SpringCloud连载(五):Feign轻松实现Rest接口调用(附视频)

1
2<dependency>
3    <groupId>org.springframework.cloudgroupId>
4    <artifactId>spring-cloud-starter-feignartifactId>
5dependency>
6


1
2<dependency>
3    <groupId>org.springframework.cloudgroupId>
4    <artifactId>spring-cloud-starter-feignartifactId>
5dependency>
6


1package com.xiaobaibi.webservice;
2
3import com.xiaobaibi.bean.Department;
4import org.springframework.cloud.netflix.feign.FeignClient;
5import org.springframework.web.bind.annotation.PathVariable;
6import org.springframework.web.bind.annotation.*;
7
8import java.util.List;
9
10// 开启Feign,并告诉服务我指向的是Eureka中的哪个微服务
11@FeignClient(value = "MSC-DEPARTMENT")
12public interface DeparmentWebService {
13
14    /**
15     * 新增部门
16     * @param department
17     * @return
18     */
19    @PostMapping(value = "/department/insert")
20    public boolean insertDept(Department department);
21    /**
22     * 根据 ID 查询
23     * @return
24     */
25    @GetMapping(value = "/department/get/{dId}")
26    public Department getDepartmentById(@PathVariable("dId") Long dId);
27
28    /**
29     * 全查
30     * @return
31     */
32    @GetMapping(value = "/department/list")
33    public List list();
34}


1package com.xiaobaibi.consumer;
2
3import org.springframework.boot.SpringApplication;
4import org.springframework.boot.autoconfigure.SpringBootApplication;
5import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
6import org.springframework.cloud.netflix.feign.EnableFeignClients;
7
8@SpringBootApplication
9@EnableEurekaClient
10// 对部门微服务加负载均衡自定义算法
11@EnableFeignClients(basePackages = {"com.xiaobaibi.webservice"})
12public class MscConsumerApplication_Feign {
13
14    public static void main(String[] args) {
15        SpringApplication.run(MscConsumerApplication_Feign.class,args);
16    }
17}


1@RestController
2@RequestMapping(value = "/consumer")
3public class DepartConsumerController {
4    /**
5     * Feign方式的 Service
6     */
7    @Autowired
8    private DeparmentWebService deparmentWebService;
9
10    /**
11     * 新增部门
12     * @param department
13     * @return
14     */
15    @RequestMapping(value = "/insert")
16    public boolean insertDept(Department department){
17        return deparmentWebService.insertDept(department);
18    }
19    /**
20     * 根据 ID 查询
21     * @return
22     */
23    @RequestMapping(value = "/get/{dId}")
24    public Department getDepartmentById(@PathVariable("dId") Long dId){
25        return deparmentWebService.getDepartmentById(dId);
26    }
27
28    /**
29     * 全查
30     * @return
31     */
32    @RequestMapping(value = "/list")
33    public List list(){
34        return deparmentWebService.list();
35    }
36}