1、在连接字符串中加入 allowMultiQueries=true 参数

 

<property name="driverUrl" value="jdbc:mysql://192.168.1.102:3306/dbname?useUnicode=true&characterEncoding=UTF-8&autoReconnect=true&failOverReadOnly=false&allowMultiQueries=true"/>

2、xml中加入分号

update device set space=  #{space};

update users set backuptime=NOW() where userid = #{userid};