obtainchaptercontentsevent.java

来自「一个在线学习系统的服务端SERVLET程序」· Java 代码 · 共 40 行

package eols.event.course;

import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;

import eols.bean.course.*;
import eols.tools.*;
/**
 * <p>Title: Handler of contents of the specified chapter retrievement event </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2007</p>
 * <p>Company: </p>
 * @author Fasheng Qiu
 * @version 1.0
 */
public class ObtainChapterContentsEvent
    extends CourseEventHandlerBase {

    /**
     * Obtain all contents of the specified chapter.
     *
     * @param sc Servlet context
     * @param request Http request
     * @param response Http response
     * @param bean JavaBean
     */
    public void process(ServletContext sc, HttpServletRequest request,
                        HttpServletResponse response, HashMap bean) {
        super.process(sc, request, response, bean);
        long catID = RequestUtils.getLongParameter(request, "categoryID", -1);
        long courseID = RequestUtils.getLongParameter(request, "courseID", -1);
        long chapterID = RequestUtils.getLongParameter(request, "chapterID", -1);
        Content c = new Content(catID, courseID, chapterID);
        request.setAttribute(
            "chaptercontents",
            super.iTran.getStorageManager().getRecords(c));
    }
}