modify.java

使用J2EE实现了软件园的下载和上传功能

package software;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import javax.naming.*;
import javax.rmi.*;
public class modify extends HttpServlet {
    private static final String CONTENT_TYPE = "text/html; charset=GB2312";

    //Initialize global variables
    public void init() throws ServletException {
    }

    //Process the HTTP Get request
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
        response.setContentType(CONTENT_TYPE);
        PrintWriter out = response.getWriter();
        String submit = request.getParameter("submit");
        String infor=request.getParameter("softwareInfor");
        System.out.println("infor"+infor);
        String id=request.getParameter("id2");
        System.out.println("id"+id);
       if (submit.equals("Edit")) {
           try{
           Context ic = new InitialContext();
           Object obj = ic.lookup("sessionBean");
           software.sessionHome home = (software.sessionHome) PortableRemoteObject.narrow(obj, software.sessionHome.class);
           software.session b = home.create();
           b.modify(id,infor);
           out.println("<script>alert('成功修改！');</script>");
           response.sendRedirect("list.jsp?type=all");
           }catch(Exception ex){
           ex.printStackTrace();
           }
       }
       else if(submit.equals("Delete")) {
           try{

              Context ic = new InitialContext();
              Object obj = ic.lookup("sessionBean");
              software.sessionHome home = (software.sessionHome) PortableRemoteObject.narrow(obj, software.sessionHome.class);
              software.session b = home.create();
              b.delete(id);
              response.sendRedirect("list.jsp?type=all");
              }catch(Exception ex){
              ex.printStackTrace();
              }
       }
       out.close();
            }
    //Clean up resources
    public void destroy() {
    }
}