使用jquery ajax调用asmx Web服务方法 [英] calling asmx web service method with jquery ajax
问题描述
我在IIS 7.5中使用简单的asmx Web服务托管了Web应用程序
I have hosted web application with simple asmx web service in IIS 7.5
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
namespace TestWebService
{
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
[System.Web.Script.Services.ScriptService]
public class Test : System.Web.Services.WebService
{
[WebMethod]
public static string HelloWorld()
{
return "Hello World";
}
}
}
当我单击 http：//localhost/Test/Test.asmx中的调用按钮？op = HelloWorld 它工作正常，但是当我尝试使用$ .ajax（）调用此方法时来自在ASP.NET开发服务器上运行的不同的Web应用程序项目（ http：// localhost：1756 / HTMLPage1.htm ）我得到一个错误response.status为0和不能调用web方法，这是我的代码。
when I click invoke button in http://localhost/Test/Test.asmx?op=HelloWorld it works fine but when I try to call this method by using $.ajax() from diffrent web application project which is running on ASP.NET development server (http://localhost:1756/HTMLPage1.htm) I got an error response.status as 0 and can't call the web method and here's my code.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Consume Test </title>
<script src="jquery-1.5.1.js" type="text/javascript"></script>
<script type="text/javascript">
function displayMessageCall() {
$.ajax({
type: "POST",
url: "http://localhost/Test/Test.asmx/HelloWorld",
data: '{}',
contentType: "application/json; charset=utf-8",
dataType: "json",
success: successMsg,
error: errorMsg
});
}
function successMsg(response) {
alert('Success');
}
function errorMsg(response) {
alert(response.status + " " + response.statusText)
}
$(document).ready(function () {
displayMessageCall();
});
</script>
</head>
<body>
</body>
</html>
我错过了什么吗？
推荐答案
我认为你刚刚遇到同源政策。
由于端口的不同，浏览器限制了javascript到达webservice。当然，有一些变通办法。
Because of the port difference, the browser is restricting the javascript from reaching the webservice. Of course, there are some workarounds.
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