技术问询：JHipster未来版本是否支持DB2？能否从JHipster连接DB2？

Hey there! Let's tackle your two questions about JHipster and DB2 support one by one:

As of today, DB2 isn't part of JHipster's official list of supported databases. But here's the thing—JHipster is built and driven by its community. If there's strong user demand, and contributors step up to implement the necessary DB2-specific configurations, write tests, and update documentation, there's a solid chance DB2 could make its way into the official supported lineup in future releases. Keep an eye on the project's GitHub discussions and roadmap for any potential updates on this.

Absolutely, you can get your JHipster app connected to DB2 right now with some manual setup. Here's a step-by-step breakdown:

• Add the DB2 JDBC Driver: First, include the DB2 JDBC driver in your project's dependencies. For Maven, add this to your pom.xml:

  <dependency>
      <groupId>com.ibm.db2</groupId>
      <artifactId>jcc</artifactId>
      <version>11.5.7.0</version> <!-- Use the latest compatible version -->
  </dependency>
  

  For Gradle, add this to your build.gradle:

  implementation 'com.ibm.db2:jcc:11.5.7.0'
  

• Update Database Configuration: Modify your environment-specific config files (like application-dev.yml or application-prod.yml) with your DB2 connection details:

  spring:
    datasource:
      url: jdbc:db2://your-db2-host:50000/your-database-name:currentSchema=your-schema-name;
      username: your-db-username
      password: your-db-password
      driver-class-name: com.ibm.db2.jcc.DB2Driver
    jpa:
      hibernate:
        ddl-auto: update # Choose create, create-drop, validate, or none based on your needs
      properties:
        hibernate:
          dialect: org.hibernate.dialect.DB2Dialect
  

• Tweak Entity Code (If Needed): When using JHipster's entity generator, you might need to adjust generated code to fit DB2's syntax. For example, auto-increment columns in DB2 use GENERATED ALWAYS AS IDENTITY, so you may need to update your entity's column annotations manually after generation.
• Test the Connection: Fire up your JHipster app and check the logs to confirm the connection to DB2 works. If you run into errors, double-check your connection URL, credentials, and driver version.

Many community members have successfully used these steps to integrate DB2 with JHipster, so it's a reliable workaround for now.

内容的提问来源于stack exchange，提问作者techaccount