userinfo.java

音乐网站涉及到很多数据库查询

/*
 * UserInfo.java
 *
 * Created on 2008年7月10日, 下午1:28
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package serverBag;

import java.sql.*;
import publicBag.*;

/**
 *
 * @author Administrator
 */
public class UserInfo implements UpdateDB{
    private Connection con;
    //JavaBean属性
    private String userID;
    private String name;
    private String pw;
    private String question;
    private String answer;
    
    public String getUserID(){ return userID;}
    public void setUserID(String inUserID){ userID = inUserID;}
    public String getName(){return name;}
    public void setName(String inName){name = inName;}
    public String getPw(){return pw;}
    public void setPw(String inPw){pw = inPw;}    
    public String getQuestion(){return question;}
    public void setQuestion(String inQuestion){question = inQuestion;}    
    public String getAnswer(){return answer;}
    public void setAnswer(String inAnswer){answer = inAnswer;}        
    
    /** Creates a new instance of UserInfo */
    public UserInfo() {
        try
        {
            con = ConnectDB.connectMusicDB();            	
        }
        catch(Exception e)
        {
            e.printStackTrace();           
        }
    }
    public boolean validate()
    {
        try
        {            
            boolean res = false;
            PreparedStatement stat = con.prepareStatement("SELECT * FROM UserInfo WHERE cUserID=? AND cPassword=?");			
            stat.setString(1,userID);
            stat.setString(2,pw);            
            ResultSet resultSet = stat.executeQuery();
            res = resultSet.next();
            if(res)
            {
                this.setName(resultSet.getString("cName"));
            }
            return res;            
        }
        catch(Exception e)
        {
            e.printStackTrace();
            return false;
        } 
    }

    public boolean insertInfo() {
       try
        {            
            boolean res = false;
            PreparedStatement stat = con.prepareStatement("INSERT UserInfo VALUES(?,?,?,?,?)");			
            stat.setString(1,userID);
            stat.setString(2,pw);
            stat.setString(3,name);
            stat.setString(4,question);
            stat.setString(5,answer);
            int num = stat.executeUpdate();
            if(num > 0)
            {
                res = true;
            }
            return res;            
        }
        catch(Exception e)
        {
            e.printStackTrace();
            return false;
        } 
    }

    public boolean deleteInfo() {
        return false;
    }

    public boolean updateInfo() {
        return false;
    }
}