service框架用apache CXF,服務器tomcat ,還有spring框架
OpenSource中關於CXF的簡介:Apache CXF一個開源的Service框架,它實現了JCP與Web Service中一些重要標準。CXF簡化了構造,集成,面向服務架構(SOA)業務組件與技術的靈活複用。在CXF中,Service使用WSDL標準定義並能夠使用各種不同的消息格式(或binding)和網絡協議(transports)包括SOAP、XML(通過HTTP或JMS)進行訪問。CXF同樣支持多種model 如:JAX-WS,JBI,SCA和CORBA service。CXF設計成可靈活部署到各種容器中包括Spring-based,JBI,SCA, Servlet和J2EE容器。
用CXF構建webservice程序的大致流程如下:
1 配置web.xml文件,加載CXF
2 編寫java接口,和接口的實現
3 在spring的applicationContext.xml中配置java文件
4 創建beans.xml文件,裏面配置接口的實現類
5 運行tomca服務器即可生成wsdl文件
6 編寫測試代碼:編寫java測試文件和client-beans.xml文件
7編寫運行客戶端文件所需的服務器,可以單獨編寫,也可以在隨tomcat啓動
示例代碼。首先下載cxf,然後解壓,將lib下的所有jar包拷到工程下面
一 最簡單的helloword
1 web.xml
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<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>
<servlet>
<servlet-name>CXFServlet</servlet-name>
<display-name>CXF Servlet</display-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>/*</url-pattern>
</servlet-mapping>
</web-app>
2 接口HelloWord.java和接口的實現HelloWordImpl.java
import javax.jws.WebService;
/** *//**
* service interface
*
* @author
*
*/
@WebService
public interface HelloWord ...{
String sayHi(String text);
}
import javax.jws.WebService;
/** *//**
* implementation
*
* @author
*
*/
@WebService
public class HelloWordImpl implements HelloWord ...{
public String sayHi(String text) ...{
return "Hi" + text;
}
}
3 beans.xml
<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="helloWord"
implementor="com.demo.HelloWordImpl" address="/HelloWord" />
</beans>
4 啓動tomcat服務器,在瀏覽器裏面輸入http://localhost:8888/helloword後頁面上會出現
{http://demo.com/}HelloWordImplPort ,點擊會看到生成的wsdl文件http://localhost:8888/helloword/HelloWord?wsdl
5 客戶端Client.java和client-beans.xml
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public final class Client ...{
private Client() ...{
}
public static void main(String args[]) throws Exception ...{
// START SNIPPET: client
ApplicationContext context = new ClassPathXmlApplicationContext(
new String[] ...{ "com/demo/client-beans.xml" });
HelloWord client = (HelloWord) context.getBean("client");
String response = client.sayHi("+what????");
System.out.println("Response: " + response);
System.exit(0);
// END SNIPPET: client
}
}
<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-2.0.xsd
http://cxf.apache.org/jaxws http://cxf.apache.org/schema/jaxws.xsd">
<bean id="client" class="com.demo.HelloWord"
factory-bean="clientFactory" factory-method="create" />
<bean id="clientFactory"
class="org.apache.cxf.jaxws.JaxWsProxyFactoryBean">
<property name="serviceClass" value="com.demo.HelloWord" />
<property name="address"
value="http://localhost:9002/HelloWord" />
</bean>
</beans>
6 客戶端運行時所需的服務器Server.java
import org.mortbay.jetty.Connector;
import org.mortbay.jetty.Handler;
import org.mortbay.jetty.handler.DefaultHandler;
import org.mortbay.jetty.handler.HandlerCollection;
import org.mortbay.jetty.nio.SelectChannelConnector;
import org.mortbay.jetty.webapp.WebAppContext;
public class Server ...{
protected Server() throws Exception ...{
System.out.println("Starting Server");
org.mortbay.jetty.Server server = new org.mortbay.jetty.Server();
SelectChannelConnector connector = new SelectChannelConnector();
connector.setPort(9002);
server.setConnectors(new Connector[] ...{connector});
WebAppContext webappcontext = new WebAppContext();
webappcontext.setContextPath("/");
webappcontext.setWar("WebRoot");
HandlerCollection handlers = new HandlerCollection();
handlers.setHandlers(new Handler[] ...{webappcontext, new DefaultHandler()});
server.setHandler(handlers);
server.start();
System.out.println("Server ready...");
server.join();
}
public static void main(String args[]) throws Exception ...{
new Server();
}
}
7 運行客戶端Client.java的順序,先啓動tomcat,然後運行Server.java,最後運行Client.java
二 不單獨編寫Server.java文件,讓其和tomcat一同啓動.需要改動的地方
1 web.xml
<param-name>contextConfigLocation</param-name>
<param-value