解决MyBatis异常：The content of elements must consist of well-formed character data or markup.

错误：The content of elements must consist of well-formed character data or markup.

分析：在MyBatis的映射文件中出现了特殊字符的情况下会出现以上错误。特殊字符有:  < 小于号 ,>大于号等

解决：要用<![CDATA[]]>包裹着。

<![CDATA[
　　select * from tb_users where id<=100
]]>