org.apache.tomcat.util.http.fileupload.disk.DiskFileItemFactory cannot be cast to

答案:1 悬赏:70

解决时间 2021-03-14 00:16

提问者网友：若相守￡卟离
2021-03-13 13:13

八月 24, 2014 4:30:25 下午 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet [com.lileihong.web.UploadFeilServlet] in context with path [/web] threw exception
java.lang.ClassCastException: org.apache.tomcat.util.http.fileupload.disk.DiskFileItemFactory cannot be cast to org.apache.commons.fileupload.FileItemFactory
at com.lileihong.web.UploadFeilServlet.doPost(UploadFeilServlet.java:60)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)

最佳答案

二级知识专家网友：放肆的依賴
2021-03-13 13:51

这个原因是因为用的org.apache.tomcat.util.http.fileupload.disk.DiskFileItemFactory
不是org.apache.commons.fileupload.FileItemFactory的子类

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