1:从WebService的工作模式上理解的话，它跟普通的Web程序（比如ASP、JSP等）并没有本质的区别，都是基于HTTP传输协议的程序。
2:WebService所使用的数据均是基于XML格式的。目前标准的WebService在数据格式上主要采用SOAP协议。SOAP协议实际上就是一种基于XML编码规范的文本协议。
在JDK1.6中JAX-WS规范定义了如何发布一个webService服务。
JAX-WS是指JavaApi for XML –WebService.
/**
* 将 Java 类标记为实现 Web Service，或者将 Java 接口标记为定义 Web Service 接口
*
*/
@WebService(targetNamespace="http://www.usst.cn",serviceName="MyService")
public class HelloService {
@WebMethod(operationName="hello")
@WebResult(name="return")
public String sayHello(
@WebParam(name="name")
String name,
@WebParam(name="age")
int age){
System.out.println("sayHello called...");
return "hello " + name;
}
@WebMethod(exclude=true)
public String sayHello2(String name){
System.out.println("sayHello called...");
return "hello " + name;
}
public static void main(String[] args) {
//参数1：绑定服务的地址 参数2：提供服务的实例
Endpoint.publish("http://192.168.1.101:5678/hello", new HelloService());
System.out.println("server ready...");
}
} public class App {
public static void main(String[] args) {
/**
* wsdl:<service name="HelloServiceService">
*/
HelloServiceService hss = new HelloServiceService();
/**
* wsdl:<port name="HelloServicePort" binding="tns:HelloServicePortBinding">
*/
HelloService soap = hss.getHelloServicePort();
String str = soap.sayHello("zhangsan");
System.out.println(str);
System.out.println(soap.getClass().getName());
}
}<html>
<head>
<title>通过ajax调用webservice服务</title>
<script>
var xhr;
function sendAjaxWS(){
xhr = new ActiveXObject("Microsoft.XMLHTTP");
//指定ws的请求地址
var wsUrl = "http://10.10.49.16:5678/hello";
//手动构造请求体
var requestBody = '<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" ' +
' xmlns:q0="http://service.usst.cn/" xmlns:xsd="http://www.w3.org/2001/XMLSchema "'+
' xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">'+
'<soapenv:Body><q0:sayHello><arg0>'+document.getElementById("msg").value+'</arg0> <arg1>10</arg1> </q0:sayHello></soapenv:Body></soapenv:Envelope>';
//打开连接
xhr.open("POST",wsUrl,true);
//重新设置请求头
xhr.setRequestHeader("content-type","text/xml;charset=utf8");
//设置回调函数
xhr.onreadystatechange = _back;
//发送请求
xhr.send(requestBody);
}
//定义回调函数
function _back(){
if(xhr.readyState == 4){
if(xhr.status == 200){
var ret = xhr.responseXML;
//解析xml
var eles = ret.getElementsByTagName("return")[0];
alert(eles.text);
}
}
}
</script>
</head>
<body>
<input type="text" id="msg" />
<input type="button" onclick="sendAjaxWS();" value="通过ajax调用webservice服务"/>
</body>
</html>public class App {
public static void main(String[] args) throws Exception {
// 指定webservice服务的请求地址
String wsUrl = "http://192.168.1.108:5678/hello";
URL url = new URL(wsUrl);
URLConnection conn = url.openConnection();
HttpURLConnection con = (HttpURLConnection) conn;
// 设置请求方式
con.setDoInput(true);
con.setDoOutput(true);
con.setRequestMethod("POST");
con.setRequestProperty("content-type", "text/xml;charset=UTF-8");
// 手动构造请求体
String requestBody = "<soapenv:Envelope xmlns:soapenv=\"http://schemas.xmlsoap.org/soap/envelope/\" "
+ " xmlns:q0=\"http://service.usst.cn/\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema \" "
+ " xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\">"
+ "<soapenv:Body><q0:sayHello><arg0>lisi</arg0> <arg1>10</arg1> </q0:sayHello></soapenv:Body></soapenv:Envelope>";
//获得输出流
OutputStream out = con.getOutputStream();
out.write(requestBody.getBytes());
out.close();
int code = con.getResponseCode();
if(code == 200){//服务端返回正常
InputStream is = con.getInputStream();
byte[] b = new byte[1024];
StringBuffer sb = new StringBuffer();
int len = 0;
while((len = is.read(b)) != -1){
String str = new String(b,0,len,"UTF-8");
sb.append(str);
}
System.out.println(sb.toString());
is.close();
}
con.disconnect();
}
}通过wsimport -s -p cn.usst.service . http://192.168.1.101:5678/hello导入接口类
public class App {
public static void main(String[] args) throws Exception {
Service s = Service.create(new URL("http://192.168.1.101:5678/hello?wsdl"), new QName("http://service.usst.cn/", "HelloServiceService"));
HelloService hs = s.getPort(new QName("http://service.usst.cn/","HelloServicePort"), HelloService.class);
String str = hs.sayHello("lisi", 10);
System.out.println(str);
System.out.println(hs.getClass().getSimpleName());
}
}原文：http://blog.csdn.net/ankeyuan/article/details/38616455