feign client multipart feign调用服务上传图片 报错 the request was rejected because no multipart boundary was

学习spring cloud   ，些了一个图片上传的服务，直接用postman 请求这个服务，是没有问题的，
但是在web层（comsumer层？）用feign去调用这个服务，就报错了，，
the request was rejected because no multipart boundary was found，，，

原文地址： https://github.com/OpenFeign/feign-form
工程中需要依赖这两个东东

<dependencies>
...
<dependency>
<groupId>io.github.openfeign.form</groupId>
<artifactId>feign-form</artifactId>
<version>3.2.2</version>
</dependency>
<dependency>
<groupId>io.github.openfeign.form</groupId>
<artifactId>feign-form-spring</artifactId>
<version>3.2.2</version>
</dependency>
...
</dependencies>

@FeignClient(name = "file-upload-service", configuration = FileUploadServiceClient.MultipartSupportConfig.class)
public interface FileUploadServiceClient extends IFileUploadServiceClient {

public class MultipartSupportConfig {

@Autowired
private ObjectFactory<HttpMessageConverters> messageConverters;

@Bean
public Encoder feignFormEncoder() {
return new SpringFormEncoder(new SpringEncoder(messageConverters));
}
}
}

@FeignClient(name = "file-upload-service", configuration = FileUploadServiceClient.MultipartSupportConfig.class)
public interface FileUploadServiceClient extends IFileUploadServiceClient {

public class MultipartSupportConfig {

@Bean
public Encoder feignFormEncoder() {
return new SpringFormEncoder();
}
}
}