WebService认识二(使用Servlet搭建WebService服务)

注：在WebService认识一的基础之上进行补充；

准备：添加geronimo-jaxws_2.2_spec-1.1.jar

操作：

1：建立一个Servlet：CXFInitServiceServlet.java

public class CXFInitServiceServlet extends CXFNonspringServlet {
	
	private static final long serialVersionUID = 1L;

	@Override
	protected void loadBus(ServletConfig sc) {//在init的时候调用
		super.loadBus(sc);
		Bus bus = this.getBus();
		BusFactory.setDefaultBus(bus);
		//当有多个webservice需要访问时，我们通过在web.xml中添加参数并读取的方式动态加载
        @SuppressWarnings("unchecked")
		Enumeration<String> enumeration = this.getinitParameterNames();  
        while (enumeration.hasMoreElements()) {  
        	String elemName = enumeration.nextElement();
            try {  
                Class<?> clazz = Class.forName(this.getinitParameter(elemName));  
              	Endpoint.publish(elemName,clazz.newInstance());  
            } catch (Exception e) {  
                e.printstacktrace();  
            }  
        }  
	}
	
}

为该Servlet在web.xml中进行配置：

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>WebServiceExp</display-name>
	  <servlet>
	    <servlet-name>CXFServlet</servlet-name>
	    <servlet-class>org.wjlmgqs.web.CXFInitServiceServlet</servlet-class>
	   	<init-param>  
	             <param-name>/user</param-name>  
	             <param-value>org.wjlmgqs.service.imp.UserServiceImp</param-value>  
	        </init-param> 
	    <load-on-startup>1</load-on-startup>
	  </servlet>
	  <servlet-mapping>
	    <servlet-name>CXFServlet</servlet-name>
	    <url-pattern>/webservice/*</url-pattern>
	  </servlet-mapping>
</web-app>

注：我们通过在init-param中配置webservice接口实现类，然后再servlet中读取改配置并对外发布。此处可以配置多个。

3：修改客户端

public class UserWebServiceClient {
	
	public static void main(String[] args) {
		JaxWsProxyfactorybean factory = new JaxWsProxyfactorybean();  
        factory.setServiceClass(UserService.class);
        factory.setAddress("http://localhost:8080/WebServiceExp/webservice/user?wsdl");
		UserService userService = (UserService) factory.create();
        List<User> findUser = userService.findUser("wang");
        for(User u : findUser){
        	System.out.println(u.toString());
        }
	}
}

结果同WebService认识一的结果

4：使用浏览器访问：http://localhost:8080/WebServiceExp/webservice/user?wsdl