registerbean.java~20~

本软件简单的实现的对商店的管理

package eshop;
import java.util.*;
import java.sql.*;

public class registerBean {
  Connection conn;
  boolean registerResult;

  public registerBean() {
    registerResult=false;
  }

  public void setConn(Connection conn){
    this.conn=conn;
  }

  public boolean register(String Username,String Password,String Question,String Answer){
    try {
      Statement stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,
                                        ResultSet.CONCUR_READ_ONLY);
  String sql1="SELECT * FROM Customers WHERE Username='"+username+"'";
  ResultSet rsLogin=stmt.executeQuery(sql1);
  if(rsLogin.next()){
          this.registerResult=false;
  }else{
          String sql2="INSERT INTO Customers(Username,Password,Question,Answer) VALUES('"+username+"','"+password+"','"+question+"','"+answer+"')";
          stmt.executeUpdate(sql2);
          response.sendRedirect("registerOK.jsp");
  }

  rsLogin.close();
  stmt.close();
}catch(SQLException e){
  e.printStackTrace();
}
return checkResult;
}

  }
}