从调用ASMX jQuery的Web服务 [英] calling asmx web service from jQuery

问题描述

我不能够从jQuery函数调用Web服务（ASMX）。

I am not able to call web service(asmx) from jQuery function.

这是说在调用Web服务的拒绝访问错误。这是工作在dev和本地机器，但我得到同样的错误。

It is saying "access denied" error while calling web service. It is working in the dev and local machine but I am getting the same error.

下面是我的Ajax调用

Here is my ajax call

$.ajax({
            type: "POST",
            url: "http://server.com/calculator.asmx/calculus",
            data: "{ 'userID': '" + $("#usrid").val() + "','password': '" + $("#password").val() + "' }",
            contentType: "application/json; charset=utf-8",
            dataType: "json",
            success: Success,
            error: Error
        });

我的Web服务

[WebService(Namespace = "http://www.company.com/webservices/calculus")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
[System.Web.Script.Services.ScriptService]

public class calculator : System.Web.Services.WebService
{

    [WebMethod]
    [System.Web.Script.Services.ScriptMethod(UseHttpGet=false, ResponseFormat = System.Web.Script.Services.ResponseFormat.Json)]
   public bool calculus(string userName, string password)
    {// my code}

该错误是在的http：//阿贾克斯。 googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js 功能
访问被拒绝的错误在e.username x.open（N，e.url，e.async，e.username，e.password）：x.open（N，e.url，e.async）;

The error is in http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js function and the "Access denied" error at e.username?x.open(n,e.url,e.async,e.username,e.password):x.open(n,e.url,e.async);

我已经包括[AspNetCompatibilityRequirements（RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed）与作为的 http://forums.asp.net/p/1570168/3935094.aspx 并没有能够解决的概率。任何一个可以帮助我关于这个。

I have included [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)] with the class as shown in http://forums.asp.net/p/1570168/3935094.aspx and not able to fix the prob. Can any one please help me regarding this.

感谢您

推荐答案

JSONP 是一个可行的办法，以解决该同源策略（又名跨站点脚本或XSS）的限制。它配备了自己的一套（例如，它只能用GET模式请求）的挑战，所以它肯定不是万能的。但它可能是值得你花时间给它看看。有一个像样的数目吧贴子计算器，它应该帮助您开始。

JSONP is a possible way to workaround the "same origin policy" (aka cross-site-scripting or XSS) limitations. It comes with its own set of challenges (for example, it works only with GET-mode requests), so it's certainly not a panacea. But it's probably worth your time to give it a look. There's a decent number of stackoverflow postings about it, which should help you get started.

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