2.3. JDBC Driver
Presto can be accessed from Java using the JDBC driver.Download presto-jdbc-0.229.jar and add it to the class path of your Java application.
The driver is also available from Maven Central:
- <dependency>
- <groupId>com.facebook.presto</groupId>
- <artifactId>presto-jdbc</artifactId>
- <version>0.229</version>
- </dependency>
Connecting
The following JDBC URL formats are supported:
- jdbc:presto://host:port
- jdbc:presto://host:port/catalog
- jdbc:presto://host:port/catalog/schema
For example, use the following URL to connect to Prestorunning on example.net
port 8080
with the catalog hive
and the schema sales
:
- jdbc:presto://example.net:8080/hive/sales
The above URL can be used as follows to create a connection:
- String url = "jdbc:presto://example.net:8080/hive/sales";
- Connection connection = DriverManager.getConnection(url, "test", null);
Connection Parameters
The driver supports various parameters that may be set as URL parametersor as properties passed to DriverManager
. Both of the followingexamples are equivalent:
- // URL parameters
- String url = "jdbc:presto://example.net:8080/hive/sales";
- Properties properties = new Properties();
- properties.setProperty("user", "test");
- properties.setProperty("password", "secret");
- properties.setProperty("SSL", "true");
- Connection connection = DriverManager.getConnection(url, properties);
- // properties
- String url = "jdbc:presto://example.net:8080/hive/sales?user=test&password=secret&SSL=true";
- Connection connection = DriverManager.getConnection(url);
These methods may be mixed; some parameters may be specified in the URLwhile others are specified using properties. However, the same parametermay not be specified using both methods.
Parameter Reference
Name | Description |
---|---|
user | Username to use for authentication and authorization. |
password | Password to use for LDAP authentication. |
socksProxy | SOCKS proxy host and port. Example: localhost:1080 |
httpProxy | HTTP proxy host and port. Example: localhost:8888 |
applicationNamePrefix | Prefix to append to any specified ApplicationName client infoproperty, which is used to set the source name for the Presto query.If neither this property nor ApplicationName are set, the sourcefor the query will be presto-jdbc . |
accessToken | Access token for token based authentication. |
SSL | Use HTTPS for connections |
SSLKeyStorePath | The location of the Java KeyStore file that contains the certificateand private key to use for authentication. |
SSLKeyStorePassword | The password for the KeyStore. |
SSLTrustStorePath | The location of the Java TrustStore file that will be usedto validate HTTPS server certificates. |
SSLTrustStorePassword | The password for the TrustStore. |
KerberosRemoteServiceName | Presto coordinator Kerberos service name. This parameter isrequired for Kerberos authentication. |
KerberosPrincipal | The principal to use when authenticating to the Presto coordinator. |
KerberosUseCanonicalHostname | Use the canonical hostname of the Presto coordinator for the Kerberosservice principal by first resolving the hostname to an IP addressand then doing a reverse DNS lookup for that IP address.This is enabled by default. |
KerberosConfigPath | Kerberos configuration file. |
KerberosKeytabPath | Kerberos keytab file. |
KerberosCredentialCachePath | Kerberos credential cache. |
extraCredentials | Extra credentials for connecting to external services. TheextraCredentials is a list of key-value pairs. Example:foo:bar;abc:xyz will create credentials abc=xyz and foo=bar |