使用CXF简单开发webservice的实例

1、建立一个web Project,导入相应的jar包

点击下载cxf的jar包

2、定义将要被暴露成webservice的接口

package com.xzb.demo.interfaces;

import javax.jws.WebService;

@WebService
public interface HelloWorld {
public String sayHello(String name);
}

3、定义实现接口的Impl

package com.xzb.demo.impl;

import javax.jws.WebParam;
import javax.jws.WebService;
import javax.jws.soap.SOAPBinding;
import javax.jws.soap.SOAPBinding.Style;

import com.xzb.demo.interfaces.HelloWorld;

@WebService
@SOAPBinding(style=Style.RPC)
public class HelloWorldImpl implements HelloWorld {

public String sayHello(@WebParam(name="name")String name) {
return name+" say:Hello world!";
}
}

4、发布及访问web Service

（1）代码实现

发布web Service：

package com.xzb.demo.serviceApp;

import javax.xml.ws.Endpoint;
import com.xzb.demo.impl.HelloWorldImpl;

public class WebServiceApp {
public static void main(String[] args) {
System.out.println("web service start");
HelloWorldImpl implementor= new HelloWorldImpl();
String address="http://localhost:80/helloWorld";
Endpoint.publish(address, implementor);
System.out.println("web service started");
}

}

运行以上程序后，访问地址http://localhost/helloWorld?wsdl，即可查看到对应的wsdl。

This XML file does not appear to have any style information associated with it. The document tree is shown below.
<wsdl:definitions xmlns:ns1="http://interfaces.demo.xzb.com/" xmlns:ns2="http://schemas.xmlsoap.org/soap/http" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:tns="http://impl.demo.xzb.com/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="HelloWorldImplService" targetNamespace="http://impl.demo.xzb.com/">
<wsdl:import location="http://localhost/helloWorld?wsdl=HelloWorld.wsdl" namespace="http://interfaces.demo.xzb.com/"></wsdl:import>
<wsdl:binding name="HelloWorldImplServiceSoapBinding" type="ns1:HelloWorld">
<soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
<wsdl:operation name="sayHello">
<soap:operation soapAction="" style="document"/>
<wsdl:input name="sayHello">
<soap:body use="literal"/>
</wsdl:input>
<wsdl:output name="sayHelloResponse">
<soap:body use="literal"/>
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
<wsdl:service name="HelloWorldImplService">
<wsdl:port binding="tns:HelloWorldImplServiceSoapBinding" name="HelloWorldPort">
<soap:address location="http://localhost:80/helloWorld"/>
</wsdl:port>
</wsdl:service>
</wsdl:definitions>

备注：虽然在Impl中采用注释的方式标识接口方法所需参数@WebParam(name="name")，但不起作用。试了之后，发现如果接口不采用@WebService，只在接口实现类上采用@WebService，@WebParam(name="name")，在wsdl上即可看到所需参数和返回值等信息。

客户端访问web Service：

package com.xzb.demo.serviceClient;

import org.apache.cxf.jaxws.JaxWsProxyFactoryBean;
import com.xzb.demo.interfaces.HelloWorld;

public class HelloWorlClient {
public static void main(String[] args) throws Exception {

JaxWsProxyFactoryBean svr = new JaxWsProxyFactoryBean();
svr.setServiceClass(HelloWorld.class);
svr.setAddress("http://localhost:80/helloWorld");
HelloWorld hw = (HelloWorld) svr.create();
System.out.println(hw.sayHello("xzb"));

}

}

client运行结果：

2013-10-18 10:38:49 org.apache.cxf.service.factory.ReflectionServiceFactoryBean buildServiceFromClass
信息: Creating Service {http://interfaces.demo.xzb.com/}HelloWorldService from class com.xzb.demo.interfaces.HelloWorld
xzb say:Hello world!

（2）与spring结合实现

在spring配置文件上发布webservice和客户端访问webservice的配置。配置代码如下：

<?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"/>

<!--在项目的  /helloWorld   路径将 com.xzb.demo.impl.HelloWorldImpl 暴露出去-->
<jaxws:endpoint
id="helloWorld"
implementor="com.xzb.demo.impl.HelloWorldImpl"
address="/helloWorld"  />

<!-- 客户端访问webservice配置 -->
<bean id="client" class="com.xzb.demo.interfaces.HelloWorld"
factory-bean="clientFactory" factory-method="create"/>

<bean id="clientFactory" class="org.apache.cxf.jaxws.JaxWsProxyFactoryBean">
<property name="serviceClass" value="com.xzb.demo.interfaces.HelloWorld"/>
<property name="address" value="http://localhost:80/CXFWebServiceTest/webservice/helloWorld"/>
</bean>

</beans>

然后，访问http://localhost/CXFWebServiceTest/webservice/helloWorld?wsdl可以查看wsdl，client只要通过访问http://localhost:80/CXFWebServiceTest/webservice/helloWorld，就可以调用到接口com.xzb.demo.interfaces.HelloWorld提供的方法。

package com.xzb.demo.serviceClient;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.xzb.demo.interfaces.HelloWorld;

public class HelloWorlClient {
public static void main(String[] args) throws Exception {

ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
HelloWorld client = (HelloWorld)context.getBean("client");
System.out.println(client.sayHello("xzb"));

}

}

初步接触cxf，尚有很多不清楚的地方，如果错误，请指正。（以上client访问webservice，必须依赖于service端的接口，才能调用到正确的方法，但感觉从wsdl上得出信息貌似不太容易，因为目前还不太熟悉。）