<%@ WebService Language="C#" class=MyMath %> using System; using System.Web.Services; public class MyMath { [WebMethod] public int add(int a, int b) { return a + b; } [WebMethod] public int subtract(int a, int b) { return a - b; } } 然后发布,先得到其wsdl。 2、首先,我们要下载webbehavior.htc这个文件(可以到http://msdn.microsoft.com/downloads/samples/internet/behaviors/library/webservice/default.asp.) 去下载,然后放到你的web当前目录下 然后在要调用webserice的页面中,修改如下 <body> <div id="addservice" style="behavior:url(webservice.htc)"></div> </body> 这里我们将div id命名为有意义的名称,并且指定style为 webservice行为。接着,我们要书写javascript来调用webserice了: 首先,我们在javascript中,调用其wsdladdservice.useService("http://localhost/services/math.asmx?WSDL","MyMath"); 使用id.useService(WSDLL路径,简单的命名方式); 我们之前设定的id是addservice,而为了给客户端调用方便,我们这里起了名称,叫MyMath。而为了保证能正确调用webserice,必须在body里的onload事件里,马上加载处理webservice调用的javascript,如下 <script language="JavaScript"> function init() { addservice.useService("http://localhost/services/math.asmx?WSDL","MyMath"); } </script> <body onload="init()"> <div id="service" style="behavior:url(webservice.htc)"> </div> </body>
在上面,我们通过webservice行为,首先得到了返回webservice的wsdl,接下来我们要进行调用了,调用的格式如下: iCallID = id.FriendlyName.callService([CallbackHandler,] "MethodName", Param1, Param2, ...); 这里id是我们在div里设置的id,而FridndbyName是我们刚才为方面而起的命,这里就是MyMath了,而CallbackHandler是使用回调函数的过程名,如果无设置的话,则默认是使用onresult所调用的方法来进行处理,下文会讲到,而param1,,param2等则是说传入的参数了,如: <SCRIPT language="JavaScript"> // All these variables must be global, // because they are used in both init() and onresult(). var iCallID = 0; var intA = 5; var intB = 6; function init() { // Establish the friendly name "MyMath" for the WebServiceURL service.useService("/services/math.asmx?WSDL","MyMath"); // The following method doesn't specify a callback handler, so onWSresult() is used iCallID = service.MyMath.callService("add", intA, intB); } function onWSresult() { // if there is an error, and the call came from the call() in init()