1 首先是view.jsp代碼?

<%@ taglib uri="http://java.sun.com/portlet_2_0" prefix="portlet" %> <%@page contentType="text/html; charset=UTF-8" %> <portlet:defineObjects /><%String rootPath = renderRequest.getContextPath(); %> <script type="text/javascript" src="<%=rootPath%>/js/jQuery/jquery-2.1.1.js"></script>This is the <b>Ajax Learn</b> portlet in View mode.<portlet:resourceURL var="ajaxUrl1" id="test1"/> <portlet:resourceURL var="ajaxUrl2" id="test2"/><script type="text/javascript">function ajaxTest(){$.post('<%=ajaxUrl1%>',{p_p_resource_id:'test1'},function(data){$('#message').html(data);})}function ajaxTest2(){$.post('<%=ajaxUrl2%>',function(data){$('#message').html(data);})} </script><div>這是Ajax測(cè)試，從點(diǎn)擊下面的按鈕從服務(wù)端獲取數(shù)據(jù)。</br><input type="button" value="ajax請(qǐng)求1" οnclick="ajaxTest();"><input type="button" value="ajax請(qǐng)求2" οnclick="ajaxTest2();"><div id="message"></div> </div>

2后臺(tái)處理ajax請(qǐng)求代碼，后臺(tái)返回 類似 ? ? “ 這是服務(wù)端返回的結(jié)果信息test1" 的字符串 ，view.jsp進(jìn)行顯示

package com.test;import java.io.IOException; import java.io.PrintWriter;import javax.portlet.PortletException; import javax.portlet.ResourceRequest; import javax.portlet.ResourceResponse; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse;import com.liferay.portal.util.PortalUtil; import com.liferay.util.bridges.mvc.MVCPortlet;/*** Portlet implementation class AjaxLearn*/ public class AjaxLearn extends MVCPortlet {@Overridepublic void serveResource(ResourceRequest resourceRequest,ResourceResponse resourceResponse) throws IOException,PortletException {String resourceID = resourceRequest.getResourceID();HttpServletRequest request = PortalUtil.getHttpServletRequest(resourceRequest);HttpServletResponse response = PortalUtil.getHttpServletResponse(resourceResponse);response.setContentType("text/html;charset=UTF-8");PrintWriter out = null;try {out = response.getWriter();} catch (IOException e) {e.printStackTrace();}String result = "這是服務(wù)端返回的結(jié)果信息:";if("test1".equals(resourceID)){result = result + "test1";}else if("test2".equals(resourceID)){result = result + "test2";} out.println(result);out.flush();out.close();super.serveResource(resourceRequest, resourceResponse);}}

3 點(diǎn)擊之前的view.jsp頁(yè)面

4 點(diǎn)擊ajax請(qǐng)求1后的頁(yè)面

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