easybest / spring-data-mybatis

Simplifies the development of creating a MyBatis-based data access layer.
https://sdm.easybest.io
Apache License 2.0
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是否支持批量新增、修改 #248

Open senlu opened 2 years ago

senlu commented 2 years ago

我像使用mybatis的批量插入、更新方式时,发现不能成功(如下),因为batchSqlSession.getMapper(mapperClass);获取不到,有什么方式能获取到或者其他方式实现类似这种的批量操作吗(不使用sql语句拼接)?随便问下新版本有计划什么时候发布吗? public <T, U, R> int batchUpdateOrInsert(List data, Class mapperClass, BiFunction<T, U, R> function) { int count = 1; SqlSession batchSqlSession = sqlSessionFactory.openSession(ExecutorType.BATCH); try { U mapper = batchSqlSession.getMapper(mapperClass);

        int size = data.size();
        for (T element : data) {
            function.apply(element, mapper);
            if ((count % BATCH_SIZE == 0) || count == size) {
                batchSqlSession.flushStatements();
            }
            count++;
        }
        // 非事务环境下强制commit,事务情况下该commit相当于无效
        batchSqlSession.commit(!TransactionSynchronizationManager.isSynchronizationActive());
    } catch (Exception e) {
        LogUtils.error(e, log, "MybatisBatchUtils处理异常");
        batchSqlSession.rollback();
        throw BusinessException.newInstance("批量插入错误");
    } finally {
        batchSqlSession.close();
    }
    return count - 1;
}
KangMz commented 3 weeks ago

😥有找到什么解决方案嘛。 我也遇到了这个问题,xml中的namespace值是实体类, addMapper的时候会判断type是不是interface,否则就不add。结果就导致knownMappers是空的。getMapper时就拿不到mapper了