struts2 拦截器 拦截了jqgrid表格的url
项目中使用了 JQgrid用作表格展现。 其中的jquery 提交ajax方式

jQuery(document).ready(function() {

	jQuery("#menulist").jqGrid( {

		url :"menuAction_viewMenu.action",// 这里的url 断点不走方法

		datatype : "json",

		mtype : "post",

这个方法被struts2的拦截器拦截 ，访问时，按理来说应该返回一串json串，现如今直接跳转到登陆界面。请问这里应该怎么修改。 因为项目是半路接手，新手不太懂。还望各位前辈指教！

跪谢！！！！！

下面是配置文件

<package name="basePackage" extends="json-default">

      

       <interceptors>

        <interceptor name="keywordInterceptor" class="zyzy.common.interceptor.KeywordInterceptor"/>

		<!-- 异常处理拦截器 -->

		<interceptor name="exceptionInteceptor"

			class="ExceptionInteceptor">

			<param name="exceptionDisplay">exceptionDisplay</param>

		</interceptor>



		<!-- 定义异常拦截器栈 -->

		<interceptor-stack name="exceptionStack">

			<interceptor-ref name="defaultStack"></interceptor-ref>

			<!-- <interceptor-ref name="exceptionInteceptor"></interceptor-ref> -->

			<interceptor-ref name="keywordInterceptor">

			

			</interceptor-ref>

		</interceptor-stack>

       

        </interceptors>

        <!-- 定义默认拦截器 -->

		<default-interceptor-ref name="exceptionStack" />

		

		<!--定义全局输出结果 type="redirect" -->

		<global-results>

			<result name="info">/common/info.jsp</result>

			<result name="timeOut">

				/common/exception.jsp

			</result>

			<result name="exceptionDisplay">

				/common/exception.jsp

			</result>

		</global-results>

		<!-- 异常处理 -->

		<global-exception-mappings>

			<exception-mapping result="exceptionDisplay"

				exception="zyzy.common.exception.BaseException">

			</exception-mapping>

		</global-exception-mappings>

拦截器：

public class KeywordInterceptor extends AbstractInterceptor{

    private final static String [] KEYWORD_MYSQL = {"|",";","$","%","@","'"," ","<>","()","","//+","CR","LF",",",".","document","eval","or","and","exec ","call ","insert ","select ","delete ",

			"exe","update ","master","truncate ","declare ","#","java",

			"drop ","create ","<script","/script>","iframe"};

	

	@SuppressWarnings({ "rawtypes", "unchecked" })

	public String intercept(ActionInvocation actionInvocation) throws Exception {

		

		Map params = actionInvocation.getInvocationContext().getParameters();

		if(params.size() > 0){

			Iterator iterator = params.entrySet().iterator();

			String temp_str;

			Map.Entry temp;

			int zCount = 0;

			boolean test = false;

			Map tempMap = new HashMap();

			while(iterator.hasNext()){

				temp = (Map.Entry)iterator.next();

				if(temp.getValue() instanceof String)

					temp_str = temp.getValue().toString();