【转】Apache CXF开发WebService

Apache CXF是一种新型的WebService框架，使用它开发WebService将会极大的提高开发效率。CXF与Spring的集成是非常自然的，如果你不知道Spring请问Google。
CXF项目主页：http://cxf.apache.org
由于CXF集成了很多主流的工具包，所以它的体积非常大，30M+，有兴趣的研究下哪些包是非必须的，烦请告知。
费话少说，开工。
一、在Eclipse中建立一个Dynamic Web project，添加CXF/lib下所有jar到项目的lib中
二、编写Service类
2.1先建立一个接口

package com.iflysse.cxf;
import javax.jws.WebService;
@WebService
public interface IVote {
public boolean vote(String username, int point);
public int getVoteUserTotal();
public int getVotePointTotal();
}

package com.iflysse.cxf;
import javax.jws.WebService;
@WebService
public interface IVote {
public boolean vote(String username, int point);
public int getVoteUserTotal();
public int getVotePointTotal();
}

2.2建立Service类，实现接口方法

package com.iflysse.cxf;
import javax.jws.WebService;
@WebService
public class Vote implements IVote {
private static int pointTotal;
private static int userTotal;
public int getVotePointTotal() {
return pointTotal;
}
public int getVoteUserTotal() {
return userTotal;
}
public boolean vote(String username, int point) {
userTotal++;
pointTotal+=point;
return true;
}
}

package com.iflysse.cxf;
import javax.jws.WebService;
@WebService
public class Vote implements IVote {
private static int pointTotal;
private static int userTotal;
public int getVotePointTotal() {
return pointTotal;
}
public int getVoteUserTotal() {
return userTotal;
}
public boolean vote(String username, int point) {
userTotal++;
pointTotal+=point;
return true;
}
}

三、在Web.xml中配置CXF，使其生效
3.1在Web.xml中添加CXFServlet，为用户提供访问入口

<servlet>
<servlet-name>cxf</servlet-name>
<servlet-class>org.apache.cxf.transport.servlet.CXFServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>cxf</servlet-name>
<url-pattern>/services/*</url-pattern>
</servlet-mapping>

<servlet>
<servlet-name>cxf</servlet-name>
<servlet-class>org.apache.cxf.transport.servlet.CXFServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>cxf</servlet-name>
<url-pattern>/services/*</url-pattern>
</servlet-mapping>

3.2由于CXF与Spring是天然集成的，所以在Web.xml中添加Spring的配置

<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>WEB-INF/beans.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>WEB-INF/beans.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

3.3在WEB-INF下建立beans.xml内容如下

<?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:jaxws="http://cxf.apache.org/jaxws"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://cxf.apache.org/jaxws http://cxf.apache.org/schemas/jaxws.xsd">
<import resource="classpath:META-INF/cxf/cxf.xml" />
<import resource="classpath:META-INF/cxf/cxf-extension-soap.xml" />
<import resource="classpath:META-INF/cxf/cxf-servlet.xml" />
<jaxws:endpoint id="vote" implementor="com.iflysse.cxf.Vote"
address="/Vote" />
</beans>

<?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:jaxws="http://cxf.apache.org/jaxws"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd 
http://cxf.apache.org/jaxws http://cxf.apache.org/schemas/jaxws.xsd">
<import resource="classpath:META-INF/cxf/cxf.xml" />
<import resource="classpath:META-INF/cxf/cxf-extension-soap.xml" />
<import resource="classpath:META-INF/cxf/cxf-servlet.xml" />
<jaxws:endpoint id="vote" implementor="com.iflysse.cxf.Vote"
address="/Vote" />
</beans>

四、运行项目，检验成果，访问http://localhost:8080/CXFDemo/services/Vote?wsdl

注：CXF与Spring集成的意义
松耦合，通过配置实现WebService的发布
可以通过Spring容器对WebService管理