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我在使用https://github.com/impossibl/pgjdbc-ng/连接到 Postgres 数据库时遇到了很大的问题。我需要这个库，因为我需要从数据库中获取异步通知。

我正在尝试使用 SSL 连接到远程数据库，我正在这样做：

Class.forName("com.impossibl.postgres.jdbc.PGDriver");

String url = "jdbc:pgsql://host:5432/db"
                        + "?ssl.mode=Require";
Connection conn = DriverManager.getConnection(url, "username", "pwd");

但是，当我尝试这样做时，我得到一个IllegalStateException. 这是堆栈跟踪：

java.sql.SQLException: Connection Error: java.lang.IllegalStateException
 at com.impossibl.postgres.jdbc.ConnectionUtil.createConnection(ConnectionUtil.java:189)
 at com.impossibl.postgres.jdbc.PGDriver.connect(PGDriver.java:77)
 at com.impossibl.postgres.jdbc.PGDriver.connect(PGDriver.java:52)
 at java.sql.DriverManager.getConnection(DriverManager.java:179)
 at it.polito.mobile.testpostgres.MainActivity$1.doInBackground(MainActivity.java:60)
 at it.polito.mobile.testpostgres.MainActivity$1.doInBackground(MainActivity.java:35)
 at android.os.AsyncTask$2.call(AsyncTask.java:288)
 at java.util.concurrent.FutureTask.run(FutureTask.java:237)
 at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
 at java.lang.Thread.run(Thread.java:818)
 Caused by: java.io.IOException: java.lang.IllegalStateException
 at com.impossibl.postgres.protocol.v30.ProtocolFactoryImpl.translateConnectionException(ProtocolFactoryImpl.java:285)
 at com.impossibl.postgres.protocol.v30.ProtocolFactoryImpl.connect(ProtocolFactoryImpl.java:199)
 at com.impossibl.postgres.protocol.v30.ProtocolFactoryImpl.connect(ProtocolFactoryImpl.java:90)
 at com.impossibl.postgres.system.BasicContext.<init>(BasicContext.java:130)
 at com.impossibl.postgres.jdbc.PGConnectionImpl.<init>(PGConnectionImpl.java:185)
 at com.impossibl.postgres.jdbc.ConnectionUtil.createConnection(ConnectionUtil.java:180)
 ... 11 more
 Caused by: java.lang.IllegalStateException
 at io.netty.handler.ssl.SslHandler$LazyChannelPromise.executor(SslHandler.java:1491)
 at io.netty.util.concurrent.DefaultPromise.checkDeadLock(DefaultPromise.java:388)
 at io.netty.util.concurrent.DefaultPromise.awaitUninterruptibly(DefaultPromise.java:283)
 at io.netty.util.concurrent.DefaultPromise.syncUninterruptibly(DefaultPromise.java:225)
 at io.netty.util.concurrent.DefaultPromise.syncUninterruptibly(DefaultPromise.java:32)
 at com.impossibl.postgres.protocol.v30.ProtocolFactoryImpl.connect(ProtocolFactoryImpl.java:132)
 ... 15 more

之前，我使用的是标准库org.postgresql.Driver，一切正常......

有人知道如何帮助我吗？

太感谢了！马可

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0 回答 0