📄 register.java
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/*
* register.java
*
* Created on 2007年11月18日, 下午2:50
*/
package reg;
import java.io.*;
import java.net.*;
import dbpack.dbConnect;
import dbpack.Login;
import java.sql.SQLException;
import javax.servlet.*;
import javax.servlet.http.*;
/**
*
* @author weiyunbo
* @version
*/
public class register 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();
String userid;
String password;
String realname;
request.setCharacterEncoding("UTF-8");
userid=request.getParameter("userid");
password=request.getParameter("psw");
realname=request.getParameter("realname");
userid=userid.replace("'","''");
password=password.replace("'","''");
realname=realname.replace("'","''");
/* TODO output your page here
out.println("<html>");
out.println("<head>");
out.println("<title>Servlet register</title>");
out.println("</head>");
out.println("<body>");
out.println("<h1>Servlet register at " + request.getContextPath () + "</h1>");
out.println("</body>");
out.println("</html>");
*/
if(userid.equals("")||password.equals("")||realname.equals("")){
response.sendRedirect("index.jsp");
}else{
try {
dbConnect db=new dbConnect();
db.rs=db.sat.executeQuery("select * from member where userid='"+userid+"'");
if(db.rs.next()){
out.println("这个用户已存在");
return;
}else{
db.sat.executeUpdate("insert into member(userid,password,realname) values ('"+userid+"','"+password+"','"+realname+"')");
HttpSession session=request.getSession(true);
Login login=(Login)session.getAttribute("login");
db.rs=db.sat.executeQuery("select * from member where userid='"+userid+"'");
while(db.rs.next()){
if(db.rs.getString("password").equals(password)){
session.setAttribute("cartVector",new java.util.Vector());
login.setUserid(db.rs.getString("realname"));
login.setIsLogin(true);
}
}
db.doClose();
response.sendRedirect("index.jsp");
}
} catch (SQLException ex) {
ex.printStackTrace();
}
}
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>
}
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