xxffzq opened a new issue, #4267:
URL: https://github.com/apache/servicecomb-java-chassis/issues/4267
代码本来使用了ServiceComb版本2.8.6，切换为SpringMVC 版本5.3.31后，发现有一个上传文件的接口效率下降了
业务代码如下
`
@ResponseBody
@PostMapping(value = "/uploadFile", produces =
MediaType.MULTIPART_FORM_DATA)
public Response upload1File(@NotNull MultipartFile file,
HttpServletRequest request) {
try (InputStream inputStream = file.getInputStream();) {
// 具体业务
}
}
`
分析了火焰图，发现使用了MVC框架后，主要在这部分消耗比较多时间
[40]48.31% 9,101 self: 0.02% 3
orglapache/tomcat/util/http/fileupload/MultipartStreamSItemInputStream.makeAvailable
.. [41]30.95% 5,830 self 0.02% 3
org/apache/tomcat/util/http/fileupload/MultipartStreamSItemInputStream.findSeparator
[42]30.93% 5,827 self: 30.93% 5,827
org/apache/tomcat/util/http/fileupload/MultipartStream.findSeparator
serviceComb 处理表单的方法
io.netty.handler.codec.http.multipart.HttpPostMultipartRequestDecoder#findMultipartDelimiter
想问下ServiceComb在对于MultipartFile文件接口有没有做什么优化，还是说可能只是底层一个是tomcat，一个是netty的原因
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