### Cause: java.lang.reflect.UndeclaredThrowableException Caused by: org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: java.lang.reflect.UndeclaredThrowableException ### The error may exist in file [E:\codeBase\top713\superrescue-service\target\classes\mybatis\qc\TechserviceEffiserviceEntityMapper.xml] ### The error may involve com.jn.ssr.superrescue.web.serviceEffi.dao.TechserviceEffiserviceEntityMapper.findTechEffi ### The error occurred while executing a query Caused by: net.sf.jsqlparser.parser.ParseException: Encountered " "(" "( "" at line 2, column 8. Was expecting one of: <EOF> "AS" ... "DO" ... "ANY" ... "KEY" ... "PERCENT" ... "END" ...
mybatis的錯誤，將sql放在Navicat中執行都可以
然后在<select></select>中寫一個簡單sql，發起情求，sql可以執行，說明mapper映射與resultMap還有parmaterType等沒有錯誤
將sql的字段一個一個的字段進行刪除然后執行，判斷是哪個字段出錯，最后找出是
SUM(o.service_type!='TC') AS repair_number,
這個字段，仿佛是mybatis不支持 SUM(列名)的格式
最后將這個字段修改為：
(select count(service_type) from or_rescue_order oro where service_type!="TC" and o.id = oro.id) AS repair_number,
就可以了