dynimage.java

来自「j2ee程序」· Java 代码 · 共 81 行

JAVA
81 行
字号 
/*
 * dynImage.java
 *
 * Created on 2006年11月29日, 下午4:17
 */

package myPackage;

import java.io.*;
import java.net.*;

import javax.servlet.*;
import javax.servlet.http.*;
import org.eclipse.jdt.internal.compiler.ast.ThisReference;

/**
 *
 * @author promenade
 * @version
 */
public class dynImage extends HttpServlet {
    
    /** Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
       
        HttpSession session = request.getSession();
        boolean flag = ((Boolean)session.getAttribute("onlineFlag") ).booleanValue();
        String file1 = (String)session.getAttribute("fileName1");
        String file2 = (String)session.getAttribute("fileName2");
        out.println("<html>");
        out.println("<head>");
        out.println("<title>Servlet dynImage</title>");
        out.println("</head>");
        out.println("<body>");
        
        if( flag ){
            out.println( "<img src=\"myUploadFiles/online.img\" />" );
        }
        else{
            out.println( "<img src=\"myUploadFiles/offline.img\" />" );
        }
        
       out.println("</body>");
       out.println("</html>");

        out.close();
    }
    
    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }
    
    /** Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }
    
    /** Returns a short description of the servlet.
     */
    public String getServletInfo() {
        return "Short description";
    }
    // </editor-fold>
}

dynimage.java - 源码说明

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