Connect AlloyDB to IBM WebSphere Using the CData JDBC Driver

IBM WebSphere is a powerful application server that runs many enterprise level Java applications and services. When paired with the CData JDBC Driver for AlloyDB, IBM WebSphere applications can connect to AlloyDB and work with data using standard SQL queries instead of complex APIs. This simplifies integration, reduces development effort, and provides secure, real-time access to critical business data.

Prerequisites

1. Access to a AlloyDB account (with API permissions)
2. IBM WebSphere Application Server (configured and running)
3. CData JDBC Driver for AlloyDB
4. Java Servlet WAR application ready for deployment

Note: This article uses Salesforce as a demonstration data source, but the same steps can be followed to connect to any of the 250+ JDBC Drivers available in our portfolio.

Getting Started

Step 1: Download and install the CData JDBC Driver for AlloyDB

Download and install the CData JDBC Driver for AlloyDB, which provides a .jar file: cdata.jdbc.alloydb.jar

Step 2: Install and configure IBM Websphere

1. Create an account in IBM WebSphere using the official IBM site.
2. Install and configure the IBM Websphere Application server in the local system using the documentation: IBM Websphere Application Server
3. Once the application server is installed, start the WebSphere Server using the Admin Console in your browser: https://your-server:9043/ibm/console

Step 3: Set up the JDBC provider and data source for AlloyDB

1. Go to Resources, expand the JDBC section, and then select JDBC providers to create a new provider

2. Select the appropriate scope from the drop down menu

3. Click New to add a JDBC provider
• Choose User defined as the database type
• Enter cdata.jdbc.alloydb.AlloyDBConnectionPoolDataSource as the implementation class name
• Type a name for the provider, for example User defined JDBC Provider
• Enter the full path of the JDBC driver JAR file in the classpath field
• Click Next, then Finish, and save the changes to the master configuration.

4. Once the JDBC provider is created, add a JDBC data source.
• Enter the basic details such as Data Source Name and JNDI name
• Select the existing JDBC provider created earlier (e.g., CData AlloyDB Provider)
• Provide the Implementation class name: cdata.jdbc.alloydb.AlloyDBConnectionPoolDataSource
• Add the Data Store Helper Class Name: com.ibm.websphere.rsadapter.GenericDataStoreHelper
• Configure security by setting authentication aliases if required
• Review the Summary page to verify all details and click Finish to complete the data source creation

5. Select the newly created data source from the list and open Custom properties
6. Add the JDBC connection string under the URL property and press OK. For example:

   jdbc:alloydb:RTK=5246...;User=alloydb;Password=admin;Database=alloydb;Server=127.0.0.1;Port=5432

   The following connection properties are usually required in order to connect to AlloyDB.

   • Server: The host name or IP of the server hosting the AlloyDB database.
   • User: The user which will be used to authenticate with the AlloyDB server.
   • Password: The password which will be used to authenticate with the AlloyDB server.

   You can also optionally set the following:

   • Database: The database to connect to when connecting to the AlloyDB Server. If this is not set, the user's default database will be used.
   • Port: The port of the server hosting the AlloyDB database. This property is set to 5432 by default.

   Authenticating with Standard Authentication

   Standard authentication (using the user/password combination supplied earlier) is the default form of authentication.

   No further action is required to leverage Standard Authentication to connect.

   Authenticating with pg_hba.conf Auth Schemes

   There are additional methods of authentication available which must be enabled in the pg_hba.conf file on the AlloyDB server.

   Find instructions about authentication setup on the AlloyDB Server here.

   Authenticating with MD5 Authentication

   This authentication method must be enabled by setting the auth-method in the pg_hba.conf file to md5.

   Authenticating with SASL Authentication

   This authentication method must be enabled by setting the auth-method in the pg_hba.conf file to scram-sha-256.

   Authenticating with Kerberos

   The authentication with Kerberos is initiated by AlloyDB Server when the ∏ is trying to connect to it. You should set up Kerberos on the AlloyDB Server to activate this authentication method. Once you have Kerberos authentication set up on the AlloyDB Server, see the Kerberos section of the help documentation for details on how to authenticate with Kerberos.

   Built-in Connection String Designer

   For assistance in constructing the JDBC URL, use the connection string designer built into the AlloyDB JDBC Driver. Either double-click the JAR file or execute the jar file from the command-line.

         java -jar cdata.jdbc.alloydb.jar
         

   Fill in the connection properties and copy the connection string to the clipboard.

   

   Note: If the URL property is not available, create it and then add the JDBC connection string.

   Tip: Always test the connection string with the driver before entering it in the URL property.
7. Now open the data source and choose Test Connection

Step 4: Build the web application

1. Build the web application using preferred Java framework (Servlet, JSP, or Spring). The resulting .war file will typically follow a structure like this:

		AlloyDBServletApp.war
		|--webcontent
		|  |--index.jsp                 -- JSP page (entry point)
		|  |
		|  |--WEB-INF/                  --Hidden from direct browser access
		|     |--web.xml                 -- Deployment descriptor
		|     |
		|     |--classes/                  --Compiled .class files
		|       |--com/example/AlloyDB/
		|          |--AlloyDBServlet.class
		|
		|--lib/                      --Dependency JARs
		|--cdata.jdbc.alloydb.jar
	

2. Define the data access logic using JDBC or JPA, referencing the data source through a JNDI name
3. This article walks through JDBC connection setup and deploying a Java Servlet application
4. Package the project as a WAR (Web Application Archive) or EAR (Enterprise Archive) file for deployment
• In a terminal compile the java file using the command:

  			cd webcontent
  			jar cvf ..\AlloyDBServletApp.war *
  		

Step 5: Deploy the AlloyDB application in WebSphere

1. In the WebSphere admin console, go to Applications and select Install New Application
2. Browse and upload the WAR file, then continue with the installation wizard.

Step 6: Retrieve AlloyDB data through WebSphere

1. Access the application using its context root: http://hostname:port/context-root/page
Note: Ensure the deployed application is started before opening it in the browser.

We can now view the retrieved data from the source. The data is accessible directly through IBM WebSphere. This setup demonstrates how a servlet can be deployed in WebSphere to retrieve AlloyDB data using the JDBC driver, creating a strong foundation for building advanced AlloyDB powered enterprise applications.

Get Started with Connecting AlloyDB to IBM WebSphere

Start connecting AlloyDB to IBM WebSphere with the CData JDBC Connector today. Download the free 30-day trial and explore how easy it is to enable secure, real-time data access for your applications. As always, our world-class Support Team is available to help with any questions you may have.