让我们假设一家企业正在一个集中式系统中维护用户身份验证详细信息。 我们需要创建一个AuthenticationService，它将获取凭据，对其进行验证并返回状态。 其余的应用程序将使用AuthenticationService对用户进行身份验证。

创建AuthenticationService接口，如下所示：

package com.sivalabs.caas.services;
import javax.jws.WebService;import com.sivalabs.caas.domain.AuthenticationStatus;
import com.sivalabs.caas.domain.Credentials;
import com.sivalabs.caas.exceptions.AuthenticationServiceException;@WebService
public interface AuthenticationService
{
public AuthenticationStatus authenticate(Credentials credentials) throws AuthenticationServiceException;
}

package com.sivalabs.caas.domain;
/*** @author siva**/
public class Credentials
{private String userName;private String password;public Credentials()
{}public Credentials(String userName, String password) {super();this.userName = userName;this.password = password;}//setters and getters}

package com.sivalabs.caas.domain;/*** @author siva**/
public class AuthenticationStatus
{private String statusMessage;private boolean success;//setters and getters}

package com.sivalabs.caas.exceptions;/*** @author siva**/
public class AuthenticationServiceException extends RuntimeException
{private static final long serialVersionUID = 1L;public AuthenticationServiceException(){}public AuthenticationServiceException(String msg){super(msg);}
}

现在让我们实现AuthenticationService。

package com.sivalabs.caas.services;import java.util.HashMap;
import java.util.Map;import javax.jws.WebService;import com.sivalabs.caas.domain.AuthenticationStatus;
import com.sivalabs.caas.domain.Credentials;
import com.sivalabs.caas.exceptions.AuthenticationServiceException;/*** @author siva**/
@WebService(endpointInterface="com.sivalabs.caas.services.AuthenticationService",serviceName="AuthenticationService", targetNamespace="http://sivalabs.blogspot.com/services/AuthenticationService")
public class AuthenticationServiceImpl implements AuthenticationService
{private static final Map<string, string> CREDENTIALS = new HashMap<string, string>();static{CREDENTIALS.put("admin", "admin");CREDENTIALS.put("test", "test");  }@Overridepublic AuthenticationStatus authenticate(Credentials credentials) throws AuthenticationServiceException{if(credentials == null){throw new AuthenticationServiceException("Credentials is null");}AuthenticationStatus authenticationStatus = new AuthenticationStatus();String userName = credentials.getUserName();String password = credentials.getPassword();if(userName==null || userName.trim().length()==0 || password==null || password.trim().length()==0){authenticationStatus.setStatusMessage("UserName and Password should not be blank");authenticationStatus.setSuccess(false);}else{if(CREDENTIALS.containsKey(userName) && password.equals(CREDENTIALS.get(userName))){authenticationStatus.setStatusMessage("Valid UserName and Password");authenticationStatus.setSuccess(true);}else{authenticationStatus.setStatusMessage("Invalid UserName and Password");authenticationStatus.setSuccess(false);}}return authenticationStatus;}
}

为了简单起见，我们在此针对存储在HashMap中的静态数据检查凭据。 在实际的应用程序中，将针对数据库执行此检查。

现在，我们将发布WebService。

package com.sivalabs.caas.publisher;import javax.xml.ws.Endpoint;import com.sivalabs.caas.services.AuthenticationServiceImpl;public class EndpointPublisher
{public static void main(String[] args){Endpoint.publish("http://localhost:8080/CAAS/services/AuthenticationService", new AuthenticationServiceImpl());}}

运行此独立的类以发布AuthenticationService。

要检查服务是否已成功发布，请将浏览器指向URL http：// localhost：8080 / CAAS / services / AuthenticationService？wsdl。 如果服务成功发布，您将看到WSDL内容。

现在，让我们创建一个独立测试客户端来测试Web服务。

package com.sivalabs.caas.client;import java.net.URL;import javax.xml.namespace.QName;
import javax.xml.ws.Service;import com.sivalabs.caas.domain.AuthenticationStatus;
import com.sivalabs.caas.domain.Credentials;
import com.sivalabs.caas.services.AuthenticationService;/*** @author siva**/
public class StandaloneClient
{public static void main(String[] args) throws Exception{URL wsdlUrl = new URL("http://localhost:8080/CAAS/services/AuthenticationService?wsdl");QName qName = new QName("http://sivalabs.blogspot.com/services/AuthenticationService", "AuthenticationService");Service service = Service.create(wsdlUrl,qName);AuthenticationService port = service.getPort(AuthenticationService.class);Credentials credentials=new Credentials();credentials.setUserName("admin1");credentials.setPassword("admin");AuthenticationStatus authenticationStatus = port.authenticate(credentials);System.out.println(authenticationStatus.getStatusMessage());credentials.setUserName("admin");credentials.setPassword("admin");authenticationStatus = port.authenticate(credentials);System.out.println(authenticationStatus.getStatusMessage());}}

不用我们自己编写StandaloneClient，我们可以使用wsimport命令行工具生成Client。

wsimport工具在JDK / bin目录中。

转到您的项目src目录并执行以下命令。

wsimport -keep -p com.sivalabs.caas.client http：// localhost：8080 / CAAS / services / AuthenticationService？wsdl

它将在com.sivalabs.caas.client软件包中生成以下Java和类文件。

Authenticate.java
AuthenticateResponse.java
AuthenticationService_Service.java AuthenticationService.java AuthenticationServiceException_Exception.java AuthenticationServiceException.java AuthenticationStatus.java Credentials.java ObjectFactory.java 包信息.java

现在，您可以使用生成的Java文件来测试服务。

public static void main(String[] args) throws Exception
{AuthenticationService_Service service = new AuthenticationService_Service();com.sivalabs.caas.client.AuthenticationService authenticationServiceImplPort = service.getAuthenticationServiceImplPort();com.sivalabs.caas.client.Credentials credentials = new com.sivalabs.caas.client.Credentials();credentials.setUserName("admin1");credentials.setPassword("admin");com.sivalabs.caas.client.AuthenticationStatus authenticationStatus = authenticationServiceImplPort.authenticate(credentials);System.out.println(authenticationStatus.getStatusMessage());credentials.setUserName("admin");credentials.setPassword("admin");authenticationStatus = authenticationServiceImplPort.authenticate(credentials);System.out.println(authenticationStatus.getStatusMessage());
}

现在，我们将看到如何在Tomcat服务器上部署JAX-WS WebService。

我们将在apache-tomcat-6.0.32上部署在http://sivalabs.blogspot.com/2011/09/developing-webservices-using-jax-ws.html中开发的AuthenticationService。

要部署我们的AuthenticationService，我们需要添加以下配置。

1.web.xml

<web-app><listener><listener-class>com.sun.xml.ws.transport.http.servlet.WSServletContextListener</listener-class></listener><servlet><servlet-name>authenticationService</servlet-name><servlet-class>com.sun.xml.ws.transport.http.servlet.WSServlet</servlet-class><load-on-startup>1</load-on-startup></servlet><servlet-mapping><servlet-name>authenticationService</servlet-name><url-pattern>/services/AuthenticationService</url-pattern></servlet-mapping>
</web-app>

2.创建一个新文件WEB-INF / sun-jax-ws.xml

<?xml version="1.0" encoding="UTF-8"?>
<endpointsxmlns="http://java.sun.com/xml/ns/jax-ws/ri/runtime"version="2.0"><endpointname="AuthenticationService"implementation="com.sivalabs.caas.services.AuthenticationServiceImpl"url-pattern="/services/AuthenticationService"/></endpoints>

3.从http://jax-ws.java.net/下载JAX-WS参考实现。

将所有jar文件从jaxws-ri / lib文件夹复制到WEB-INF / lib。

现在，将应用程序部署在Tomcat服务器上。
您不需要像使用EndpointPublisher那样由我们自己发布服务。
Tomcat启动并运行后，请在http：// localhost：8080 / CAAS / services / AuthenticationService？wsdl中查看生成的wsdl。

现在，如果您使用独立客户端测试AuthenticationService，它将可以正常工作。

public static void testAuthenticationService()throws Exception
{URL wsdlUrl = new URL("http://localhost:8080/CAAS/services/AuthenticationService?wsdl");QName qName = new QName("http://sivalabs.blogspot.com/services/AuthenticationService", "AuthenticationService");Service service = Service.create(wsdlUrl,qName);AuthenticationService port = service.getPort(AuthenticationService.class);Credentials credentials=new Credentials();credentials.setUserName("admin");credentials.setPassword("admin");AuthenticationStatus authenticationStatus = port.authenticate(credentials);System.out.println(authenticationStatus.getStatusMessage());
}

但是，如果尝试使用wsimport工具生成的客户端代码进行测试，请确保在客户端类路径中没有jax-ws-ri jar。

否则，您将得到以下错误：

Exception in thread "main" java.lang.NoSuchMethodError: javax.xml.ws.WebFault.messageName()Ljava/lang/String;at com.sun.xml.ws.model.RuntimeModeler.processExceptions(RuntimeModeler.java:1162)at com.sun.xml.ws.model.RuntimeModeler.processDocWrappedMethod(RuntimeModeler.java:898)

参考： “ 我的实验”博客上的 JCG合作伙伴 Siva Reddy提供了使用JAX-WS开发WebServices和在Tomcat-6上部署JAX-WS WebService的信息 。