Eclipse构建Maven分包分模块项目并构建服务端

痛定思痛。 2023-10-01 09:36 36阅读 0赞

##### 首先说一下Maven 模块结构： #####

##### 环境 #####

JDK 1.8/Eclipse/Spring Boot 1.5.9.RELEASE/Spring Cloud Dalston.SR1

##### 构建Maven 父项目 #####

打开Eclipse，新建Maven 项目 springcloudDemo  
![父项目][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM0MTYwNjc5_size_16_color_FFFFFF_t_70]  
注意：

*  由于笔记是学习完写的，所以在截图的时候完全按照自己搭建的项目名来写，出现项目名重复，所以这里直接马赛克。正常不会出现这种问题。
 *  请选择 `pom`

打开父项目：观察结构  
![父项目结构][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM0MTYwNjc5_size_16_color_FFFFFF_t_70 1]  
添加pom 依赖：

<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.mike.demo</groupId>
      <artifactId>springcloudDemo</artifactId>
      <version>0.0.1-SNAPSHOT</version>
      <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>1.16.18</lombok.version>
      </properties>
     
      <dependencyManagement>
       <dependencies>
         <dependency>
           <groupId>org.springframework.cloud</groupId>
           <artifactId>spring-cloud-dependencies</artifactId>
           <version>Dalston.SR1</version>
           <type>pom</type>
           <scope>import</scope>
         </dependency>
         <dependency>
           <groupId>org.springframework.boot</groupId>
           <artifactId>spring-boot-dependencies</artifactId>
           <version>1.5.9.RELEASE</version>
           <type>pom</type>
           <scope>import</scope>
         </dependency>
         <dependency>
           <groupId>mysql</groupId>
           <artifactId>mysql-connector-java</artifactId>
           <version>5.0.4</version>
         </dependency>
         <dependency>
           <groupId>com.alibaba</groupId>
           <artifactId>druid</artifactId>
           <version>1.0.31</version>
         </dependency>
         <dependency>
           <groupId>org.mybatis.spring.boot</groupId>
           <artifactId>mybatis-spring-boot-starter</artifactId>
           <version>1.3.0</version>
         </dependency>
         <dependency>
           <groupId>ch.qos.logback</groupId>
           <artifactId>logback-core</artifactId>
           <version>1.2.3</version>
         </dependency>
         <dependency>
           <groupId>junit</groupId>
           <artifactId>junit</artifactId>
           <version>${junit.version}</version>
           <scope>test</scope>
         </dependency>
         <dependency>
           <groupId>log4j</groupId>
           <artifactId>log4j</artifactId>
           <version>${log4j.version}</version>
         </dependency>
       </dependencies>
      </dependencyManagement>
    </project>

##### 基础模快共有三个 #####

*  springcloudDemo-api 封装的整体entity/接口/公共配置等
 *  springcloudDemo-provider-dept-8001 微服务落地的服务提供者
 *  springcloudDemo-consumer-dept-80 微服务调用的客户端使用  
    下面分别就上面上个模块进行构建

##### pringcloudDemo-api 构建 #####

1.  鼠标右键点击 父项目 springcloudDemo,新建 Maven Mondule ,点击下一步  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM0MTYwNjc5_size_16_color_FFFFFF_t_70 2]
2.  输入模块名称：springcloudDemo-api  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM0MTYwNjc5_size_16_color_FFFFFF_t_70 3]
3.  选择Jar 包，点击Finish  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM0MTYwNjc5_size_16_color_FFFFFF_t_70 4]
4.  查看父项目此时的情况  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM0MTYwNjc5_size_16_color_FFFFFF_t_70 5]
5.  pom 依赖

1.  新建 Model Dept  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM0MTYwNjc5_size_16_color_FFFFFF_t_70 6]

package com.mike.demo.entities;
    
    import java.io.Serializable;
    
    import lombok.Data;
    import lombok.NoArgsConstructor;
    import lombok.experimental.Accessors;
    
    @SuppressWarnings("serial")
    @NoArgsConstructor
    @Data
    @Accessors(chain=true)
    public class Dept implements Serializable //必须序列化
    {
        
      private Long  deptno;   //主键
      private String  dname;   //部门名称
      private String  db_source;//来自那个数据库，因为微服务架构可以一个服务对应一个数据库，同一个信息被存储到不同数据库
      
      public Dept(String dname)
      {
        
       super();
       this.dname = dname;
      }
      public Dept(Long deptno, String dname, String db_source) {
        
    	super();
    	this.deptno = deptno;
    	this.dname = dname;
    	this.db_source = db_source;
      }
    	public Long getDeptno() {
        
    		return deptno;
    	}
    	public void setDeptno(Long deptno) {
        
    		this.deptno = deptno;
    	}
    	public String getDname() {
        
    		return dname;
    	}
    	public void setDname(String dname) {
        
    		this.dname = dname;
    	}
    	public String getDb_source() {
        
    		return db_source;
    	}
    	public void setDb_source(String db_source) {
        
    		this.db_source = db_source;
    	}
    }

注意： 可能大家认为 使用了 lombok 为什么还需要写setter/getter 方法，但是在之后的组件整合的过程中，返回Dept Json 数据的时候无法正确返回所以加上了。  
8. 点击pom 文件 run ： maven clean  
9. clean 之后，maven install 将 api 打成jar包供之后的模块使用。  
注意： 在打包的过程中，可能出现 `Perhaps you are running on a JRE rather than a JDK?` 解决办法可以去搜一搜。

##### springcloudDemo-provider-dept-8001 #####

如同上面新建 `springcloudDemo-api` 的步骤一样，新建项目。  
建成后，父项目拥有：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM0MTYwNjc5_size_16_color_FFFFFF_t_70 7]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM0MTYwNjc5_size_16_color_FFFFFF_t_70 8]  
下面看一下 springcloudDemo-api 项目结构：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM0MTYwNjc5_size_16_color_FFFFFF_t_70 9]

1.  pom 文件

<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>
     
      <parent>
        <groupId>com.mike.demo</groupId>
        <artifactId>springcloudDemo</artifactId>
        <version>0.0.1-SNAPSHOT</version>
      </parent>
      <artifactId>springcloudDemo-provider-dept-8001</artifactId>
     
      <dependencies>
       <dependency>
         <groupId>com.mike.demo</groupId>
         <artifactId>springcloudDemo-api</artifactId>
         <version>${project.version}</version>
       </dependency>
       <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>
       <dependency>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-jetty</artifactId>
       </dependency>
       <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>
       </dependency>
       
       <dependency>
         <groupId>org.springframework</groupId>
         <artifactId>springloaded</artifactId>
       </dependency>
       <dependency>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-devtools</artifactId>
       </dependency>
      </dependencies>
     
    </project>

1.  新建application.yml 文件

server:
      port: 8001
      
    mybatis:
      config-location: classpath:mybatis/mybatis.cfg.xml        # mybatis配置文件所在路径
      type-aliases-package: com.mike.demo.entities    # 所有Entity别名类所在包
      mapper-locations:
      - classpath:mybatis/mapper/**/*.xml                       # mapper映射文件
        
    spring:
       application:
        name: springcloudDemo-dept 
       datasource:
        type: com.alibaba.druid.pool.DruidDataSource            # 当前数据源操作类型
        driver-class-name: org.gjt.mm.mysql.Driver              # mysql驱动包
        url: jdbc:mysql://xxxxxxxxx:3306/cloudDB01              # 数据库名称
        username: root
        password: root
        dbcp2:
          min-idle: 5                                           # 数据库连接池的最小维持连接数
          initial-size: 5                                       # 初始化连接数
          max-total: 5                                          # 最大连接数
          max-wait-millis: 200                                  # 等待连接获取的最大超时时间

1.  mybaties.cfg.xml

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

1.  DeptMapper.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.mike.demo.dao.DeptDao">
     
      <select id="findById" resultType="Dept" parameterType="Long">
       select deptno,dname,db_source from dept where deptno=#{deptno}; 
      </select>
      <select id="findAll" resultType="Dept">
       select deptno,dname,db_source from dept; 
      </select>
      <insert id="addDept" parameterType="Dept">
       INSERT INTO dept(dname,db_source) VALUES(#{dname},DATABASE());
      </insert>
      
    </mapper>

1.  DeptDao.java

package com.mike.demo.dao;
    
    import java.util.List;
    import org.apache.ibatis.annotations.Mapper;
    import com.mike.demo.entities.Dept;
    
    @Mapper
    public interface DeptDao
    {
        
      public boolean addDept(Dept dept);
     
      public Dept findById(Long id);
     
      public List<Dept> findAll();
    }

1.  DeptService.java

package com.mike.demo.service;
    
    import java.util.List;
    import com.mike.demo.entities.Dept;
    public interface DeptService {
        
    	public boolean add(Dept dept);
    	public Dept    get(Long id);
        public List<Dept> list();
    
    }

1.  DeptServiceImpl.java

package com.mike.demo.service.impl;
    
    import java.util.List;
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Service;
    
    import com.mike.demo.dao.DeptDao;
    import com.mike.demo.entities.Dept;
    import com.mike.demo.service.DeptService;
    
    @Service
    public class DeptServiceImpl implements DeptService
    {
        
      @Autowired
      private DeptDao dao ;
      
      @Override
      public boolean add(Dept dept)
      {
        
       return dao.addDept(dept);
      }
     
      @Override
      public Dept get(Long id)
      {
        
       return dao.findById(id);
      }
     
      @Override
      public List<Dept> list()
      {
        
       return dao.findAll();
      }
     
    }

1.  DeptController.java

package com.mike.demo.controller;
    
    import java.util.List;
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.web.bind.annotation.PathVariable;
    import org.springframework.web.bind.annotation.RequestBody;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestMethod;
    import org.springframework.web.bind.annotation.RestController;
    
    import com.mike.demo.entities.Dept;
    import com.mike.demo.service.DeptService;
    
    @RestController
    public class DeptController
    {
        
      @Autowired
      private DeptService service;
      
      @RequestMapping(value="/dept/add",method=RequestMethod.POST)
      public boolean add(@RequestBody Dept dept)
      {
        
       return service.add(dept);
      }
      
      @RequestMapping(value="/dept/get/{id}",method=RequestMethod.GET)
      public Dept get(@PathVariable("id") Long id)
      {
        
       return service.get(id);
      }
      
      @RequestMapping(value="/dept/list",method=RequestMethod.GET)
      public List<Dept> list()
      {
        
       return service.list();
      }
    }

1.  服务启动类 DeptProvider8001\_App

package com.mike.demo;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    
    /**
     * 服务的提供者
     * @author asus
     *
     */
    @SpringBootApplication
    public class DeptProvider8001_App
    {
        
      public static void main(String[] args)
      {
        
       SpringApplication.run(DeptProvider8001_App.class, args);
      }
    }

数据库文件, 根据上面application.yml 配置的数据库，到Mysql中建库建表

DROP DATABASE IF EXISTS cloudDB01;
    CREATE DATABASE cloudDB01 CHARACTER SET UTF8;
    USE cloudDB01;
    CREATE TABLE dept
    (
      deptno BIGINT NOT NULL PRIMARY KEY AUTO_INCREMENT,
      dname VARCHAR(60),
      db_source   VARCHAR(60)
    );
    INSERT INTO dept(dname,db_source) VALUES('开发部',DATABASE());
    INSERT INTO dept(dname,db_source) VALUES('人事部',DATABASE());
    INSERT INTO dept(dname,db_source) VALUES('财务部',DATABASE());
    INSERT INTO dept(dname,db_source) VALUES('市场部',DATABASE());
    INSERT INTO dept(dname,db_source) VALUES('运维部',DATABASE());
     
    SELECT * FROM dept;

##### 服务端测试 #####

启动启动类  
![在这里插入图片描述][20190703004322966.png]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM0MTYwNjc5_size_16_color_FFFFFF_t_70 10]  
这样我们的 Eclipse 分包构建项目就完成了，且完成了 SpringCloud 服务端的程序，由于篇幅有限，所以客户端的放在下一个篇中。

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[20190703004322966.png]: https://img-blog.csdnimg.cn/20190703004322966.png
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