问个web session问题-每次session里的值都会变
action代码:public String addChaim(){
//session
//application
List<Claimvoucherdetail> lco=null;
HttpServletRequest request=ServletActionContext.getRequest();
HttpSession session=request.getSession();
if(session.getAttribute("lcos")==null){
lco=new ArrayList<Claimvoucherdetail>();
lco.add(claimvoucherdetail);
}else{
lco=(List<Claimvoucherdetail>)session.getAttribute("lcos");
lco.add(claimvoucherdetail);
}
session.setAttribute("lcos", lco);
lco=(List<Claimvoucherdetail>)session.getAttribute("lcos");
return SUCCESS;
}
jsp代码：
<s:iterator id="claimvoucherdetail" value="#session.lcos">
<tr>
<td>
<s:property value="claimvoucherdetail.cvditem"/>
<s:property value="claimvoucherdetail.cvdaccount"/>
<s:property value="claimvoucherdetail.cvddes"/>
</td>
</tr>
</s:iterator>
当代码运行到lco=(List<Claimvoucherdetail>)session.getAttribute("lcos");
这时loc是null,
而运行到lco.add(claimvoucherdetail);
这时loc长度是N个而且所有值都变成一样的 --------------------编程问答-------------------- 新手在线等回复 --------------------编程问答-------------------- public String addChaim(){
List<Claimvoucherdetail> lco=null;
HttpServletRequest request=ServletActionContext.getRequest();
HttpSession session=request.getSession();
if(session.getAttribute("lcos")==null){
lco=new ArrayList<Claimvoucherdetail>();
lco.add(claimvoucherdetail);
}else{
lco=(List<Claimvoucherdetail>)session.getAttribute("lcos");
lco.add(claimvoucherdetail);
}
session.setAttribute("lcos", lco);
lco=(List<Claimvoucherdetail>)session.getAttribute("lcos");
return SUCCESS;
}
jsp代码：
<s:iterator id="claimvoucherdetail" value="#session.lcos">
<tr>
<td>
<s:property value="claimvoucherdetail.cvditem"/>
<s:property value="claimvoucherdetail.cvdaccount"/>
<s:property value="claimvoucherdetail.cvddes"/>
</td>
</tr>
</s:iterator>
整理下代码方便查看 --------------------编程问答-------------------- 你好，请问一下claimvoucherdetail
是什么东西； --------------------编程问答-------------------- 一个对象名称 --------------------编程问答--------------------
