package com.lzy.jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;

public class Demo06 {
	public static long str2Date(String dateStr) {//把传入的日期转变为long型返回
		DateFormat format=new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
		try {
			return format.parse(dateStr).getTime();
		} catch (ParseException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			return 0;
		}
	}
	public static void main(String[] args) {
		Connection conn=null;
		PreparedStatement ps=null;
		ResultSet rs = null;
		
		try {
			Class.forName("com.mysql.jdbc.Driver");
			conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/testjdbc", "root", "123456");
			
			ps=conn.prepareStatement("select * from t_user where regTime>? and regTime<?");
			java.sql.Date start=new java.sql.Date(str2Date("2020-11-15 12:12:12"));
			java.sql.Date end=new java.sql.Date(str2Date("2020-11-21 12:12:12"));
			ps.setObject(1, start);
			ps.setObject(2, end);
			
			rs=ps.executeQuery();
			while(rs.next()) {
				System.out.println(rs.getInt("id")+"---"+rs.getString("username")+"----"+rs.getDate("regTime"));
			}
			
		} catch (ClassNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			try {
				if(ps!=null){
					ps.close();
				}
			} catch (SQLException e) {
				e.printStackTrace();
			}
			try {
				if(conn!=null){
					conn.close();
				}
			} catch (SQLException e) {
				e.printStackTrace();
			}
		}
	}
}