mybatis批量更新update-设置多个字段值 报错 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near

2016年08月01日 12:49:26 姚一号 阅读数：29539 标签： mysql mybatis批量更新批量更新allowMultiQuerie更多

个人分类： mybatis

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/mingliangniwo/article/details/52084648

mybatis由于简单易用性得到大家的认可和使用

但是在批量更新操作中，网上介绍的貌似不全，正好今天做个记录，大家一起进步

在实际项目开发过程中，常有这样的需求：根据ids更新表的某一个字段值，这时的sql语句是：

1. public interface IStaffDao {

2. void batchUpdate(@Param("list") List<Long> list);

3. }

1. <select resultMap="staff_Mapper">

2. update staff set status = 0 where id in

3. <foreach collection="list" item="item" index="index" open="(" separator="," close=")" >

4. #{item}

5. </foreach>

6. ORDER BY id

7. </select>

还有一种情况：根据ids更新表的多个值，并且每个id对应的值也不一样，这时上述语句已经满足不了需求，需要另一种批量更新sql语句

1. public interface IStaffDao {

2. void batchUpdate(@Param("list") List<Staff> list);

3. }

1. <update parameterType="java.util.List" >

2. <foreach collection="list" item="item" index="index" separator=";">

3. UPDATE staff set count = #{item.count} , code = #{item.code} , invalid_time = #{item.time} WHERE id = #{item.id}

4. </foreach>

5. </update>

由于这种批量更新是一次执行多个update语句，所以mybatis需要额外的配置：

在spring.datasource.url后加上allowMultiQueries=true

如：jdbc:mysql://10.10.20.36:3306/test?allowMultiQueries=true

否则，在执行sql语句时，会报下面的错误

1. [org.apache.ibatis.session.defaults.DefaultSqlSession@76a2f910]

2. org.springframework.jdbc.BadSqlGrammarException:

3. ### Error updating database. Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'update b_email_msg_remind

4. SET send_status = 1, send_email_code='abc@abc.abc'' at line 6

5. ### The error may involve com.hhsoft.sectionservice.model.persistence.EmailMapper.updateEmailTasks-Inline

6. ### The error occurred while setting parameters

7. ### Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'update staff

8. SET status = 1, send_email_code='abc@abc.abc';<span >update sta<span >ff SET status = 2,</span> send_email_code='test@qq.com' </span>' at line 6

9. ; bad SQL grammar []; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'update b_email_msg_remind

10. SET send_status = 1, send_email_code='abc@abc.abc'' at line