action接受前台参数—属性接收和实体模型接收 -

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2013-06 ( 6)
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action接受前台参数—属性接收和实体模型接收

博客分类：

struts2

struts

struts2中的action接收客户端页面传递过来的数据
在此例中使用了属性接收和domain Model的类型接收。在使用domain Model接收参数的时候要注意JSP页面<input/>标签中name的值要写成实体.实体属性的这种形式，否则action中接收不到该对象的属性值。具体示例代码如下：

客户端提交数据页面：clientCommitData.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>客户端提交数据的页面</title>
  
	<!--
	<link rel="stylesheet" type="text/css" href="styles.css">
	-->

  </head>
  
  <body>
    <form action="${pageContext.request.contextPath }/getParameter_getParameter" method="post">
    	id:<input type="text" name="id"/><br/>
    	name:<input type="text" name="name"/><br/>
    	birthday:<input type="text" name="birthday"/><br/>
    	age:<input type="text" name="person.age"/><br/>
    	sex:<input type="text" name="person.sex"/><br/>
    	<input type="submit" value="测试action接受客户端提交的数据"/>
    </form>
  </body>
</html>

显示用户提交的数据：showParameter.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>数据显示页面</title>
	<!--
	<link rel="stylesheet" type="text/css" href="styles.css">
	-->

  </head>
  
  <body>
  	在此页面显示另一个页面提交到action的数据<br/>
  	${id }-----id<br/>
  	${name }-----name<br/>
  	${birthday }----birthday<br/>
  	${person.age }-----person.age<br/>
  	${person.sex }-----person.sex
  </body>
</html>

接收客户端提交数据的action：GetParameterAction.java

package com.sinwee.action;

import com.opensymphony.xwork2.ActionSupport;
import com.sinwee.domain.Person;

public class GetParameterAction extends ActionSupport {

	/**
	 * 
	 */
	private static final long serialVersionUID = -7145253382234265183L;
	
	private String id;
	private String name;
	private String birthday;
	private Person person;
	public String getId() {
		return id;
	}
	public void setId(String id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getBirthday() {
		return birthday;
	}
	public void setBirthday(String birthday) {
		this.birthday = birthday;
	}
	public Person getPerson() {
		return person;
	}
	public void setPerson(Person person) {
		this.person = person;
	}

	public String getParameter() {
		
		System.out.println (id + " 前台获取id");
		System.out.println (name + " 前台获取name");		
		System.out.println (birthday + " 前台获取birthday");
		System.out.println (this.person.getAge() + " 前台获取人员的age");
		System.out.println (this.person.getSex() + " 前台获取人员的sex");
		
		return "parameter";
	}
	
}

struts.xml配置文件：

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>
    <package name="getParameter" namespace="" extends="struts-default">
       <action name="getParameter_*" class="com.sinwee.action.GetParameterAction" method="{1}">
       	<result name="parameter">
       		/showParameter.jsp
       	</result>
       </action>
    </package>
    
    <!-- Add packages here -->

</struts>

web.xml配置文件：

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 
	xmlns="http://java.sun.com/xml/ns/javaee" 
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
	http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
	 <filter>
		<filter-name>struts2</filter-name>
		<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
	 </filter>
	 <filter-mapping>
		<filter-name>struts2</filter-name>
		<url-pattern>/*</url-pattern>
	 </filter-mapping>
</web-app>