WebService系列中CXF方式(二)

1.设置构建

<dependency>

??? <groupId>org.apache.ws.xmlschema</groupId>

??? <artifactId>xmlschema-core</artifactId>

??? <version>2.0.3</version>

</dependency>

<dependency>

??? <groupId>org.apache.cxf</groupId>

??? <artifactId>cxf</artifactId>

??? <version>2.6.2</version>

</dependency>

<dependency>

??? <groupId>org.apache.neethi</groupId>

??? <artifactId>neethi</artifactId>

??? <version>3.0.2</version>

</dependency>

<dependency>

??? <groupId>wsdl4j</groupId>

??? <artifactId>wsdl4j</artifactId>

??? <version>1.6.2</version>

</dependency>

<dependency>

??? <groupId>org.apache.geronimo.specs</groupId>

??? <artifactId>geronimo-jaxws_2.2_spec</artifactId>

??? <version>1.1</version>

</dependency>

<dependency>

??? <groupId>org.apache.geronimo.specs</groupId>

??? <artifactId>geronimo-ws-metadata_2.0_spec</artifactId>

??? <version>1.1.3</version>

</dependency>???????

2.编写服务

@WebService(name = "DataService",targetNamespace = DataServiceConstants.TARGET_NAMESPACE)

@WebServiceClient(name = "DataServerService",targetNamespace = DataServiceConstants.TARGET_NAMESPACE)

publicinterface DataService {

??? @WebMethod(operationName = "GetTopGroup",action = DataServiceConstants.SOAP_ACTION_PREFIX

?????????? + "GetTopGroup")

??? @WebResult(name = "GetTopGroupResult",partName = "GetTopGroupResult",targetNamespace = DataServiceConstants.TARGET_NAMESPACE)

??? String getTopGroup(

?????????? @WebParam(name = "account",targetNamespace = DataServiceConstants.TARGET_NAMESPACE) String account,

?????????? @WebParam(name = "password",targetNamespace = DataServiceConstants.TARGET_NAMESPACE) String password);

}

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2.1:确认参数在xml文件中名称正确，你需要使用,因为java接口在.class文件中不存储参数名称，所以@WebParam注解是必须的，因此如果你不使用这个注解，参数将被命名为arg0 :

@WebParam(name = "account",targetNamespace = DataServiceConstants.TARGET_NAMESPACE) String account;

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2.2:在实现类上的@WebService注解使CXF知道使用那个接口来创建WSDL，我们示例中是DataService接口

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3.发布服务

3.1:简单发布

DataService?? implementor = new DataService();?

String address = "http://localhost:9000/DataService";?

Endpoint.publish(address,implementor);

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3.2：你可以添加日志拦截器，进行发布

DataServiceimplementor = new DataService();??

JaxWsServerFactoryBean svrFactory = new JaxWsServerFactoryBean();??

svrFactory.setServiceClass(DataService.class);??

svrFactory.setAddress("http://localhost:9000/DataService");??

svrFactory.setServiceBean(implementor);??

svrFactory.getInInterceptors().add(new LoggingInInterceptor());??

svrFactory.getOutInterceptors().add(new LoggingOutInterceptor());??

svrFactory.create();

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4.访问服务

JaxWsProxyFactoryBean factory = new JaxWsProxyFactoryBean();??

factory.getInInterceptors().add(new LoggingInInterceptor());??

factory.getOutInterceptors().add(new LoggingOutInterceptor());??

factory.setServiceClass(DataService.class);??

factory.setAddress("http://localhost:9000/DataService");??

DataServiceclient = (DataService) factory.create();??

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String reply = client.sayHi("HI");??

System.out.println("Server said: " + reply);??

System.exit(0);??

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总述：访问服务的同时，可以采用创建型模式中的工厂模式去设计，通过工厂类去创建服务，并访问服务；

publicclass DataServiceClientFactory implements FactoryBean<DataService> {

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??? String address;

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??? publicvoid setAddress(String address) {

?????? this.address = address;

??? }

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??? @Override

??? public DataService getObject() throws Exception {

?????? JaxWsProxyFactoryBean factory = new JaxWsProxyFactoryBean();

?????? factory.setServiceClass(DataService.class);

?????? factory.setAddress(address);

?????? if (factory.getProperties() == null) {

?????????? Map<String,Object> properties = new HashMap<String,Object>();

?????????? factory.setProperties(properties);

?????? }

?????? factory.getProperties().put("set-jaxb-validation-event-handler",

????????????? "false");

?????? DataService service = (DataService) factory.create();

?????? return service;

??? }

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??? @Override

??? public Class<?> getObjectType() {

?????? return DataService.class;

??? }

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??? @Override

??? publicboolean isSingleton() {

?????? returntrue;

??? }

}

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5：spring配置,在spring配置文件中配置要发布的web服务:

<beans xmlns:jaxws="http://cxf.apache.org/jaxws"??? xsi:schemaLocation="http://www.springframework.org/schema/beans

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" />

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<jaxws:server id="dataServiceServer"

?????? serviceClass="com.dingli.component.server.dataservice.DataService"

?????? address="http://localhost/DataService">

?????? <jaxws:serviceBean>

?????????? <ref bean="dataserviceBean" />

?????? </jaxws:serviceBean>

??? </jaxws:server>

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<!-- 另一种方式endpoint,与server不同的是显示给用户的wsdl不同?

<jaxws:endpoint????? id="dataService"???? implementor="com.cxf.impl.DataServiceImpl"???? address="http://localhost/DataService" />??

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</beans>

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6:webservice注解详解

jax-ws是java开发webservice的标准API：

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(1).javax.jws中常用的注解：

a.@Webservice：将一个类声明为webservice。

b.@Webparam：指定webservice的参数

c.@WebResul：指定webservice的返回值。

d.@WebMethod：指定某个方法为webservice对外提供的方法

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(2).javax.jws.soap中常用的注解：

@SOAPBinding：将某个接口绑定为webservice

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7:WebService的调用过程：

8.JAXB(java API for XML Bing)：

JAXB是一种java对象和xml数据格式之间相互转换的API。

(1).JAXB的作用：

Java Object ——> JAXB ——> XML

(2).JAXB的工作原理：

(3).JAXB的常用注解：

a.@XmlRootElement：将Java类映射为XML的根节点。

b.@XmlElement：将属性或方法映射为XML的节点。

c.@XmlAccessorType：指明映射那些方法或者字段。

d.@XmlTransient：指明那些方法或者字段不需要和xml进行映射。

e.@XmlJavaTypeAdapter：Xml和Java对象的转换。