用xfire开发webservice实例

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mb649d3a75b51a2 2023-07-03 16:05:23 ©著作权

文章标签 webservice myeclipse import exception service 文章分类 Python 后端开发

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用xfire开发webservice总结
本实例是以简单的加减法（a+b和a-b）运算实现用xfire开发webservice服务端和客户端。
一、开发环境
运行环境： Tomcat 6.0.14,jdk 1.5
开发工具：Eclipse3.2 + MyEclipse 5.5
二、开发service(服务端)
开发之前请先到官方(http://xfire.codehaus.org/Download)下载xfire-distribution-1.2.6.zip并解压缩.
1.在MyEclipse 建立一个web工程，命名为：XFireWebService,在src目录下新建一个META-INF文件夹里包含xfire/service.xml，把xfire-1.2.6里lib所有jar和xfire-all-1.2.6.jar拷贝到工程lib里，工程具体信息如附件图

2.修改WebRoot/Web-INF/web.xml文件

<?xml version="1.0" encoding="UTF-8"?> 
 <web-app> 
 <welcome-file-list> 
   <welcome-file>index.jsp</welcome-file> 
 </welcome-file-list> 

   <context-param> 
      <param-name>log4jConfigLocation</param-name> 
      <param-value>/WEB-INF/log4j.properties</param-value> 
   </context-param> 

 <servlet> 
   <servlet-name>XFireServlet</servlet-name> 
   <servlet-class> 
    org.codehaus.xfire.transport.http.XFireConfigurableServlet 
   </servlet-class> 
   <load-on-startup>0</load-on-startup> 
 </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> 
 </web-app>

3.修改src/META-INF/xfire/services.xml文件

<?xml version="1.0" encoding="UTF-8"?> 

 <beans xmlns="http://xfire.codehaus.org/config/1.0"> 
 <service> 
   <name>MathService</name> 
   <namespace> 
    http://localhost:8080/XFireWebService/MathService    </namespace> 
   <serviceClass>com.test.ws.MathServiceImpl</serviceClass> 
 </service> 
 </beans>

4.写MathService接口类和MathServicImpl实现类
MathService接口类

package com.test.ws; 

 public interface  MathService { 
 public long add(int p1, int p2); 
 public long minus(int p3, int p4); 
 } 

 MathServiceImpl实现类 
 package com.test.ws; 

 public class MathServiceImpl implements  MathService{ 

 public long add(int p1, int p2) { 
 System.out.println(p1 + p2); 
      return p1 + p2; 
 } 

 public long minus(int p3, int p4) { 
 System.out.println(p3 - p4); 
 return p3 - p4; 
 } 
 }

5.MyEclipse会自动编译src文件，请到MyEclipse的workspace里找到刚才建的XFireWebService工程，打开工程并copy WebRoot文件夹到%TOMCAT_HOME%/webapps里并把WebRoot改名为xfire，参照图如附件：

三、开发client(客户端)
开发client有几种模式
1．纯POJO模式
需要service端提供MathService接口类

package com.test.client; 

 import java.net.MalformedURLException; 

 import org.codehaus.xfire.XFire; 
 import org.codehaus.xfire.XFireFactory; 
 import org.codehaus.xfire.client.XFireProxyFactory; 
 import org.codehaus.xfire.service.Service; 
 import org.codehaus.xfire.service.binding.ObjectServiceFactory; 

 import com.test.ws.MathService; 

 public class CallXfireWebService_POJO { 

 /** 
 * @param args 
 */ 
 public static void main(String[] args) { 
 Service serviceModel = new ObjectServiceFactory().create(MathService.class); 

 XFire xfire = XFireFactory.newInstance().getXFire();  
 XFireProxyFactory factory = new XFireProxyFactory(xfire); 
 String serviceUrl = "http://localhost:8080/xfire/services/MathService"; 

 int p1 = 115; 
 int p2 = 4; 

 int p3 = 9; 
 int p4 = 240; 

 MathService client = null; 
 try { 
 client = (MathService) factory.create(serviceModel, serviceUrl); 
 } catch (MalformedURLException e) { 
 System.out.println( "Client call webservice has exception: " + e.toString()); 
 } 

 int result1 = (int) client.add(p1, p2); 
 int result2 = (int) client.minus(p3, p4); 
 System.out.println(result1); 
 System.out.println(result2); 

 } 
 }

2． JSR181模式
Server端开发组需要向Client提供MathService的实现类MathServiceImpl，而不止于接口，有点危险,不提倡用这个模式。暂不研究。

3． SpringSide
暂空着，下轮用到再详解。
4．动态模式
动态模式不需要服务端的class,但在性能上有所欠佳。

package com.test.client; 

 import java.net.MalformedURLException; 
 import java.net.URL; 

 import org.codehaus.xfire.client.Client; 

 public class DynamicXfireWebService { 

 /** 
 * @param args 
 */ 
 public static void main(String[] args) { 
 Client client = null; 
 try { 
 client = new Client(new URL("http://localhost:8080/xfire/services/MathService?wsdl")); 
 Object[] result1 = client.invoke("add", new Object[] {1, 2}); 
 Object[] result2 = client.invoke("minus", new Object[] {1, 2}); 

 System.out.println(result1[0]); 
 System.out.println(result2[1]); 
 } catch (MalformedURLException e) { 
 e.printStackTrace(); 
 } catch (Exception e) { 
 e.printStackTrace(); 
 } 

 } 

 }

5．根据WSDL生成Client Stub
创建client文件夹里含build.xml文件，内容如下

<?xml version="1.0"?> 
 <project default="genfiles" basedir="."> 
     <property name="lib" value="WebRoot/WEB-INF/lib" /> 
     <path id="myclasspath"> 
         <fileset dir="${lib}"> 
             <include name="*.jar" /> 
         </fileset> 
         <pathelement location="${genfiles}" /> 
     </path> 
     <property name="code_path" value="src" /> 
     <property name="wsdl_path" value="http://localhost:8080/xfire/MathService?wsdl" /> 
     <property name="code_package" value="com.playphone.ws.client" /> 
     <target name="genfiles" description="Generate the files"> 
         <taskdef name="wsgen" classname="org.codehaus.xfire.gen.WsGenTask" classpathref="myclasspath" /> 
         <wsgen outputDirectory="${code_path}" wsdl="${wsdl_path}" package="${code_package}" binding="xmlbeans" overwrite="true" /> 
     </target> 
 </project>

用ms dos打开至client文件夹，执行ant.
在所生成的client工程里写一个含math方法的ClientTest类
四、启动Tomcat, 测试
运行客户端程序即可看到结果。
Good luck to you!

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