s:select的奇怪问题

xiandawang 2011-03-01 02:52:39

我用的struts2+spring+mybatis，我已经设断点调试，发现action里面的private List<CarBrand> carbrands这个List已经从数据库里取到值了，现在的情况是我的jsp页面打开后是空白的，就连input都没了。代码如下：
CbAction.java:

package com.ars.struts.car_book.action;



import java.util.List;

import javax.annotation.Resource;



import org.springframework.context.annotation.Scope;

import org.springframework.stereotype.Controller;



import com.ars.mybatis.car_book.entity.CarBrand;

import com.ars.mybatis.car_book.services.ICbService;



@Controller@Scope("prototype")

public class CbAction {

	@Resource ICbService cbService;

	

	private static final long serialVersionUID = 1L;

	

	private List<CarBrand> carbrands; 

	public List<CarBrand> getCarbrands() {

		return carbrands;

	}

	public void setCarbrands(List<CarBrand> carbrands) {

		this.carbrands = carbrands;

	}



	/**

	* 绑定厂牌

	* @return String 

	* @exception Exception

	*/

	public String cbManage() throws Exception {

		carbrands = cbService.getCarBrand();

		setCarbrands(carbrands);

		

		if (carbrands != null) {

			return "success";

		} else {

			return "error";

		}

	}

	

	

}

cbManage.jsp:

<%@ page contentType="text/html;charset=GBK"%>

<%@ taglib prefix="s" uri="/struts-tags"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"

 "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html>

	<head>

		<title>用车宝典-后台管理</title>

		

	</head>

	<body>

		<s:action name="cbManage" namespace="/cb"></s:action>

		test

		<form id="form1">

			<div>

				<s:select name="carbrand" id="carbrand" list="carbrands"

					listValue="brand_name" listKey="brand_id" headerKey="-1"

					headerValue="厂牌">

				</s:select>

				<input type="submit" value="test" />

			</div>

		</form>

	</body>

</html>

...全文

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qyjEmily 2011-03-01

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<s:select id="roleId" list="#request.roles" listValue="name" listKey="id" class="easyui-combobox">
</s:select>
id是你的表的id，list是保存在request或者session的值的变量，listValue是名称，listKey是名称对于的id，且id，listValue,listKey中的值都是数据库中字段在实体中对应的属性

xiandawang 2011-03-01