想在mapper的一個更新節點進行多條update語句的操作:

<update parameterType='java.lang.String'> update user set valid_status = 1 where mobile_phone = #{mobilePhone}; update user_account set valid_status = 1 where mobile_phone = #{mobilePhone} ;</update>

mybatis是默認不支持的，需要在數據庫配置中配置相關參數：

propertes 或者yml配置 文件中的jdbc后追加&allowMultiQueries=true

jdbc.jdbcUrl=jdbc:mysql://127.0.0.1:3306/database?useUnicode=true&characterEncoding=utf8&allowMultiQueries=true

補充：mybatis批量更新update-設置多個字段值

mybatis由于簡單易用性得到大家的認可和使用

但是在批量更新操作中，網上介紹的貌似不全，正好今天做個記錄，大家一起進步

在實際項目開發過程中，常有這樣的需求：根據ids更新表的某一個字段值，這時的sql語句是：

public interface IStaffDao { void batchUpdate(@Param('list') List<Long> list);}

<select resultMap='staff_Mapper'> update staff set status = 0 where id in <foreach collection='list' item='item' index='index' open='(' separator=',' close=')' > #{item} </foreach> ORDER BY id</select>

還有一種情況：根據ids更新表的多個值，并且每個id對應的值也不一樣，這時上述語句已經滿足不了需求，需要另一種批量更新sql語句

public interface IStaffDao { void batchUpdate(@Param('list') List<Staff> list);}

<update parameterType='java.util.List' > <foreach collection='list' item='item' index='index' separator=';'> UPDATE staff set count = #{item.count} , code = #{item.code} , invalid_time = #{item.time} WHERE id = #{item.id} </foreach></update>

由于這種批量更新是一次執行多個update語句，所以mybatis需要額外的配置：

在spring.datasource.url后加上allowMultiQueries=true

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

否則，在執行sql語句時，會報下面的錯誤

[org.apache.ibatis.session.defaults.DefaultSqlSession@76a2f910]org.springframework.jdbc.BadSqlGrammarException: ### 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 SET send_status = 1, send_email_code=’abc@abc.abc’’ at line 6### The error may involve com.hhsoft.sectionservice.model.persistence.EmailMapper.updateEmailTasks-Inline### The error occurred while setting parameters### 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 SET status = 1, send_email_code=’abc@abc.abc’;<span style='font-family: Helvetica, Tahoma, Arial, sans-serif;'>update sta<span style='font-size:10px;'>ff SET status = 2,</span> send_email_code=’test@qq.com’ </span>’ at line 6; 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 SET send_status = 1, send_email_code=’abc@abc.abc’’ at line 6

以上為個人經驗，希望能給大家一個參考，也希望大家多多支持好吧啦網。如有錯誤或未考慮完全的地方，望不吝賜教。