spring 3 上传文件报错“An internal error occurred during: "Label Job".java.lang.NullPo”

type Exception report

message Handler processing failed; nested exception is java.lang.NoClassDefFoundError: javax/servlet/http/HttpServletRequest

description The server encountered an internal error that prevented it from fulfilling this request.

exception

org.springframework.web.util.NestedServletException: Handler processing failed; nested exception is java.lang.NoClassDefFoundError: javax/servlet/http/HttpServletRequest
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:972)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:789)
javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)

root cause

java.lang.NoClassDefFoundError: javax/servlet/http/HttpServletRequest
org.apache.commons.fileupload.servlet.ServletRequestContext.getContentType(ServletRequestContext.java:73)
org.apache.commons.fileupload.FileUploadBase$FileItemIteratorImpl.<init>(FileUploadBase.java:905)
org.apache.commons.fileupload.FileUploadBase.getItemIterator(FileUploadBase.java:331)
org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:351)
org.apache.commons.fileupload.servlet.ServletFileUpload.parseRequest(ServletFileUpload.java:126)
org.springframework.web.multipart.commons.CommonsMultipartResolver.parseRequest(CommonsMultipartResolver.java:156)
org.springframework.web.multipart.commons.CommonsMultipartResolver.resolveMultipart(CommonsMultipartResolver.java:139)
org.springframework.web.servlet.DispatcherServlet.checkMultipart(DispatcherServlet.java:1020)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:883)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:789)
javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)

2012-12-29 14:33:35 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet [appServlet] in context with path [/springtest] threw exception [Handler processing failed; nested exception is java.lang.NoClassDefFoundError: javax/servlet/http/HttpServletRequest] with root cause
java.lang.NoClassDefFoundError: javax/servlet/http/HttpServletRequest
at org.apache.commons.fileupload.servlet.ServletRequestContext.getContentType(ServletRequestContext.java:73)
at org.apache.commons.fileupload.FileUploadBase$FileItemIteratorImpl.<init>(FileUploadBase.java:905)
at org.apache.commons.fileupload.FileUploadBase.getItemIterator(FileUploadBase.java:331)
at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:351)
at org.apache.commons.fileupload.servlet.ServletFileUpload.parseRequest(ServletFileUpload.java:126)
at org.springframework.web.multipart.commons.CommonsMultipartResolver.parseRequest(CommonsMultipartResolver.java:156)
at org.springframework.web.multipart.commons.CommonsMultipartResolver.resolveMultipart(CommonsMultipartResolver.java:139)
at org.springframework.web.servlet.DispatcherServlet.checkMultipart(DispatcherServlet.java:1020)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:883)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:789)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1002)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)

xml文件配置：

    <beans:bean id="multipartResolver"          class="com.smoner.springtest.client.controller.file.PubCommonsMultipartResolver">
        
        <beans:property name="maxUploadSize" value="100000" />
    </beans:bean>

上传页面代码：
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<form id="form" method="post"
action="/springtest/file/fileupload"
enctype="multipart/form-data">
<tr>
<td>upload your file:<input id="name" type="file" name="file" />
</td>
<td><input type="submit" name="upload" /></td>
</tr>
</form>
</body>
</html>

处理上传代码：

@RequestMapping(value="/fileupload")
public String updateThumb(@RequestParam() MultipartFile file)  throws Exception{
if(!file.isEmpty()){
file.transferTo(new File("F:/soft/yonyou/spring/spring-workplace_test/fileuploadtest"+file.getOriginalFilename()));
return "redirect:successs.html";
}else{
return "redirect:fail.html";
}
}

--------------------编程问答--------------------

--------------------编程问答--------------------

--------------------编程问答-------------------- An internal error occurred during: "Label Job".
java.lang.NullPointerException --------------------编程问答-------------------- 补充：

eclipse工具不停的弹出此窗口。报An internal error occurred during: "Label Job".
java.lang.NullPointerException 错误。

补充：Java ,  Java相关