![]() The default is to connect to a database with the same name The port number the server is listening on. These properties may be specified in either the connection Of additional properties which can be used to specify additional driver behaviour In addition to the standard connection parameters the driver supports a number The DriverManager.getConnection() method:Ĭonnection db = DriverManager.getConnection(url, username, password) To connect, you need to get a Connection instance from JDBC. If a property is specified both in URL and in Properties object, the value from The following examples illustrate the use of both methods to establish a SSL URL or an additional Properties object parameter to DriverManager.getConnection. String url = "jdbc:postgresql://localhost/test" Properties props = new Properties () props. setProperty ( "password", "secret" ) props. setProperty ( "ssl", "true" ) Connection conn = DriverManager. getConnection ( url, props ) String url = "jdbc:postgresql://localhost/test?user=fred&password=secret&ssl=true" Connection conn = DriverManager. The database user on whose behalf the connection is being made. Specify 'options' connection initialization parameter. For example setting this to -c statement_timeout=5min would set the statement timeout parameter for this session to 5 minutes. The value of this property may contain spaces or other special characters,Īnd it should be properly encoded if provided in the connection URL. SpacesĪre considered to separate command-line arguments, unless escaped withĪ backslash ( \) \\ represents a literal backslash. Properties props = new Properties () props. setProperty ( "options", "-c search_path=test,public,pg_catalog -c statement_timeout=90000" ) Connection conn = DriverManager. getConnection ( url, props ) String url = "jdbc:postgresql://localhost:5432/postgres?options=-c%20search_path=test,public,pg_catalog%20-c%20statement_timeout=90000" Connection conn = DriverManager. The server must have been compiled with SSL support. ![]() This property does not need a value associated with it. Setting up the certificates and keys for ssl connection can be tricky see The test documentation for detailed examples. The provided value is a class name to use as the SSLSocketFactory whenĮstablishing a SSL connection. For more information see the sectionĬalled “Custom SSLSocketFactory”. This value is an optional argument to the constructor of the sslfactoryĬlass provided above. require, allow and prefer all default to a non validating SSL factory and do not check the Possible values include disable, allow, prefer, require, verify-ca and verify-full For more information see the section called “Custom SSLSocketFactory”. verify-full will validate that the certificate is correct and verify the verify-ca validates the certificate, but does not Validity of the certificate or the host name. Setting these will necessitate storing the server certificate on the client machine see Host connected to has the same hostname as the certificate. Provide the full path for the certificate file. It can be a PEM encoded X509v3 certificate Defaults to /defaultdir/postgresql.crt, where defaultdir is $/.postgresql/ in *nix systems and %appdata%/postgresql/ on windows. ![]() Note: This parameter is ignored when using PKCS-12 keys, since in that case the certificate is also retrieved from the same keyfile. Openssl pkcs8 -topk8 -inform PEM -in postgresql.key -outform DER -out postgresql.pk8 -v1 PBE-MD5-DES A PEM key can be converted to DER format using the openssl command: Note: The key file must be in PKCS-12 or in PKCS-8 DER format. PKCS-12 key files are only recognized if they have the ".p12" (42.2.9+) or the ".pfx" (42.2.16+) extension. If your key has a password, provide it using the sslpassword connection parameter described below. Otherwise, you can add the flag -nocrypt to the above command to prevent the driver from requesting a password. Note: The use of -v1 PBE-MD5-DES might be inadequate in environments where high level of security is needed and the key is not protectedīy other means (e.g. access control of the OS), or the key file is transmitted in untrusted channels. The solution documented here is known to work at We are depending on the cryptography providers provided by the java runtime.
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