修改密码的DAO部分

package org.lxh.mvcdemo.dao.impl;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;

import org.lxh.mvcdemo.dao.IUserDAO;
import org.lxh.mvcdemo.vo.User;

public class UserDAOImpl implements IUserDAO{
    private Connection conn = null;
    private PreparedStatement pstmt = null;
    public UserDAOImpl(Connection conn){
        this.conn = conn;
    }

    public boolean findLogin(User user) throws Exception {
        boolean flag = false;
        try{
            String sql = "SELECT name FROM user WHERE userid=? AND password=?";
            this.pstmt = this.conn.prepareStatement(sql);
            this.pstmt.setString(1, user.getUserid());
            this.pstmt.setString(2, user.getPassword());
            ResultSet rs = this.pstmt.executeQuery();
            if(rs.next()){
                user.setName(rs.getString(1));
                flag = true;
            }
        }catch(Exception e){
            throw e;
        }finally{
            if(this.pstmt != null){
                try{
                    this.pstmt.close();
                }catch(Exception e){
                    throw e;
                }
            }
        }
        return flag;
    }

    public boolean resetPassword(String password) throws Exception {
        
        boolean flag01 = true;    
        String sql = "update user set password='jjjj' where userid='admin'";
        this.pstmt = this.conn.prepareStatement(sql);
        if(this.pstmt.executeUpdate()>0){
            flag01 = true;
        }
        this.pstmt.close();
        return flag01;
    }
}