Java连接mysql的程序

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package com.ytu.DBTest;import java.sql.DriverManager;import java.sql.ResultSet;import com.mysql.jdbc.*;public class Test {public static void main(String[] args) {String url = "jdbc:mysql://127.0.0.1:3306/student";try {Class.forName("com.mysql.jdbc.Driver");Connection conn = (Connection) DriverManager.getConnection(url, "root", "123456");Statement sql = (Statement) conn.createStatement();ResultSet rs = sql.executeQuery("select * from info");while(rs.next()) {//System.out.println(rs.getString(3));System.out.println(rs.getObject(1));}System.out.println("Successfull!!");} catch (Exception e) {System.out.println("Link Error");e.printStackTrace();}}}