DataIntegrityViolationException异常：java利用mymatis连接数据库异常

电玩女神 2022-05-15 00:23 648阅读 0赞

异常出现的信息 DataIntegrityViolationException:
    org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.dao.DataIntegrityViolationException: 
    ### Error updating database.  Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Cannot delete or update a parent row: a foreign key constraint fails (`data`.`orderdetail`, CONSTRAINT `FK_orderdetail_2` FOREIGN KEY (`items_id`) REFERENCES `items` (`id`) ON DELETE NO ACTION ON UPDATE NO ACTION)
    ### The error may involve cn.itcast.ssm.mapper.ItemsMapper.deleteItemById-Inline
    ### The error occurred while setting parameters
    ### SQL: delete from items where id=?
    ### Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Cannot delete or update a parent row: a foreign key constraint fails (`data`.`orderdetail`, CONSTRAINT `FK_orderdetail_2` FOREIGN KEY (`items_id`) REFERENCES `items` (`id`) ON DELETE NO ACTION ON UPDATE NO ACTION)
    ; SQL []; Cannot delete or update a parent row: a foreign key constraint fails (`data`.`orderdetail`, CONSTRAINT `FK_orderdetail_2` FOREIGN KEY (`items_id`) REFERENCES `items` (`id`) ON DELETE NO ACTION ON UPDATE NO ACTION); nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Cannot delete or update a parent row: a foreign key constraint fails (`data`.`orderdetail`, CONSTRAINT `FK_orderdetail_2` FOREIGN KEY (`items_id`) REFERENCES `items` (`id`) ON DELETE NO ACTION ON UPDATE NO ACTION)
    	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:927)
    	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:811)
    	javax.servlet.http.HttpServlet.service(HttpServlet.java:624)
    	org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:796)
    	javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
    	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
    	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

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出现这种问题是数据库表与别的表有想连接关系，如果别的表没有用，将别的表删除就好了，就可以操作这个表！