关于文件上传遇到的问 no multipart boundary was found

org.apache.tomcat.util.http.fileupload.FileUploadException: the request was rejected because no multipart boundary was foundorg.apache.tomcat.util.http.fileupload.FileUploadBase$FileItemIteratorImpl.<init>(FileUploadBase.java:840)org.apache.tomcat.util.http.fileupload.FileUploadBase.getItemIterator(FileUploadBase.java:259)org.apache.tomcat.util.http.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:283)org.apache.catalina.connector.Request.parseParts(Request.java:2811)org.apache.catalina.connector.Request.getParts(Request.java:2729)org.apache.catalina.connector.RequestFacade.getParts(RequestFacade.java:1075)org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.parseRequest(StandardMultipartHttpServletRequest.java:84)org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.<init>(StandardMultipartHttpServletRequest.java:77)org.springframework.web.multipart.support.StandardServletMultipartResolver.resolveMultipart(StandardServletMultipartResolver.java:76)org.springframework.web.servlet.DispatcherServlet.checkMultipart(DispatcherServlet.java:1073)org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:912)org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877)org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:868)javax.servlet.http.HttpServlet.service(HttpServlet.java:650)org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)javax.servlet.http.HttpServlet.service(HttpServlet.java:731)org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)com.springapp.mvc.filter.UploadImageInterceptor.doFilter(UploadImageInterceptor.java:27)

上面的问题在我使用postman来上传图片时候，死活都没过。。显示这个，问题在哪呢？

下面是头的设置：

选择的文件的配置：

问题的原因

You shouldNEVERset that header yourself. We set the header properly with the boundary. If you set that header, we won't and your server won't know what boundary to expect (since it is added to the header). Remove your custom Content-Type header and you'll be fine.

src： 

http://stackoverflow.com/questions/17415084/multipart-data-post-using-python-requests-no-multipart-boundary-was-found

简称。。制作多情。。。头部会自动加好，不要画足添蛇。。。。。。。。。