contexturltag.java

java 写的一个新闻发布系统

package org.jahia.taglibs.url;

import org.jahia.data.JahiaData;
import org.jahia.exceptions.JahiaException;
import org.jahia.utils.JahiaConsole;

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

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


/**
 * Class ImageURLTag : returns the URL used to access the image directory
 *
 * @author  Jerome Tamiotti
 */
public class ContextURLTag extends TagSupport {
    
    public int doStartTag() {

		HttpServletRequest request = (HttpServletRequest)pageContext.getRequest();
		try {
			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");
			}
			JspWriter out = pageContext.getOut();
			out.print(jData.gui().drawHttpJspContext(request));

		} catch (IOException ioe) {
			JahiaConsole.println("ContextURLTag: doStartTag ", ioe.toString());
		}
		return SKIP_BODY;
	}

}