yezi

xfire和Spring良好的结合，促使我将原有的axis方式改造到xfire方式。下面将整个过程简述一下，首先看一下如何配置xfire。在Web.xml中有两种方式来配置xfire，
一种是通过spring提供的org.springframework.web.servlet.DispatcherServlet来实现，配置方法是这样的：
1、web.xml中配置

<servlet>
	    <servlet-name>xfire</servlet-name>
	    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
	</servlet>
	
	<servlet-mapping>
	    <servlet-name>xfire</servlet-name>
	    <url-pattern>/*</url-pattern>
	</servlet-mapping>

2、WEB-INF下添加xfire-servlet.xml文件，配置方法如下：

<?xml version="1.0" encoding="UTF-8"?>   
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
	<bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
	    <property name="urlMap">
	        <map>
	            <entry key="/EchoService"> <!-- 这里是WebService的名称 -->
	                <ref bean="echo"/> 
	            </entry>
	        </map>
	    </property>
	</bean>
	
	<bean id="echo" class="org.codehaus.xfire.spring.remoting.XFireExporter">
	    <property name="serviceFactory">
	        <ref bean="xfire.serviceFactory"/>
	    </property>
	    <property name="xfire">
	        <ref bean="xfire"/>
	    </property>
	    <property name="serviceBean">
	        <ref bean="echoBean"/>
	    </property>
	    <property name="serviceClass">
	        <value>xxx.com.webservice.Echo</value>
	    </property>
	</bean>
</beans>

配置完成后，定义一个接口，然后启动Server，通过client可实现WebService的访问。

同时，xfire提供了另外一种阅读性更好，更符合spring配置习惯的配置方法，配置方法如下：
1、web.xml

<servlet>
		<servlet-name>XFireServlet</servlet-name>
		<servlet-class>
			org.codehaus.xfire.spring.XFireSpringServlet
		</servlet-class>
	</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>/service/*</url-pattern>
	</servlet-mapping>

这种方式不需要单独配置一个xfire-servlet.xml文件，只需要在spring的applicationContext文件中进行配置就能实现WebService的配置
2、applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
	<!-- 需要import下面这个xml文件 -->
	<import resource="classpath:org/codehaus/xfire/spring/xfire.xml" />
	
	<!-- WebService Impl  WebService接口的实现类-->
	<bean id="accountWebServiceImpl" class="xxx.com.account.webservice.impl.AccountWebServiceImpl" autowire="byName" />
	<!-- end -->
	
	<!-- 下面的配置是WebService的标准配置 -->
	<bean id="AccountWebService" class="org.codehaus.xfire.spring.remoting.XFireExporter"> <!-- WebService的名字 -->
		<property name="xfire" ref="xfire" />
		<property name="serviceBean" ref="accountWebServiceImpl" /> <!-- WebService的实现类bean -->
		<property name="serviceClass" value="xxx.com.account.webservice.AccountWebService" />
		<property name="inHandlers" ref="authenticationHandler"/> <!--普通的用户名密码的方式进行WebService的验证-->
	</bean>
	<bean id="authenticationHandler"
		  class="xxx.com.account.webservice.authentcation.AuthenticationHandler"/>
</beans>

通过上面的配置，就可以将Spring的bean和xfire的WebService很好的结合起来了，以上的方式在WebService上只是做了简单的密码验证，并不能保证WebService的安全性，下面将详细描述如何通过WSS4J的方式来实现WebService的数字证书的加密验证，这里大量的参考了SpringSide，非常感谢！
下面看一下关于WSS4J的spring配置文件

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
	<import resource="classpath:org/codehaus/xfire/spring/xfire.xml" />
	
	<!-- WebService Impl  -->
	<bean id="accountWebServiceImpl" class="xxx.com.account.webservice.impl.AccountWebServiceImpl" autowire="byName" />
	<!-- end -->
	
	<!-- 使用 WSS4J验证 -->
	<bean id="accountWebServiceWSS4J" class="org.codehaus.xfire.spring.remoting.XFireExporter">
        <property name="serviceBean" ref="accountWebServiceImpl"/>
        <property name="serviceClass" value="xxx.com.account.webservice.wss4j.AccountWebServiceWSS4J"/>
        <property name="inHandlers">
            <list>
                <ref bean="domInHandler"/>
                <ref bean="wss4jInHandler"/>
                <ref bean="validateUserTokenHandler"/>
            </list>
        </property>
    </bean> 
	
	<bean id="domInHandler" class="org.codehaus.xfire.util.dom.DOMInHandler"/>
	
	<bean id="wss4jInHandler" class="org.codehaus.xfire.security.wss4j.WSS4JInHandler">
        <property name="properties">
            <props>
                <prop key="action">UserToken</prop>
                <prop key="passwordCallbackClass">xxx.com.account.webservice.wss4j.PasswordHandler</prop>
            </props>
        </property>
    </bean>
    
    <!--  使用 WSS4J验证 Signature模式 -->
    <bean id="accountWebServiceWSS4JSign" class="org.codehaus.xfire.spring.remoting.XFireExporter">
        <property name="serviceBean" ref="accountWebServiceImpl"/>
        <property name="serviceClass" value="xxx.com.account.webservice.wss4j.AccountWebServiceWSS4JSign"/>
        <property name="inHandlers">
            <list>
                <ref bean="domInHandler"/>
                <ref bean="wss4jInHandlerSign"/>
                <ref bean="validateUserTokenHandler"/>
            </list>
        </property>
    </bean>
    
    <bean id="wss4jInHandlerSign" class="org.codehaus.xfire.security.wss4j.WSS4JInHandler">
        <property name="properties">
          <props>
            <prop key="action">Signature</prop>
            <prop key="signaturePropFile">com/real/cn/account/webservice/wss4j/server_security_sign.properties</prop>
            <prop key="passwordCallbackClass">xxx.com.account.webservice.wss4j.PasswordHandler</prop>
          </props>
        </property>
    </bean>
    
    <!-- 使用 WSS4J验证 Encrypt模式 -->
    <bean id="accountWebServiceWSS4JEnc" class="org.codehaus.xfire.spring.remoting.XFireExporter">
        <property name="serviceBean" ref="accountWebServiceImpl"/>
        <property name="serviceClass" value="xxx.com.account.webservice.wss4j.AccountWebServiceWSS4JEnc"/>
        <property name="inHandlers">
            <list>
                <ref bean="domInHandler"/>
                <ref bean="wss4jInHandlerEnc"/>
                <ref bean="validateUserTokenHandler"/>
            </list>
        </property>
    </bean>
    
    <bean id="wss4jInHandlerEnc" class="org.codehaus.xfire.security.wss4j.WSS4JInHandler">
        <property name="properties">
          <props>
            <prop key="action">Encrypt</prop>
            <prop key="decryptionPropFile">com/real/cn/account/webservice/wss4j/server_security_enc.properties</prop>
            <prop key="passwordCallbackClass">xxx.com.account.webservice.wss4j.PasswordHandler</prop>
          </props>
        </property>
    </bean>
    
    <bean id="validateUserTokenHandler"
		  class="xxx.com.account.webservice.wss4j.WSS4JTokenHandler"/>
        
</beans>

Encrypt模式是指客户端使用公钥加密数据流，然后发送到服务端，服务端通过私钥进行校验，这种方式适合集中式的服务；Signature模式是指客户端使用私钥加密数据流，服务端通过公钥来校验，这种方式适合分布式服务。
对于Encrypt模式和Signature模式的接口，只要继承AccountWebService就可以。

server_security_enc.properties和server_security_sign.properties文件保存了证书的位置以及用户名和密码，这里的用户名和密码，这样就有密码和证书两重的校验方式

对于server端和client端来讲
私钥，格式如下：

org.apache.ws.security.crypto.provider=org.apache.ws.security.components.crypto.Merlin
org.apache.ws.security.crypto.merlin.keystore.type=jks
org.apache.ws.security.crypto.merlin.keystore.password=xxx
org.apache.ws.security.crypto.merlin.alias.password=xxx
org.apache.ws.security.crypto.merlin.keystore.alias=xxx
org.apache.ws.security.crypto.merlin.file=.../account_server_enc.jks

公钥，格式如下：

org.apache.ws.security.crypto.provider=org.apache.ws.security.components.crypto.Merlin
org.apache.ws.security.crypto.merlin.keystore.type=jks
org.apache.ws.security.crypto.merlin.keystore.password=xxx
org.apache.ws.security.crypto.merlin.keystore.alias=xxx
org.apache.ws.security.crypto.merlin.file=.../account_client_enc.jks