spring 上传文件 类型转换错误spring 上传文件 类型转换错误
spring 上传文件 类型转换异常
报的错误信息:
严重: Servlet.service() for servlet springmvc threw exception
java.lang.ClassCastException: org.apache.catalina.connector.RequestFacade cannot be cast to org.springframework.web.multipart.MultipartHttpServletRequest
a...
spring 上传文件 类型转换错误
spring 上传文件 类型转换异常
报的错误信息:
严重: Servlet.service() for servlet springmvc threw exception
java.lang.ClassCastException: org.apache.catalina.connector.RequestFacade cannot be cast to org.springframework.web.multipart.MultipartHttpServletRequest
at
com.oumasoft.cms.web.control.ContentController.saveContent(ContentController.java:82)
at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
at
org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:426)
at
org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:414)
at
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790)
at
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
at
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
at
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560)
at
javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)
这一行代码出现错误
MultipartHttpServletRequest multipartrequest = (MultipartHttpServletRequest) request;
用debug进入:
final SecurityManager sm = System.getSecurityManager();
------解决方案--------------------------------------------------------
request??
@RequestMapping( /upload )
public ModelAndView upload(@RequestParam( file ) CommonsMultipartFile file) {
}
上传应该类似于这样...
------解决方案--------------------------------------------------------
刚做项目有用到,我是这么用的,供参考
@RequestMapping(value = /admin/mulipart/mulipartFile.action , method = {RequestMethod.GET, RequestMethod.POST })
public String readData(CommonsMultipartFile file, HttpServletRequest request, ModelMap model) throws Exception {} 然后file 可以直接操作
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