mybatis乱码

单个字段

<property name="url" value="jdbc:mysql://127.0.0.1:3306/db?characterEncoding=utf8"/>

 多个字段

<property name="url" value="jdbc:mysql://172.8.10.142:3306/siger?characterEncoding=utf8&amp;useSSL=true&amp;autoReconnect=true"/>