web service开发框架

服务器端： 

CXF的前身是Xfire，具体内容可参照http://xfire.codehaus.org/ 。IDE为Eclipse 3.2 （JDK 1.5以上）

1、  首先访问http://incubator.apache.org/cxf/ 下载所需的jar包。

2、  新建一个web工程，将下载的CXF的开发包加入到lib中。

3、  在web.xml 文件中添加提供web service的监听servlet，对应的处理类名为org.apache.cxf.transport.servlet.CXFServlet,并设置其启动时装载顺序属性为1；指定访问servlet的URL格式。

<?xml version="1.0" encoding="UTF-8"?><web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">  <display-name>WSDemo</display-name>  <welcome-file-list>    <welcome-file>index.html</welcome-file>    <welcome-file>index.htm</welcome-file>    <welcome-file>index.jsp</welcome-file>    <welcome-file>default.html</welcome-file>    <welcome-file>default.htm</welcome-file>    <welcome-file>default.jsp</welcome-file>  </welcome-file-list>  <context-param>          <param-name>contextConfigLocation</param-name>          <param-value>classpath:beans.xml</param-value>    </context-param>      <listener>          <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>    </listener>    <servlet>  <servlet-name>CXFServlet</servlet-name>  <servlet-class>org.apache.cxf.transport.servlet.CXFServlet</servlet-class>  <load-on-startup>1</load-on-startup>  </servlet>  <servlet-mapping>       <servlet-name>CXFServlet</servlet-name>       <url-pattern>/*</url-pattern>  </servlet-mapping></web-app>

4、  新建一个beans.xml配置文件，内容如下所示： 

 

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"xmlns:jaxws="http://cxf.apache.org/jaxws"xmlns:cxf="http://cxf.apache.org/core"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://cxf.apache.org/jaxws http://cxf.apache.org/schemas/jaxws.xsd"><bean id="ws" class="org.han.websevices.NotifyServiceImpl"/><jaxws:endpoint id="helloWorld" implementor="#ws" address="/ws" /></beans>

5、  编写要发布为web service的类和接口，注意注解(annotation)的使用。在如上的配置文件中，我们指定了要发布为web service的类名，访问地址，访问端点标识。

 

package org.han.websevices;import javax.jws.WebService;@WebServicepublic interface INotifyService {public void sayHello(String name);}package org.han.websevices;import javax.jws.WebService;@WebService(endpointInterface="org.han.websevices.INotifyService")public class NotifyServiceImpl implements INotifyService {@Overridepublic void sayHello(String name) {// TODO Auto-generated method stubSystem.out.println(name);}}

6、  发布web应用到对应的web容器（例如tomcat5.5）或者用内嵌的Jetty6.0进行部署。

 访问：http://localhost:8080/WSDemo/ws?wsdl 如果能正确显示xml文件则说明部署成功。 

客户端： 

1.新建一个java项目，也导入该包 
2.新建客户程序（如果熟悉cxf可以运用cxf的wsdl2java命令直接根据wsdl生成）

package org.han.test;import org.han.websevices.INotifyService;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;public class Test {    public static void main(String[] args) {     ApplicationContext ctx = new ClassPathXmlApplicationContext("spring.xml");           INotifyService client = (INotifyService) ctx.getBean("client");           client.sayHello("hello");      }}

根据代码，我们还需要新建一个INotifyService接口，这是服务器端暴露的服务，代码和服务器端一致即可。 配置spring配置文件：

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"xmlns:jaxws="http://cxf.apache.org/jaxws" xmlns:cxf="http://cxf.apache.org/core"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsdhttp://cxf.apache.org/jaxws http://cxf.apache.org/schema/jaxws.xsd"><bean id="client" class="org.han.websevices.INotifyService" factory-bean="clientFactory"factory-method="create" /><bean id="clientFactory" class="org.apache.cxf.jaxws.JaxWsProxyFactoryBean"><property name="serviceClass" value="org.han.websevices.INotifyService" /><property name="address" value="http://localhost:8080/WSDemo/ws" /></bean></beans>

注意：<property name="address" value="http://localhost:8080/WSDemo/ws" />中的/ws要与服务器端beans.xml中的<jaxws:endpoint id="helloWorld" implementor="#ws" address="/ws" />的address属性对应。 

大致需要的一些jar:

补充：

2.控制台报错整理：

严重: Servlet.service() for servlet CXFServlet threw exception
java.lang.NoClassDefFoundError: org/apache/xml/serializer/TreeWalker

解决：导入serializer-2.7.1.jar  。

 严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'helloWorld': Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: javax/wsdl/extensions/ElementExtensible
Related cause: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'org.apache.cxf.binding.soap.SoapTransportFactory' defined in class path resource [META-INF/cxf/cxf-extension-soap.xml]: Unsatisfied dependency expressed through constructor argument with index 2 of type [java.lang.String]: Ambiguous constructor argument types - did you specify the correct bean references as constructor arguments?

解决：导入：neethi-3.0.1.jar   。

几种常用web service开发框架的比较：http://gaoge2000.blog.hexun.com/15987048_d.html