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【SpringBoot】集成Dubbo，Mybatis，Spring，SpringMVC，JSP

2021-03-16 13:04:30  阅读：92  来源： 互联网

标签：Dubbo springboot SpringMVC spring boot import com id SpringBoot


文章目录

SpringBoot集成Dubbo，Mybatis，Spring，SpringMVC，JSP

a.接口工程：存放实体bean和业务接口

b.服务提供者：它是一个SpringBoot框架web项目，集成MyBatis，Redis

  • 添加依赖：MyBatis依赖，MySQL驱动依赖，Dubbo依赖，Zookeeper依赖，Redis依赖
  • 配置springboot核心配置文件
    • 配置连接数据库
    • 配置连接redis
    • 配置dubbo

c.服务消费者：它是一个springboot框架web项目，集成JSP，Dubbo

  • 添加依赖：Dubbo依赖，zookeeper依赖，解析JSP页面依赖，接口工程
  • 配置SpringBoot核心配置文件
    • 配置视图解析器
    • 配置Dubbo

a.接口工程

在这里插入图片描述

Student

package com.utkvrjan.springboot.model;

import java.io.Serializable;

public class Student implements Serializable {
    private Integer id;

    private String name;

    private Integer age;

    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 Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }
}

StduentService

package com.utkvrjan.springboot.service;

import com.utkvrjan.springboot.model.Student;

public interface StudentService {

    Student queryStudentById(Integer id);

    Integer queryAllStudentCount();
}

pom

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.utkvrjan.springboot</groupId>
    <artifactId>024-springboot-dubbo-ssm-interface</artifactId>
    <version>1.0.0</version>

    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>

</project>

b.服务提供者

在这里插入图片描述

StudentMapper.java

package com.utkvrjan.springboot.mapper;

import com.utkvrjan.springboot.model.Student;

public interface StudentMapper {
    int deleteByPrimaryKey(Integer id);

    int insert(Student record);

    int insertSelective(Student record);

    Student selectByPrimaryKey(Integer id);

    int updateByPrimaryKeySelective(Student record);

    int updateByPrimaryKey(Student record);

    Integer selectAllStudentCount();
}

StudentMapper.xml

<?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.utkvrjan.springboot.mapper.StudentMapper">
  <resultMap id="BaseResultMap" type="com.utkvrjan.springboot.model.Student">
    <id column="id" jdbcType="INTEGER" property="id" />
    <result column="name" jdbcType="VARCHAR" property="name" />
    <result column="age" jdbcType="INTEGER" property="age" />
  </resultMap>
  <sql id="Base_Column_List">
    id, name, age
  </sql>
  <select id="selectByPrimaryKey" parameterType="java.lang.Integer" resultMap="BaseResultMap">
    select 
    <include refid="Base_Column_List" />
    from t_student
    where id = #{id,jdbcType=INTEGER}
  </select>
  <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer">
    delete from t_student
    where id = #{id,jdbcType=INTEGER}
  </delete>
  <insert id="insert" parameterType="com.utkvrjan.springboot.model.Student">
    insert into t_student (id, name, age
      )
    values (#{id,jdbcType=INTEGER}, #{name,jdbcType=VARCHAR}, #{age,jdbcType=INTEGER}
      )
  </insert>
  <insert id="insertSelective" parameterType="com.utkvrjan.springboot.model.Student">
    insert into t_student
    <trim prefix="(" suffix=")" suffixOverrides=",">
      <if test="id != null">
        id,
      </if>
      <if test="name != null">
        name,
      </if>
      <if test="age != null">
        age,
      </if>
    </trim>
    <trim prefix="values (" suffix=")" suffixOverrides=",">
      <if test="id != null">
        #{id,jdbcType=INTEGER},
      </if>
      <if test="name != null">
        #{name,jdbcType=VARCHAR},
      </if>
      <if test="age != null">
        #{age,jdbcType=INTEGER},
      </if>
    </trim>
  </insert>
  <update id="updateByPrimaryKeySelective" parameterType="com.utkvrjan.springboot.model.Student">
    update t_student
    <set>
      <if test="name != null">
        name = #{name,jdbcType=VARCHAR},
      </if>
      <if test="age != null">
        age = #{age,jdbcType=INTEGER},
      </if>
    </set>
    where id = #{id,jdbcType=INTEGER}
  </update>
  <update id="updateByPrimaryKey" parameterType="com.utkvrjan.springboot.model.Student">
    update t_student
    set name = #{name,jdbcType=VARCHAR},
      age = #{age,jdbcType=INTEGER}
    where id = #{id,jdbcType=INTEGER}
  </update>

  <!--获取学生总人数-->
  <select id="selectAllStudentCount" resultType="java.lang.Integer">
    select count(*) from t_student
  </select>
</mapper>

StudentServiceImpl

package com.utkvrjan.springboot.service;

import com.alibaba.dubbo.config.annotation.Service;
import com.utkvrjan.springboot.mapper.StudentMapper;
import com.utkvrjan.springboot.model.Student;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Component;

import java.util.concurrent.TimeUnit;


@Component
@Service(interfaceName = "com.utkvrjan.springboot.service.StudentService",version="1.0.0",timeout = 15000)  //用dubbo的service
public class StudentServiceImpl implements StudentService {

    @Autowired
    private StudentMapper studentMapper;
    @Autowired
    private RedisTemplate<Object,Object> redisTemplate;

    @Override
    public Student queryStudentById(Integer id) {


        return studentMapper.selectByPrimaryKey(id);
    }

    @Override
    public Integer queryAllStudentCount() {
        //提升系统性能，用户体验提升
        //首先从redis缓存中查询，如果有：直接使用，如果没有：去数据库查询并存放到redis缓存中
        Integer allStudentCount=(Integer)redisTemplate.opsForValue().get("allStudentCount");
        if(null==allStudentCount){
            //去数据库查询
            allStudentCount=studentMapper.selectAllStudentCount();
            //并存放到redis缓存中
            //redis如果你不去设置有效期的话，它是永久不失效，所以后两个参数就是设置有效期,设置成了15秒
            redisTemplate.opsForValue().set("allStudentCount",allStudentCount,15, TimeUnit.MINUTES);

        }
        return allStudentCount;


    }
}

Application

package com.utkvrjan.springboot;


import com.alibaba.dubbo.spring.boot.annotation.EnableDubboConfiguration;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
@MapperScan(basePackages = "com.utkvrjan.springboot.mapper")
@EnableDubboConfiguration //开启dubbo配置
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }

}

application.properties

# 设置内嵌Tomcat
server.port=8081
server.servlet.context-path=/


#设置连接数据库信息
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.username=root
spring.datasource.url=jdbc:mysql://localhost:3306/mydb1?useUnicode=true&characterEncoding=UTF-8&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=GMT%2B8
spring.datasource.password=1234



#设置dubbo设置
spring.application.name=025-springboot-dubbo-ssm-provider
#声明当前工程为服务提供者(在idea中，此文件下编写dubbo相关内容就是没有自动提示，不要因为这个担心自己是不是写错)
spring.dubbo.server=true
#设置注册中心
spring.dubbo.registry=zookeeper://localhost:2181



# 设置redis配置
spring.redis.host=localhost
spring.redis.port=6379
# spring.redis.password=1234 没有设置密码就不用写

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.4.3</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.utkvrjan.springboot</groupId>
    <artifactId>025-springboot-dubbo-ssm-provider</artifactId>
    <version>1.0.0</version>
    <name>025-springboot-dubbo-ssm-provider</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <!--接口工程-->
        <dependency>
            <groupId>com.utkvrjan.springboot</groupId>
            <artifactId>024-springboot-dubbo-ssm-interface</artifactId>
            <version>1.0.0</version>
        </dependency>
        <!--dubbo依赖-->
        <dependency>
            <groupId>com.alibaba.spring.boot</groupId>
            <artifactId>dubbo-spring-boot-starter</artifactId>
            <version>2.0.0</version>
        </dependency>
        <!--注册中心-->
        <dependency>
            <groupId>com.101tec</groupId>
            <artifactId>zkclient</artifactId>
            <version>0.10</version>
        </dependency>
        <!--MyBatis集成springboot起步依赖-->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.1.4</version>
        </dependency>
        <!--mysql驱动-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <!--springboot集成REdis起步依赖-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>
    </dependencies>

    <build>
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.xml</include>
                </includes>
            </resource>
        </resources>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

GeneratorMapper.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
        PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
        "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
<generatorConfiguration>
    <!-- 指定连接数据库的 JDBC 驱动包所在位置，指定到你本机的完整路径 -->
    <classPathEntry location="F:\mysql-connector-java-5.1.32.jar"/>
    <!-- 配置 table 表信息内容体，targetRuntime 指定采用 MyBatis3 的版本 -->
    <context id="tables" targetRuntime="MyBatis3">
        <!-- 抑制生成注释，由于生成的注释都是英文的，可以不让它生成 -->
        <commentGenerator>
            <property name="suppressAllComments" value="true"/>
        </commentGenerator>
        <!-- 配置数据库连接信息 -->
        <jdbcConnection driverClass="com.mysql.jdbc.Driver"
                        connectionURL="jdbc:mysql://localhost:3306/mydb1"
                        userId="root"
                        password="1234">
        </jdbcConnection>
        <!-- 生成 model 类，targetPackage 指定 model 类的包名， targetProject 指定
       生成的 model 放在 eclipse 的哪个工程下面-->
        <javaModelGenerator targetPackage="com.utkvrjan.springboot.model"
                            targetProject="E:\IdeaProjects\springbootProject\024-springboot-dubbo-ssm-interface\src\main\java">
            <property name="enableSubPackages" value="false"/>
            <property name="trimStrings" value="false"/>
        </javaModelGenerator>
        <!-- 生成 MyBatis 的 Mapper.xml 文件，targetPackage 指定 mapper.xml 文件的
       包名， targetProject 指定生成的 mapper.xml 放在 eclipse 的哪个工程下面 -->
        <sqlMapGenerator targetPackage="com.utkvrjan.springboot.mapper"
                         targetProject="src/main/java">
            <property name="enableSubPackages" value="false"/>
        </sqlMapGenerator>
        <!-- 生成 MyBatis 的 Mapper 接口类文件,targetPackage 指定 Mapper 接口类的包
       名， targetProject 指定生成的 Mapper 接口放在 eclipse 的哪个工程下面 -->
        <javaClientGenerator type="XMLMAPPER"
                             targetPackage="com.utkvrjan.springboot.mapper" targetProject="src/main/java">
            <property name="enableSubPackages" value="false"/>
        </javaClientGenerator>
        <!-- 数据库表名及对应的 Java 模型类名 -->
        <table tableName="t_student" domainObjectName="Student"
               enableCountByExample="false"
               enableUpdateByExample="false"
               enableDeleteByExample="false"
               enableSelectByExample="false"
               selectByExampleQueryId="false"/>
    </context>
</generatorConfiguration>

c.服务消费者

在这里插入图片描述

StudentController

package com.utkvrjan.springboot.web;

import com.alibaba.dubbo.config.annotation.Reference;
import com.utkvrjan.springboot.model.Student;
import com.utkvrjan.springboot.service.StudentService;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
public class StudentController {
    //check=false当服务消费者开启时不去检查提供者是否开启，只会在调用服务时再去检查
    @Reference(interfaceName = "com.utkvrjan.springboot.service.StudentService",version="1.0.0",check = false)
    private StudentService studentService;


    @RequestMapping("/student/detail/{id}")
    public String studentDetail(Model model, @PathVariable("id") Integer id){
        Student student=studentService.queryStudentById(id);

        model.addAttribute("student",student);
        return "studentDetail";
    }


    @GetMapping(value="/student/all/count")
    public @ResponseBody Object allStudentCount(){
        Integer allStudentCount=studentService.queryAllStudentCount();
        return "学生总人数为："+allStudentCount;
    }
}

Application

package com.utkvrjan.springboot;

import com.alibaba.dubbo.spring.boot.annotation.EnableDubboConfiguration;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
@EnableDubboConfiguration
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }

}

application.properties

# 设置内嵌Tomcat
server.port=8080
server.servlet.context-path=/


#设置dubbo设置
spring.application.name=026-springboot-dubbo-ssm-consumer
#设置注册中心
spring.dubbo.registry=zookeeper://localhost:2181


# 配置视图解析器
spring.mvc.view.prefix=/
spring.mvc.view.suffix=.jsp

studentDetail.jsp

<%--
  Created by IntelliJ IDEA.
  User: 30207
  Date: 2021/3/15
  Time: 23:24
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>学生详情</title>
</head>
<body>
<h3>学生编号：${student.id}</h3>
<h3>学生姓名：${student.name}</h3>
<h3>学生年龄：${student.age}</h3>
</body>
</html>

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.4.3</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.utkvrjan.springboot</groupId>
    <artifactId>026-springboot-dubbo-ssm-consumer</artifactId>
    <version>1.0.0</version>

    <properties>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <!--dubbo集成springboot起步依赖-->
        <dependency>
            <groupId>com.alibaba.spring.boot</groupId>
            <artifactId>dubbo-spring-boot-starter</artifactId>
            <version>2.0.0</version>
        </dependency>
        <!--注册中心-->
        <dependency>
            <groupId>com.101tec</groupId>
            <artifactId>zkclient</artifactId>
            <version>0.10</version>
        </dependency>
        <!--接口工程-->
        <dependency>
            <groupId>com.utkvrjan.springboot</groupId>
            <artifactId>024-springboot-dubbo-ssm-interface</artifactId>
            <version>1.0.0</version>
        </dependency>
        <!--Springboot集成JSP，仅仅只是展示JSP页面需要添加解析jsp页面的依赖-->
        <dependency>
            <groupId>org.apache.tomcat.embed</groupId>
            <artifactId>tomcat-embed-jasper</artifactId>
        </dependency>

    </dependencies>

    <build>
        <!--虽然加了依赖，但是它要求JSP必须指定编译到特定的位置-->
        <resources>
            <resource>
                <directory>src/main/webapp</directory>
                <targetPath>META-INF/resources</targetPath>
                <includes>
                    <include>*.*</include>
                </includes>
            </resource>
        </resources>

        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

标签：Dubbo,springboot,SpringMVC,spring,boot,import,com,id,SpringBoot
来源： https://blog.csdn.net/weixin_44197120/article/details/114876593

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