版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/u011304490/article/details/84558684
import java.sql.*;
public class mytest {
public static void main(String[] args)
{
Connection con = null;
Statement createSM = null;
ResultSet rs = null;
try
{
//1、注册驱动
//DriverManager.registerDriver(new com.mysql.jdbc.Driver());
Class.forName("com.mysql.jdbc.Driver");//这句某版本后可以省略,会自动注册
//2、建立连接
con = DriverManager.getConnection("jdbc:mysql://localhost/myblog?useSSL=false","root","mysql");
//3、创建statement
createSM = con.createStatement();
//4、执行语句获得结果集
String sql = "select * from user;";
rs = createSM.executeQuery(sql);
//5、遍历结果集
while(rs.next())
{
int id = rs.getInt("id");
String name = rs.getString("name");
String pwd = rs.getString("pwd");
System.out.println("id:"+id+",name:"+name+",pwd:"+pwd);
}
}
catch (Exception e){}
finally
{
//6、关闭资源
try{
if(rs != null){
rs.close();
}
}
catch (SQLException e){}
try{
if(createSM != null){
createSM.close();
}
}
catch (SQLException e){}
try{
if(con != null){
con.close();
}
}
catch (SQLException e){}
}
}
}