selectaction.java

一个简单的表单的实现

package com.hygj.sunqi.j2ee.servlet;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import com.hygj.sunqi.j2ee.bean.SelectBean;
public class SelectAction extends HttpServlet {
  private ArrayList data = new ArrayList();
  private static final String CONTENT_TYPE = "text/html; charset=GBK";
  //Initialize global variables
  public void init() throws ServletException {
  }
  //Process the HTTP Get request
  public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
     String orderID = request.getParameter("orderID");
     HttpSession session = request.getSession();
     SelectBean sb = new SelectBean();
     sb.setEmployeeID(orderID);
     data = (ArrayList)sb.getData();
     if(data.size()>0){
       session.setAttribute("arr",data);
       response.sendRedirect("ShowDetails.jsp");
     }
     else{
       session.setAttribute("mess","没有查询结果，请重新查询！");
       response.sendRedirect("index.jsp");
     }
  }
  //Process the HTTP Post request
  public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    doGet(request, response);
  }
  //Clean up resources
  public void destroy() {
  }
}