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几种调用WebService的方法

news 来源：原创 2024/5/17 19:44:27

几种调用WebService的方法

几种调用WebService的方法     选择自 Megres 的 Blog

1．  在JavaScript中调用WebService

<script language="javascript">

function PostRequestData(URL,data){

       var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");

       xmlhttp.Open("POST",URL, false);

       xmlhttp.SetRequestHeader ("Content-Type","text/xml; charset=utf-8");

       xmlhttp.SetRequestHeader ("SOAPAction","http://tempuri.org/myService/test/isNumner");



       try {

              xmlhttp.Send(data);

              var result = xmlhttp.status;

       }

       catch(ex) {

              return("0" + ex.description + "|" + ex.number);

       }

       if(result==200) {

              return("1" + xmlhttp.responseText);

       }

       xmlhttp = null;

}

function loadit(value){

       var url = 'http://localhost/myService/test.asmx';

       var data ;

       var r;



       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 + '<isNumner xmlns="http://tempuri.org/myService/test">';

    data = data + '<str>'+value+'</str>';

    data = data + '</isNumner>';

    data = data + '</soap:Body>';

    data = data + '</soap:Envelope>';



       r=PostRequestData(url,data);

       document.write(r);

}

loadit('5');

</script>

还可以使用微软的htc组件来实现，可以到这里下载:

http://msdn.microsoft.com/workshop/author/webservice/webservice.htc

<script language="javascript">

    function timer(){

        service.useService("http://localhost/myService/test.asmx?WSDL","test");

        service.test.callService(callback,"isNumner",'gdh');

     }



    function callback(res){

        if (!res.error)

            time.innerText=res.value;

    }

</script>

<div id="service" style="behavior:url(webservice.htc)"></div>

<span id="time"></span>

2. 在Asp中

<%@LANGUAGE="VBSCRIPT" CODEPAGE="936"%>

<%

             Dim strxml

        Dim str



        '定义soap消息

        strxml = "<?xml version='1.0' encoding='tf-8'?>"

        strxml = strxml & "<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/'>"

        strxml = strxml & "<soap:Body> "

              strxml = strxml & "<isNumner xmlns='http://tempuri.org/myService/test'>"

        strxml = strxml & "<str>4</str>"

        strxml = strxml & "</isNumner>"

              strxml = strxml & "</soap:Body>"

        strxml = strxml & "</soap:Envelope>"



        '定义一个XML的文档对象，将手写的或者接受的XML内容转换成XML对象

        'set x = createobject("Microsoft.DOMDocument")

        '初始化XML对象

        '将手写的SOAP字符串转换为XML对象

        ' x.loadXML strxml

        '初始化http对象

        Set h = createobject( "Microsoft.XMLHTTP")

        '向指定的URL发送Post消息

        h.open "POST", "http://localhost/myService/test.asmx", False

        h.setRequestHeader "Content-Type", "text/xml"

              h.setRequestHeader "SOAPAction", "http://tempuri.org/myService/test/isNumner"

        h.send (strxml)

        While h.readyState <> 4

        Wend

        '显示返回的XML信息

        str = h.responseText

        '将返回的XML信息解析并且显示返回值

        'Set x = createobject("MSXML2.DOMDocument")

        ' x.loadXML str



        'str = x.childNodes(1).Text



         response.write(str)

%>

3．在.net中

在.net中调用WebService就方便多了，没有必要自己写soap消息了，以上都是用XMLHTTP来发送WebService请求的，在.net只要添加了web引用，会自动为你创建一个代理类。然后使用代理类就像用自己定义的类一样方便。
作者Blog：http://blog.csdn.net/Megres/