修改防疫检测bug

huimv-cattle/src/main/java/com/huimv/cattle/mapper/xml/PreventDetectionMapper.xml

@@ -18,7 +18,7 @@
     </sql>
     <select id="getPreventDetectionScreen" resultType="com.huimv.cattle.pojo.PreventDetection">
         SELECT SUM(detection_num) detectionNum ,SUM(acceptance_num) acceptanceNum,`year`,month_name ,`month` , farm_code FROM `prevent_detection`
-        WHERE farm_code == #{farmCode} GROUP BY `year` ,`month` order  by `year` DESC,`month` DESC
+        WHERE farm_code = #{farmCode} GROUP BY `year` ,`month` order  by `year` DESC,`month` DESC
     </select>
 
 </mapper>