c3p0和Heroku postgres，SSL問題

Question

更新

無法連接到postgres數據庫。 postgres的依賴性是通過maven添加的。

Maven依賴

<dependency>
 <groupId>postgresql</groupId>
 <artifactId>postgresql</artifactId>
 <version>9.1-901-1.jdbc4</version>
</dependency>

Postgres池

public class PostgresDB implements DBPool {
public PostgresDB()  {
}

private static ComboPooledDataSource comboPooledDataSource = new ComboPooledDataSource();

static {
    try {
        Properties props = new Properties();
        props.setProperty("ssl", "false");
        comboPooledDataSource.setDriverClass( "org.postgresql.Driver" );
        comboPooledDataSource.setJdbcUrl("jdbc:postgresql://ec2-79-125-4-72.eu-west-1.compute.amazonaws.com:5432/d35hi5u7rnue7f");
        comboPooledDataSource.setUser("user");
        comboPooledDataSource.setPassword("xxxxxxxx");
        comboPooledDataSource.setProperties(props);
    } catch (Exception e) {
        System.out.println("Error");
        // handle the exception
    }
}

public Connection getConnection() throws SQLException {
    return comboPooledDataSource.getConnection();
}
}

獲取連接的代碼

Connection connection = PostgresDB.getConnection();

錯誤

警告：com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@2326357e - 獲取嘗試失敗!!! 清除待處理的收購。 在嘗試獲取所需的新資源時，我們未能成功超過允許的最大獲取嘗試次數（30）。 上次獲取嘗試異常：org.postgresql.util.PSQLException：Der Verbindungsversuch schlug fehl。 at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl（ConnectionFactoryImpl.java:152）org.postgresql.core.ConnectionFactory.openConnection（ConnectionFactory.java:66）at org.postgresql.jdbc2.AbstractJdbc2Connection。（AbstractJdbc2Connection.java： 125）org.postgresql.jdbc3.AbstractJdbc3Connection。（AbstractJdbc3Connection.java:30）org.postgresql.jdbc3g.AbstractJdbc3gConnection。（AbstractJdbc3gConnection.java:22）at org.postgresql.jdbc4.AbstractJdbc4Connection。（AbstractJdbc4Connection.java:32） at org.postgresql.jdbc4.Jdbc4Connection。（Jdbc4Connection.java:24）atg.postgresql.Driver.makeConnection（Driver.java:393）atg.postgresql.Driver.connect（Driver.java:267）at com.mchange .v2.c3p0.DriverManagerDataSource.getConnection（DriverManagerDataSource.java:119）位於com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection（WrapperConnectionPoolDataSource.java:143）com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection（WrapperConnectionPoolDataS） source.java:132）com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool $ 1PooledConnectionResourcePoolManager.acquireResource（C3P0PooledConnectionPool.java:137）at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire（BasicResourcePool.java:1014）at com .mchange.v2.resourcepool.BasicResourcePool.access $ 800（BasicResourcePool.java:32）at com.mchange.v2.resourcepool.BasicResourcePool $ AcquireTask.run（BasicResourcePool.java:1810）at com.mchange.v2.async.ThreadPoolAsynchronousRunner $ PoolThread.run（ThreadPoolAsynchronousRunner.java:547）引起：javax.net.ssl.SSLHandshakeException：PKIX路徑構建失敗：sun.security.provider.certpath.SunCertPathBuilderException：無法在java.base /中找到所請求目標的有效證書路徑位於java.base / sun.security.ssl.TransportContext的java.base / sun.security.ssl.TransportContext.fatal（TransportContext.java:321）中的sun.security.ssl.Alert.createSSLException（Alert.java:128）。 java.base / sun.security.ssl.TransportCo上的致命（TransportContext.java:264） ntext.fatal（TransportContext.java:259）位於java.base / sun.security.ssl.CertificateMessage $ T12CertificateConsumer.checkServerCerts（CertificateMessage.java:642），位於java.base / sun.security.ssl.CertificateMessage $ T12CertificateConsumer.onCertificate（ CertificateMessage.java:461）java.base / sun.security.ssl.CertificateMessage $ T12CertificateConsumer.consume（CertificateMessage.java:361）at java.base / sun.security.ssl.SSLHandshake.consume（SSLHandshake.java:392） java.base / sun.security上java.base / sun.security.ssl.HandshakeContext.dispatch（HandshakeContext.java:444）的java.base / sun.security.ssl.HandshakeContext.dispatch（HandshakeContext.java:421） .ssl.TransportContext.dispatch（TransportContext.java:178）位於java.base / sun.security.ssl.SSLTransport.decode（SSLTransport.java:164）java.base / sun.security.ssl.SSLSocketImpl.decode（SSLSocketImpl） .java：1152）在java.base / sun.security.ssl.SSLSocketImpl.readHandshakeRecord（SSLSocketImpl.java:1063）java.base / sun.security.ssl.SSLSocketImpl.startHandshake （SSLSocketImpl.java:402）java.base / sun.security.ssl.SSLSocketImpl.ensureNegotiated（SSLSocketImpl.java:716）at java.base / sun.security.ssl.SSLSocketImpl $ AppOutputStream.write（SSLSocketImpl.java:970） ）java.base / java.io.BufferedOutputStream.flushBuffer（BufferedOutputStream.java:81）at java.base / java.io.BufferedOutputStream.flush（BufferedOutputStream.java:142）at org.postgresql.core.PGStream.flush（ PGStream.java:523）org.postgresql.core.v3.ConnectionFactoryImpl.sendStartupPacket（ConnectionFactoryImpl.java:259）at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl（ConnectionFactoryImpl.java:105）... 16更多引起by：sun.security.validator.ValidatorException：PKIX路徑構建失敗：sun.security.provider.certpath.SunCertPathBuilderException：無法在java.base / sun.security.validator.PKIXValidator.doBuild（PKIXValidator）中找到所請求目標的有效證書路徑.java：385）at java.base / sun.security.validator.PKIXValidator.engineValidate（PKIXValidator.java:290） java.base / sun.security上java.base / sun.security.validator.Validator.validate（Validator.java:264）的java.base / sun.security.ssl.X509TrustManagerImpl.validate（X509TrustManagerImpl.java:321） .ssl.X509TrustManagerImpl.checkTrusted（X509TrustManagerImpl.java:221）位於java.base / sun.security.ssl.X509TrustManagerImpl.checkServerTrusted（X509TrustManagerImpl.java:129），位於java.base / sun.security.ssl.CertificateMessage $ T12CertificateConsumer.checkServerCerts （CertificateMessage.java:626）... 33更多引起：sun.security.provider.certpath.SunCertPathBuilderException：無法在java.base / sun.security.provider.certpath.SunCertPathBuilder.build找到所請求目標的有效證書路徑（SunCertPathBuilder.java:141）位於java.base / java.security.cert.CertPathBuilder.build的java.base / sun.security.provider.certpath.SunCertPathBuilder.engineBuild（SunCertPathBuilder.java:126）（CertPathBuilder.java:297） ）在java.base / sun.security.validator.PKIXValidator.doBuild（PKIXValidator.java:380）... 39更多

固定

如果您遇到同樣的問題，請將代碼更改為：

comboPooledDataSource.setJdbcUrl("jdbc:postgresql://url:port/database");

Properties props = new Properties();
props.setProperty("sslmode", "require");
props.setProperty("ssl", "true");
props.setProperty("sslfactory", "org.postgresql.ssl.NonValidatingFactory");
props.setProperty("user", "username");
props.setProperty("password", "xxxxxxx");
comboPooledDataSource.setProperties(props);

Answer 1

而不是props.setProperty("ssl", "false"); 嘗試：

props.setProperty("sslmode", "disable");

有關更多信息，請參閱Heroku 關於使用Java連接到 Heroku上的關系數據庫的文檔。