我正在嘗試連接到谷歌云實(shí)例，但遇到了一些麻煩。我很感激幫助找到最簡(jiǎn)單的方法。我也是使用數(shù)據(jù)庫(kù)和 Java 的新手。這是我的代碼：package com.google.cloud.sql.mysql;import java.io.IOException;import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;/*** A sample app that connects to a Cloud SQL instance and lists all available tables in a database. */public class example{  public static void main(String[] args) throws IOException, SQLException {// TODO: fill this in// The instance connection name can be obtained from the instance overview page in Cloud Console// or by running "gcloud sql instances describe <instance> | grep connectionName".String instanceConnectionName = "eco-codex-216813:asia-southeast1:instance1";// TODO: fill this in// The database from which to list tables.String databaseName = "mysql";String username = "root";// TODO: fill this in// This is the password that was set via the Cloud Console or empty if never set// (not recommended).String password = "1412";//[START doc-example]String jdbcUrl = String.format(    "jdbc:mysql://google/%s?cloudSqlInstance=%s"        + "&socketFactory=com.google.cloud.sql.mysql.SocketFactory&useSSL=false",    databaseName,    instanceConnectionName);Connection connection = DriverManager.getConnection(jdbcUrl, username, password);try (Statement statement = connection.createStatement()) {  ResultSet resultSet = statement.executeQuery("SHOW TABLES");  while (resultSet.next()) {    System.out.println(resultSet.getString(1));    }   }  }}