struts2批量封装对象

不知道大家是否遇过这样情况,在一个页面里同时提交几个对象，例如，在发布产品的页面，同时发布几个产品.

 

package org.cric.model;

import java.util.Date;

/**
 * 产品持久化类
 * @author Administrator
 *
 */
public class Product {

	private String name;
	
	private double price;
	
	private Date createDate;

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public double getPrice() {
		return price;
	}

	public void setPrice(double price) {
		this.price = price;
	}

	public Date getCreateDate() {
		return createDate;
	}

	public void setCreateDate(Date createDate) {
		this.createDate = createDate;
	}
}

 

 

 

package org.cric.action;

import java.util.List;

import org.cric.model.Product;

import com.opensymphony.xwork2.Action;
import com.opensymphony.xwork2.ActionSupport;

public class ProductAction extends ActionSupport {
	
	private List<Product> products;

	public List<Product> getProducts() {
		return products;
	}

	public void setProducts(List<Product> products) {
		this.products = products;
	}
	
	//////////////////////////////////////
	//////////////////////////////////////
	public String execute() throws Exception
	{
		for(Product p:products){
			System.out.println(p.getName()+"--"+p.getPrice()+"--"+p.getCreateDate());
		}
		return Action.SUCCESS;
	}
}

 

 

 

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd" >
<struts>
	<package name="product" extends="json-default">
		<action name="addProduct" class="org.cric.action.ProductAction">
			<result>/showproducts.jsp</result>
		</action>
	</package>
</struts>

 

 

 

<s:form action="addProduct" theme="simple">
		<table>
			<tr>
				<td>商品名称</td>
				<td>商品价格</td>
				<td>生成日期</td>
			</tr>
			<s:iterator value="new int[3]" status="stat">
				<tr>
					<td><s:textfield name="%{'products['+#stat.index+'].name'}"/></td>
					<td><s:textfield name="%{'products['+#stat.index+'].price'}"/></td>
					<td><s:textfield name="%{'products['+#stat.index+'].createDate'}"/></td>
				</tr>
			</s:iterator>
			<tr>
				<td colspan="3"><s:submit value="提交"/></td>
			</tr>
		</table>
	</s:form>

 

 

<table border="1">
		<tr>
			<td>商品名称</td>
			<td>商品价格</td>
			<td>生成日期</td>
		</tr>
		<s:iterator value="products" status="stat">
			<tr>
				<td><s:property value="name"/></td>
				<td><s:property value="price"/></td>
				<td><s:property value="createDate"/></td>
			</tr>
		</s:iterator>
	</table>

 

 

在addProducts.jsp的<s：textfield>的name为%{'products['+stat.index+']'.name},%{exp}格式表示使用OGNL表达式,上述表达式的相对于<%="products["+stat.index+"].name"%>