org.apache.jasper.JasperException: Unable to compile class for JSP: An error occurred at line: 52 in the jsp file: /vip_info.jsp ÕË cannot be resolved 49: <table border="1& ......
String sqlCount="select count(*) from usertable where username='"+ userName+"'";这句话 什么意思啊! 这句话输出出来就是 select count(*) from usertable where username='你的变量 ......