使用JS调用WebService接口

<script>
        $(document).ready(function () {

            var username = "admin";
            var password = "123456";

　　　　　　　/*==JS使用HTTP-POST方式调用WebService接口（仅IE调试）==*/
            //var host_url = "http://localhost/Interface/Login.asmx/Login?UserName=" + username + "&Password=" + password ;

            var url = "http://localhost/Interface/Login.asmx/Login";
            var xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
            xmlHttp.open("POST", url, false);
            xmlHttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
            xmlHttp.send("UserName=" + username + "&Password=" + password);

            if (xmlHttp.readyState == 4) {
                if (xmlHttp.status == 200) {
                    document.getElementById("page").innerHTML = xmlHttp.responseText;
                } else {
                    alert(" not 200! =" + xmlHttp.status);
                }
            } else {
                alert(" not 4! =" + xmlHttp.readyState);
            }

            /*==JS使用SOAP方式调用WebService接口（仅IE调试）==*/
            //SOAP1.2请求数据格式（请参照http://localhost/Interface/Login.asmx/Login?op=Login）

            var data;
            data = '<?xml version="1.0" encoding="utf-8"?>';
            data = data + '<soap12:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap12="http://www.w3.org/2003/05/soap-envelope">';
            data = data + '<soap12:Body>';
            data = data + '<Login xmlns="http://mmp.test.com/DataInterface/">';
            data = data + '<UserName>' + username;
            data = data + '</UserName>';
            data = data + '<Password>' + password;
            data = data + '</Password>';
            data = data + '</Login>';
            data = data + '</soap12:Body>';
            data = data + '</soap12:Envelope>';

            var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
            xmlhttp.open("POST", "http://localhost/Interface/Login.asmx", false);
            xmlhttp.setRequestHeader("Content-Type", "application/soap+xml");
            xmlhttp.send(data);
            document.getElementById("page12").innerHTML = xmlhttp.responseText;
        });
    </script>