Mybatis批量插入大量数据最优方式_mybatis 批量插入

Mybatis批量插入的方式有三种

1. 普通插入
2. foreach 优化插入
3. ExecutorType.BATCH插入

下面对这三种分别进行比较:

1.普通插入

默认的插入方式是遍历insert语句，单条执行，效率肯定低下，如果成堆插入，更是性能有问题。

INSERT INTO `table1` (`field1`, `field2`) VALUES ("data1", "data2");
INSERT INTO `table1` (`field1`, `field2`) VALUES ("data1", "data2");
INSERT INTO `table1` (`field1`, `field2`) VALUES ("data1", "data2");
INSERT INTO `table1` (`field1`, `field2`) VALUES ("data1", "data2");
INSERT INTO `table1` (`field1`, `field2`) VALUES ("data1", "data2");
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sql log如下:

2022-08-30 05:26:02 [1125b8ff-dfa3-478e-bbee-29173babe5a7] [http-nio-3005-exec-2] [com.btn.common.config.MybatisSqlLoggerInterceptor]-[INFO] 拦截的sql ==>: com.btn.mapper.patient.PatientLabelDetailMapper.insert:INSERT INTO t_patient_label_detail ( patient_id, doctor_id, tag_id, patient_name, gender, age, create_by, create_time ) VALUES ( 337, 178, 251, '刘梅好', 2, 29, '178',  )
2022-08-30 05:26:02 [1125b8ff-dfa3-478e-bbee-29173babe5a7] [http-nio-3005-exec-2] [com.btn.mapper.patient.PatientLabelDetailMapper.insert]-[DEBUG] ==>  Preparing: INSERT INTO t_patient_label_detail ( patient_id, doctor_id, tag_id, patient_name, gender, age, create_by, create_time ) VALUES ( ?, ?, ?, ?, ?, ?, ?, ? ) 

2022-08-30 05:34:40 [215b2b99-b0c9-41f6-93b2-545c8d6ff0fb] [http-nio-3005-exec-2] [com.btn.common.config.MybatisSqlLoggerInterceptor]-[INFO] 拦截的sql ==>: com.btn.mapper.patient.PatientLabelDetailMapper.insert:INSERT INTO t_patient_label_detail ( patient_id, doctor_id, tag_id, patient_name, gender, age, create_by, create_time ) VALUES ( 256, 178, 253, '
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