📄 bankservlet.java
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package org.accp.servlet;
import java.util.List;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import org.accp.DAO.*;
import org.accp.Entity.CustomerBean;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
public class BankServlet extends HttpServlet {
/**
* Constructor of the object.
*/
public BankServlet() {
super();
}
/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
/**
* The doGet method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to get.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=gbk");
HttpSession session=request.getSession(true);
List<CustomerBean> customerlist=new ArrayList();
CustomerBean customer=new CustomerBean();
BankModle bankmodle=new BankModle();
customerlist=bankmodle.getCustomers();
String userID=request.getParameter("id");
for(int i=0;i<customerlist.size();i++){
if(customerlist.get(i).getUserID().equals(userID)){
customer=customerlist.get(i);
session.setAttribute("customer", customer);
}
}
double balance=bankmodle.getall(userID);
System.out.println(balance);
if(balance<0){
request.getRequestDispatcher("NegativeBalance.jsp").forward(request, response);
}else if(balance>0 && balance<100000){
request.getRequestDispatcher("NormalBalance.jsp").forward(request, response);
}else if(balance>=100000){
request.getRequestDispatcher("HighBalance.jsp").forward(request, response);
}else{
request.getRequestDispatcher("Error.jsp").forward(request, response);
}
}
/**
* The doPost method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to post.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out
.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
out.println("<HTML>");
out.println(" <HEAD><TITLE>A Servlet</TITLE></HEAD>");
out.println(" <BODY>");
out.print(" This is ");
out.print(this.getClass());
out.println(", using the POST method");
out.println(" </BODY>");
out.println("</HTML>");
out.flush();
out.close();
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occure
*/
public void init() throws ServletException {
// Put your code here
}
}
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