Liferay ActionRequest

Liferay  ActionRequest

java 檔

package com.liferay.samples;

import java.io.IOException;

import javax.portlet.ActionRequest;

import javax.portlet.ActionResponse;

import javax.portlet.PortletException;

import javax.portlet.PortletPreferences;

import com.liferay.portal.kernel.servlet.SessionMessages;

import com.liferay.util.bridges.mvc.MVCPortlet;

public class MyGreetingPortlet extends MVCPortlet {

    @Override

    public void processAction(

            ActionRequest actionRequest, ActionResponse actionResponse)

        throws IOException, PortletException {

        PortletPreferences prefs = actionRequest.getPreferences();

        String greeting = actionRequest.getParameter("greeting");

        if (greeting != null) {

            prefs.setValue("greeting", greeting);

            prefs.store();

       

        }

        SessionMessages.add(actionRequest, "success");

        super.processAction(actionRequest, actionResponse);

    }

}

view.jsp

<%@ taglib uri="http://java.sun.com/portlet_2_0" prefix="portlet"%>

<%@ taglib uri="http://liferay.com/tld/aui" prefix="aui"%>

<%@ taglib uri="http://liferay.com/tld/ui" prefix="liferay-ui"%>

<%@ page import="com.liferay.portal.kernel.util.ParamUtil"%>

<%@ page import="com.liferay.portal.kernel.util.Validator"%>

<%@ page import="javax.portlet.PortletPreferences"%>

<portlet:defineObjects />

<%

 PortletPreferences prefs = renderRequest.getPreferences();

 String greeting = (String) prefs.getValue("greeting",

 "Hello! Welcome to our portal.");

%>

<liferay-ui:success key="success" message="Greeting saved successfully!" />

<portlet:actionURL var="editGreetingURL">

 <portlet:param name="jspPage" value="/view.jsp" />

</portlet:actionURL>

<aui:form action="<%=editGreetingURL%>" method="post">

 <aui:input label="greeting" name="greeting" type="text"

 value="<%=greeting%>" />

 <aui:button type="submit" />

</aui:form>

<portlet:renderURL var="viewGreetingURL">

 <portlet:param name="jspPage" value="/view.jsp" />

</portlet:renderURL>

<p>

 <a href="<%=viewGreetingURL%>">Back</a>

</p>

注:

portlet.xml要加<portlet-class>package name.java name</portlet-class>