Mybatisplus多数据源batchInsert

使用DynamicBatchInsertUtil工具类，配合@DSTransactional使用

先上代码，需要的直接拿走

@Component
public class DynamicBatchInsertUtil {

    private static String defaultDsKey;

    /**
     * 给静态变量赋值
     *
     * @param defaultDsKey
     */
    @Value("${spring.datasource.dynamic.primary}")
    public void setDefaultDsKey(String defaultDsKey) {
        this.defaultDsKey = defaultDsKey;
    }

    /**
     * 批量插入
     *
     * @param list        数据
     * @param mapperClass 执行数据的mapper的CLass
     * @return
     */
    public static int batchInsert(Object list, Class mapperClass) {
        DS ds = (DS) mapperClass.getAnnotation(DS.class);
        // Mapper没有注解，就使用默认的
        String dsKey = ds != null ? ds.value() : defaultDsKey;
        return batchInsert(dsKey, list, mapperClass);
    }

    /**
     * 批量插入-参照@DS实现源码
     *
     * @param dsKey       数据源
     * @param list        数据
     * @param mapperClass 执行数据的mapper的CLass
     * @return
     */
    public static int batchInsert(String dsKey, Object list, Class mapperClass) {
        DynamicDataSourceContextHolder.push(dsKey);
        try {
            return batchInsertExecute(list, mapperClass);
        } finally {
            DynamicDataSourceContextHolder.poll();
        }
    }

    public static int batchInsertExecute(Object list, Class mapperClass) {
        SqlSessionFactory sqlSessionFactory = SpringUtils.getBean("sqlSessionFactory");
        try (SqlSession sqlSession = sqlSessionFactory.openSession(ExecutorType.BATCH)) {

            Object mapper = sqlSession.getMapper(mapperClass);

            ((List