学习Java6写WebServices-优快云博客

本文详细介绍如何使用Java6内置支持实现WebServices，包括服务端发布、客户端调用及在Tomcat中的部署。

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转载自：http://www.blogjava.net/vip01/archive/2006/12/21/89201.html

Java6发布了，其中一个吸引我的新特性就是原生支持WebServices。在这和大家分享下学习心得。
下面就开始写个最简单的WebServices：

package org.hermit.study.jdk;

import javax.jws.WebMethod;
import javax.jws.WebService;
import javax.jws.soap.SOAPBinding;

@WebService(targetNamespace = " http://jdk.study.hermit.org/client " )
@SOAPBinding(style = SOAPBinding.Style.RPC)
public class Hello {
    @WebMethod
     public String sayHello(String name) {
         return " hello: " + name;
    }
}

怎么样简洁吧，很多朋友的写法还要在命令行中执行“ wsgen –cp . <path> ”
用偶这种方法写的service可以省去上面这步。

targetNamespace = "http://jdk.study.hermit.org/client"这句是指定客户端获取服务端服务后存放的类路径。注意是反着的，http: //jdk.study.hermit.org/client在客户端生成的类会放在org.hermit.study.jdk.client包下。
下面是发布服务：

package org.hermit.study.jdk;

import javax.xml.ws.Endpoint;

public class StartService {

public static void main(String[] args) {

Endpoint.publish("http://localhost:8080/HelloService", new Hello());

}

呵呵，更简洁。一句话而已。
http://localhost:8080/HelloService是指发布的地址

运行 StartService ，开发浏览器输入：http://localhost:8080/HelloService?wsdl

如果能看到以下内容，就可以

<? xml version="1.0" encoding="UTF-8" ?>
- < definitions xmlns ="http://schemas.xmlsoap.org/wsdl/" xmlns:tns ="http://jdk.study.hermit.org/client" xmlns:xsd ="http://www.w3.org/2001/XMLSchema" xmlns:soap ="http://schemas.xmlsoap.org/wsdl/soap/" targetNamespace ="http://jdk.study.hermit.org/client" name ="HelloService" >
   < types />
- < message name ="sayHello" >
   < part name ="arg0" type ="xsd:string" />
   </ message >
- < message name ="sayHelloResponse" >
   < part name ="return" type ="xsd:string" />
   </ message >
- < portType name ="Hello" >
- < operation name ="sayHello" parameterOrder ="arg0" >
   < input message ="tns:sayHello" />
   < output message ="tns:sayHelloResponse" />
   </ operation >
   </ portType >
- < binding name ="HelloPortBinding" type ="tns:Hello" >
   < soap:binding style ="rpc" transport ="http://schemas.xmlsoap.org/soap/http" />
- < operation name ="sayHello" >
   < soap:operation soapAction ="" />
- < input >
   < soap:body use ="literal" namespace ="http://jdk.study.hermit.org/client" />
   </ input >
- < output >
   < soap:body use ="literal" namespace ="http://jdk.study.hermit.org/client" />
   </ output >
   </ operation >
   </ binding >
- < service name ="HelloService" >
- < port name ="HelloPort" binding ="tns:HelloPortBinding" >
   < soap:address location ="http://localhost:8080/HelloService" />
   </ port >
   </ service >
   </ definitions >

学习Java6(一) WebServices （2）客户端

在 Java6 WebServices （一）服务端这篇文章中和大家分享了Java6 WebServices 服务端的写法，光有服务端还不行，还要有客户端才行啊。看了一些网友的相关文章，都只给出了服务端的写法，没有说客户端怎么说。经过一番研究，终于搞定了客户端，今天偶就和大家分享下。
首先启动 Java6 WebServices （一）服务端一文中写好的服务端。
新建个项目。命令行到src目录执行，
wsimport -keep http://localhost:8080/HelloService?wsdl
会自动生成一些代码。

package org.hermit.study.jdk.client;

import javax.jws.WebMethod;
import javax.jws.WebParam;
import javax.jws.WebResult;
import javax.jws.WebService;
import javax.jws.soap.SOAPBinding;

/**
* This class was generated by the JAXWS SI.
* JAX-WS RI 2.0_02-b08-fcs
* Generated source version: 2.0
*
*/
@WebService(name = " Hello " , targetNamespace = " http://jdk.study.hermit.org/client " )
@SOAPBinding(style = SOAPBinding.Style.RPC)
public interface Hello {

     /**
     *
     * @param arg0
     * @return
     *     returns java.lang.String
      */
    @WebMethod
    @WebResult(partName = " return " )
     public String sayHello(
        @WebParam(name = " arg0 " , partName = " arg0 " )
        String arg0);

}

package org.hermit.study.jdk.client;

import java.net.MalformedURLException;
import java.net.URL;
import javax.xml.namespace.QName;
import javax.xml.ws.Service;
import javax.xml.ws.WebEndpoint;
import javax.xml.ws.WebServiceClient;

/**
* This class was generated by the JAXWS SI.
* JAX-WS RI 2.0_02-b08-fcs
* Generated source version: 2.0
*
*/
@WebServiceClient(name = " HelloService " , targetNamespace = " http://jdk.study.hermit.org/client " , wsdlLocation = " http://localhost:8080/HelloService?wsdl " )
public class HelloService
     extends Service
{

     private final static URL HELLOSERVICE_WSDL_LOCATION;

     static {
        URL url = null ;
         try {
            url = new URL( " http://localhost:8080/HelloService?wsdl " );
        } catch (MalformedURLException e) {
            e.printStackTrace();
        }
        HELLOSERVICE_WSDL_LOCATION = url;
    }

     public HelloService(URL wsdlLocation, QName serviceName) {
         super (wsdlLocation, serviceName);
    }

     public HelloService() {
         super (HELLOSERVICE_WSDL_LOCATION, new QName( " http://jdk.study.hermit.org/client " , " HelloService " ));
    }

     /**
     *
     * @return
     *     returns Hello
      */
    @WebEndpoint(name = " HelloPort " )
     public Hello getHelloPort() {
         return (Hello) super .getPort( new QName( " http://jdk.study.hermit.org/client " , " HelloPort " ), Hello. class );
    }

}

下面我们再写个测试，看看能不能用：

package org.hermit.study.jdk.client.test;

import org.hermit.study.jdk.client.Hello;
import org.hermit.study.jdk.client.HelloService;

public class TestClient {
     public static void main(String[] args) {
        HelloService service = new HelloService();
        Hello _hello = service.getHelloPort();
        System.out.println(_hello.sayHello( " hermit " ));
    }
}

执行。
控制台输出：
hello:hermit

ok！搞定。
java6搞定web service就这么简单。。。。。。。。。。。。。。。。。。。。。。。。。。

xfire危险了。。。。。。。。。。。。。。。。。。。。。。。。

学习Java6(一) WebServices （3）在tomcat中发布

为了满足广大网友的要求，今天抽时间搞了下WebServices 在tomcat中的发布
相关文章：
tomcat启动时自动加载servlet
学习Java6(一) WebServices （1）服务端
 学习Java6(一) WebServices （2）客户端

新建一个servlet，偶太，能少打一个字符都是好的，所以servlet写的非常简洁，也适合初学者看得懂。。。。。。。。。。
WebServiceStarter.java

1 import javax.servlet.ServletException;
2 import javax.servlet.http.HttpServlet;
3 import javax.xml.ws.Endpoint;
4
5 public class WebServiceStarter extends HttpServlet {
6
7      private static final long serialVersionUID = 5870534239093709659L ;
8
9      public WebServiceStarter() {
10          super ();
11     }
12
13      public void destroy() {
14          super .destroy();
15     }
16
17      public void init() throws ServletException {
18         System.out.println( " 准备启动服务 " );
19         Endpoint.publish( " http://localhost:8080/HelloService " , new Hello());
20         System.out.println( " 服务启动完毕 " );
21     }
22 }
23

web service类Hello.java也是非常简单

1
2
3 import javax.jws.WebMethod;
4 import javax.jws.WebService;
5 import javax.jws.soap.SOAPBinding;
6
7 @WebService(targetNamespace = " http://jdk.study.hermit.org/client " )
8 @SOAPBinding(style = SOAPBinding.Style.RPC)
9 public class Hello {
10     @WebMethod
11      public String sayHello(String name) {
12          return " hello: " + name;
13     }
14 }

web.xml

1 <? xml version="1.0" encoding="UTF-8" ?>
2 < web-app version ="2.4" xmlns ="http://java.sun.com/xml/ns/j2ee"
3     xmlns:xsi ="http://www.w3.org/2001/XMLSchema-instance"
4     xsi:schemaLocation ="http://java.sun.com/xml/ns/j2ee
5     http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" >
6      < servlet >
7          < servlet-name > WebServiceStarter </ servlet-name >
8          < servlet-class > WebServiceStarter </ servlet-class >
9          < load-on-startup > 1 </ load-on-startup >
10      </ servlet >
11 </ web-app >
12

ok
就这三个文件。。。。。。。。。啥jar都不要。。。。
发布，启动服务器
2007-1-5 13:28:37 org.apache.catalina.core.AprLifecycleListener init
信息: The Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: G:\JDK6\bin;F:\tomcat6\bin
2007-1-5 13:28:37 org.apache.coyote.http11.Http11Protocol init
信息: Initializing Coyote HTTP/1.1 on http-8080
2007-1-5 13:28:37 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 937 ms
2007-1-5 13:28:38 org.apache.catalina.core.StandardService start
信息: Starting service Catalina
2007-1-5 13:28:38 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/6.0.7
2007-1-5 13:28:38 org.apache.catalina.core.StandardHost start
信息: XML validation disabled
2007-1-5 13:28:38 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: contextInitialized()
2007-1-5 13:28:38 org.apache.catalina.core.ApplicationContext log
信息: SessionListener: contextInitialized()
准备启动服务
服务启动完毕
2007-1-5 13:28:39 org.apache.coyote.http11.Http11Protocol start
信息: Starting Coyote HTTP/1.1 on http-8080
2007-1-5 13:28:39 org.apache.jk.common.ChannelSocket init
信息: JK: ajp13 listening on /0.0.0.0:8009
2007-1-5 13:28:39 org.apache.jk.server.JkMain start
信息: Jk running ID=0 time=16/62 config=null
2007-1-5 13:28:39 org.apache.catalina.startup.Catalina start
信息: Server startup in 1969 ms

访问： http://localhost:8080/HelloService?wsdl

1    <? xml version="1.0" encoding="UTF-8" ?>
2 - < definitions xmlns ="http://schemas.xmlsoap.org/wsdl/" xmlns:tns ="http://jdk.study.hermit.org/client" xmlns:xsd ="http://www.w3.org/2001/XMLSchema" xmlns:soap ="http://schemas.xmlsoap.org/wsdl/soap/" targetNamespace ="http://jdk.study.hermit.org/client" name ="HelloService" >
3    < types />
4 - < message name ="sayHello" >
5    < part name ="arg0" type ="xsd:string" />
6    </ message >
7 - < message name ="sayHelloResponse" >
8    < part name ="return" type ="xsd:string" />
9    </ message >
10 - < portType name ="Hello" >
11 - < operation name ="sayHello" parameterOrder ="arg0" >
12    < input message ="tns:sayHello" />
13    < output message ="tns:sayHelloResponse" />
14    </ operation >
15    </ portType >
16 - < binding name ="HelloPortBinding" type ="tns:Hello" >
17    < soap:binding style ="rpc" transport ="http://schemas.xmlsoap.org/soap/http" />
18 - < operation name ="sayHello" >
19    < soap:operation soapAction ="" />
20 - < input >
21    < soap:body use ="literal" namespace ="http://jdk.study.hermit.org/client" />
22    </ input >
23 - < output >
24    < soap:body use ="literal" namespace ="http://jdk.study.hermit.org/client" />
25    </ output >
26    </ operation >
27    </ binding >
28 - < service name ="HelloService" >
29 - < port name ="HelloPort" binding ="tns:HelloPortBinding" >
30    < soap:address location ="http://localhost:8080/HelloService" />
31    </ port >
32    </ service >
33    </ definitions >

看到以上代码就ok！
客户端写法照旧

呵呵，这下大家满意了吧。。。。。。。。。
有冲动想把项目里的xfire撤掉了。。。。。。。。。。。。。。。。。