idea2019.3创建Maven分模块项目

于 2019-12-30 14:12:32 发布
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分类专栏： idea2019创建Maven父子工程第一节 文章标签： spring boot
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本文链接：https://blog.youkuaiyun.com/adadfss/article/details/103765401
本文详细介绍如何使用Maven搭建父子工程，包括父工程、子工程的创建与配置，涉及Spring Cloud、Spring Boot、MyBatis等框架的整合，以及数据库连接、日志框架、测试工具的设置。

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创建Maven父子工程

1.创建父工程

2.修改pom文件，修改一下内容：

<?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.sxh</groupId>
    <artifactId>springcloud2019new</artifactId>
    <version>1.0-SNAPSHOT</version>
    <!--打包方式  pom-->
    <packaging>pom</packaging>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
        <junit.version>4.12</junit.version>
        <log4j.version>1.2.17</log4j.version>
        <lombok.version>1.16.10</lombok.version>
    </properties>

    <dependencyManagement>
        <dependencies>
            <!--springcloud的依赖-->
            <!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-dependencies -->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Greenwich.SR1</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <!--springboot-->
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>2.1.4.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <!--数据库-->
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>5.1.47</version>
            </dependency>
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid</artifactId>
                <version>1.1.10</version>
            </dependency>
            <!--springboot启动器-->
            <dependency>
                <groupId>org.mybatis.spring.boot</groupId>
                <artifactId>mybatis-spring-boot-starter</artifactId>
                <version>1.3.2</version>
            </dependency>



            <!--日志测试-->
            <!--junit-->
            <dependency>
                <groupId>ch.qos.logback</groupId>
                <artifactId>logback-core</artifactId>
                <version>1.2.3</version>
            </dependency>
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>${junit.version}</version>
            </dependency>
            <!--lombok-->
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <version>${lombok.version}</version>
            </dependency>
            <!--log4j-->
            <dependency>
                <groupId>log4j</groupId>
                <artifactId>log4j</artifactId>
                <version>${log4j.version}</version>
            </dependency>
        </dependencies>
    </dependencyManagement>

</project>

3.创建第一个子工程（springcloud-api）实体

3.1修改pom文件

<?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">
    <parent>
        <artifactId>springcloud2019new</artifactId>
        <groupId>com.sxh</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>springcloid-api</artifactId>
<!--当前的module自己需要的依赖，如果父依赖中已经配置了版本，这里就不用写-->
    <dependencies>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
    </dependencies>

</project>

3.2创建pojo类（com.sxh.sprgcloud.pojo.Dept）

package com.sxh.springcloud.pojo;

import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.experimental.Accessors;

import java.io.Serializable;

/**
 * @author 司小虎 E-mail:sxh100600@gmail.com
 * @version 创建时间：2019/12/30 10:50
 */
@NoArgsConstructor
@Data
@Accessors(chain = true)//链式写法
public class Dept implements Serializable { //实体类
    private long deptno;//主键
    private String dname;
    //这个数据库存在那个数据库的字段  微服务 一个服务对应一个数据库，同一个信息可能存在不同的数据库
    private String db_source;

    public Dept(String dname) {
        this.dname = dname;
    }

}

4.创建第二个子工程（springcloud-provider-dept-8001）提供者

4.1修改pom文件

<?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">
    <parent>
        <artifactId>springcloud2019new</artifactId>
        <groupId>com.sxh</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>springcloud-provider-dept-8001</artifactId>

    <dependencies>
        <!--我们需要拿到实体类，所以要配置pojo modul-->
        <dependency>
            <groupId>com.sxh</groupId>
            <artifactId>springcloid-api</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <!--junit-->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
        </dependency>
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-core</artifactId>
        </dependency>

        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
        </dependency>
        <!--test-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!--jetty-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jetty</artifactId>
        </dependency>
        <!--热部署-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
        </dependency>
    </dependencies>
</project>

4.2在resource下创建application.yml文件

server:
  port: 8001
  #mybatis的配置
mybatis:
  type-aliases-package: com.sxh.springcloud.pojo
  config-location: classpath:mybatis/mybatis-config.xml
  mapper-locations: classpath:mybatis/mapper/*.xml

#spring的配置
spring:
  application:
    name: springcloud-provider-dept
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    driver-class-name: org.gjt.mm.mysql.Driver
    url: jdbc:mysql://localhost:3306/db01?userUnicode=ture&characterEncoding=utf-8&useSSL=true
    username: sxh
    password: 100600

4.3在resource下创建mybatis.xml(创建一个mybatis包，在mybatis包下，或者不用写这个xml)

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
        PUBLIC "-/mybati.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration >
    <settings>
        <!--//开启缓存-->
        <setting name="cacheEnabled" value="true"/>
    </settings>
</configuration>

4.4创建DeptDao接口类（com.sxh.springcloud.dao下）

import java.util.List;

/**
 * @author 司小虎 E-mail:sxh100600@gmail.com
 * @version 创建时间：2019/12/30 11:32
 */
@Mapper
@Repository
public interface DeptDao {
    boolean addDept(Dept dept);
    Dept queryById(Long deptno);
    List<Dept> queryAll();
}

4.5创建DeptService接口类（com.sxh.springcloud.service下）

package com.sxh.springcloud.service;

import com.sxh.springcloud.pojo.Dept;

import java.util.List;

/**
 * @author 司小虎 E-mail:sxh100600@gmail.com
 * @version 创建时间：2019/12/30 12:38
 */
public interface DeptService {
    boolean addDept(Dept dept);
    Dept queryById(Long deptno);
    List<Dept> queryAll();
}

4.6创建DeptServiceImp接口类（com.sxh.springcloud.service.imp下）

package com.sxh.springcloud.service.imp;

import com.sxh.springcloud.dao.DeptDao;
import com.sxh.springcloud.pojo.Dept;
import com.sxh.springcloud.service.DeptService;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.List;

/**
 * @author 司小虎 E-mail:sxh100600@gmail.com
 * @version 创建时间：2019/12/30 12:38
 */
@Service
public class DeptServiceImp implements DeptService {
    @Resource
    private DeptDao deptDao;
    @Override
    public boolean addDept(Dept dept) {
        return deptDao.addDept(dept);
    }

    @Override
    public Dept queryById(Long deptno) {
        return deptDao.queryById(deptno);
    }

    @Override
    public List<Dept> queryAll() {
        return deptDao.queryAll();
    }
}

4.7在resource下创建mybatis.mapper.deptMapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
        PUBLIC "-/mybati.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.sxh.springcloud.dao.DeptDao">
    <insert id="addDept" parameterType="com.sxh.springcloud.pojo.Dept">
        insert into dept (dname,db_source)
        values (#{dname},DATABASE())
    </insert>

    <resultMap id="deptResultMap" type="com.sxh.springcloud.pojo.Dept">
        <id property="deptno" column="deptno"></id>
        <id property="dname" column="dname"></id>
        <id property="db_source" column="db_source"></id>
    </resultMap>
    <select id="queryById" parameterType="Long" resultMap="deptResultMap">
        select * from dept where deptno=#{deptno}
    </select>
    <select id="queryAll" resultMap="deptResultMap">
        select * from dept
    </select>
</mapper>

4.8创建com.sxh.springcloud.controller.DeptController类

package com.sxh.springcloud.controller;

import com.sxh.springcloud.pojo.Dept;
import com.sxh.springcloud.service.DeptService;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;
import java.util.List;

/**
 * @author 司小虎 E-mail:sxh100600@gmail.com
 * @version 创建时间：2019/12/30 12:40
 */
//提供RestFul服务
@RestController
public class DeptController {
        @Resource
        private DeptService deptService;

        @PostMapping("/dept/add")
        public boolean addDept(Dept dept){
            return deptService.addDept(dept);
        }

        @GetMapping("/dept/get/{deptno}")
        public Dept get(@PathVariable("deptno")Long deptno){
            return deptService.queryById(deptno);
        }

        @GetMapping("/dept/list")
        public List<Dept> qureyAll(){
            return deptService.queryAll();
        }


}

4.9创建主启动类DeptProvider_8001

package com.sxh.springcloud;

import org.apache.ibatis.annotations.Mapper;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;

/**
 * @author 司小虎 E-mail:sxh100600@gmail.com
 * @version 创建时间：2019/12/30 12:44
 */


@SpringBootApplication    //主启动类
public class DeptProvider_8001 {
    public static void main(String[] args) {
        SpringApplication.run(DeptProvider_8001.class,args);
    }

}

5.创建第三个子工程（springcloud-consumer-dept-80）消费者

5.1修改pom文件

<?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">
    <parent>
        <artifactId>springcloud2019new</artifactId>
        <groupId>com.sxh</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>springcloud-consumer-dept-80</artifactId>

    <!--实体类web-->
    <dependencies>
        <dependency>
            <groupId>com.sxh</groupId>
            <artifactId>springcloid-api</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!--热部署-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
        </dependency>
    </dependencies>

</project>

5.2创建yml文件

server:
  port: 80

5.3创建RestTemplate的配置类

package com.sxh.springcloud.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.client.RestTemplate;

/**
 * @author 司小虎 E-mail:sxh100600@gmail.com
 * @version 创建时间：2019/12/30 13:10
 */
@Configuration
public class ResTemplateConfig {


    @Bean
    public RestTemplate getrestTemplate(){
        return new RestTemplate();
    }

}

5.4创建com.sxh.springcloud.controller.DeptController控制类

package com.sxh.springcloud.controller;

import com.sxh.springcloud.pojo.Dept;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

import javax.annotation.Resource;
import java.util.List;

/**
 * @author 司小虎 E-mail:sxh100600@gmail.com
 * @version 创建时间：2019/12/30 13:04
 */
@RestController
public class DeptController {

    /*理解，消费者不应该有service层*/
    //RestTemplate  使用就要注册到spring中
    private static final String REST_URL_PREFIX="http://localhost:8001";
    @Resource
    private RestTemplate restTemplate;          //(URL,实体, Class<T> responseType)   //提供多种便捷访问远程http服务的方法，简单的restful服务模板

    @RequestMapping("/consumer/dept/get/{deptno}")
    public Dept get(@PathVariable("deptno") Long deptno){
        return restTemplate.getForObject(REST_URL_PREFIX+"/dept/get/"+deptno,Dept.class);
    }
    @RequestMapping("/consumer/dept/list")
    public List<Dept> list(){
        return restTemplate.getForObject(REST_URL_PREFIX+"/dept/list",List.class);
    }
    @RequestMapping("/consumer/dept/add")
    public boolean add(Dept dept){
        return restTemplate.postForObject(REST_URL_PREFIX+"/dept/add/",dept,Boolean.class);
    }






}

5.5创建主程序类

package com.sxh.springcloud;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

/**
 * @author 司小虎 E-mail:sxh100600@gmail.com
 * @version 创建时间：2019/12/30 13:22
 */
@SpringBootApplication
public class Dept_Consumer_80 {
    public static void main(String[] args) {
        SpringApplication.run(Dept_Consumer_80.class,args);
    }
}

至此，架构已完成，先测试能否成功，效果如下

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