📄 wangyingzhuce.java
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package pp;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.*;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class WangYingZhuCe extends HttpServlet {
/**
* Constructor of the object.
*/
public WangYingZhuCe() {
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=gb2312");
PrintWriter out = response.getWriter();
dbconn conn=new dbconn();
ResultSet rs=null;
String accountNum=new String(request.getParameter("accountNum").getBytes("ISO8859_1"));
String accpasswd=new String(request.getParameter("accpasswd").getBytes("ISO8859_1"));
String username=new String(request.getParameter("username").getBytes("ISO8859_1"));
String PASSWORD1=new String(request.getParameter("PASSWORD1").getBytes("ISO8859_1"));
String PHOTOIDTYPE=new String(request.getParameter("PHOTOIDTYPE").getBytes("ISO8859_1"));
String PHOTOIDNUMBER=new String(request.getParameter("PHOTOIDNUMBER").getBytes("ISO8859_1"));
String sql="select PASSWORD,WWW from ACCOUNT where ACCOUNTNUMBER='"+accountNum+"'";
String sql1="select USERNAME from BANKCUSTOMER where USERNAME='"+username+"'";
try {
rs=conn.executeQuery(sql);
if(rs.next()==true){
if(rs.getString("PASSWORD").equals(accpasswd)){
if(rs.getString("WWW").equals("是")){
out.print("<script language='javascript'>");
out.print("alert('该帐户已开通网银');");
out.print("history.go(-1);");
out.print("</script>");
}else{
rs=conn.executeQuery(sql1);
if(rs.next()==true){
out.print("<script language='javascript'>");
out.print("alert('该用户名已存在,请重新输入');");
out.print("history.go(-1);");
out.print("</script>");
}else{
String sq="insert into BANKCUSTOMER values('"+accountNum+"','"+username+"','"+PASSWORD1+"','"+PHOTOIDTYPE+"','"+PHOTOIDNUMBER+"')";
conn.executeUpdate(sq);
conn.executeUpdate("update ACCOUNT set www='是' where ACCOUNTNUMBER='"+accountNum+"'");
out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
out.println("<HTML>");
out.println(" <HEAD><TITLE>A Servlet</TITLE>");
out.println("</HEAD>");
out.println(" <BODY>");
out.println("操作已成功！<BR>");
out.println(" </BODY>");
out.println("</HTML>");
}
}
}else{
out.print("<script language='javascript'>");
out.print("alert('帐号密码不正确!');");
out.print("history.go(-1);");
out.print("</script>");
}
}else{
out.print("<script language='javascript'>");
out.print("alert('该帐户不存在');");
out.print("history.go(-1);");
out.print("</script>");
}
conn.closeConn();
}catch(Exception e){
e.printStackTrace();
}
}
/**
* 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 {
doGet(request,response);
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occure
*/
public void init() throws ServletException {
// Put your code here
}
}
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