小编Dav*_*son的帖子

症状:当我发出Web服务请求时(从使用.ajax的JQuery到ASP.NET .asmx文件),如果是使用GET而不是POST,则.asmx文件始终返回XML而不是JSON.如果我将回拨转回帖子,它会像JSON一样响应.

目标:如何使用HTTP GET获取JSON而不是XML？

我已经有了相当多的谷歌搜索,这不是通常的嫌疑人,如缺少ScriptService或没有在web.config中注册处理程序.它的行为就像脚本处理程序工厂只处理帖子？请帮助我指出正确的方向!

服务器代码:

namespace mynamespace
{
    /// <summary>
    /// Summary description for ServiceAddresses
    /// </summary>
    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [ToolboxItem(false)]
    [System.Web.Script.Services.ScriptService]
    public class MyService : System.Web.Services.WebService
    {
        [WebMethod]
        [ScriptMethod(ResponseFormat = ResponseFormat.Json, UseHttpGet = true)]
        public string HelloWorld()
        {
            return "Hello World at " + DateTime.Now.ToLongTimeString();
        }
    }
}

客户代码:

function testhelloworld(postorget) {
    var webMethod = '/servicedir/MyService.asmx/HelloWorld';
    $.ajax({
        type: ('GET'===postorget)?'GET':'POST',
        url: webMethod,
        contentType: 'application/json; charset=utf-8',
        dataType: 'json',
        data: "{}",
        success: function(msg) {
            $('#info').text(msg.d);
        },
        error: function(xhr, …

HttpContext.Current.ApplicationInstance.CompleteRequest似乎什么都不做.我错过了什么？

例如,尽管在每个有趣的事件期间都调用了CompleteRequest,但以下所有事件仍然在一个简单的测试页面上运行.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;

namespace LifeCycle
{
    public partial class _Default_NoMasterPage : System.Web.UI.Page
    {
        private int count = 0;

        protected override void OnInit(EventArgs e)
        {
            nextLabel("InitBeforeBase");
            base.OnInit(e);
            HttpContext.Current.ApplicationInstance.CompleteRequest();
            nextLabel("Init");
        }

        protected override void OnInitComplete(EventArgs e)
        {
            nextLabel("InitCompleteBeforeBase");
            base.OnInitComplete(e);
            HttpContext.Current.ApplicationInstance.CompleteRequest();
            nextLabel("InitComplete");
        }

        protected override void OnLoad(EventArgs e)
        {
            nextLabel("OnLoadBeforeBase");
            base.OnLoad(e);
            HttpContext.Current.ApplicationInstance.CompleteRequest();
            nextLabel("OnLoad");
        }

        protected override void OnLoadComplete(EventArgs e)
        {
            nextLabel("OnLoadCompleteBeforeBase");
            base.OnLoadComplete(e);
            HttpContext.Current.ApplicationInstance.CompleteRequest();
            nextLabel("OnLoadComplete");
        }

        protected override void OnPreInit(EventArgs e) …