如何在Liferay中使用Ajax请求提交表单？

在门户网站上发出ajax请求时，您的portlet应该实现

javax.portlet.ResourceServingPortlet

GenericPortlet已经存在，但是您想覆盖它，而不是使用它，而

<portlet:actionURL/>

<portlet:resourceURL />

并且在您的设置中，您应该具有带有关键字隐藏字段的搜索表单，并且在搜索portlet中单击“提交”按钮时，您应该使用IPC复制该表单中的关键字，以搜索结果portlet并从中调用对搜索结果的提交（不提交表单）。搜索portlet（A））。

您的SearchResultPortlet类应为

public class SearchResultPortlet extends GenericPortlet {    ...    public void serveResource(ResourceRequest request, ResourceResponse response) throws PortletException, java.io.IOException {       // do search and return result    }    ...}

编辑：完整的例子

搜索表格

import java.io.IOException;import javax.portlet.GenericPortlet;import javax.portlet.PortletException;import javax.portlet.RenderRequest;import javax.portlet.RenderResponse;public class SearchForm extends GenericPortlet {    @Override    protected void doView(RenderRequest p_request, RenderResponse p_response) throws PortletException, IOException {        getPortletContext().getRequestDispatcher("/WEB-INF/jsp/search.jsp").include(p_request, p_response);    }}

搜索结果

import java.io.IOException;import javax.portlet.GenericPortlet;import javax.portlet.PortletException;import javax.portlet.RenderRequest;import javax.portlet.RenderResponse;import javax.portlet.ResourceRequest;import javax.portlet.ResourceResponse;public class SearchResult extends GenericPortlet {    @Override    protected void doView(RenderRequest p_request, RenderResponse p_response) throws PortletException, IOException {        getPortletContext().getRequestDispatcher("/WEB-INF/jsp/result.jsp").include(p_request, p_response);    }    @Override    public void serveResource(ResourceRequest p_request, ResourceResponse p_response) throws PortletException, IOException {         //do your search here and put results in 'result'        p_request.setAttribute("result", "results for: " + p_request.getParameter("search"));        getPortletContext().getRequestDispatcher("/WEB-INF/jsp/html.jsp").include(p_request, p_response);    }}

search.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@ taglib uri="http://java.sun.com/portlet" prefix="portlet" %><portlet:defineObjects /><script type="text/javascript">    function doSearch() {        Liferay.fire('searchKeywords', document.getElementById("<portlet:namespace/>search").value);        }</script><form>    <input type="text" name="search" id="<portlet:namespace/>search" />    <button name="Search" value="Search" onclick="doSearch()" type="button">Search</button></form>

result.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@ taglib uri="http://java.sun.com/portlet" prefix="portlet" %><%@ taglib uri="http://liferay.com/tld/aui" prefix="aui" %><portlet:defineObjects /><portlet:resourceURL var="rurl" /><script type="text/javascript">    Liferay.on('searchKeywords', function(event, p_data){        var A = AUI();         A.use('aui-io-request', function(aui) { A.io.request("<%= rurl %>", {      method : 'POST',      data: {search: p_data},     dataType : 'html',      on : {          success : function() {   AUI().one("#<portlet:namespace/>placeholder").html(this.get('responseData'));         }      }  });        });    });</script>Search Results:<br /><div id="<portlet:namespace/>placeholder"></div>

html.jsp（用于呈现结果）

<%= request.getAttribute("result") %>