?
import java.io.Serializable;
@SuppressWarnings("all")
public class User implements Serializable{
private int id;
private String username;
private String password;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}
? ? Struts2 Action
public String list() throws Exception {
List list=new ArrayList();
User user=new User();
user.setPassword("admin123");
user.setUsername("张三");
list.add(user);
user=new User();
user.setPassword("admin123");
user.setUsername("李四");
list.add(user);
if(list!=null){
request.setAttribute("list", list);
return "userinfo";
}else{
return "input";
}
}
? ?jsp页面
?
?
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@taglib prefix="s" uri="/struts-tags" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>用户详情</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<div align="center">
jstl标签</br>
<c:choose>
<c:when test="${empty list}">
没有数据!<br>
</c:when>
<c:otherwise>
<c:forEach items="${list}" var="ls" >
用户名：${ls["username"] }</br>
</c:forEach>
</c:otherwise>
</c:choose>
struts2标签</br>
<s:iterator value="#request.list" var="ls" >
<s:if test="#ls.username!=''"> <!--判断空串 -->
<!-- 用户名：<s:property value="username"/></br>方法一 -->
用户名：<s:property value="#ls.username"/><!--方法二 --></br>
</s:if>
<s:else>
没有数据!<br>
</s:else>
</s:iterator>
</body>
</html>
?
?
?
