紧急求救：tomcat 无法正常使用

[xiangzheng]

各位大哥帮帮忙啊，弄了一整天了~
操作系统：windows xp
jdk: 1.6.0_01
tomcat: 5.5.26
安装完毕后，输入http://localhost:8080/index.jsp 显示安装成功，
查看tomcat中带的例子都正常，
就是使用manger工具时，无法Deploy,总是显示以下错误页面：
HTTP Status 500 -

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type Exception report

message

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

exception

javax.servlet.ServletException: Servlet execution threw an exception


root cause

java.lang.NoClassDefFoundError: org/apache/commons/io/output/DeferredFileOutputStream
org.apache.commons.fileupload.DefaultFileItemFactory.createItem(DefaultFileItemFactory.java:103)
org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:350)
org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:302)
org.apache.catalina.manager.HTMLManagerServlet.doPost(HTMLManagerServlet.java:157)
javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)


note The full stack trace of the root cause is available in the Apache Tomcat/5.5.26 logs.


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急死我了，求高手帮忙啊！

[fastunit]

FileUpload依赖Commons IO：http://commons.apache.org/io/

[just_mimi]

参考这个同仁的 帖子 :http://blog.csdn.net/quqi99/archive/2007/07/06/1680647.aspx

[yibunengjing]

FileUpload这个东西消耗掉太多内存了，去检查一下你运用FileUpload的地方的代码是否规范
以及加大tomcat的使用内存，在启动参数那里可以修改