Feign远程调用，MultipartFile file类型文件Feign远程接收出现“Current request is not a multipart request“问题

Feign远程调用

一、Feign远程调用：

个人理解

服务A调用服务B, 服务A引入服务B的依赖，然后调用服务B FeignClient中的方法，该方法就会根据设置好的地址寻找FeignController中的对应接口，在该接口里面调用service,就可以实现一个Feign调用了

服务A

FeignResult feignResult = licenseCheckFeign.checkImportUser(orgId,source);

服务B

FeignClient

@FeignClient(value = "dqsf-share-datasync", url = "${dqsf.application.dqsf-share-datasync.url:http://127.0.0.1:10004}", contextId = "LicenseCheckFeign",configuration = FeignConfiguration.class, fallback = LicenseCheckHystrix.class)
public interface LicenseCheckFeign {

 @PostMapping(value = "/license/check/checkImportUser",consumes = MULTIPART_FORM_DATA_VALUE)
FeignResult<Boolean> checkImportUser(@RequestParam("orgId") String orgId, @RequestPart(name = "file") MultipartFile source);
}

熔断实现

@Slf4j
@Component
public class LicenseCheckHystrix implements LicenseCheckFeign {
//FeignResult
  @Override
  public FeignResult  checkImportUser(String orgId,MultipartFile source) {
     log.error("LicenseCheckHystrix checkImportUser # orgId:{}",orgId);
     throw new RestException("feign请求验证增加人员后是否达到通讯录限制失败");
  }
}

FeignController

@PostMapping("/license/check/checkImportUser")
public Boolean checkImportUser(@RequestParam("orgId") String orgId, @RequestPart("file") MultipartFile source) throws Exception {
   //超出限制返回1
   try {
        userInfoService.checkImportUser(orgId,source);
        return true;
   } catch (Exception e) {
       throw e;
   }
}

service

//导入人员限额校验
void checkImportUser(String orgId, MultipartFile source) throws Exception;

serviceImpl

@Override
public void checkImportUser(String orgId, MultipartFile source) throws Exception{
   //获取当前租户下的总人数
   Integer userNum = Math.toIntExact(this.getUserCount(orgId));
   //获取license限额数量
   Integer userMaxNum = LicenseApi.getUserMax();
   //老用户直接放行
   if(null == userMaxNum) {
       log.info("老用户，没有license限额");
   }
   int lineLength = 0;
   // 声明workbook对象
   Workbook workbook = null;
   try {
       workbook = (Workbook) WorkbookFactory.create(source.getInputStream());
       Sheet sheet = workbook.getSheetAt(0);
       lineLength = sheet.getPhysicalNumberOfRows();
   } catch (IOException e) {
       log.info("read fileLength failed.");
   } finally {
       try {
           if (workbook != null) {
               // workbook不为null则close
               workbook.close();
           }
       } catch (Exception e) {
           log.info("close workbook is failed.");
       }
   }
   if (lineLength - 2 + userNum > userMaxNum) {
       throw new RestException("抱歉，您的版本数据余额已用完，无法创建");
   }
}

二、MultipartFile file类型文件Feign远程接收出现"Current request is not a multipart request"问题

参照格式

@PostMapping(value = “/dsf/file/putFile”, consumes = MULTIPART_FORM_DATA_VALUE)
Map<String, Object> putFile(@RequestHeader(name = “X-Auth0-Token”) String token, @RequestPart(“file”) MultipartFile file, @RequestParam(value = “transfer”) Integer transfer);

注意

consumes = MULTIPART_FORM_DATA_VALUE

注意FeignControoller使用@RequestPart注解接收