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我遇到錯(cuò)誤代碼“java.sql.SQLNonTransientConnectionException：無法創(chuàng)建與數(shù)據(jù)庫服務(wù)器的連接”的問題。我正在嘗試使用 JDBC 與數(shù)據(jù)庫建立連接，憑據(jù)拼寫正確。您能幫我檢查一下這個(gè)項(xiàng)目中可能出現(xiàn)的問題嗎？

package com.example.daily.db;

import android.os.Bundle;

import androidx.appcompat.app.AppCompatActivity;

import com.example.daily.R;
import com.mysql.cj.protocol.Resultset;

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

public class controler extends AppCompatActivity {
    private controler controlador;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_tercera);
        controlador = new controler();
    }
    public static void micontroler (){

        String usuario = "root";
        String password = "Prueb@1";
        String url = "jdbc:mysql://localhost:3306/daily_db";
        Connection conexion;
        Statement statement;
        Resultset rs;

        try {
            Class.forName("com.mysql.cj.jdbc.Driver");
        } catch (ClassNotFoundException e) {
            throw new RuntimeException(e);
        }


        try {
            conexion = DriverManager.getConnection(url,usuario,password);
            statement = conexion.createStatement();
            statement.executeUpdate("INSERT INTO USUARIOS(EMAIL,NOMBRES,APELLIDOS,APODO,FECHA_NACIMIENTO) VALUES ('Teste','TESTn','TESTa','TESTp','14/06/22')");


        } catch (SQLException e) {
            throw new RuntimeException(e);
        }
    }
}

我檢查了連接，重寫了代碼，將控制器添加到了清單中。