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Spring使用mutipartFile上传文件报错_springcloudcannot invoke "org.springframework.web.

springcloudcannot invoke "org.springframework.web.multipart.multipartfile.ge

实现文件上传时报“Failed to instantiate [org.springframework.web.multipart.MultipartFile]”错

  1. org.springframework.web.bind.annotation.support.HandlerMethodInvoker.resolveModelAttribute(HandlerMethodInvoker.java:762)
  2. org.springframework.web.bind.annotation.support.HandlerMethodInvoker.resolveHandlerArguments(HandlerMethodInvoker.java:356)
  3. org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:171)
  4. org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:426)
  5. org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:414)
  6. org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790)
  7. org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
  8. org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
  9. org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560)
  10. javax.servlet.http.HttpServlet.service(HttpServlet.java:646)
  11. javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
  12. org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
  13. org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
  14. org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
  15. org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
  16. org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

在参数 MutipartFile 前添加注解@RequestParam

 

问题原因:

可能是直接传入mutipartFile参数Spring将无法自动映射上传文件到参数中,因此需要使用@RequestParam指定,将上传的文件映射到参数中。

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