homepageurltag.java

java 写的一个新闻发布系统

package org.jahia.taglibs.util;

import org.jahia.data.JahiaData;
import org.jahia.exceptions.JahiaException;
import org.jahia.services.pages.JahiaPage;
import org.jahia.utils.JahiaConsole;

import java.io.*;
import java.util.*;

import javax.servlet.*;
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;


/**
 * Class HomePageURLTag : returns the URL of the home page
 *
 * @author  Jerome Tamiotti
 */
public class HomePageURLTag extends TagSupport {
    
    public int doStartTag() {

		ServletRequest request = pageContext.getRequest();
		JahiaData jData = (JahiaData) request.getAttribute("org.jahia.data.JahiaData");
		if (jData == null) {
			HashMap tempEngineMap = (HashMap) request.getAttribute("org.jahia.engines.EngineHashMap");
			jData                 = (JahiaData) tempEngineMap.get("jData");
		}
		try {
		    JahiaPage homePage = jData.gui().getHomePage();
			JspWriter out = pageContext.getOut();
			out.print( homePage.getURL() );
		} catch (IOException ioe) {
			JahiaConsole.println("HomePageURLTag: doStartTag ", ioe.toString());
		} catch (JahiaException je) {
			JahiaConsole.println("HomePageURLTag: doStartTag ", je.toString());
		}
        return SKIP_BODY;
    }

}