030_SpringCloud项目基础搭建:服务提供者和服务消费者


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
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SpringCloud版本参考文档

官网:https://spring.io/projects/spring-cloud#learn
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创建父工程

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删除src目录

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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

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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

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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';

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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());

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实体类子模块 springcloud-api

编写实体类

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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

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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

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<?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

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创建服务消费者子模块 springcloud-consumer-dept-80

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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

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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)

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posted @   清风(学习-踏实)  阅读(85)  评论(0编辑  收藏  举报
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