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구글 클라우드 SQL 데이터베이스를 사용하여 이클립스에서 내 데이터베이스에 연결하는 데 문제가 있습니다. mysql 명령 줄을 통해 데이터베이스에 액세스했지만 eclise에서 데이터베이스에 액세스하는 데 성공했습니다.자바 이클립스를 통해 Google 클라우드 SQL에 연결할 수 없습니다.
내 코드 :
String instanceConnectionName = "****";
String databaseName = "****";
String username = "***";
String password = "***";
String jdbcUrl = String.format(
"jdbc:mysql://google/%s?cloudSqlInstance=%s&"
+ "socketFactory=com.google.cloud.sql.mysql.SocketFactory",
databaseName,
instanceConnectionName);
Connection connection = DriverManager.getConnection(jdbcUrl, username, password);
내가 오류 :
jdbc:mysql://google/****?cloudSqlInstance=****e&socketFactory=com.google.cloud.sql.mysql.SocketFactory
May 03, 2017 10:53:07 AM com.google.cloud.sql.mysql.SocketFactory connect
INFO: Connecting to Cloud SQL instance [****].
May 03, 2017 10:53:07 AM com.google.cloud.sql.mysql.SslSocketFactory getInstance
INFO: First Cloud SQL connection, generating RSA key pair.
Exception in thread "main" com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server.
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:404)
at com.mysql.jdbc.Util.getInstance(Util.java:387)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:917)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:896)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:885)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:860)
at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2332)
at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2085)
at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:795)
at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:44)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:404)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:400)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:327)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at neviTracker.program.ProgramConnections.main(ProgramConnections.java:27)
Caused by: java.lang.RuntimeException: Unable to obtain credentials to communicate with the Cloud SQL API
at com.google.cloud.sql.mysql.SslSocketFactory$ApplicationDefaultCredentialFactory.create(SslSocketFactory.java:545)
at com.google.cloud.sql.mysql.SslSocketFactory.getInstance(SslSocketFactory.java:138)
at com.google.cloud.sql.mysql.SocketFactory.connect(SocketFactory.java:47)
at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:298)
at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2253)
at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2286)
... 13 more
Caused by: java.io.IOException: The Application Default Credentials are not available. They are available if running on Google App Engine, Google Compute Engine, or Google Cloud Shell. Otherwise, the environment variable GOOGLE_APPLICATION_CREDENTIALS must be defined pointing to a file defining the credentials. See https://developers.google.com/accounts/docs/application-default-credentials for more information.
at com.google.api.client.googleapis.auth.oauth2.DefaultCredentialProvider.getDefaultCredential(DefaultCredentialProvider.java:98)
at com.google.api.client.googleapis.auth.oauth2.GoogleCredential.getApplicationDefault(GoogleCredential.java:213)
at com.google.api.client.googleapis.auth.oauth2.GoogleCredential.getApplicationDefault(GoogleCredential.java:191)
at com.google.cloud.sql.mysql.SslSocketFactory$ApplicationDefaultCredentialFactory.create(SslSocketFactory.java:543)
... 18 more
귀하의 MySQL 서비스가 정상적으로 작동하고 있는지 확인 했습니까? – patateskafa
예 @patateskafa –