我有简单的网络服务:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
namespace fmNVBwebSrv
{
/// <summary>
/// Summary description for fm
/// </summary>
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line.
[System.Web.Script.Services.ScriptService]
public class fm : System.Web.Services.WebService
{
[WebMethod]
public string HelloWorld(string callerName)
{
return "Hello World";
}
}
}
我正在尝试从 javaScript 调用它:
<head runat="server">
<title>Web Service call from client-side JavaScript</title>
<script language="javascript" type="text/javascript">
function SendRequest()
{
fm.HelloWorld(form1.MyTextBox.value, OnComplete, OnError,
OnTimeOut);
}
function OnComplete(arg)
{
alert(arg);
}
function OnTimeOut(arg)
{
alert("timeOut has occured");
}
function OnError(arg)
{
alert("error has occured: " + arg._message);
}
</script>
</head>
<body>
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server">
<Services>
<asp:ServiceReference Path="http://localhost:55661/fm.asmx" />
</Services>
</asp:ScriptManager>
<div>
<input type="text" value="" id="MyTextBox" />
<input type="button" value="Send Request to the Web Service"
id="RequestButton" onclick="return SendRequest()" />
</div>
</form>
</body>
我在控制台中遇到错误 Uncaught ReferenceError :fm 未定义。我是 Java 脚本新手。那里缺少什么？
最佳答案
我也遇到了同样的问题并解决了。调用方法时需要添加命名空间:
function SendRequest()
{
fmNVBwebSrv.fm.HelloWorld(form1.MyTextBox.value, OnComplete, OnError,
OnTimeOut);
}
希望这会有所帮助!
关于javascript - 从 Javascript 调用 WebService，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/33482190/