030_SpringCloud项目基础搭建:服务提供者和服务消费者
目录
SpringCloud版本选择
参考文档:https://www.cnblogs.com/xiaomaomao/p/14318249.html
SpringCoud 与之适配的 SpringBoot 版本
官网:https://spring.io/projects/spring-cloud#overview
SpringCloud版本参考文档
官网:https://spring.io/projects/spring-cloud#learn
创建父工程
删除src目录
添加依赖 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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.qing</groupId>
<artifactId>springcloud</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>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
<junit.version>4.12</junit.version>
<lombok.version>1.16.10</lombok.version>
<log4j.version>1.2.17</log4j.version>
<logbak.version>1.2.3</logbak.version>
</properties>
<dependencyManagement>
<dependencies>
<!-- springcloud -->
<!-- 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>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.2</version>
</dependency>
<!-- junit -->
<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>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
<version>${logbak.version}</version>
</dependency>
</dependencies>
</dependencyManagement>
<build>
</build>
</project>
创建实体类子模块 springcloud-api
子模块 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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>springcloud</artifactId>
<groupId>com.qing</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>springcloud-api</artifactId>
<properties>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
</properties>
<!--当前module需要的依赖,如果父依赖中已经配置了版本,这里就不用写了,指向父依赖-->
<dependencies>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
</dependencies>
</project>
创建数据库
创建表
CREATE TABLE `dept` (
`deptno` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '部门主键',
`dname` varchar(100) DEFAULT NULL COMMENT '部门名称',
`db_source` varchar(100) DEFAULT NULL COMMENT '数据库名称',
PRIMARY KEY (`deptno`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8mb4 COMMENT='部门表';
插入数据
insert into db01.dept(dname, db_source) values ('开发部',database());
insert into db01.dept(dname, db_source) values ('人事部',database());
insert into db01.dept(dname, db_source) values ('财务部',database());
insert into db01.dept(dname, db_source) values ('市场部',database());
insert into db01.dept(dname, db_source) values ('运维部',database());
实体类子模块 springcloud-api
编写实体类
package com.qing.springcloud.pojo;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.experimental.Accessors;
import java.io.Serializable;
@Data
@NoArgsConstructor
@Accessors(chain = true) // 链式写法
public class Dept implements Serializable {
private Long deptno; // 部门主键
private String dname; // 部门名称
// 微服务,一个服务可能对应一个数据库,同一个信息可能存储在不同的数据库中
private String db_source; // 数据库名称
public Dept(String dname) {
this.dname = dname;
}
}
创建服务提供者子模块 springcloud-provider-dept-8001
子模块 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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>springcloud</artifactId>
<groupId>com.qing</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>springcloud-provider-dept-8001</artifactId>
<properties>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
</properties>
<dependencies>
<!--springcloud-api模块,实体类-->
<dependency>
<groupId>com.qing</groupId>
<artifactId>springcloud-api</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-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>
子模块mybatis配置文件 mybatis-config.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>
<!--开启二级缓存-->
<setting name="cacheEnabled" value="true"/>
</settings>
</configuration>
子模块配置文件 application.yml
server:
port: 8001
mybatis:
type-aliases-package: com.qing.springcloud.pojo
config-location: classpath:mybatis/mybatis-config.xml
mapper-locations: classpath:mybatis/mapper/*.xml
# 开启驼峰
# configuration:
# map-underscore-to-camel-case: true
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?useUnicode=true&characterEncoding=utf-8&useSSL=false
username: root
password: 123456
编写服务接口和业务实现
package com.qing.springcloud.mapper;
import com.qing.springcloud.pojo.Dept;
import org.apache.ibatis.annotations.Mapper;
import org.springframework.stereotype.Repository;
import java.util.List;
@Mapper
@Repository
public interface DeptMapper {
public boolean add(Dept dept);
public Dept queryById(Long id);
public List<Dept> queryAll();
}
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.qing.springcloud.mapper.DeptMapper">
<insert id="add" parameterType="com.qing.springcloud.pojo.Dept">
insert into dept (dname, db_source)
values (#{dname}, database())
</insert>
<select id="queryById" parameterType="Long" resultType="com.qing.springcloud.pojo.Dept">
select * from dept where deptno = #{id}
</select>
<select id="queryAll" resultType="com.qing.springcloud.pojo.Dept">
select * from dept
</select>
</mapper>
package com.qing.springcloud.service;
import com.qing.springcloud.pojo.Dept;
import java.util.List;
public interface DeptService {
public boolean add(Dept dept);
public Dept queryById(Long id);
public List<Dept> queryAll();
}
package com.qing.springcloud.service.impl;
import com.qing.springcloud.mapper.DeptMapper;
import com.qing.springcloud.pojo.Dept;
import com.qing.springcloud.service.DeptService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
@Service
public class DeptServiceImpl implements DeptService {
@Autowired
private DeptMapper deptMapper;
@Override
public boolean add(Dept dept) {
return deptMapper.add(dept);
}
@Override
public Dept queryById(Long id) {
return deptMapper.queryById(id);
}
@Override
public List<Dept> queryAll() {
return deptMapper.queryAll();
}
}
package com.qing.springcloud.controller;
import com.qing.springcloud.pojo.Dept;
import com.qing.springcloud.service.DeptService;
import org.springframework.beans.factory.annotation.Autowired;
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 java.util.List;
/**
* 提供服务
*/
@RestController
public class DeptController {
@Autowired
private DeptService deptService;
@PostMapping("/dept/add")
public boolean add(Dept dept) {
return deptService.add(dept);
}
@GetMapping("/dept/get/{id}")
public Dept get(@PathVariable("id") Long id) {
return deptService.queryById(id);
}
@GetMapping("/dept/listAll")
public List<Dept> listAll() {
return deptService.queryAll();
}
}
编写服务启动类
package com.qing.springcloud;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
/**
* 启动类
*/
@SpringBootApplication
public class DeptProvider_8001 {
public static void main(String[] args) {
SpringApplication.run(DeptProvider_8001.class, args);
}
}
启动测试
创建服务消费者子模块 springcloud-consumer-dept-80
子模块 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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>springcloud</artifactId>
<groupId>com.qing</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>springcloud-consumer-dept-80</artifactId>
<properties>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
</properties>
<dependencies>
<!--springcloud-api模块,实体类-->
<dependency>
<groupId>com.qing</groupId>
<artifactId>springcloud-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>
子模块配置文件 application.yml
server:
port: 80
编写服务消费
package com.qing.springcloud.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.client.RestTemplate;
@Configuration
public class ConfigBean {
/**
* 注册RestTemplate对象到Spring容器
* @return
*/
@Bean
public RestTemplate getRestTemplate() {
return new RestTemplate();
}
}
package com.qing.springcloud.controller;
import com.qing.springcloud.pojo.Dept;
import org.springframework.beans.factory.annotation.Autowired;
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 org.springframework.web.client.RestTemplate;
import java.util.List;
@RestController
public class DeptConsumerController {
@Autowired
private RestTemplate restTemplate; // 提供多种便捷访问远程http服务的方法,简单的restful服务模板
private static final String REST_URL_PREFIX = "http://localhost:8001";
@PostMapping("/consumer/dept/add")
public boolean add(Dept dept) {
// url 请求参数 返回值类型
return restTemplate.postForObject(REST_URL_PREFIX + "/dept/add", dept, Boolean.class);
}
@GetMapping("/consumer/dept/get/{id}")
public Dept get(@PathVariable("id") Long id) {
// url 请求参数(可以不传) 返回值类型
return restTemplate.getForObject(REST_URL_PREFIX + "/dept/get/" + id, Dept.class);
}
@GetMapping("/consumer/dept/listAll")
public List<Dept> listAll() {
// url 请求参数(可以不传) 返回值类型
return restTemplate.getForObject(REST_URL_PREFIX + "/dept/listAll", List.class);
}
}
编写服务启动类
package com.qing.springcloud;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class DeptConsumer_80 {
public static void main(String[] args) {
SpringApplication.run(DeptConsumer_80.class, args);
}
}
启动测试(把服务提供者也启动)
分类:
170_SpringCloud
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