springcloud-provider-dept-8001 提供端并注册到eureka

提供端依赖pom.xml

<!--    加入eureka依赖-->
<!-- 我们需要拿到实体类-->
    <dependencies>
        <!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-eureka -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka</artifactId>
            <version>1.4.7.RELEASE</version>
        </dependency>
<!--完善监控信息eureka  actuator      -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.example</groupId>
            <artifactId>springcloudapi</artifactId>
            <version>1.0-SNAPSHOT</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>org.projectlombok</groupId>
            <artifactId>lombok</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-test</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-jetty</artifactId>
        </dependency>
<!--        热部署-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
        </dependency>
    </dependencies>

提供端配置文件application.yml

server:
  port: 8001
  #mybatis配置
mybatis:
  type-aliases-package: com.kuang.springcloud.api.pojo
  config-location:  classpath:mybatis/mybatis-config.xml
  mapper-locations: classpath:mybatis/mapper/*.xml
spring:
  application:
    name: springclound-dept
  datasource:
    url: jdbc:mysql://localhost:3306/db01?serverTimezone=Asia/Shanghai&useUnicode=true&characterEncoding=utf8&useSSL=false
    username: root
    password: 123456
    driver-class-name: com.mysql.cj.jdbc.Driver
#Eureka的配置服务注册到哪里
eureka:
  client:
    service-url:
      defaultZone: http://eureka7001.com:7001/eureka/,http://eureka7002.com:7002/eureka/,http://eureka7003.com:7003/eureka/
  instance:
    instance-id: springcloud-provider-dept8001 #修改eureka上的默认描述信息
#监控信息 info配置
info:
  app.name: iJun
  company.name: blog.wanke

mybatis配置文件

mybatisDao层DeptMybatis.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.kuang.springcloud.dao.DeptDao">
     <insert id="addDept" parameterType="Dept">
         insert into dept (dname, db_source)
         values (#{dname},DATABASE())
     </insert>
     <select id="queryById" resultType="Dept" parameterType="Long">
         select * from dept where deptno=#{deptno}
     </select>
    <select id="queryAll" resultType="Dept">
        select * from dept
    </select>
</mapper>

mybatis核心配置文件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>

dao层DeptDao

import com.kuang.springcloud.api.pojo.Dept;
import org.apache.ibatis.annotations.Mapper;
import org.springframework.stereotype.Repository;

import java.util.List;

@Mapper
@Repository
public interface DeptDao {
    public boolean addDept(Dept dept);
    public Dept queryById(Long id);
    public List<Dept> queryAll();
}

service层DeptService

import com.kuang.springcloud.api.pojo.Dept;

import java.util.List;

public interface DeptService {
    public boolean addDept(Dept dept);
    public Dept queryById(Long id);
    public List<Dept> queryAll();
}

serviceImpl层DeptServiceImpl

import com.kuang.springcloud.api.pojo.Dept;
import com.kuang.springcloud.dao.DeptDao;
import com.kuang.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 DeptDao deptDao;
    @Override
    public boolean addDept(Dept dept) {
        return deptDao.addDept(dept);
    }

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

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

controller层　DeptController

import com.kuang.springcloud.api.pojo.Dept;
import com.kuang.springcloud.service.DeptService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
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;

@RestController
public class DeptController {
  @Autowired
    private DeptService deptService;
  @PostMapping("/dept/add")
  public boolean addDept(Dept dept){
      return deptService.addDept(dept);
  }
    @GetMapping("/dept/get/{id}")
    public Dept getDept(@PathVariable("id") Long id){
        return deptService.queryById(id);
    }
    @GetMapping("/dept/list")
    public List<Dept> queryAll(){
        return deptService.queryAll();
    }
    //注册进来的微服务，获取一些消息
  @Autowired
  private DiscoveryClient client;//获取一些配置信息，得到具体的微服务
    @GetMapping("/dept/descovery")
    public Object descovery(){
      //获取微服务列表的清单
      List<String> services = client.getServices();
      System.out.println("discovery=>services"+services);
      //得到具体的微服务信息,通过具体的微服务id， applicationName;
      List<ServiceInstance> instances = client.getInstances("SPRINGCLOUND-DEPT");
      for (ServiceInstance instance : instances) {
        System.out.println(
                instance.getHost()+"\t"+
                        instance.getPort()+"\t"+
                        instance.getUri()+"\t"+
                        instance.getServiceId()
        );
      }
      return this.client;
    }
}

启动器DeptProvider_8001

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;

//启动类
@SpringBootApplication
@EnableEurekaClient   //cs架构  服务启动后会自动把客户端的东西自动注册到服务端这边来
@EnableDiscoveryClient  //服务发现~
public class DeptProvider_8001 {
    public static void main(String[] args) {
        SpringApplication.run(DeptProvider_8001.class,args);
    }
}