特殊字符 --------------------------- 替代符号

&        			   &

 <    				   <

 >   			       >

 "          		   "

 '      		       '

小于等于 a<=b a <= b a <![CDATA[<= ]]>b
大于等于 a>=b a >= b a <![CDATA[>= ]]>b
不等于 a!=b a <![CDATA[ <> ]]>b a <![CDATA[!= ]]>b

例子:
AND <![CDATA[ province_id = #{provinceId} ]]> AND <![CDATA[ id <> #{id} ]]>