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从 Html 调用服务

发布于 2024-10-04 18:06:18 字数 70 浏览 0 评论 0原文

我想从java脚本调用asp.net web服务并将参数传递给它。是否有任何代码示例或演示可以帮助我实现这一目标？提前致谢

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罗罗贝儿 2024-10-11 18:06:18

jQuery：

function AddLocation(ParentID) {
    $.ajax({
        type: "POST",
        url: "../server.asmx/Save",
        data: "{'ID':'0','ParentID':'" + ParentID + "'}",
        contentType: "application/json; charset=utf-8",
        dataType: "json",
        success: function (data) {
            var item = document.createElement('option');
            item.value = data.d.split("$")[0];
            item.text = name;
            //do stuff
        }
    });
}

JQuery:

function AddLocation(ParentID) {
    $.ajax({
        type: "POST",
        url: "../server.asmx/Save",
        data: "{'ID':'0','ParentID':'" + ParentID + "'}",
        contentType: "application/json; charset=utf-8",
        dataType: "json",
        success: function (data) {
            var item = document.createElement('option');
            item.value = data.d.split("$")[0];
            item.text = name;
            //do stuff
        }
    });
}

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穿透光 2024-10-11 18:06:18

jQuery 支持这种行为。您可以使用 jQuery 进行 ajax 调用，如下所示。该方法有两个成功和失败的回调函数。

function loadData()
{
    $.ajax({
        type: "POST",
        contentType: "application/json; charset=utf-8",
        dataType: "json",
        url: 'methodurl',
        success: methodSuccedded,
        error: methodFailure
    });
}

function methodSuccedded()
{
    //do your logic.
}

function methodFailure()
{
    //do your logic.
}

jQuery supports this behavior. you can use jQuery to do the ajax call as show below. this method has two call back functions for success and for failure.

function loadData()
{
    $.ajax({
        type: "POST",
        contentType: "application/json; charset=utf-8",
        dataType: "json",
        url: 'methodurl',
        success: methodSuccedded,
        error: methodFailure
    });
}

function methodSuccedded()
{
    //do your logic.
}

function methodFailure()
{
    //do your logic.
}

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み零 2024-10-11 18:06:18

您可以使用 AJAX 来执行此操作，并以 JSON 对象的形式从服务器获取响应。

    var xmlHttp = new ActiveXObject("Microsoft.XmlHttp");
    var url = "Service1.svc/ajaxEndpoint/";
    url = url + "Sum2Integers";
    var body = '{"n1":';
    body = body + document.getElementById("num1").value + ',"n2":';
    body = body + document.getElementById("num2").value + '}';

    // Send the HTTP request
    xmlHttp.open("POST", url, true);
    xmlHttp.setRequestHeader("Content-type", "application/json");
    xmlHttp.send(body);

    // Create result handler 
    xmlHttp.onreadystatechange= function X()
    {

         if(xmlHttp.readyState == 4)
         {
              result.innerText = xmlHttp.responseText;
         }
    }

获取 JSON 格式的响应将帮助您将其评估为对象，并且您可以通过 JavaScript 对其进行操作。

请参阅这些链接以供参考：
http://blogs.msdn.com/b/alikl/archive/2008/02/18/how-to-consume-wcf-using-ajax-without-asp-net.aspx

http://dotnetslackers.com/articles/ajax/JSON-EnabledWCFServicesInASPNET35.aspx

You can do so, using AJAX, and get the response from the server as an JSON object.

    var xmlHttp = new ActiveXObject("Microsoft.XmlHttp");
    var url = "Service1.svc/ajaxEndpoint/";
    url = url + "Sum2Integers";
    var body = '{"n1":';
    body = body + document.getElementById("num1").value + ',"n2":';
    body = body + document.getElementById("num2").value + '}';

    // Send the HTTP request
    xmlHttp.open("POST", url, true);
    xmlHttp.setRequestHeader("Content-type", "application/json");
    xmlHttp.send(body);

    // Create result handler 
    xmlHttp.onreadystatechange= function X()
    {

         if(xmlHttp.readyState == 4)
         {
              result.innerText = xmlHttp.responseText;
         }
    }

Getting the response as JSON would help you evualte it asn object and u can act on it through JavaScript.

See these links for reference:
http://blogs.msdn.com/b/alikl/archive/2008/02/18/how-to-consume-wcf-using-ajax-without-asp-net.aspx

http://dotnetslackers.com/articles/ajax/JSON-EnabledWCFServicesInASPNET35.aspx

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