webservice:
就是应用程序之间跨语言的调用
wwww.webxml.com.cn
1.xml
2. wsdl: webservice description language web服务描述语言
通过xml格式说明调用的地址方法如何调用,可以看错webservice的说明书
3.soap simple object access protoacl (简单对象访问协议)
限定了xml的格式
soap 在http(因为有请求体,所以必须是post请求)的基础上传输xml数据
请求和响应的xml 的格式如: <Envelop>
<body>
//....
</body>
</Envelop>
operation name:服务提供的方法
静态方法不能发布为外部服务
运用jkd自带的代码生成访问服务器的客户端代码 E:/wsimort -s . http://test.cm/?wsdl
我们可以把webservice看做是web服务器上的一个应用,web服务器是webservice的一个容器
函数的参数在 http://test.cm/?xsd=1
JAX-WS是指 java api for xml -WebService
//测试 WebService服务的 explorer
Web Service Explorer 可以显示返回的xml格式
targetNamespace 默认为倒置的包名
客户端调用WebService的方式:
1.通过wximport生成代码
2.通过客户端编程方式
3.通过ajax调用方式
4.通过 URL Connection 方式调用
请求过程分析:
1.使用get方式获取wsdl文件,称为握手
2.使用post发出请求
3.服务器响应成功过

几种监听工具:
http watch
Web Service explorer
eclipse 自带工具 TCP/IP Monitor
服务端代码:
- <span style="font-size:18px;">package com.webservcie;
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- import javax.jws.WebMethod;
- import javax.jws.WebParam;
- import javax.jws.WebResult;
- import javax.jws.WebService;
- import javax.xml.ws.Endpoint;
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- @WebService(serviceName="MyService",targetNamespace="http://www.baidu.com")
- public class HelloService {
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- @WebMethod(operationName="AliassayHello")
- @WebResult(name="myReturn")
- public String sayHello(@WebParam(name="name") String name){
- return "hello: " + name;
- }
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- public String sayGoodbye(String name){
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- return "goodbye: " + name;
- }
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- @WebMethod(exclude=true)
- public String sayHello2(String name){
- return "hello " + name;
- }
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- public static void main(String[] args) {
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- Endpoint.publish("http://test.cm/", new HelloService());
- System.out.println("Server ready...");
- }
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- }</span>
1.客户端调用(wximport自动生成代码 【推荐】)
- <span style="font-size:18px;">package com.wsclient;
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- public class App {
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- public static void main(String[] args) {
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- MyService mywebService = new MyService();
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- HelloService hs = mywebService.getHelloServicePort();
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- System.out.println(hs.sayGoodbye("sjk"));
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- System.out.println(hs.aliassayHello("sjk"));
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- }
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- }</span>
2.通过ajax+js+xml调用
- <html>
- <head>
- <title>通过ajax调用WebService服务</title>
- <script>
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- var xhr = new ActiveXObject("Microsoft.XMLHTTP");
- function sendMsg(){
- var name = document.getElementById('name').value;
- //服务的地址
- var wsUrl = 'http://192.168.1.100:6789/hello';
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- //请求体
- var soap = '<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:q0="http://ws.itcast.cn/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">' +
- ' <soapenv:Body> <q0:sayHello><arg0>'+name+'</arg0> </q0:sayHello> </soapenv:Body> </soapenv:Envelope>';
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- //打开连接
- xhr.open('POST',wsUrl,true);
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- //重新设置请求头
- xhr.setRequestHeader("Content-Type","text/xml;charset=UTF-8");
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- //设置回调函数
- xhr.onreadystatechange = _back;
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- //发送请求
- xhr.send(soap);
- }
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- function _back(){
- if(xhr.readyState == 4){
- if(xhr.status == 200){
- //alert('调用Webservice成功了');
- var ret = xhr.responseXML;
- var msg = ret.getElementsByTagName('return')[0];
- document.getElementById('showInfo').innerHTML = msg.text;
- //alert(msg.text);
- }
- }
- }
- </script>
- </head>
- <body>
- <input type="button" value="发送SOAP请求" onclick="sendMsg();">
- <input type="text" id="name">
- <div id="showInfo">
- </div>
- </body>
- </html>
3.URL Connection方式
- import java.io.InputStream;
- import java.io.OutputStream;
- import java.net.HttpURLConnection;
- import java.net.URL;
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- public class App {
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- public static void main(String[] args) throws Exception {
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- URL wsUrl = new URL("http://192.168.1.100:6789/hello");
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- HttpURLConnection conn = (HttpURLConnection) wsUrl.openConnection();
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- conn.setDoInput(true);
- conn.setDoOutput(true);
- conn.setRequestMethod("POST");
- conn.setRequestProperty("Content-Type", "text/xml;charset=UTF-8");
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- OutputStream os = conn.getOutputStream();
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- String soap = "<soapenv:Envelope xmlns:soapenv=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:q0=\"http://ws.itcast.cn/\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\">" +
- "<soapenv:Body> <q0:sayHello><arg0>aaa</arg0> </q0:sayHello> </soapenv:Body> </soapenv:Envelope>";
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- os.write(soap.getBytes());
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- InputStream is = conn.getInputStream();
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- byte[] b = new byte[1024];
- int len = 0;
- String s = "";
- while((len = is.read(b)) != -1){
- String ss = new String(b,0,len,"UTF-8");
- s += ss;
- }
- System.out.println(s);
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- is.close();
- os.close();
- conn.disconnect();
- }
- }
4.客户单编程方式(和第一种方式一样)
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- import javax.jws.WebMethod;
- import javax.jws.WebParam;
- import javax.jws.WebResult;
- import javax.jws.WebService;
- import javax.xml.bind.annotation.XmlSeeAlso;
- import javax.xml.ws.RequestWrapper;
- import javax.xml.ws.ResponseWrapper;
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- @WebService(name = "HelloService", targetNamespace = "http://ws.itcast.cn/")
- @XmlSeeAlso({
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- })
- public interface HelloService {
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- @WebMethod
- @WebResult(targetNamespace = "")
- @RequestWrapper(localName = "sayHello", targetNamespace = "http://ws.itcast.cn/", className = "cn.itcast.ws.client.SayHello")
- @ResponseWrapper(localName = "sayHelloResponse", targetNamespace = "http://ws.itcast.cn/", className = "cn.itcast.ws.client.SayHelloResponse")
- public String sayHello(
- @WebParam(name = "arg0", targetNamespace = "")
- String arg0);
-
- }
- import java.net.MalformedURLException;
- import java.net.URL;
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- import javax.xml.namespace.QName;
- import javax.xml.ws.Service;
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- import cn.itcast.ws.wsimport.HelloService;
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- public class App {
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- public static void main(String[] args) throws Exception {
- URL wsdlUrl = new URL("http://192.168.1.100:6789/hello?wsdl");
- Service s = Service.create(wsdlUrl, new QName("http://ws.itcast.cn/","HelloServiceService"));
- HelloService hs = s.getPort(new QName("http://ws.itcast.cn/","HelloServicePort"), HelloService.class);
- String ret = hs.sayHello("zhangsan");
- System.out.println(ret);
- }
- }