XFire实现WebService一：使用XfireConfigurableServlet

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使用XFire进行web services开发有三种方式：

1. 不集成Spring：配置services.xml 文件和web.xml(配置org.codehaus.xfire.transport.http.XFireConfigurableServlet servlet)

2. Spring使用XFireSpringServlet方式。

3.Spring集成使用org.springframework.web.servlet.DispatcherServlet方式

使用XfireConfigurableServlet进行实现的步骤：

1、定义服务接口；

2、实现服务接口；

3、更新web.xml添加XFire相关的servlet（即添加XfireConfigurableServlet）

4、创建services.xml文件

5、测试web services是否部署成功

1、定义服务接口

package com.mybank.xfire.example;

public interface IBankingService {

public String transferFunds(

String fromAccount, String toAccount, double amount, String currency);

}

注：服务接口不能少，客户端访问web services就是通过接口进行访问的，实现类对客户端是透明的。

2、实现服务接口

package com.mybank.xfire.example;

import java.text.NumberFormat; i

import java.text.DecimalFormat;

public class BankingService implements IBankingService {

public BankingService(){

}

public String transferFunds(

String fromAccount, String toAccount, double amount, String currency){

String statusMessage = "";

try {

NumberFormat formatter = new DecimalFormat("###,###,###,###.00");

statusMessage = "COMPLETED: " + currency + " " + formatter.format(amount)+

" was successfully transferred from A/C# " + fromAccount + " to A/C# " + toAccount;

} catch (Exception e){

statusMessage = "BankingService.transferFunds(): EXCEPTION: " + e.toString();

}

return statusMessage;

}

注：BankingService的transferFunds返回类型是String，如果是复杂类型需要Aegis进行数据绑定。

3、web.xml添加XfireConfigurableServlet

<servlet-name>XFireServlet</servlet-name>

<display-name>XFire Servlet</display-name>

<servlet-class>org.codehaus.xfire.transport.http.XfireConfigurableServlet </servlet-class>

<init-param>

<param-name>config</param-name>

<param-value>services.xml</param-value>

</init-param>

</servlet>

<servlet-mapping>

<servlet-name>XFireServlet</servlet-name>

<url-pattern>/servlet/XFireServlet/*</url-pattern>

</servlet-mapping>

<servlet-mapping>

<servlet-name>XFireServlet</servlet-name>

<url-pattern>/services/*</url-pattern>

</servlet-mapping>

4、创建services.xml文件

<name>Banking</name>

<namespace>mybank</namespace>

<serviceClass>com.mybank.xfire.example.IBankingService</serviceClass>

<implementationClass>com.mybank.xfire.example.BankingService</implementationClass>

</service>

</beans>

注：services.xml定义了web服务，如此services.xml就定义了Banking服务，其服务接口和实现类分别是IBankingService和BankingService。XfireConfigurableServlet就是通过加载services.xml来管理web服务的。加载的默认路径为WEB-INF\classes\META-INF\xfire文件夹。可以在web.xml配置XfireConfigurableServlet时至定义路径

<init-param>

<param-name>config</param-name>

<param-value>services.xml</param-value>

</init-param>

5、测试web服务是否部署成功有两种方法：一是通过浏览器进行测试，二是通过客户端进行测试。

/×客户端测试方法×/

public String callWebService(

String fromAccount, String toAccount, double amount, String currency)

throws MalformedURLException, Exception {

Service serviceModel = new ObjectServiceFactory().create(IBankingService.class);

System.out.println("callSoapServiceLocal(): got service model." );

XFire xfire = XFireFactory.newInstance().getXFire();

XFireProxyFactory factory = new XFireProxyFactory(xfire);

String serviceUrl = "http://localhost:8080/websvc/services/Banking";

IBankingService client = null;

try {

client = (IBankingService) factory.create(serviceModel, serviceUrl);

} catch (MalformedURLException e) {

System.out.println("WsClient.callWebService(): EXCEPTION: " + e.toString());

}

String serviceResponse = "";

try {

serviceResponse = client.transferFunds(fromAccount, toAccount, amount, currency);

} catch (Exception e){

System.out.println("WsClient.callWebService(): EXCEPTION: " + e.toString());

serviceResponse = e.toString();

}

System.out.println("WsClient.callWebService(): status=" + serviceResponse);

return serviceResponse;

}

浏览器测试：http://localhost:8080/websvc/services/Banking?wsdl 查看web服务发布情况