关于Request.QueryString

Question

例如地址栏:
http://localhost:19304/BalloonShopTest/Catalog.aspx?DepartmentID=1&CategoryID=1string departmentId = Request.QueryString["DepartmentID"];
string categoryId = Request.QueryString["CategoryID"];为什么categoryId是空的，取不到值1

Answer 1

aspx?DepartmentID=1&CategoryID=1 把&换成&试试

Answer 2

一般 我们地址栏上的是这样儿的
http://localhost:19304/BalloonShopTest/Catalog.aspx?DepartmentID=1&CategoryID=1

Answer 3

http://localhost:19304/BalloonShopTest/Catalog.aspx?DepartmentID=1&CategoryID=1&换成& 
string departmentId = Request.QueryString["DepartmentID"];
string categoryId = Request.QueryString["CategoryID"];

Answer 4

就像楼上那样了，你以为是webconfig里面伪静态配置呀

Answer 5

aspx?DepartmentID=1&CategoryID=1
1楼正解

Answer 6

怎么换啊
 private static string BuildAbsolute(string relativeUri)
    {
        Uri uri = HttpContext.Current.Request.Url;
        string app = HttpContext.Current.Request.ApplicationPath;
        if (!app.EndsWith("/"))
        {
            app += "/";
        }
        relativeUri = relativeUri.TrimStart('/');
        return HttpUtility.HtmlEncode
            (string.Format("http://{0}:{1}{2}{3}", uri.Host, uri.Port, app, relativeUri));
    }
return BuildAbsolute(String.Format("Catalog.aspx?DepartmentID={0}&CategoryID={1}", departmentID, categoryID));
连接符amp;是net自动在地址栏加的,下面状态栏显示是没的

Answer 7

http://localhost:19304/BalloonShopTest/Catalog.aspx?DepartmentID=1&CategoryID=1
红色部分换掉
http://localhost:19304/BalloonShopTest/Catalog.aspx?DepartmentID=1&CategoryID=1

Answer 8

你对URL进行了HtmlEncode 在获取的时候HtmlDecode解码下吧.

Answer 9

HtmlEncode： 将 Html 源文件中不允许出现的字符进行编码，通常是编码以下字符"<"、">"、"&" 等。HtmlDecode： 刚好跟 HtmlEncode 相关，解码出来原本的字符。

Answer 10

string str=String.Format("Catalog.aspx?DepartmentID={0}&CategoryID={1}", departmentID, categoryID);
str = str.Replace("&amp;","&");