CXF发布webService(一)

Apache CXF 是一个开放源代码框架,提供了用于方便地构建和开发 Web 服务的可靠基础架构。它允许创建高性能和可扩展的服务,您可以将这样的服务部署在 Tomcat 容器中或者嵌入式的jetty中。CXF 支持以下 Web 服务标准:

  • Java API for XML Web Services (JAX-WS)
  • SOAP
  • Web 服务描述语言(Web Services Description Language ,WSDL)
  • 消息传输优化机制(Message Transmission Optimization Mechanism,MTOM)
  • WS-Basic Profile
  • WS-Addressing
  • WS-Policy
  • WS-ReliableMessaging
  • WS-Security

利用CXF框架发布webService时,可以选择使用本地jetty(CXF内建jetty容器),也可以选择web容器。

一、使用内置的jetty发布webservice

1、pom.xml文件:

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<properties>
  <cxf.version>2.2.3</cxf.version>
</properties>
 
<dependencies>
    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-rt-frontend-jaxws</artifactId>
        <version>${cxf.version}</version>
    </dependency>
    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-rt-transports-http</artifactId>
        <version>${cxf.version}</version>
    </dependency>
        <!-- Jetty is needed if you're are not using the CXFServlet -->
    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-rt-transports-http-jetty</artifactId>
        <version>${cxf.version}</version>
    </dependency>
</dependencies>

:CXF不仅支持通过Web容器发布WebService,也可以在嵌入式代码中通过jetty发布WebService。如果使用jetty发布webservice服务,就必须引入cxf-rt-transports-http-jetty,否则会报 Could not find destination factory for transport!

2、服务接口、实现类:
1)接口,这里使用@webService注解,来标识这是一个暴露的webservice

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package cn.edu.nuc.cxfMaven;

import javax.jws.WebParam;
import javax.jws.WebService;

@WebService
public interface IHelloService {
String sayHi(@WebParam(name="text")String text);
//String sayHiToUser(User user);
}

2)实现类,通过endpoint属性值指明服务接口,在发布的时候要使用该值

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package cn.edu.nuc.cxfMaven;

import javax.jws.WebService;

@WebService(endpointInterface="cn.edu.nuc.cxfMaven.IHelloService",serviceName="helloWorld")
public class HelloService implements IHelloService {

public String sayHi(String text){
return "Hello " + text;
}
}

3、发布webservice服务:( endpoint和JaxWsServerFactoryBean 两种方式
1)以Endpoint发布:

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package cn.edu.nuc.cxfMaven;

import javax.xml.ws.Endpoint;

public class WebServiceApp {

public static void main(String[] args) {
System.out.println("web service start。。。");

HelloService implementor= new HelloService();
String address="http://localhost:9000/helloWorld";
Endpoint.publish(address, implementor);

System.out.println("web service started。。。");

}
}

2)以JaxWsServerFactoryBean发布:

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public static void main(String[] args) {
JaxWsServerFactoryBean bean = new JaxWsServerFactoryBean();

bean.setAddress("http://localhost:9000/helloWorld");//服务的地址

bean.setServiceClass(HelloService.class);//提供服务的类的类型
bean.setServiceBean(new HelloService());//提供服务的实例

bean.create();//发布服务 publish()…

System.out.println("server ready...");
}

发布成功后,访问http://localhost:9000/helloWorld?wsdl 可以看到wsdl文件。

4、客户端测试:
在另外一个项目中,把上面的接口IHelloService拷贝过来(包名可以不一样,但是注解@webService必须要);然后建立客户端类

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package cxf;

import org.apache.cxf.jaxws.JaxWsProxyFactoryBean;

public class WebServiceClient {

public static void main(String[] args) {
JaxWsProxyFactoryBean svr = new JaxWsProxyFactoryBean();
svr.setServiceClass(IHelloService.class);
svr.setAddress("http://localhost:9000/helloWorld");
IHelloService hw = (IHelloService) svr.create();

System.out.println(hw.sayHi("刘晓。。。。。。。。。"));
}
}

二、使用tomcat容器发布webservice

使用web容器发布webservice时,可以借助spring(spring集成了CXF)更方便发布。

1、pom.xml文件(只需要两项)

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<dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-rt-frontend-jaxws</artifactId>
        <version>${cxf.version}</version>
</dependency>
<dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-rt-transports-http</artifactId>
        <version>${cxf.version}</version>
</dependency>

2、服务类、实现类:

同上;

3、配置web.xml:

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<?xml version="1.0" encoding="UTF-8"?>  
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">


<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:application.xml</param-value>
</context-param>

<listener>
<description>spring监听器</description>
<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>/webservice/*</url-pattern>
</servlet-mapping>

<servlet>
<servlet-name>SpringMaven</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springMVC.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>SpringMaven</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>

<session-config>
<session-timeout>30</session-timeout>
</session-config>
</web-app>

注: 这里,配置了springmvc和cxf两个servlet。如果只使用cxf发布webService,那么配CXFServlet即可。

4、配置application.xml:(endpoint和JaxWsServerFactoryBean 两种方式

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<?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:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:tx="http://www.springframework.org/schema/tx"
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://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.2.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"/>

<!-- 相当于使用endpoint进行服务发布 -->
<jaxws:endpoint id="helloWorld"
implementor="cn.edu.nuc.springMaven.services.impl.HelloService"
address="/helloWorld" />


<!-- 另一种发布方式,相当于使用JaxWsServerFactoryBean进行服务发布 -->
<jaxws:server address="/helloWorld" serviceClass="cn.edu.nuc.springMaven.services.impl.HelloService"/>
<beans>

启动tomcat成功后,可以访问 http://localhost:8080/SpringMaven/webservice/helloWorld?wsdl 来查看wsdl文件。

5、编写客户端调用webservice:
1)在另外一个项目中,把上面的接口IHelloService拷贝过来(包名可以不一样,但是注解@webService必须要);然后建立客户端类,使用JaxWsProxyFactoryBean 进行调用。

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package cxf;

import org.apache.cxf.jaxws.JaxWsProxyFactoryBean;

public class WebServiceClient {

public static void main(String[] args) {
JaxWsProxyFactoryBean svr = new JaxWsProxyFactoryBean();
svr.setServiceClass(IHelloService.class);
svr.setAddress("http://localhost:8080/SpringMaven/webservice/helloWorld");
IHelloService hw = (IHelloService) svr.create();

System.out.println(hw.sayHi("刘晓。。。。。。。。。"));
}
}

2)使用spring的依赖注入,通过配置调用webService服务:
方式一:在application.xml中通过jaxws:client

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<jaxws:client id="sayHello2"                  serviceClass="cn.edu.nuc.springMaven.services.IHelloService"
address="http://localhost:8080/SpringMaven/webservice/helloWorld?wsdl"/>

代码:

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public class Client {
public static void main(String[] args) {
ApplicationContext ctx = new ClassPathXmlApplicationContext("application.xml");

IHelloService clietn = (IHelloService)ctx.getBean("sayHello2");

System.out.println(clietn.sayHi("liuxiao"));
}
}

方式二:在application.xml中通过下面方式:

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<bean id="client" class="cn.edu.nuc.springMaven.services.IHelloService" 
factory-bean="clientFactory" factory-method="create"/>


<bean id="clientFactory" class="org.apache.cxf.jaxws.JaxWsProxyFactoryBean">
<property name="serviceClass" value="cn.edu.nuc.springMaven.services.IHelloService"/>
<property name="address" value="http://localhost:8080/SpringMaven/webservice/helloWorld"/>

</bean>

代码:

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public class Client {
public static void main(String[] args) {
ApplicationContext ctx = new ClassPathXmlApplicationContext("application.xml");

IHelloService clietn = (IHelloService)ctx.getBean("client");

System.out.println(clietn.sayHi("liuxiao"));
}
}

参考:http://haohaoxuexi.iteye.com/blog/1985995