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java调用webservice的四种方式

JAVA SpringMVC+mybatis（oracle 和 mysql） HTML5 全新高大尚后台框架 bootstrap

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：

[java] view plain copy print ?

<span style= "font-size:18px;" > package com.webservcie;
import javax.jws.WebMethod;
import javax.jws.WebParam;
import javax.jws.WebResult;
import javax.jws.WebService;
import javax.xml.ws.Endpoint;
/**
* WebService
*/
@WebService (serviceName= "MyService" ,targetNamespace= "http://www.baidu.com" )
public class HelloService {
@WebMethod (operationName= "AliassayHello" )
@WebResult (name= "myReturn" )
public String sayHello( @WebParam (name= "name" ) String name){
return "hello: " + name;
}
public String sayGoodbye(String name){
return "goodbye: " + name;
}
@WebMethod (exclude= true ) //当前方法不被发布出去
public String sayHello2(String name){
return "hello " + name;
}
public static void main(String[] args) {
/**
* 参数1：服务的发布地址
* 参数2：服务的实现者
* Endpoint 会重新启动一个线程
*/
Endpoint.publish( "http://test.cm/" , new HelloService());
System.out.println( "Server ready..." );
}
}</span>

<span style="font-size:18px;">package com.webservcie; import javax.jws.WebMethod; import javax.jws.WebParam; import javax.jws.WebResult; import javax.jws.WebService; import javax.xml.ws.Endpoint; /**  * 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(serviceName="MyService",targetNamespace="http://www.baidu.com") public class HelloService {  @WebMethod(operationName="AliassayHello")  @WebResult(name="myReturn")  public String sayHello(@WebParam(name="name") String name){   return  "hello: " + name;  }  public String sayGoodbye(String name){   return  "goodbye: " + name;  }  @WebMethod(exclude=true)//当前方法不被发布出去  public String sayHello2(String name){   return "hello " + name;  }  public static void main(String[] args) {   /**    * 参数1：服务的发布地址    * 参数2：服务的实现者    *  Endpoint  会重新启动一个线程    */   Endpoint.publish("http://test.cm/", new HelloService());   System.out.println("Server ready...");  } }</span>

JAVA SpringMVC+mybatis（oracle 和 mysql） HTML5 全新高大尚后台框架 bootstrap

1.客户端调用（wximport自动生成代码【推荐】）

[java] view plain copy print ?

<span style= "font-size:18px;" > package com.wsclient;
public class App {
/**
* 通过wsimport 解析wsdl生成客户端代码调用WebService服务
*
* @param args
*
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
/**
* <service name="MyService">
* 获得服务名称
*/
MyService mywebService = new MyService();
/**
*/
HelloService hs = mywebService.getHelloServicePort();
/**
* 调用方法
*/
System.out.println(hs.sayGoodbye( "sjk" ));
System.out.println(hs.aliassayHello( "sjk" ));
}
}</span>

<span style="font-size:18px;">package com.wsclient;  public class App {      /**      * 通过wsimport 解析wsdl生成客户端代码调用WebService服务      *       * @param args      *       */     public static void main(String[] args) {         // TODO Auto-generated method stub                  /**          * <service name="MyService">          * 获得服务名称          */         MyService mywebService = new MyService();                  /**          * <port name="HelloServicePort" binding="tns:HelloServicePortBinding">          */         HelloService hs = mywebService.getHelloServicePort();                  /**          * 调用方法          */         System.out.println(hs.sayGoodbye("sjk"));                  System.out.println(hs.aliassayHello("sjk"));                                }  }</span>

2.通过ajax+js+xml调用

[html] view plain copy print ?

< html >
< head >
< title > 通过ajax调用WebService服务 </ title >
< script >
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' ;
//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 > ';
//打开连接
xhr.open('POST',wsUrl,true);
//重新设置请求头
xhr.setRequestHeader("Content-Type","text/xml; charset = UTF -8");
//设置回调函数
xhr.onreadystatechange = _back ;
//发送请求
xhr.send(soap);
}
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 >

<html>  <head>   <title>通过ajax调用WebService服务</title>   <script>    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';     //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>';     //打开连接     xhr.open('POST',wsUrl,true);     //重新设置请求头     xhr.setRequestHeader("Content-Type","text/xml;charset=UTF-8");     //设置回调函数     xhr.onreadystatechange = _back;     //发送请求     xhr.send(soap);    }    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>

[java] view plain copy print ?

import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
/**
* 通过UrlConnection调用Webservice服务
*
*/
public class App {
public static void main(String[] args) throws Exception {
//服务的地址
URL wsUrl = new URL( "http://192.168.1.100:6789/hello" );
HttpURLConnection conn = (HttpURLConnection) wsUrl.openConnection();
conn.setDoInput( true );
conn.setDoOutput( true );
conn.setRequestMethod( "POST" );
conn.setRequestProperty( "Content-Type" , "text/xml;charset=UTF-8" );
OutputStream os = conn.getOutputStream();
//请求体
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>" ;
os.write(soap.getBytes());
InputStream is = conn.getInputStream();
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);
is.close();
os.close();
conn.disconnect();
}
}

import java.io.InputStream; import java.io.OutputStream; import java.net.HttpURLConnection; import java.net.URL; /**  * 通过UrlConnection调用Webservice服务  *  */ public class App {  public static void main(String[] args) throws Exception {   //服务的地址   URL wsUrl = new URL("http://192.168.1.100:6789/hello");   HttpURLConnection conn = (HttpURLConnection) wsUrl.openConnection();   conn.setDoInput(true);   conn.setDoOutput(true);   conn.setRequestMethod("POST");   conn.setRequestProperty("Content-Type", "text/xml;charset=UTF-8");   OutputStream os = conn.getOutputStream();   //请求体   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>";   os.write(soap.getBytes());   InputStream is = conn.getInputStream();   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);   is.close();   os.close();   conn.disconnect();  } }

4.客户单编程方式（和第一种方式一样）

[java] view plain copy print ?

//文件名：HelloService.java
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;
/**
* This class was generated by the JAX-WS RI.
* JAX-WS RI 2.1.6 in JDK 6
* Generated source version: 2.1
*
*/
@WebService (name = "HelloService" , targetNamespace = "http://ws.itcast.cn/" )
@XmlSeeAlso ({
})
public interface HelloService {
/**
*
* @param arg0
* @return
* returns java.lang.String
*/
@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);
}

//文件名：HelloService.java  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;   /**  * This class was generated by the JAX-WS RI.  * JAX-WS RI 2.1.6 in JDK 6  * Generated source version: 2.1  *   */ @WebService(name = "HelloService", targetNamespace = "http://ws.itcast.cn/") @XmlSeeAlso({      }) public interface HelloService {       /**      *       * @param arg0      * @return      *     returns java.lang.String      */     @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);  }

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