Mybaits

1、Mybatis全注解形式  （在注解上不能直接使用动态Sql，必须要在前后面加上<script>SQL</script>标签，否则会报错）：

     @Select("<script>" +
             "select discuss_id,discuss_content,parent_discuss_id,discuss_type,create_datetime from t_discuss " +
             "<where>" +
             "discuss_id in <foreach collection='discussIds' item='item' open='(' separator=',' close=')'>#{item}</foreach>" +
             "</where>" +
             "</script>")
     @Results({
             @Result(column = "discuss_id", property = "discussId"),
             @Result(column = "discuss_content", property = "discussContent"),
             @Result(column = "parent_discuss_id", property = "parentDiscussId"),
             @Result(column = "discuss_type", property = "discussType"),
             @Result(column = "create_datetime", property = "createDatetime"),
     })
     List<TDiscuss> selectDiscussPushByPIds(@Param("discussIds") List<Long> discussIds);

2、like不能直接使用，可以借助concat函数实现：

@Select("SELECT name from user WHERE email LIKE concat(#{prefix},'%') limit 10")