyUserDao">

    <sql id="userField">
        a.id as "id",
        a.name as "name",
        a.password as "password"
    </sql>

    <select id="findAll" resultType="com.ay.model.AyUser">
        select
        <include refid="userField"/>
        from ay_user a
    </select>


</mapper>

十三、访问：http://localhost:8080/SSM_war/user/findAll

6、在resources/mapper文件下创建AyUserMapper.xml文件

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.ay.dao.AyUserDao">

    <sql id="userField">
        a.id as "id",
        a.name as "name",
        a.password as "password"
    </sql>

    <select id="findAll" resultType="com.ay.model.AyUser">
        select
        <include refid="userField"/>
        from ay_user a
    </select>


</mapper>

十三、访问：http://localhost:8080/SSM_war/user/findAll

标签：xml,spring,小哥,springframework,SSM,org,ay,import,令狐
来源： https://blog.csdn.net/weixin_43891901/article/details/111300648

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