dwr下A request has been denied as a potential CSRF attack.问题

最近换到了tomcat7，运行代码的时候发现问题了，

控制台所有的dwr请求都变成了：“A request has been denied as a potential CSRF attack”

所有的都不能访问，提示跨域访问问题，然后换回tomcat6，发现每一点问题，

网上查了半天，发现时dwr的问题

解决办法如下：

修改web.xml的dwr配置，：

<listener> <listener-class> org.directwebremoting.servlet.EfficientShutdownServletContextListener </listener-class> </listener> <display-name>DWR (Direct Web Remoting)</display-name> <description>A Simple Demo DWR</description> <servlet> <servlet-name>dwr-invoker</servlet-name> <servlet-class> org.directwebremoting.servlet.DwrServlet </servlet-class> <!-- This should NEVER be present in live --> <init-param> <param-name>debug</param-name> <param-value>true</param-value> </init-param> <!-- Remove this unless you want to use active reverse ajax --> <init-param> <param-name>activeReverseAjaxEnabled</param-name> <param-value>true</param-value> </init-param> <!-- By default DWR creates application scope objects when they are first used. This creates them when the app-server is started --> <init-param> <param-name> initApplicationScopeCreatorsAtStartup </param-name> <param-value>true</param-value> </init-param> <!-- This enables full streaming mode. It's probably better to leave this out if you are running across the internet --> <init-param> <param-name>maxWaitAfterWrite</param-name> <param-value>-1</param-value> </init-param> <!-- For more information on these parameters, see: - http://getahead/dwr/server/servlet - http://getahead/dwr/reverse-ajax/configuration --> <!-- 新加corssDomainSessionSecurity参数 --> <init-param> <param-name>crossDomainSessionSecurity</param-name> <param-value>false</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>dwr-invoker</servlet-name> <url-pattern>/dwr/*</url-pattern> </servlet-mapping> <session-config> <session-timeout>3000</session-timeout> </session-config> <welcome-file-list> <welcome-file>brandlogin.html</welcome-file> </welcome-file-list> 

其中最主要的地方是：

<init-param> <param-name>crossDomainSessionSecurity</param-name> <param-value>false</param-value> </init-param>

改完之后，重新运行了下，发现一切ok，但是网上还有一个提示，dwr的引用必须进行修改

改成如下的方式：

<mce:script type='text/javascript' src="dwr/engine.js" mce_src="dwr/engine.js"></mce:script> <mce:script type='text/javascript' src="dwr/util.js" mce_src="dwr/util.js"></mce:script>