s:iterator 迭代不出数据

[code386]

在action中调用方法list

public String list() {

wcList = inventoryManager.listWoodCategory();

Iterator it = wcList.iterator();
while (it.hasNext()) {
WoodCategory wc = (WoodCategory) it.next();
logger.warn(wc.getName());
}
logger.warn("list excuted!");

return SUCCESS;
}


可以打印出值。

2012-4-25 0:07:51 org.apache.catalina.core.StandardContext reload
信息: Reloading Context with name [/hongmu] is completed
18858 [http-bio-8080-exec-36] WARN com.wxh.action.WoodCategoryAction - reeerer
18858 [http-bio-8080-exec-36] WARN com.wxh.action.WoodCategoryAction - 不需要
18858 [http-bio-8080-exec-36] WARN com.wxh.action.WoodCategoryAction - 我
18858 [http-bio-8080-exec-36] WARN com.wxh.action.WoodCategoryAction - 8
18858 [http-bio-8080-exec-36] WARN com.wxh.action.WoodCategoryAction - rtrtrtrt454
18858 [http-bio-8080-exec-36] WARN com.wxh.action.WoodCategoryAction - rt
18858 [http-bio-8080-exec-36] WARN com.wxh.action.WoodCategoryAction - list excuted!
25013 [http-bio-8080-exec-33] WARN com.wxh.service.impl.InventoryManagerImpl - 保存木材种类成功


在jsp页面中显示不出值

jsp代码是这样写的：
<table>
<tr>
<th>Name</th>

</tr>
<s:iterator value="wcList">
<tr>

<td><s:property value="name" /></td>

</tr>
</s:iterator>
</table>


求助：s:iterator代码应该如何写才能迭代出值？

[在路上_等你]

<s:iterator value="#request.wcList" var="wc">
<tr>

<td><s:property value="#wc.name" /></td>

</tr>
</s:iterator>

[不关橙猫猫事的哦]

你的wcList都没放入request中，而且struts2标签也写错了。。

request.setAttribute("wcList",wcList);



<s:iterator id="list" value="#request.wcList">
<s:property value="list.name"/>
</s:iterator>

[code386]

to chenshuangwtt
按你了你方法，在页面上还是没有数据显示，请再看看！

[zhangqh2012]

<s:iterator value="wcList" id="wc">
<tr>

<td><s:property value="name" /></td>

</tr>
</s:iterator>
加个id，并且要确认，该wclist有getter方法

[zjj911]

楼主你的action中没有get set方法吧！ 那样就无法在堆栈中注入数据！ 如果有的话！你在页面上加<s:debug> 标签看看里面有没有数据，有就是你取的不对，没有就是你没注入既get. set没有！

[碧玉笙]

检查下有没有get和set方法。

[code386]

to xiaoxiaojunjie
action中get set方法都有，上加<s:debug> 标签后显示下面的东东，我还不清楚是什么，请再指点！

[Debug]
Name
Object Property Name Property Value
com.wxh.model.WoodCategory id -1
name null
com.wxh.action.WoodCategoryAction texts null
model com.wxh.model.WoodCategory@43a30706
actionErrors []
errors {}
wcList []
fieldErrors {}
errorMessages []
woodCategory com.wxh.model.WoodCategory@43a30706
inventoryManager com.wxh.service.impl.InventoryManagerImpl@66ef7d74
container There is no read method for container
locale en_US
actionMessages []
com.opensymphony.xwork2.DefaultTextProvider texts null

[code386]

to zhangqh2012
加了id后也显示不出来，wclist有Getter方法

[zjj911]

[Quote=引用 7 楼 的回复:]

to xiaoxiaojunjie
action中get set方法都有，上加<s:debug> 标签后显示下面的东东，我还不清楚是什么，请再指点！

[Debug]
Name
ObjectProperty NameProperty Value
com.wxh.model.WoodCategory id -1
name null
com.wxh.action.WoodC……
[/Quote]
里面表示你wclist中是没有数据的，你肯定取不到了！ 你action中代码我有问题！ action代码贴出来！

[code386]

to xiaoxiaojunjie
package com.wxh.action;

import java.util.Iterator;
import java.util.List;
import java.util.ArrayList;
import javax.servlet.http.HttpServletRequest;
import org.apache.log4j.Logger;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

import com.wxh.model.WoodCategory;
import com.wxh.service.InventoryManager;

public class WoodCategoryAction extends ActionSupport implements
ModelDriven<WoodCategory> {
static final Logger logger = Logger.getLogger(WoodCategoryAction.class);

private WoodCategory woodCategory;
private InventoryManager inventoryManager;
private List<WoodCategory> wcList = new ArrayList<WoodCategory>();

@Override
public WoodCategory getModel() {
return woodCategory;
}

public String execute() {
return SUCCESS;
}

public void save() {
inventoryManager.save(woodCategory);
}

public String list() {

wcList = inventoryManager.listWoodCategory();

Iterator it = wcList.iterator();
while (it.hasNext()) {
WoodCategory wc = (WoodCategory) it.next();
logger.warn(wc.getName());
}
logger.warn("list excuted!");

return SUCCESS;
}

public WoodCategory getWoodCategory() {
return woodCategory;
}

public void setWoodCategory(WoodCategory woodCategory) {
this.woodCategory = woodCategory;
}

public InventoryManager getInventoryManager() {
return inventoryManager;
}

public void setInventoryManager(InventoryManager inventoryManager) {
this.inventoryManager = inventoryManager;
}

public List<WoodCategory> getWcList() {
return wcList;
}

public void setWcList(List<WoodCategory> wcList) {
this.wcList = wcList;
}

}

[edward4408]

<s:iterator value="wcList" var="list">
		${list.name }
	</s:iterator>

[在路上_等你]

你的wcList是在action 上面定义 也就是说在放在了值栈中 在页面用Struts2标签是可以直接拿出来的
可以 用<s:debug></s:debug>看一看

  <s:iterator value="wcList" var="wc">
<tr>

<td><s:property value="#wc.name" /></td>

</tr>
</s:iterator>