为什么我的ajax呼叫不起作用？ [英] Why isn't my ajax call working?
问题描述
大家好。
承认我不熟悉客户端编码..
我想让这个ajax调用工作，但我可以弄清楚..
Hi guys.
Admitting that I'm not familiar with client-side coding..
I'm trying to get this ajax call working, but I can't figure it out..
function ShowAlert()
{
$.ajax(
{
type: "POST",
url: "DownladData.aspx/Alert",
data: "{}",
contentType: "application/json; charset=utf-8",
datatype: "json",
statusCode: {
404: function ()
{
alert('Method not found!');
}
},
success: function (msg) {
alert('Everything is ok!');
},
error: function (msg) {
alert('Error!!!')
}
});
}
虽然这是C＃代码
While this is the C# code
[WebMethod]
public static void Alert()
{
}
这是我通过该按钮进行ajax调用
And this is the button through which I make the ajax call
<input type="button" runat="server" önclick="ShowAlert();" value="Alert" />
此例程不会执行anithing，但我会除了一个警告，其中一切都是好消息，而不是错误!!!。
使用chrome调试器，我收到此消息：
无法加载资源：服务器响应状态为404（未找到）http：//localhost/AdminPages/DownloadData.aspx/Alert
其中Alert（）是DownloadData.aspx.cs文件中的WebMethod。
有什么建议吗？
非常感谢！
This routine doesn't do anithing, but I'd except an alert with the Everything is ok message, instead of an Error!!!.
Using chrome debugger, I get this message:
Failed to load resource: the server responded with a status of 404 (Not Found) http://localhost/AdminPages/DownloadData.aspx/Alert
where Alert() is the WebMethod in the DownloadData.aspx.cs file.
Any suggestion?
Thank you very much!
推荐答案
.ajax（
{
type： POST，
url：DownladData.aspx / Alert，
data： {}，
contentType： 应用/ JSON; charset = utf-8，
数据类型： json，
statusCode：{
404 ： function （）
{
alert（' 找不到方法！'）;
}
} ，
成功： function （msg）{
alert（' 一切都好！'）;
}，
错误： function （msg）{
alert（' 错误!!!'）
}
} ）;
}
.ajax( { type: "POST", url: "DownladData.aspx/Alert", data: "{}", contentType: "application/json; charset=utf-8", datatype: "json", statusCode: { 404: function () { alert('Method not found!'); } }, success: function (msg) { alert('Everything is ok!'); }, error: function (msg) { alert('Error!!!') } }); }
虽然这是C＃代码
While this is the C# code
[WebMethod]
public static void Alert()
{
}
这是按钮我做了ajax调用
And this is the button through which I make the ajax call
<input type="button" runat="server" önclick="ShowAlert();" value="Alert" />
这个例程没有不要做anithing，但我除了一个警告，其中一切都是好消息，而不是错误!!!。
使用chrome调试器，我得到这个消息：
无法加载资源：服务器响应状态为404（未找到）http：//localhost/AdminPages/DownloadData.aspx/Alert
其中Alert（）是DownloadData.aspx.cs文件中的WebMethod。
有什么建议吗？
非常感谢！
This routine doesn't do anithing, but I'd except an alert with the Everything is ok message, instead of an Error!!!.
Using chrome debugger, I get this message:
Failed to load resource: the server responded with a status of 404 (Not Found) http://localhost/AdminPages/DownloadData.aspx/Alert
where Alert() is the WebMethod in the DownloadData.aspx.cs file.
Any suggestion?
Thank you very much!
好吧，我找到了这个难题的解决方案。
我会报告我发现了什么来帮助所有其他人。
我的Ajax / Jquery代码没问题。
方法必须放在 .aspx页面的代码隐藏中（不确定它是否正常工作，即使放在母版页后面）它必须声明为 p ublic 。
您可以在通过jquery / ajax调用的aspx.cs方法中调用另一个方法，就像调用任何其他外部dll调用一样。
感谢所有人的帮助。
Well, I've found the solution to this puzzle.
I'll report what I've discovered to help all of the other people.
My Ajax/Jquery code was ok.
The method must be put in the codebehind of an .aspx page (not sure if it's working even if put behind a master page) and it has to be declared as public.
You can call another method from within the aspx.cs method called via jquery/ajax, as you would do with any other external dll call.
Thx everybody for your help.
我的猜测是您的错误处理错误。我不熟悉statusCode选项（可能是最近添加的？）
这是我检查错误状态的方法：
My guess would be that your error handling is wrong. I'm not familiar with statusCode option (maybe it was added recently?)
This is how I would check for the error status:
.
.
.
error: function (xhr, status, msg)
(jqXHR.status && xhr.status == 404){
alert(xhr.responseText); /* or your custom text*/
}else{
alert("Something else went wrong");
}
几种变体甚至错误地图在其中 [ ^ ]
如果这有帮助，请接受解决方案，以便其他人可以找到它。
Several variations and even error maps here[^]
If this helps, please accept the solution so other may find it.
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