How to Build a Custom Kingbase Datasource Plugin for Nacos 2.2+

Nacos supports plugin-based multi‑datasource injection via its SPI mechanism starting from version 2.2.0. By adding the appropriate datasource implementation, you can select the desired plugin through the spring.datasource.platform property in application.properties.

By default, Nacos provides implementations for MySQL and Derby; other databases require custom extensions as described below.

Custom Kingbase Plugin

1. Add Kingbase Plugin Dependency

The dependencies are already uploaded to Maven Central; do not use the Alibaba Cloud proxy.

<dependency>
    <groupId>com.pig4cloud.plugin</groupId>
    <artifactId>nacos-datasource-plugin-kingbase</artifactId>
    <version>0.0.2</version>
</dependency>

<!-- Kingbase database driver -->
<dependency>
    <groupId>com.pig4cloud.plugin</groupId>
    <artifactId>kingbase8</artifactId>
    <version>8.6.0</version>
</dependency>

2. Import Nacos Kingbase Database Script

Special setting in kingbase.conf: convert empty string to NULL. ora_input_emptystr_isnull = off Download the Nacos Kingbase script from the repository.

3. Configure Kingbase Datasource Connection

db:
  num: 1
  url:
    0: jdbc:kingbase8://127.0.0.1:54321/test?currentSchema=pig_config
  user: SYSTEM
  password: SYSTEM
  pool:
    config:
      driver-class-name: com.kingbase8.Driver

4. Specify Nacos Datasource Platform

spring:
  datasource:
    platform: kingbase8