请问这个代码哪里有问题？

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;

public class Test02 {
    public static void main(String[] args) {
        Statement stmt = null;
        Connection conn = null;
        try {
            //1.
            DriverManager.registerDriver(new com.mysql.jdbc.Driver());
            //2.
            String url ="jdbc:mysql://127.0.0.1:3306/linf";
            String user = "root";
            String password = "89399129";
            conn = DriverManager.getConnection(url, user, password);
            System.out.println("数据库连接对象" + conn);
            //3.
            stmt = conn.createStatement();
            //4.
            String sql = "insert from t_student where sex = 3";
            int count = stmt.executeUpdate(sql);
            System.out.println(count == 1 ? "保存成功" : "保存失败");
            //5.
        } catch (SQLException e) {
            e.printStackTrace();
        } finally {
            //6.
                try {
                    if (stmt != null) {
                        stmt.close();
                    }
                } catch (SQLException e) {
                    e.printStackTrace();
                }
                try {
                    if (conn != null) {
                        conn.close();
                    }
                } catch (SQLException e) {
                    e.printStackTrace();
                }
            }
    }
}

结果：

Loading class `com.mysql.jdbc.Driver'. This is deprecated. The new driver class is `com.mysql.cj.jdbc.Driver'. The driver is automatically registered via the SPI and manual loading of the driver class is generally unnecessary.
java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:129)
    at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122)
    at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:833)
    at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:453)
    at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
    at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
    at java.sql.DriverManager.getConnection(DriverManager.java:664)
    at java.sql.DriverManager.getConnection(DriverManager.java:247)
    at Test02.main(Test02.java:17)

Process finished with exit code 0

错误信息告诉你了呀，com.mysql.jdbc.Driver驱动程序已经不建议用了，账户或密码错误

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)

以后看到这个，就只有一种错误，数据库连接密码不对，不用想其它的。

您好，我是有问必答小助手，你的问题已经有小伙伴为您解答了问题，您看下是否解决了您的问题，可以追评进行沟通哦~

如果有您比较满意的答案 / 帮您提供解决思路的答案，可以点击【采纳】按钮，给回答的小伙伴一些鼓励哦～～

ps:问答VIP仅需29元，即可享受5次/月 有问必答服务，了解详情>>>https://vip.csdn.net/askvip?utm_source=1146287632