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struts2--使用list属性同时处理多条注册信息

2017-08-08 14:45 429 查看

实现如下：

结果：

登录界面：

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<%
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>
<base href="<%=basePath%>">

<title>My JSP 'index.jsp' starting page</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>
<s:form action="login" method="post" theme="simple">
<table>

<tr>
<td align="center">用户名</td>
<td align="center">密码</td>
<td align="center">年龄</td>
</tr>

<s:iterator value="new int[3]" status="ss">
<tr>
<td><s:textfield name="%{'user['+ #ss.index +'].username'}"></s:textfield></td>
<td><s:password name="%{'user['+ #ss.index +'].password'}"></s:password></td>
<td><s:textfield name="%{'user['+ #ss.index +'].age'}"></s:textfield></td>
</tr>
</s:iterator>
</table>
<s:submit value="提交"></s:submit>
</s:form>
</body>
</html>

LoginAction:

package com.action;

import java.util.List;
import com.bean.User;
import com.opensymphony.xwork2.ActionSupport;

public class LoginAction extends ActionSupport{
private List<User> user;

public List<User> getUser() {
return user;
}

public void setUser(List<User> user) {
this.user = user;
}

public String execute() {
return SUCCESS;
}

}

结果界面：

<body>
<s:debug />
<table>
<tr>
<td align="center">用户名</td>
<td align="center">密码</td>
<td align="center">年龄</td>
</tr>
<s:iterator value="user">
<tr>
<td><s:property value="username" /></td>
<td><s:property value="password" /></td>
<td><s:property value="age" /></td>
</tr>
</s:iterator>
</table>
</body>

struts.xml:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.1.7//EN"
"http://struts.apache.org/dtds/struts-2.1.7.dtd">
<struts>
<package name="defalut" namespace = "/" extends = "struts-default">
<action name="login" class = "com.action.Lo
4000
ginAction">
<result>/ok.jsp</result>
</action>
</package>
</struts>

javaBean:

package com.bean;

public class User {
private String username ;
private String password ;
private String age ;

public String getAge() {
return age;
}

public void setAge(String age) {
this.age = age;
}

public User() {}

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;
}

}

由于Action中List使用了范性，无需类型转换配置文件，否则需要配置LoginAction-conversion.properties：

Element_user=com.bean.User

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