package com.lk.list.user;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import com.lk.list.model.User;
public class UserList {
/**
* @param args
*/
public static void main(String[] args) {
User u1 = new User("1","1");
User u2 = new User("2","2");
User u3 = new User("3","3");
User u4 = new User("4","4");
List<User> users = new ArrayList<User>();
users.add(u1);
users.add(u2);
users.add(u3);
users.add(u4);
/**
* 利用利用for循环输出users里面的值
*/
for(int i = 0; i < users.size(); i++){
System.out.print(users.get(i).getUsername() + " ");
}
System.out.println("for循环结束");
/**
* 利用users.iterator();获取lists里面的值
*/
Iterator<User> it = users.iterator();
while(it.hasNext()){
System.out.print(it.next().getUsername()+ " ");
}
System.out.println("iterator循环结束");
}
}
具体的使用方法可以看api
2、Struts2中遍历List方法
<table>
<s:iterator value="books" status="index" id="book">
<tr>
<td>书名</td>
<td><s:property value="#book.bookName" />.</td>
</tr>
</s:iterator>
</table>