MyBatis 批处理优化 - 使用工具类提高效率

对下面标题和内容进行seo优化并重写,方便搜索引擎收录,请用JSON格式输出以下信息:{"title":"","description":"","keywords":"","content":""},并且将内容中的所有字符进行转义,输出为一行。标题:private int Batch=2;override\nTransactional\npublic Result add(CheckGroup checkGroup,Integer[] checkitemIds) {\ntry {\ncheckGroupMapper.insert(checkGroup);if (checkitemIds.length<=0){\nreturn new Result( flag: false，MessageConstant .ADD_CHECKGROUP_FAIL，data: null\n}\nSqlSession sq]Session = sqlSessionFactory.openSession(ExecutorType .BATCH， autoCommit: false);CheckItemAndGroupNapper mapper = sqlSession.getMapper(CheckItemAndGroupHapper.class);\nfor (int index = 0; index < checkitemIds.length; index++) {\nmapper.insert(checkitemIds[index] , checkGroup.getId());if (index ! =0&&index%Batch==0){\nsqlSession.commitO);\n}\n}\n//提交剩佘数据\nsqlsession.commit();} catch (Exception e) {\nreturn new Result( flag: false，MessageConstant.ADD_CHECKGROUP_FAIL，data: null);\nreturn new Result( flag: true，MessageConstant.ADD_CHECKGROUP_SUCCESs,data: null);\n把里面的mybatis batch编写成工具类内容:你可以创建一个名为BatchUtils的工具类，来实现MyBatis的批处理操作。以下是一个简单的示例代码：\n\njava\npublic class BatchUtils {\n private static final int BATCH_SIZE = 100;\n\n public static void executeBatch(SqlSession sqlSession, String statement, List<Object> parameterList) {\n int size = parameterList.size();\n int batchCount = (size + BATCH_SIZE - 1) / BATCH_SIZE;\n\n for (int i = 0; i < batchCount; i++) {\n int fromIndex = i * BATCH_SIZE;\n int toIndex = Math.min((i + 1) * BATCH_SIZE, size);\n List<Object> subList = parameterList.subList(fromIndex, toIndex);\n sqlSession.insert(statement, subList);\n }\n\n sqlSession.commit();\n }\n}\n\n\n使用该工具类，你可以将你的代码改写如下：\n\njava\npublic Result add(CheckGroup checkGroup, Integer[] checkitemIds) {\n try {\n checkGroupMapper.insert(checkGroup);\n if (checkitemIds.length <= 0) {\n return new Result(false, MessageConstant.ADD_CHECKGROUP_FAIL, null);\n }\n\n try (SqlSession sqlSession = sqlSessionFactory.openSession(ExecutorType.BATCH, false)) {\n CheckItemAndGroupMapper mapper = sqlSession.getMapper(CheckItemAndGroupMapper.class);\n List<Object> parameterList = new ArrayList<>();\n\n for (int index = 0; index < checkitemIds.length; index++) {\n parameterList.add(new Object[] { checkitemIds[index], checkGroup.getId() });\n\n if ((index + 1) % BatchUtils.BATCH_SIZE == 0 || index == checkitemIds.length - 1) {\n BatchUtils.executeBatch(sqlSession, "insert", parameterList);\n parameterList.clear();\n }\n }\n\n sqlSession.commit();\n }\n } catch (Exception e) {\n return new Result(false, MessageConstant.ADD_CHECKGROUP_FAIL, null);\n }\n\n return new Result(true, MessageConstant.ADD_CHECKGROUP_SUCCESS, null);\n}\n\n\n请注意，这只是一个简单示例，具体的实现可能需要根据你的代码和需求做一些调整。