dwr错误

一、dwr遇到这种错误：
org.directwebremoting.util.CommonsLoggingOutput error
严重: A request has been denied as a potential CSRF attack.
解决办法：在web.xml配置文件中修改dwr的配置：

<servlet> <servlet-name>dwr-invoker</servlet-name> <servlet-class>org.directwebremoting.servlet.DwrServlet</servlet-class> <init-param> <param-name>debug</param-name> <param-value>true</param-value> </init-param> <!-- 新加corssDomainSessionSecurity参数 --> <init-param> <param-name>crossDomainSessionSecurity</param-name> <param-value>false</param-value> </init-param> </servlet>