java-Spring上传文件

概述这个问题已经在这里有了答案：            >            How to solve this java.lang.NoClassDefFoundError: org/apache/commons/io/output/DeferredFileOutputStream?                                  

这个问题已经在这里有了答案：            >            How to solve this java.lang.NoClassDefFoundError: org/apache/commons/io/output/DeferredFileOutputStream?                                    6个
我是Spring的新手,我开始开发用于上传文件的应用程序,我使用了spring的官方文档,但是,我遇到此错误：

Handler processing Failed; nested exception is java.lang.NoClassDefFoundError: org/apache/commons/io/output/DeferredfileOutputStream at org.springframework.web.servlet.dispatcherServlet.dodispatch(dispatcherServlet.java:823) 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:637) at javax.servlet.http.httpServlet.service(httpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:143) at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237) at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167) 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:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) 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:298) at org.apache.coyote.http11.http11Processor.process(http11Processor.java:852) at org.apache.coyote.http11.http11Protocol$http11ConnectionHandler.process(http11Protocol.java:588) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Thread.java:619)Caused by: java.lang.NoClassDefFoundError: org/apache/commons/io/output/DeferredfileOutputStream at org.apache.commons.fileupload.disk.diskfileItemFactory.createItem(diskfileItemFactory.java:191) at org.apache.commons.fileupload.fileUploadBase.parseRequest(fileUploadBase.java:350) at org.apache.commons.fileupload.servlet.ServletfileUpload.parseRequest(ServletfileUpload.java:126) at org.springframework.web.multipart.commons.CommonsMultipartResolver.parseRequest(CommonsMultipartResolver.java:155) at org.springframework.web.multipart.commons.CommonsMultipartResolver.resolveMultipart(CommonsMultipartResolver.java:138) at org.springframework.web.servlet.dispatcherServlet.checkMultipart(dispatcherServlet.java:907) at org.springframework.web.servlet.dispatcherServlet.dodispatch(dispatcherServlet.java:750)

最佳答案Spring的文件上传内容在后台使用Apache Commons FileUpload.您需要下载该文件并将其包含在您的应用中.反过来,这也需要Apache Commons IO,所以您也将需要Apache Commons IO. 总结

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