打开下面的文件  
X:\jboss-4.2.2.GA\server\default\deploy\jboss-web.deployer\server.xml 
其中的类似内容改成这样
<Connector port="8080" address="0.0.0.0"    
         maxThreads="250" maxHttpHeaderSize="8192"
         emptySessionPath="true" protocol="HTTP/1.1"
         enableLookups="false" redirectPort="8443" acceptCount="100"
         connectionTimeout="20000" disableUploadTimeout="true" URIEncoding="UTF-8"/>