我正在尝试使用 Java over SSL 连接到 MySQL 服务器。我收到以下异常：
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Cannot connect to MySQL server on www.mysite.com:3306.
Make sure that there is a MySQL server running on the machine/port you are trying to connect to and that the machine this software is running on is able to connect to this host/port (i.e. not firewalled). Also make sure that the server has not been started with the --skip-networking flag.
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:407)
at com.mysql.jdbc.Util.getInstance(Util.java:382)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1013)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:987)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:982)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:927)
at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:827)
at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
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:407)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:378)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:305)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.UnsupportedOperationException: The method shutdownInput() is not supported in SSLSocket
at sun.security.ssl.BaseSSLSocketImpl.shutdownInput(Unknown Source)
at com.mysql.jdbc.MysqlIO.forceClose(MysqlIO.java:506)
at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2404)
at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2163)
at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:794)
... 25 more
这是我的代码：
properties = new Properties();
properties.put("user", "myuser");
properties.put("password", "mypassword");
properties.put("useSSL", "true");
System.setProperty("javax.net.ssl.keyStore", "keystore.jks");
System.setProperty("javax.net.ssl.keyStorePassword", "keystorepass");
System.setProperty("javax.net.ssl.trustStore", "truststore.jks");
System.setProperty("javax.net.ssl.trustStorePassword", "truststorepass");
connection = DriverManager.getConnection("jdbc:mysql://www.mysite.com:3306/mydatabase", properties);
Details
密钥库和信任库创建
我生成了密钥库和信任库，如下所示：
openssl pkcs12 -export -inkey client-key.pem -in client-cert.pem > keystore.p12
keytool -importkeystore -srckeystore keystore.p12 -srcstoretype pkcs12 -destkeystore keystore.jks -deststoretype JKS
openssl x509 -outform der -in ca.pem -out ca.der
keytool -import -file ca.der -alias myCA -keystore truststore.jks
证书原件
这是我的证书列表：
- ca.pem
- 客户端密钥.pem
- 客户端证书.pem
- 服务器密钥.pem
- 服务器证书.pem
不使用 SSL 进行连接
下面的代码工作正常，只是为了演示我可以用Java连接到MySQL服务器：
properties = new Properties();
properties.put("user", "myuser");
properties.put("password", "mypassword");
connection = DriverManager.getConnection("jdbc:mysql://www.mysite.com:3306/mydatabase", properties);
在命令行上使用 MySQL 时可以通过 SSL 连接
我使用以下命令启动 MySQL 服务器：
mysqld --ssl-ca=ca.pem --ssl-cert=server-cert.pem --ssl-key=server-key.pem
然后我使用 MySQL 命令连接到它：
mysql --host=www.mysite.com --user=myuser --password=mypassword --database=mydatabase --ssl-ca=ca.pem --ssl-cert=client-cert.pem --ssl-key=client-key.pem
这有效，查询后SHOW STATUS LIKE 'Ssl_cipher'我得到正确的结果：
+---------------+--------------------+
| Variable_name | Value |
+---------------+--------------------+
| Ssl_cipher | DHE-RSA-AES256-SHA |
+---------------+--------------------+
