mysql简单数据库连接

package connect;

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.ResultSet;

import java.sql.SQLException;

import java.sql.Statement;

public class Connect {

public static void main(String[] args) {

try {

Class.forName(“com.mysql.jdbc.Driver”);

String url=”jdbc:mysql://localhost:3306/kaoshi”;//kaoshi是自己的数据库

Connection conn=DriverManager.getConnection(url, “root”, “admin”);//自己的用户名和密码

System.out.println(“数据库连接成功”);

Statement stm=conn.createStatement();

String sql=”select * from tab_student”;

ResultSet rs=stm.executeQuery(sql);

while(rs.next()){

System.out.println(“姓名:”+rs.getString(“stu_name”)+” 年龄：”+rs.getInt(“stu_age”));

rs.close;

stmt.close();

conn.close();

}

} catch (ClassNotFoundException e) {

e.printStackTrace();

} catch (SQLException e) {

e.printStackTrace();

}finally{

try {

if (stmt!=null) stmt.close();

} catch (SQLException se2) {

}

try {

if (conn!=null) conn.close();

} catch (SQLException se) {

se.printStackTrace();

}

}

System.out.println(“拜拜！”);

}

}