Only a type can be imported代码实例

<%@ page import="org.apache.commons.fileupload.*" %>
<%@ page import="org.apache.commons.fileupload.disk.DiskFileItemFactory" %>
<%@ page import="org.apache.commons.fileupload.servlet.ServletFileUpload" %>

今天使用Commons-FileUpload时一直提示Only a type can be imported错误，很懵逼

网上方式不一，有的说改成

<%@ page import="org.apache.commons.fileupload.*" %>
<%@ page import="org.apache.commons.fileupload.disk.DiskFileItemFactory.*" %>
<%@ page import="org.apache.commons.fileupload.servlet.ServletFileUpload.*" %>

但事实证明并不行，我是需要导入类，不是包，继续查才发现是tomcat没有检索到该包，

最后把jar包放到tomcat下面的lib文件夹下面，果然可以了