Question

jsp中怎么用不起vector对象?

An error occurred at line: 14 in the jsp file: /message.jsp Vector cannot be resolved to a type 11: <% out.print("留言板"); 12: String contents=request.getParameter("text"); 13: %> 14: <% Vector v=new Vector(); 15: for(int i=0;i<v.size();i++){ 16: v.add(contents) 17: out.print(v.get(i)); 想用vector存取信息，可是用不起！

Answer 1

jsp中也要导包
<%@ page import="java.util.Vector" %>
如果你已经导入了这个,或者java.util.*
那,我也不知道了..