Créer une connexion à l'aide du connecteur Java Cloud SQL

Ouvrez une connexion à Cloud SQL pour SQL Server à l'aide du connecteur Java Cloud SQL.

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Exemple de code

Java

Pour vous authentifier auprès de Cloud SQL pour SQL Server, configurez les Identifiants par défaut de l'application. Pour en savoir plus, consultez Configurer l'authentification pour un environnement de développement local. 


import com.zaxxer.hikari.HikariConfig;
import com.zaxxer.hikari.HikariDataSource;
import javax.sql.DataSource;

public class ConnectorConnectionPoolFactory extends ConnectionPoolFactory {

  // Note: Saving credentials in environment variables is convenient, but not
  // secure - consider a more secure solution such as
  // Cloud Secret Manager (https://cloud.google.com/secret-manager) to help
  // keep secrets safe.
  private static final String INSTANCE_CONNECTION_NAME =
      System.getenv("INSTANCE_CONNECTION_NAME");
  private static final String DB_USER = System.getenv("DB_USER");
  private static final String DB_PASS = System.getenv("DB_PASS");
  private static final String DB_NAME = System.getenv("DB_NAME");

  public static DataSource createConnectionPool() {
    // The configuration object specifies behaviors for the connection pool.
    HikariConfig config = new HikariConfig();

    // The following is equivalent to setting the config options below:
    // jdbc:sqlserver://;user=<DB_USER>;password=<DB_PASS>;databaseName=<DB_NAME>;
    // socketFactoryClass=com.google.cloud.sql.sqlserver.SocketFactory;
    // socketFactoryConstructorArg=<INSTANCE_CONNECTION_NAME>

    // See the link below for more info on building a JDBC URL for the Cloud SQL JDBC Socket Factory
    // https://github.com/GoogleCloudPlatform/cloud-sql-jdbc-socket-factory#creating-the-jdbc-url

    // Configure which instance and what database user to connect with.
    config
        .setDataSourceClassName("com.microsoft.sqlserver.jdbc.SQLServerDataSource");
    config.setUsername(DB_USER); // e.g. "root", "sqlserver"
    config.setPassword(DB_PASS); // e.g. "my-password"
    config.addDataSourceProperty("databaseName", DB_NAME);

    config.addDataSourceProperty("socketFactoryClass",
        "com.google.cloud.sql.sqlserver.SocketFactory");
    config.addDataSourceProperty("socketFactoryConstructorArg", INSTANCE_CONNECTION_NAME);

    // The Java Connector provides SSL encryption, so it should be disabled
    // at the driver level.
    config.addDataSourceProperty("encrypt", "false");

    // cloudSqlRefreshStrategy set to "lazy" is used to perform a
    // refresh when needed, rather than on a scheduled interval.
    // This is recommended for serverless environments to
    // avoid background refreshes from throttling CPU.
    config.addDataSourceProperty("cloudSqlRefreshStrategy", "lazy");

    // ... Specify additional connection properties here.
    // ...

    // Initialize the connection pool using the configuration object.
    return new HikariDataSource(config);
  }
}

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