从jQuery的调用ASMX

问题描述

我试图从jQuery的调用ASMX方法没有成功。以下是我的code，我不明白我错过了什么。

文件Something.js，

 函数setQuestion（）{
    $阿贾克斯（{
        键入：POST，
        数据：{}，
        数据类型：JSON
        网址：HTTP：//localhost/BoATransformation/Survey.asmx/GetSurvey
        的contentType：应用/ JSON的;字符集= UTF-8，
        成功：的onSuccess
    }）;
}功能的onSuccess（MSG）{
    $（＃questionCxt）追加（MSG）。
}
 

文件SomethingElse.cs，

  [WebService的空间（namespace =htt​​p://tempuri.org/）]
[WebServiceBinding（ConformsTo = WsiProfiles.BasicProfile1_1）
[System.Web.Script.Services.ScriptService]
公共类调查：System.Web.Services.WebService {    公众调查（）{
    }    [的WebMethod]
    [ScriptMethod（UseHttpGet =真）]
    公共字符串GetSurvey（）{
        返回问题：谁是史努比？
    }
}
 

解决方案

这突出的一件事是你 UseHttpGet = TRUE 但在你的jQuery code你使用POST。

另外这里是我创建调用一个ASMX页测试页。

  [的WebMethod]
公共目录[] GetCatalog（）
{
    目录[]目录=新目录[1];
    目录猫=新目录（）;
    cat.Author =吉姆;
    cat.BookName =他的著作;
    catalog.SetValue（猫，0）;
    返回目录;
}＆LT;脚本类型=文/ JavaScript的＆GT;
    $（文件）。就绪（函数（）{
    $阿贾克斯（{
            键入：POST，
            网址：default.asmx / GetCatalog
            缓存：假的，
            的contentType：应用/ JSON的;字符集= UTF-8，
            数据：{}，
            数据类型：JSON
            成功：handleHtml，
            错误：ajaxFailed
        }）;
    }）;    功能handleHtml（数据，状态）{
        对（在data.d VAR计数）{
            警报（data.d [计数] .Author）;
            警报（data.d [计数] .BookName）;
        }
    }    功能ajaxFailed（xmlRequest）{
        警报（xmlRequest.status +\\ n \\ r'+
              xmlRequest.statusText +\\ n \\ r'+
              xmlRequest.responseText）;
    }
＆LT; / SCRIPT＆GT;
 

I am trying to call an ASMX method from jQuery without success. Following is my code, and I don't understand what I am missing.

File Something.js,

function setQuestion() {
    $.ajax({
        type: "POST",
        data: "{}",
        dataType: "json",
        url: "http: //localhost/BoATransformation/Survey.asmx/GetSurvey",
        contentType: "application/json; charset=utf-8",
        success: onSuccess
    });
}

function onSuccess(msg) {
    $("#questionCxt").append(msg);
}

File SomethingElse.cs,

[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.Web.Script.Services.ScriptService]
public class Survey : System.Web.Services.WebService {

    public Survey () {
    }

    [WebMethod]
    [ScriptMethod(UseHttpGet = true)]
    public string GetSurvey() {
        return "Question: Who is Snoopy?";
    }
}

解决方案

One thing that stands out is you have UseHttpGet=true but in your jQuery code you are using POST.

Also here is a test page I created calling an ASMX page.

[WebMethod]
public Catalog[] GetCatalog()
{
    Catalog[] catalog = new Catalog[1];
    Catalog cat = new Catalog();
    cat.Author = "Jim";
    cat.BookName ="His Book";
    catalog.SetValue(cat, 0);
    return catalog;
}

<script type="text/javascript">
    $(document).ready(function() {
    $.ajax({
            type: "POST",
            url: "default.asmx/GetCatalog",
            cache: false,
            contentType: "application/json; charset=utf-8",
            data: "{}",
            dataType: "json",
            success: handleHtml,
            error: ajaxFailed
        });
    });

    function handleHtml(data, status) {
        for (var count in data.d) {
            alert(data.d[count].Author);
            alert(data.d[count].BookName);
        }
    }

    function ajaxFailed(xmlRequest) {
        alert(xmlRequest.status + ' \n\r ' +
              xmlRequest.statusText + '\n\r' +
              xmlRequest.responseText);
    }
</script>

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