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我已经创建了自己的证书和配置postgresql.conf文件：如何通过SSL连接PostgreSQL数据库？
...
#authentication_timeout = 1min # 1s-600s
ssl = true # (change requires restart)
ssl_ciphers = 'HIGH:MEDIUM:+3DES:!aNULL' # allowed SSL ciphers
# (change requires restart)
#ssl_prefer_server_ciphers = on # (change requires restart)
#ssl_ecdh_curve = 'prime256v1' # (change requires restart)
ssl_cert_file = '/etc/ssl/certs/company/database/certificate' # (change requires restart)
ssl_key_file = '/etc/ssl/certs/company/database/key' # (change requires restart)
ssl_ca_file = '/usr/share/ca-certificates/company/ca/certificate' # (change requires restart)
#ssl_crl_file = '' # (change requires restart)
#password_encryption = on
#db_user_namespace = off
#row_security = on
...
然后，我让我的服务器与我的数据库连接，pg_hba.conf：
...
hostssl postgres postgres XXX.XXX.XXX.XXX/0 md5
...
所以，我可以通过psql连接到它命令行：
psql (9.5.3)
SSL connection (protocol: TLSv1.2, cipher: ECDHE-RSA-AES256-GCM-SHA384, bits: 256, compression: off)
Type "help" for help.
postgres=#
但是，当我尝试通过我的jav打开与数据库的连接一个应用程序，甚至当我提供信任与我的数据库证书包括，我不断收到与它没有关系：
mvn package -Djavax.net.ssl.trustStore=/opt/app/truststore -Djavax.net.ssl.trustStorePassword=changeit
例外：
2016-05-23 16:28:32,900 WARN [com.mchange.v2.resourcepool.BasicResourcePool] - <Having failed to acquire a resource, [email protected] is interrupting all Threads waiting on a resource to check out. Will try again in response to new client requests.>
2016-05-23 16:28:32,900 WARN [com.mchange.v2.resourcepool.BasicResourcePool] - <com[email protected]2be057bf -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception: >
java.lang.NullPointerException
at org.postgresql.Driver.parseURL(Driver.java:532)
at org.postgresql.Driver.acceptsURL(Driver.java:431)
at java.sql.DriverManager.getDriver(DriverManager.java:299)
at com.mchange.v2.c3p0.DriverManagerDataSource.driver(DriverManagerDataSource.java:285)
at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:161)
at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:161)
at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:147)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:202)
at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1138)
at com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1125)
at com.mchange.v2.resourcepool.BasicResourcePool.access$700(BasicResourcePool.java:44)
at com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1870)
at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:696)
2016-05-23 16:28:32,901 WARN [com.mchange.v2.resourcepool.BasicResourcePool] - <Having failed to acquire a resource, [email protected] is interrupting all Threads waiting on a resource to check out. Will try again in response to new client requests.>
通过psql似乎一切都工作正常，不与我的申请。 有什么建议吗？
编辑：
我props.properties文件：
uatDb.user=postgres
uatDb.password=password
uatDb.driverClass=org.postgresql.Driver
uatDb.jdbcUrl=jdbc:postgresql://<server_name>:1234/uat?ssl=true
uatDb.port=5443
uatDb.name=uat
uatDb.host=<server_name>
发布您的Java代码。你是否设置SSL的连接属性？请参阅https://jdbc.postgresql.org/documentation/head/connect.html –
@AndrewHenle是的，我已经在文件上设置了此连接的属性。我编辑了我的问题。我通过'maven'调用我的数据库来构建我的应用程序，以访问我的数据库以进行一些测试。 –
假设您的连接工程未启用SSL，您能否在MAVEN_OPTS中设置'-Djavax.net.debug = all'以获取Java连接调试数据？见http://stackoverflow.com/questions/2007192/maven-jetty-plugin-how-to-control-vm-arguments（我不是Maven大师......） –