如何修复“驱动程序无法使用安全套接字层(SSL)加密建立到SQL Server的安全连接”错误

Question

我正在尝试通过java连接MSSQL服务器2016。我使用JDK1.8和mssql-jdbc-7.2.1.jre8.jar文件。

public class ConnectToMSSQL {
    public static void main(String[] args) {
        String connectionURL = "jdbc:sqlserver://localhost:1433;databaseName=TestSQL;user=sa;password=password";
        try {
            Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
            Connection connection = DriverManager.getConnection(connectionURL);
            if (connection != null) {
                System.out.println("Connected");
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

在运行上述代码时，出现以下错误，如何解决此问题？

com.microsoft.sqlserver.jdbc.SQLServerException: The driver could not establish a secure connection to SQL Server by using Secure Sockets Layer (SSL) encryption. Error: "RSA premaster secret error". ClientConnectionId:8438be77-02cd-4d82-b84d-16c0045ac415
    at com.microsoft.sqlserver.jdbc.SQLServerConnection.terminate(SQLServerConnection.java:2887)
    at com.microsoft.sqlserver.jdbc.TDSChannel.enableSSL(IOBuffer.java:1881)
    at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(SQLServerConnection.java:2452)
    at com.microsoft.sqlserver.jdbc.SQLServerConnection.login(SQLServerConnection.java:2103)
    at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectInternal(SQLServerConnection.java:1950)
    at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(SQLServerConnection.java:1162)
    at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(SQLServerDriver.java:735)
    at java.sql.DriverManager.getConnection(Unknown Source)
    at java.sql.DriverManager.getConnection(Unknown Source)
    at database.ConnectToMSSQL.main(ConnectToMSSQL.java:12)
Caused by: javax.net.ssl.SSLKeyException: RSA premaster secret error
    at sun.security.ssl.RSAClientKeyExchange.<init>(Unknown Source)
    at sun.security.ssl.ClientHandshaker.serverHelloDone(Unknown Source)
    at sun.security.ssl.ClientHandshaker.processMessage(Unknown Source)
    at sun.security.ssl.Handshaker.processLoop(Unknown Source)
    at sun.security.ssl.Handshaker.process_record(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at com.microsoft.sqlserver.jdbc.TDSChannel.enableSSL(IOBuffer.java:1799)
    ... 8 more
Caused by: java.security.NoSuchAlgorithmException: SunTls12RsaPremasterSecret KeyGenerator not available
    at javax.crypto.KeyGenerator.<init>(KeyGenerator.java:169)
    at javax.crypto.KeyGenerator.getInstance(KeyGenerator.java:223)
    at sun.security.ssl.JsseJce.getKeyGenerator(Unknown Source)
    ... 18 more

Answer 1

现在一切正常。正如我所做的：在Eclipse中