Question

我有一个简单的ASP.NET Web服务：

using System;
using System.Collections.Generic;
using System.Web;
using System.Web.Services;
using System.Web.Script.Services;
using System.Web.Script.Serialization;
using System.Web.UI.WebControls;
using System.Web.UI;

namespace WebService1
{
    /// <summary>
    /// Summary description for Service1
    /// </summary>
    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [System.ComponentModel.ToolboxItem(false)]
    [ScriptService]
    public class Service1 : System.Web.Services.WebService
    {
        [WebMethod]
        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
        public string Get()
        {
            member mem = new member();
            mem.hello = "hello hello hello";
            mem.kalon = "fafasdf";
            mem.name = "wfasdfawe";
            return new JavaScriptSerializer().Serialize(mem);
        }

        [WebMethod]
        public string HelloWorld()
        {
            return "Hello World";
        }
    }

    public class member
    {
        public string hello { get; set; }
        public string name { get; set; }
        public string kalon { get; set; }
    }
}

我正面临使用WebClient从SilverLight检索字符串的问题。你能开导我吗？我使用下面的代码从WebService获取字符串。

WebClient wc = new WebClient();

public MainPage()
{
    InitializeComponent();
    wc.DownloadStringCompleted += new DownloadStringCompletedEventHandler(wc_DownloadStringCompleted);
}

private void button1_Click(object sender, RoutedEventArgs e)
{
    Uri uri = new Uri("http://www.MyWeb.com/Service1.axms/Get");
    wc.DownloadStringAsync(uri);
}

void wc_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
{
    MessageBox.Show(e.Error.ToString());
    MessageBox.Show(e.Result);
}

我收到错误：

System.Security.SecurityException ---＆gt; System.Security.SecurityException：安全性错误。在System.Net.Browser.BrowserHttpWebRequest.InternalEndGetResponse（IAsyncResult asyncResult）在System.Net.Browser.BrowserHttpWebRequest。＆lt;＆gt; c_ DisplayClass5.b _4（Object sendState）在System.Net.Browser.AsyncHelper。＆lt;＆gt; c_ DisplayClass4.b _1（Object sendState） ---内部异常堆栈跟踪结束--- 在System.Net.Browser.AsyncHelper.BeginOnUI（SendOrPostCallback beginMethod，Object state）在System.Net.Browser.BrowserHttpWebRequest.EndGetResponse（IAsyncResult asyncResult）在System.Net.WebClient.GetWebResponse（WebRequest请求，IAsyncResult结果）在System.Net.WebClient.DownloadBitsResponseCallback（IAsyncResult结果）

我也试过这个，仍然得到同样的错误：

Uri uri = new Uri("http://www.MyWeb.com/Service1.axms?op=Get");
wc.DownloadStringAsync(uri);

另外1个问题：这样的网址是否正确获取字符串？

http://www.MyWeb.com/Service1.axms?op=Get

http://www.MyWeb.com/Service1.axms/Get

使用WebClient从ASP.NET Web服务错误中下载字符串

0 个答案: