Precautions for using feign to make remote calls

In the use of feign There are some problems in the process , So here's a summary

1. Defined to make remote calls api The parameters in the method parameter list in the interface are must All have to be marked @RequestParam(“value”) annotation **, Otherwise, the call will report 405 abnormal , This is with controller Different in ,controller The method in can automatically bind parameters as long as the parameter name corresponds to the parameter key name passed in from the foreground
Complex types must be marked with @RequestBody annotation

2.service In microservices Controller Parameter binding of :
If there are complex types in the parameter list , Please use Post request , Use Get Request meeting report Bad Request error , And it needs to be marked @RequestBody annotation , The common basic type can not be marked with @RequestParam Annotation can automatically bind parameters

If there are other questions , You are also welcome to add , Put in the code :

api:

@FeignClient("MS-ADMIN-SERVICE")
public interface FixFeignService {

    @GetMapping("/fix")
    public List<FixInfo> findAll();

    @PostMapping("/fix/add")
    public int insert(@RequestBody FixInfo fixInfo);

    @PostMapping("/fix/limitByParam")
    public LayUIPageBean limitByParam(@RequestBody FixInfo fixInfo, @RequestParam("page") Integer page, @RequestParam("limit") Integer limit);

    @PostMapping("/fix/delByIds")
    public boolean delByIds(@RequestParam("ids[]") Long[] ids);

    @GetMapping("/fix/findById")
    public FixInfo findById(@RequestParam("id") Long id);

    @PostMapping("/fix/update")
    boolean update(@RequestBody FixInfo fixInfo);

}

service Microservices

    

@RestController
@RequestMapping("/fix")
@Slf4j
public class FixInfoController {

    @Autowired
    private FixInfoService fixInfoService;

    @GetMapping("")
    public List<FixInfo> findAll(){
        List<FixInfo> all = fixInfoService.findAll();
        return all;
    }

    @PostMapping("/add")
    public int insert(@RequestBody FixInfo fixInfo){
        return fixInfoService.insert(fixInfo);
    }

    @PostMapping("/limitByParam")
    public LayUIPageBean limitByParam(@RequestBody FixInfo fixInfo,Integer page,Integer limit){
        LayUIPageBean layUIPageBean = new LayUIPageBean();
        PageHelper.startPage(page,limit);
        List<FixInfo> all = fixInfoService.findByParam(fixInfo);
        PageInfo<FixInfo> pageInfo = new PageInfo<>(all);

        return layUIPageBean.setCount((int)pageInfo.getTotal()).setData(pageInfo.getList());
    }

    @PostMapping("/delByIds")
    public boolean delByIds(@RequestParam("ids[]") Long[] ids){
        //log.info("id"+ids[0]);
        boolean flag= fixInfoService.delByIds(ids);
        return flag;
    }

    @GetMapping("/findById")
    public FixInfo findById(Long id){
        return fixInfoService.findById(id);
    }

    @PostMapping("/update")
    public boolean update(@RequestBody FixInfo fixInfo){
       return fixInfoService.update(fixInfo);
    }


}