Jquery 调用JAVA-Webservice

参考网上资料:
$(document).ready(function(){
$("#b").click(function(){
$.ajax({
contentType:"text/xml",
                    type: "POST",   //访问WebService使用Post方式请求
                    url: "http://192.168.0.146:8085/HelloWorldService?wsdl", //调用WebService的地址和方法名称组合---WsURL/方法名
                    data: getPostData(),
                    dataType: "xml",
                    success: function(result) {     //回调函数，result，返回值
//alert(result);
alert($(result).find('return').text());

                    },
error: function(x, e) {
alert('error:'+ x.responseText);
},
complete: function(x) {
//alert('complete:' x.responseText);
}
                 });
})
})
//定义满足SOAP协议的参数。
function getPostData()
{
//根据WSDL分析sayHelloWorld是方法名，parameters是传入参数名
var postdata="<?xml version=\"1.0\" encoding=\"utf-8\"?>";
postdata +="<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/\">";
postdata +="<soap:Body><getGreetings xmlns=\"http://tempuri.org/\">";
postdata +="<parameters>"+ '中文' +"</parameters>";
postdata +="</getGreetings></soap:Body>";
postdata +="</soap:Envelope>";
return postdata;
}