Connect to Kafka from a Connection Pool in WebLogic

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Apache Kafka JDBC Driver

Apache Kafka データに連携するJava アプリケーションを素早く、簡単に開発できる便利なドライバー。



Use the CData JDBC Driver for Kafka to connect to Kafka data from Web applications running on WebLogic.

The CData JDBC Driver for Kafka enables you to follow standard procedures to integrate Kafka data into Java Web applications. This article shows how to deploy the CData JDBC Driver for Kafka in WebLogic server.

Install the JDBC Driver in WebLogic Server

Add the driver JAR and license file to the classpath your application will be using. The .lic file must be located in the same folder as the JAR. These files are located in the lib subfolder of the installation directory.

If you want to add the driver to all domains, add the JAR to the WEBLOGIC_CLASSPATH environment variable. add the following line to the commEnv.cmd/sh script in WL_HOME\common\bin\.

set WEBLOGIC_CLASSPATH=your-installation-directory\lib\cdata.jdbc.apachekafka.jar;%WEBLOGIC_CLASSPATH%

If you want to add the driver to a specific domain, you will need to add the JAR to the PRE_CLASSPATH environment variable. Add the following line to the setDomainEnv.cmd/sh script in the bin subfolder of the folder for that domain:

set PRE_CLASSPATH=your-installation-directory\lib\cdata.jdbc.apachekafka.jar;%PRE_CLASSPATH%

Create a JDBC Data Source for Kafka

After installing the driver, create the connection.

  1. In the Domain Structure tree, click Services -> Data Sources -> New -> Generic Data Source.
  2. On the JDBC Data Source Properties page, enter the following information:
    • Name: Enter a user-friendly name; for example, apachekafkajdbc.
    • JDBC Name: Enter the path the JDBC data source will be bound to; for example, jdbc/ApacheKafka.
    • Database Type: Select Other.

  3. Click Next to use the default options. On the last page, enter the following information and click Test Configuration:

    • Driver Class Name: Enter the driver class, cdata.jdbc.apachekafka.ApacheKafkaDriver, in this property.
    • URL: Enter the JDBC URL. A typical JDBC URL is below:

      jdbc:apachekafka:User=admin;Password=pass;BootStrapServers=https://localhost:9091;Topic=MyTopic;

      BootstrapServers およびTopic プロパティを設定して、Apache Kafka サーバーのアドレスと、対話するトピックを指定します。

      認可メカニズム

      • SASL PlainUser およびPassword プロパティを指定する必要があります。AuthScheme は'Plain' に設定します。
      • SASL SSLUser およびPassword プロパティを指定する必要があります。AuthScheme は'Scram' に、UseSSL はtrue に設定します。
      • SSLSSLCert およびSSLCertPassword プロパティを指定する必要があります。UseSSL はtrue に設定します。
      • KerberosUser およびPassword プロパティを指定する必要があります。AuthScheme は'Kerberos' に設定します。

      サーバー証明書を信頼する必要がある場合があります。そのような場合は、必要に応じてTrustStorePath およびTrustStorePassword を指定してください。

    • Database User Name: Enter the username, if not specified in the JDBC URL.
    • Password: Enter the password, if not specified in the JDBC URL.

After selecting the server where you want to deploy the JDBC data source, you can now connect to Kafka data.

More WebLogic Integration

The steps above show how configure the driver in a simple connection pooling scenario. For more use cases and information, see the JDBC sections in the WebLogic Data Sources chapter of the Oracle Fusion Middleware documentation.