SpringCloud/远程服务调用消费者接收生产者数据为空

本文生产者消费者可以对调

一开始建了个消费者

消费者：

@RestController
@RequestMapping("/dept")
public class DeptController {
    @Autowired
    private DeptService deptService;

    @RequestMapping("/addDept")
    public boolean addDept(Dept dept){
        return deptService.addDept(dept);
    }

    @RequestMapping("/queryById/{id}")
    public Dept queryById(@PathVariable("id") Long id){
        return deptService.queryById(id);
    }

    @RequestMapping("/queryAll")
    public List<Dept> queryAll(){
        return deptService.queryAll();
    }

}

请求：

http://localhost:8001/dept/addDept?deptName="事业部"
http://localhost:8001/dept/queryById/1
http://localhost:8001/dept/queryAll

结果：

true
{"id":1,"deptName":"事业部",,"dbSource":"SpringCloud"}
{"id":1,"deptName":"事业部",,"dbSource":"SpringCloud"}

没问题

然后又建了个生产者

生产者：

@RestController
@RequestMapping("/dept")
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";
    private static final String DEPT="/dept";

    @RequestMapping("/add")
    public boolean add(Dept dept){
        return restTemplate.postForObject(REST_URL_PREFIX DEPT "/addDept",dept,Boolean.class);
    }

    @RequestMapping("/get/{id}")
    public Dept get(@PathVariable("id") Long id){
        return restTemplate.getForObject(REST_URL_PREFIX DEPT "/queryById/" id,Dept.class);
    }

    @RequestMapping("/list")
    public List<Dept> list(){
        return restTemplate.getForObject(REST_URL_PREFIX DEPT "/queryAll",List.class);
    }


}

消费者调用生产者
请求：

http://localhost:8002/dept/add?deptName="事业部2"
http://localhost:8002/dept/get/2
http://localhost:8002/dept/list

结果：

true
{"id":2,"deptName":null,"dbSource":"SpringCloud"}
[{"id":1,"deptName":"事业部",,"dbSource":"SpringCloud"},{"id":2,"deptName":null,"dbSource":"SpringCloud"}]

发现两边接口都能用，但是add方法传给生产者的值为空，也没有报错。

解决方法：

后来发现是生产者接收的问题，把代码改成：

    @RequestMapping("/addDept")
    public boolean addDept(@RequestBody Dept dept){//没有@RequestBody的话收到的值就会为空
        return deptService.addDept(dept);
    }

请求：

http://localhost:8002/dept/add?deptName="事业部2"
http://localhost:8002/dept/get/3
http://localhost:8002/dept/list

结果：

true
{"id":3,"deptName":"事业部2","dbSource":"SpringCloud"}
[{"id":1,"deptName":"事业部",,"dbSource":"SpringCloud"},{"id":2,"deptName":null,"dbSource":"SpringCloud"},
{"id":3,"deptName":"事业部2","dbSource":"SpringCloud"}]

问题解决！！！

这篇好文章是转载于：学新通技术网