解決異常ognl.OgnlException: source is null for getProperty(null, “token”)

異常如下

2010-03-13 09:26:06,224 INFO [STDOUT] (http-0.0.0.0-8080-3) 09:26:06,223 WARN [OgnlValueStack] Error setting expression 'struts.token.name' with value '[Ljava.lang.String;@5cfe5cfe'<br /> ognl.OgnlException: source is null for getProperty(null, "token")<br /> at ognl.OgnlRuntime.getProperty(OgnlRuntime.java:2203)<br /> at ognl.ASTProperty.getValueBody(ASTProperty.java:114)</p><p> ...........................<br />

在Struts2設定檔裡添加如下代碼

<interceptor-ref name="params"><br /> <param name="excludeParams">dojo/..*,struts.token,struts.token.name</param><br /></interceptor-ref><br />