代码：
import java.sql.*;
public class java1_1 {
public static void main(String[] args) throws SQLException, ClassNotFoundException {
//注册驱动
Class.forName("com.mysql.cj.jdbc.Driver");
//创建连接
Connection conn=DriverManager.getConnection
("jdbc:mysql://localhost/test2? useSSL=FALSE&serverTimezone=UTC","root","#C66ahren66sq"); //test2为数据库的名字
//得到执行sql语句的Statement对象
Statement stmt=conn.createStatement();
//执行sql语句，并返回结果
ResultSet rs=stmt.executeQuery("select * from test2_1");
//处理结果
while (rs.next()) {
for (int i = 1; i <= 3; i++) { //3表示有几个键
System.out.print(rs.getString(i) + "t");
}
System.out.println();
}
//关闭资源
rs.close();
stmt.close();
conn.close();
}
}
