转载:关于stuts2 接收map

最新推荐文章于 2019-08-19 14:54:29 发布

原创最新推荐文章于 2019-08-19 14:54:29 发布 · 127 阅读

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#JSP #Java #Struts #HTML

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本文介绍如何在Java中使用MapAction类与JSP页面进行参数传递和接收，通过index.jsp表单输入数据，成功将其传递至success.jsp页面并显示。

一、action的写法


package action.mapAction;

import java.util.Map;

public class MapAction {
 private Map<String, String> map;

 public String test() {
  System.out.println(map.size());
  return "success";
 }

 public Map<String, String> getMap() {
  return map;
 }

 public void setMap(Map<String, String> map) {
  this.map = map;
 }
}

二 jsp文件

2.1 传值页面 index.jsp


<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>
<%
 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">
 </head>

 <body>
  <form action="map!test">
   <input type="text" name="map['name']">
   <input type="text" name="map['password']">
   <input type="submit">
  </form>
 </body>
</html>

2.1 接受值页面




<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>
<%@ 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 'success.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">
 </head>

 <body>
  <s:iterator value="map" var="ha">
   <s:property value="#ha.key" />:<s:property value="#ha.value" /><br/>
  </s:iterator>
 </body>
</html>