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Connect to Redis Data from a Connection Pool in Jetty

The Redis JDBC Driver supports connection pooling: This article shows how to connect faster to Redis data from Web apps in Jetty.

The CData JDBC driver for Redis is easy to integrate with Java Web applications. This article shows how to efficiently connect to Redis data in Jetty by configuring the driver for connection pooling. You will configure a JNDI resource for Redis in Jetty.

Configure the JDBC Driver for Salesforce as a JNDI Data Source

Follow the steps below to connect to Salesforce from Jetty.

  1. Enable the JNDI module for your Jetty base. The following command enables JNDI from the command-line:

    java -jar ../start.jar --add-to-startd=jndi
  2. Add the CData and license file, located in the lib subfolder of the installation directory, into the lib subfolder of the context path.
  3. Declare the resource and its scope. Enter the required connection properties in the resource declaration. This example declares the Redis data source at the level of the Web app, in WEB-INF\jetty-env.xml.

    <Configure id='redisdemo' class="org.eclipse.jetty.webapp.WebAppContext"> <New id="redisdemo" class="org.eclipse.jetty.plus.jndi.Resource"> <Arg><Ref refid="redisdemo"/></Arg> <Arg>jdbc/redisdb</Arg> <Arg> <New class="cdata.jdbc.redis.RedisDriver"> <Set name="url">jdbc:redis:</Set> <Set name="Server">127.0.0.1</Set> <Set name="Port">6379</Set> <Set name="Password">myPassword</Set> </New> </Arg> </New> </Configure>

    Set the following connection properties to connect to a Redis instance:

    • Server: Set this to the name or address of the server your Redis instance is running on. You can specify the port in Port.
    • Password: Set this to the password used to authenticate with a password-protected Redis instance , using the Redis AUTH command.

    Set UseSSL to negotiate SSL/TLS encryption when you connect.

  4. Configure the resource in the Web.xml:

    jdbc/redisdb javax.sql.DataSource Container
  5. You can then access Redis with a lookup to java:comp/env/jdbc/redisdb: InitialContext ctx = new InitialContext(); DataSource myredis = (DataSource)ctx.lookup("java:comp/env/jdbc/redisdb");

More Jetty Integration

The steps above show how to configure the driver in a simple connection pooling scenario. For more use cases and information, see the Working with Jetty JNDI chapter in the Jetty documentation.