ArrayList al=(ArrayList)request.getAttribute("arraylist"); for(int i=0;i<al.size();++i){ whattype var = (whattype)al.get(i); //ArrayList里存的是什么类型数据? // use var }
ArrayList al=(ArrayList)request.getAttribute("arraylist"); for(int i=0;i<al.size();++i){ type var = (type)al.get(i); }
<%@page import "java.util.Arraylist"%>
<html>
<head>
<title>
jsp
</title>
</head>
<body>
<%ArrayList al=request.getAttribute("arraylist");%>
<table>
<%
for (int i=0;i<al.size();i++)
%>
<tr>
<td>
<%=al.get(i)%>
</td>
</tr>
<% } %>
</body>
</html>
for(int i=0;i<al.size();++i){
whattype var = (whattype)al.get(i); //ArrayList里存的是什么类型数据?
// use var
}
for(int i=0;i<al.size();++i){
type var = (type)al.get(i);
}
按照 taoshuchen的方法 <%=al.get(i)%>
<%Iterator i=al.iterator();
while(i.hasNext()){
%>
<tr>
<td>
<%=i.next(i)%>
</td>
</tr>
<% } %>
</body>
</html>
String temp = (String) list.get(i)
out.println(temp);如果是你封装的对象 : YourObject
YourObject obj = (YourObject) list.get(i);
out.println(obj.someMethod());
for(int i=0;i<ips.size();i++)
{
out.print(String.valueOf(ips.get(i)));
}
if(a1!=null)
{
Iterator a1_ite=al.iterator();
while(a1_ite.hasNext())
{
out.println(a1_ite.next());
} }