如何通过SSL与PostgreSQL数据库连接？

postgresql ssl java

2022-09-04 21:52:07

我已经创建了自己的证书和配置文件：postgresql.conf

...
#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，我允许我的服务器连接到我的数据库：pg_hba.conf

...
hostssl    postgres             postgres             XXX.XXX.XXX.XXX/0            md5
...

因此，我可以通过命令行连接到它：psql

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java应用程序打开与数据库的连接时，即使我提供了包含数据库证书的信任库，我也不会与它建立任何连接：

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, com.mchange.v2.resourcepool.BasicResourcePool@75fa1be3 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.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@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, com.mchange.v2.resourcepool.BasicResourcePool@75fa1be3 is interrupting all Threads waiting on a resource to check out. Will try again in response to new client requests.>

通过一切似乎工作正常，而不是与我的应用程序。有什么建议吗？psql

编辑：

我的文件：props.properties

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>

答案 1

url=jdbc:postgresql://<host_url_or_ip>:<port>/<db_name>?currentSchema=<schema_name>&sslmode=verify-ca&sslfactory=org.postgresql.ssl.DefaultJavaSSLFactory

注意：如果是，则不是必需的。但是端口即使是默认的，即5432，也必须提供它。schema_namepublic

对于 sslmode 值 ref：https://jdbc.postgresql.org/documentation/head/ssl-client.html 设置为启用验证。sslfactory=org.postgresql.ssl.DefaultJavaSSLFactory

对于非验证 SSL 连接，您可以使用sslfactory=org.postgresql.ssl.NonValidatingFactory

但请记住，启用 SSL 验证后，可能需要根 CA 证书。

您有以下各种选择（可能并不详尽，但这些选项对我有用。

您可以将其放在默认位置，即 ~/Postgres/root.crt OR
将 env 变量设置为其路径或PGSSLROOTCERT
导入到信任库中，并将其路径作为传递：。如果您使用的是缺省信任库，即 JRE 的这两个 env 变量是必需的。-Djavax.net.ssl.trustStore=[trust_store_path] -Djavax.net.ssl.trustStorePassword=[trust_store_password]cacerts

裁判：

https://jdbc.postgresql.org/documentation/head/ssl-client.html

https://www.postgresql.org/docs/9.0/libpq-ssl.html

答案 2

我相信也需要一个密钥库。由于 ssl=true 应该需要自签名证书的私钥。我还会添加“非验证SSLFactory”设置

?ssl=true&sslfactory=org.postgresql.ssl.NonValidatingFactory

此外，您的端口设置与不匹配。server_name:12345432

"parseUrl"是一个空错误，也许 JDBC url 中的某个变量设置不正确。