struts里的javabean取值问题

[mimi5211]

我写了一个从数据库中检索数据的程序，为什么在JSP页面里只能显示最后一个值啊。但是在用System.out.println(qxzmc)却能打印出所有的啊，
下面是程序，大家帮看看啊
qxzActipn:
try{
String sql = "select * from td_qxzdm order by qxzdm";
ConnectDB db=new ConnectDB();
ResultSet rs = db.executeQuery(sql);

//while(rs != null && rs.next())
while(rs.next())
{
//int qxzdm=rs.getInt(qxzdm);

String qxzmc=rs.getString("qxzmc");
String pyip=rs.getString("pyip");
String glip=rs.getString("glip");

request.setAttribute("qxzmc",qxzmc);
request.setAttribute("pyip",pyip);
request.setAttribute("glip",glip);
System.out.println(qxzmc);
QxzBean pb=new QxzBean();
//pb.setQxzdm(qxzdm);
pb.setQxzmc(qxzmc);
pb.setPyip(pyip);
pb.setGlip(glip);
request.setAttribute("qxzbean",pb);
//String ip = request.getRemoteAddr();
//System.out.println(ip);
//response.sendRedirect("sucess.jsp");
}
return mapping.findForward("success");
}
catch(Exception e)
{
request.setAttribute("error","3");
response.sendRedirect("error.jsp");
e.printStackTrace();
}
JSP：
<tr>
<th>权限组名称</th>
<th>评阅IP</th>
<th>管理IP</th><p>
</tr>
<tr>
<td><bean:write name="qxzbean" property="qxzmc"></bean:write></td>
<td><bean:write name="qxzbean" property="pyip"></bean:write></td>
<td><bean:write name="qxzbean" property="glip"></bean:write></td>
</tr>

[fosjos]

没有循环，所以只有一个
request.setAttribute("qxzbean",pb);每次覆盖前者
要用数组组合一下
jsp用logic:iterate
去找些例子看看吧

[gxiaoqiang1987]

你在action中应该先声明一个List，然后在while循环里每次创建好一个QxzBean对象并且设置好它的属性后，把它加到List对象中，在循环结束后把List对象放进request中，jsp页面中用logic:iterate 标签或者像这样

<%
			List userList = (List)request.getAttribute("userlist");
			if (userList == null || userList.size() == 0) {
		%>
			<tr>
				<td colspan="3">没有符合条件的数据!</td>
			</tr>
		<%
			}else {
				for (Iterator iter=userList.iterator(); iter.hasNext(); ) {
					User user = (User)iter.next();
		%>
			<tr>
				<td><bean:write name="u" property="username"/></td>
				<td><bean:write name="u" property="age"/></td>
			        <td><bean:write name="u" property="group.name"/></td>
			</tr>
		<%
				}
			}
		%>

[加油馒头]

既然确定值是取出来了

那就是保存显示的问题了，看下怎么保存，怎么显示的

[加油馒头]

while(rs.next())
{
//int qxzdm=rs.getInt(qxzdm);

String qxzmc=rs.getString("qxzmc");
String pyip=rs.getString("pyip");
String glip=rs.getString("glip");

request.setAttribute("qxzmc",qxzmc);
request.setAttribute("pyip",pyip);
request.setAttribute("glip",glip);
System.out.println(qxzmc);
QxzBean pb=new QxzBean();
//pb.setQxzdm(qxzdm);
pb.setQxzmc(qxzmc);
pb.setPyip(pyip);
pb.setGlip(glip);
request.setAttribute("qxzbean",pb);
//String ip = request.getRemoteAddr();
//System.out.println(ip);
//response.sendRedirect("sucess.jsp");
}


随便看了下，你这里是循环吧，每次到 request.setAttribut都重新设值了吧！
所以只保留了最后了一个