批量插入或者刪除

 

 

public class BaseDao {

    @Autowired
    private SqlSessionTemplate sqlSessionTemplate;

    private final Logger logger = LoggerFactory.getLogger(this.getClass());


    void batchInsert(String statement, List parameterList, int pageSize) {
        if (parameterList == null || parameterList.size() == 0) {
            return;
            ;
        }
        int size = parameterList.size();
        if (size <= pageSize) {
            batchInsert(statement, parameterList);
        }
    }

    void batchInsert(String statement, List parameterList) {
        if (parameterList == null || parameterList.size() == 0) {
            return;
        }
        SqlSession batchSqlSession = null;
        try {
            batchSqlSession = sqlSessionTemplate.getSqlSessionFactory().openSession(ExecutorType.BATCH, false);
            for (Object obj : parameterList) {
                batchSqlSession.insert(statement, obj);
            }
            batchSqlSession.commit();
            //清理緩存防止溢出
            batchSqlSession.clearCache();
        } catch (Exception e) {
            logger.error("batch insert error");
            if (batchSqlSession != null) {
                batchSqlSession.rollback();
            }
        } finally {
            if (batchSqlSession != null) {
                batchSqlSession.close();
            }
        }
    }
}

用法：

       1.寫個接口繼承這個類，在接口實現類上加入@component註解

       2. 填寫SQL   ID