Bean type class com.opensymphony.xwork2.ObjectFactory with the name spring has already been loaded by bean(struts2)

Bean type class com.opensymphony.xwork2.ObjectFactory with the name spring has already been loaded by bean(struts2) 在网上查了一下，有人提议了解决办法： 这个异常基本上搞了我一下午的时间，解决方法如下： 确保有如下几个包： commons-fileupload.jar commons-io.jar struts2-core.jar xwork.jar ognl.jar freemarker.jar 添加: commons-fileupload-1.2.1.jar commons-io-1.3.2.jar 工程里确实没有发现这两个包，因为struts2的默认拦截器栈有文件上传的拦截器,于是这两个包就成了必须包.于是加入了:commons-io-1.3.2.jar、commons-fileupload-1.2.1.jar.异常没有解决.其实仔细观察这个异常信息,就已经指明了异常出现的问题: view plaincopy to clipboardprint? 01.Caused by: Bean type class com.opensymphony.xwork2.ObjectFactory with the name xwork has already been loaded by bean - jar:file:/D:/Program%20Files/Apache%20Software%20Foundation/Tomcat%206.0/webapps/BookStore/WEB-INF/lib/struts2-core-2.0.12.jar!/struts-default.xml:30:72 - bean - jar:file:/D:/Program%20Files/Apache%20Software%20Foundation/Tomcat%206.0/webapps/BookStore/WEB-INF/lib/struts2-core-2.1.6.jar!/struts-default.xml:29:72 02. at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register Caused by: Bean type class com.opensymphony.xwork2.ObjectFactory with the name xwork has already been loaded by bean - jar:file:/D:/Program%20Files/Apache%20Software%20Foundation/Tomcat%206.0/webapps/BookStore/WEB-INF/lib/struts2-core-2.0.12.jar!/struts-default.xml:30:72 - bean - jar:file:/D:/Program%20Files/Apache%20Software%20Foundation/Tomcat%206.0/webapps/BookStore/WEB-INF/lib/struts2-core-2.1.6.jar!/struts-default.xml:29:72 at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register 根据这句，发现，之前替换掉的struts和xwork的包没有删掉,还留在lib目录下.删除后,工程部署,运行成功! 本文来自优快云博客，转载请标明出处：http://blog.youkuaiyun.com/injuer/archive/2010/04/25/5525869.aspx