明天在写代码的时候遇到一个问题,应用mybatis传参数化的表名时,始终报
Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''ntps_source_case-mgr-server' (service_name, domain, request_type, urlpath, para' at line 1因为对mybatis应用还不是很相熟,所以特地记录下该问题的解决过程。首先:具体看下报错日志,及打印的sql,发现了一点端倪:表名'ntps_source_case-mgr-server'被加了双引号。于是做了第一个批改措施:去掉双引号。在mubatis中,通常通过应用#{} 来进行传参。然而mybatis还有另一种传参形式${},他们的区别如下:
#{} 将传入的数据都当成一个字符串,会对主动传入的数据加一个双引号,能够避免sql注入; ${} 将传入的数据间接显示生成在sql中,不会额定增加双引号,通常能够用来传表名和库名;
论断:因而去掉表名双引号的操作是将表名传参的#{}模式改为${}。批改为  然而,批改之后呈现了一个新的报错:
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '-mgr-server (service_name, domain, request_type, urlpath, params, headers, repon' at line 1
通过在次剖析日志并打印生成的sql,间接执行sql,发现同样报异样
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '-mgr-server (
两次谬误均提醒表名异样,排查发现起因:表名中含有横线"-"。此时必须将表名进行独自标注。将表名${}外增加一层倒引号援用,即改为`${}`. 