chumendajiangyou opened a new issue, #4628:
URL: https://github.com/apache/servicecomb-java-chassis/issues/4628
ServiceComb版本：3.2.1
gateWay：edge
服务提供者：
启动模式为WebApplicationType.NONE。
现在发现的问题是:当我直接调用提供者服务时没有问题，
如果先调用消费者服务，消费者服务再调用提供者的时候会出现不支持参数org.apache.servicecomb.swagger.invocation.converter.PartToMultipartFile.
示例
服务接口为：
```
@RequestMapping(value = "/saveFile",method = RequestMethod.POST,consumes =
MediaType.MULTIPART_FORM_DATA_VALUE)
String saveFile(@RequestPart("fileType") int fileType,
@RequestPart("file") MultipartFile file)throws
IOException;
```
消费者配置类为：
```
@Configuration
public class FileEndpointClient {
@Bean
public IFileEndpoint fileEndpoint() {
return Invoker.createProxy("files", "files", IFileEndpoint.class);
}
}
```
消费者实现为：
```
@Autowired
private IFileEndpoint fileEndpoint;
方法中直接调用和使用RestOperations调用均无法抛异常。
直接调用：
fileEndpoint.saveFile(fileType, file);
RestOperations调用：
RestOperations restOperation = RestTemplateBuilder.create();
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.MULTIPART_FORM_DATA);
HttpEntity<Map<String, Object>> entity = new HttpEntity<>(upLoadMap,
headers);
String reseult = restOperation.postForObject(url,entity, String.class);
```
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