取不到值

[hua6612]

<table>
<tr><th>subject</th><th>content</th></tr>
<s:property value="fld1"/>

<s:iterator value="msglist" id="msg">
<td><s:property value="subject"/></td>
<td><s:property value="content"/></td>
<td></td>

</s:iterator>
</table>


在action里显示msglist是存有值的。为什么JSP页面取不到了

[亲努力啊]

看看action

[devin_jia]

<table>
<tr><th>subject</th><th>content</th></tr>
<s:property value="fld1"/>
<s:set name="list" value="msglist" id="list"></s:set>
								<s:if test="#list.size>0">
									<s:iterator value="#list" var="lit">
										<td><s:property value="subject"/></td>
<td><s:property value="content"/></td>
									</s:iterator>
								</s:if>
</table>

[hua6612]

action:public String execute() throws Exception {
fld1="abc";
Umuser user = (Umuser) ActionContext.getContext().getSession().get("user");
System.out.println(user.getId());
List<Msg> msglist = imsgbiz.msgList(user.getId());
System.out.println(">>>>"+msglist);

return SUCCESS;
}

这里能取到msglist的值

[hua6612]

2楼
用了还是取不到= =
abc
subject content

[空白-键]

List<Msg> msglist = imsgbiz.msgList(user.getId());
你这样子当然是取不到的，你应该把msglist 设为action的一个属性

public XXAction ... {
  private List<Msg> msglist;

  getMsglist..
  setMsglist..

}

[hua6612]

这个我有的。
完整的Action是下面这个
package com.web.struts2.aciton;

import java.util.List;
import java.util.Map;

import org.apache.struts.action.ActionRedirect;
import org.apache.struts2.ServletActionContext;
import org.apache.struts2.interceptor.RequestAware;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;
import com.sun.org.apache.regexp.internal.recompile;
import com.web.biz.IMsgBiz;
import com.web.persistence.hibernate.pojo.Msg;
import com.web.persistence.hibernate.pojo.Umuser;

public class MsgListAction extends ActionSupport implements ModelDriven<Umuser>{
private Umuser model = new Umuser();
private IMsgBiz imsgbiz;
private List<Msg> msglist;
private String fld1;

public final String getFld1() {
return fld1;
}
public final void setFld1(String fld1) {
this.fld1 = fld1;
}
public Umuser getModel() {
// TODO Auto-generated method stub
return model;
}
public IMsgBiz getImsgbiz() {
return imsgbiz;
}
public void setImsgbiz(IMsgBiz imsgbiz) {
this.imsgbiz = imsgbiz;
}
@Override
public String execute() throws Exception {
// ActionContext context = ActionContext.getContext();
// Map params = context.getParameters();
// String username = (String)params.get("username");
fld1="abc";
// System.out.println(username+">>");
Umuser user = (Umuser) ActionContext.getContext().getSession().get("user");
System.out.println(user.getId());
// ServletActionContext.getRequest().setAttribute("msglist", msglist);
List<Msg> msglist = imsgbiz.msgList(user.getId());
System.out.println(">>>>"+msglist);

return SUCCESS;
}
public final List<Msg> getMsglist() {
return msglist;
}
public final void setMsglist(List<Msg> msglist) {
this.msglist = msglist;
}



}

[xinghen88]

你上面是把msglist作为action的属性了，但是你下面有重新定义了这个list对象，所以并没有把值存的action属性的那个msglistzhong，页面上当然获取不到了。把下面List<Msg> msglist = imsgbiz.msgList(user.getId());中的List<Msg>去掉

[hua6612]

谢谢。原来如此

[chaluhe003]

的确是 你重复定义了 msglist 但是你在jsp上 写的也有问题 不要加上ID 把ID去掉就可以了
<table>
<tr><th>subject</th><th>content</th></tr>
<s:property value="fld1"/>

<s:iterator value="msglist">
<td><s:property value="subject"/></td>
<td><s:property value="content"/></td>
<td></td>

</s:iterator>
</table>