如何在Liferay中使用Ajax请求提交表单？

我是liferay门户的新手.我已经开发了一个portlet在liferay演示.在这个例子中我使用了portlet通信.我正在做的是： – 我有一个搜索portlet,我有一个文本框搜索.当我点击搜索按钮时,它从数据库中获取数据,并使用搜索包含在另一个portlet中显示该数据.我为此项目使用ProcessEvent和ActionEvent注释.

现在我想要的是当我点击搜索按钮,然后不应该刷新页面(即我希望使用AJAX的概念),数据应该显示在其他portlet上.

代码片段

Portlet A – view.jsp

<%@include file="/html/init.jsp"%>
<portlet:defineObjects />

<!--

<portlet:actionURL var="actionURL" name="pitchBall"></portlet:actionURL>

//-->
**Change to Resource URL**
<portlet:resourceURL var="resourceURL">
</portlet:resourceURL>


<aui:form method="POST" action="<%= resourceURL%>" name="    <portlet:namespace>fm1</portlet:namespace>">
    <aui:input name="search" id="search" />
    <aui:button type="submit" name="Search" value="Search" />
</aui:form>

Portlet A – SearchPortlet类

package com.test;

/**
 * Portlet implementation class SearchPortlet
 */
public class SearchPortlet extends GenericPortlet {

    @Override
    public void render(RenderRequest request,RenderResponse response)
            throws PortletException,IOException {
        // Todo Auto-generated method stub
        super.render(request,response);

    }

    @ProcessAction(name="pitchBall") 
    public void pitchBall(ActionRequest request,ActionResponse response) throws SystemException {
        String name = ParamUtil.getString(request,"search");       
        QName qName = new QName("http://liferay.com/events","ipc.pitch");
        response.setEvent(qName,name);
    }

    public void init() {
        editJSP = getinitParameter("edit-jsp");
        helpJSP = getinitParameter("help-jsp");
        viewJSP = getinitParameter("view-jsp");
    }

    public void doEdit(
            RenderRequest renderRequest,RenderResponse renderResponse)
        throws IOException,PortletException {

        include(editJSP,renderRequest,renderResponse);
    }

    public void doHelp(
            RenderRequest renderRequest,PortletException {

        include(helpJSP,renderResponse);
    }

    @Override
    public void doView(
            RenderRequest renderRequest,PortletException {
        //super.doView(renderRequest,renderResponse);
        System.out.println("In doView code");

        renderResponse.setContentType(renderRequest.getResponseContentType());

        // file to display...
        String url = "/html/searchportlet/view.jsp";

        // read the above file and output it...
        getPortletContext().getRequestdispatcher(url).include(renderRequest,renderResponse);
        //include(viewJSP,renderResponse);
    }

    @Override
    public void serveResource(ResourceRequest request,ResourceResponse response)
            throws PortletException,IOException {
        // Todo Auto-generated method stub
        //super.serveResource(request,response);
         System.out.println("In serveResource code");

         response.setContentType("text/html");

         String name = request.getParameter("search");

         // this seems to be the page that was calling...?
         String resourceID = request.getResourceID();
         System.out.println("resourceId was : " + resourceID);


         System.out.println("message was : " + name);
         PrintWriter writer = response.getWriter();

         writer.print(name);
    }

    protected void include(
            String path,RenderRequest renderRequest,PortletException {

        PortletRequestdispatcher portletRequestdispatcher =
            getPortletContext().getRequestdispatcher(path);

        if (portletRequestdispatcher == null) {
            _log.error(path + " is not a valid include");
        }
        else {
            portletRequestdispatcher.include(renderRequest,renderResponse);
        }
    }

    protected String editJSP;
    protected String helpJSP;
    protected String viewJSP;

    private static Log _log = LogFactoryUtil.getLog(SearchPortlet.class);

}

Portlet B – view.jsp

<%@include file="/html/init.jsp"%>
<portlet:defineObjects />

<%
String name = (String)renderRequest.getParameter("name");
%>

<liferay-ui:search-container
    emptyResultsMessage="author-empty-results-message">

    <liferay-ui:search-container-results
        results="<%= KeyurAuthorLocalServiceUtil.getStudentByName(name) %>" />

    <liferay-ui:search-container-row className="com.test.model.KeyurAuthor">

        <liferay-ui:search-container-column-text name="authorId"
            property="authorId" />
        <liferay-ui:search-container-column-text name="authorName"
            property="authorName" />
        <liferay-ui:search-container-column-text name="authorEmail"
            property="authorEmail" />
    </liferay-ui:search-container-row>

    <liferay-ui:search-iterator></liferay-ui:search-iterator>


</liferay-ui:search-container>

Portlet B – SearchResultPortlet类

/**
 * Portlet implementation class SearchResultPortlet
 */
public class SearchResultPortlet extends GenericPortlet {

    public void init() {
        editJSP = getinitParameter("edit-jsp");
        helpJSP = getinitParameter("help-jsp");
        viewJSP = getinitParameter("view-jsp");
    }

    @ProcessEvent(qname="{http://liferay.com/events}ipc.pitch")
    public void catchBall(EventRequest request,EventResponse response) {
        Event event = request.getEvent();
        String name = (String)event.getValue();
        response.setRenderParameter("name",name);
    }

    public void doEdit(
            RenderRequest renderRequest,RenderResponse renderResponse)
    throws IOException,renderResponse);
    }

    public void doView(
            RenderRequest renderRequest,PortletException {

        include(viewJSP,renderResponse);
    }

    protected void include(
            String path,renderResponse);
        }
    }

    protected String editJSP;
    protected String helpJSP;
    protected String viewJSP;

    private static Log _log = LogFactoryUtil.getLog(SearchResultPortlet.class);

}

javax.portlet.ResourceServingPortlet

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

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);
    }
}

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,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);
    }
}

<%@ 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>

<%@ 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>

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