无法检索查询字符串参数。

Question

请求网址的示例：http:\\localhost\ChatWindow.aspx?username=sly_chandan

我的网络方法如下：

[WebMethod(EnableSession = true)]
public static List<PrivateMessage> GetMessages()
{
    List<PrivateMessage> getMsgsList = (List<PrivateMessage>)HttpContext.Current.Application["PrivateMessages"];
    var msgs = getMsgsList.Where(x => x.fromUsername == HttpContext.Current.Session["Username"].ToString() && x.toUsername == HttpContext.Current.Request.QueryString["username"]);
    return msgs.ToList();
}

我似乎无法检索查询字符串参数。

Answer 1

要获取查询字符串，您应该只需将方法更改为：

[WebMethod(EnableSession = true)]
public static List<PrivateMessage> GetMessages(string username)
{
    List<PrivateMessage> getMsgsList = (List<PrivateMessage>)HttpContext.Current.Application["PrivateMessages"];
    var msgs = getMsgsList.Where(x => x.fromUsername == HttpContext.Current.Session["Username"].ToString() && x.toUsername == username;
    return msgs.ToList();
}