Javascript+xmlhttp調用Webservice

來源:互聯網
上載者:User

1.  建立webservice,為了免於落俗我稍稍修改了建立webserice的預設webmethod。^_^
using System;
using System.Web;
using System.Web.Services;
using System.Web.Services.Protocols;

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

        //Uncomment the following line if using designed components
        //InitializeComponent();
    }

    [WebMethod]
    public string SayHelloTo(string Name) {
        return "Hello "+Name;
    }
   
}
還是俗了點。:)

2. js調用webservice+xmlhttp的實現部分。

<html>
<title>
Call webservice with javascript and xmlhttp.
</title>
<body>
<script language="javascript">

//Test function with get method.
function RequestByGet(data){

var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
//Webservice location.
var URL="http://localhost:1323/WebSite6/Service.asmx/SayHelloTo?Name=Zach";
xmlhttp.Open("GET",URL, false);
xmlhttp.SetRequestHeader ("Content-Type","text/xml; charset=utf-8");
xmlhttp.SetRequestHeader ("SOAPAction","http://tempuri.org/SayHelloTo");
xmlhttp.Send(data);
var result = xmlhttp.status;
//OK
if(result==200) {
document.write(xmlhttp.responseText);
}
xmlhttp = null;
}

//Test function with post method
function RequestByPost(value)
{
var data;
data = '<?xml version="1.0" encoding="utf-8"?>';
data = data + '<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">';
data = data + '<soap:Body>';
data = data + '<SayHelloTo xmlns="http://tempuri.org/">';
data = data + '<Name>'+value+'</Name>';
data = data + '</SayHelloTo>';
data = data + '</soap:Body>';
data = data + '</soap:Envelope>';

var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
var URL="http://localhost:1323/WebSite6/Service.asmx";
xmlhttp.Open("POST",URL, false);
xmlhttp.SetRequestHeader ("Content-Type","text/xml; charset=gb2312");
xmlhttp.SetRequestHeader ("SOAPAction","http://tempuri.org/SayHelloTo");
xmlhttp.Send(data);
document.write( xmlhttp.responseText);

}

</Script>

<input type="button" value="CallWebserviceByGet" onClick="RequestByGet(null)">
<input type="button" value="CallWebserviceByPost" onClick="RequestByPost('Zach')">

</body>
</html>
對於使用post方法需要發送的那堆東東可以在webservice的測試頁面中找到,自己拼湊加上對應的參數就可以。

我發現用post方法的時候響應很慢,是因為用Post方法時發送的資料多的原因嗎?

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