JavaEE of Mybatis encountered pit 1
After writing the relevant logic code, the following error appears
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 '"user" (username,password,phone,email) VALUES('TWG','123','15107793356','[email protected]' at line 1
; bad SQL grammar []; nested exception is 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 '"user" (username,password,phone,email) VALUES('TWG','123','15107793356','[email protected]' at line 1
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:982)
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
javax.servlet.http.HttpServlet.service(HttpServlet.java:661)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
So I checked the following SQL statements in the XML several times and found that there is no problem
<mapper namespace="com.twgfs.ui.dao.LoginRegistServiceDao">
<insert id="Registing">
INSERT INTO "user" (username,password,phone,email) VALUES(#{username},#{password},#{phone},#{email})
</insert>
</mapper>
So I had to try one by one, and finally I realized that at the time of writing INSERTINTO automatically prompts the user table name and then I easily press the Enter so he wrote the quoted "user" table name so it has been suggested error!
Conclusion: When using Mybatis to write SQL statements, pay attention to the automatic prompt of the table name may bring "" This will find it difficult to find the error, so it is better to write manually!
