WebService(1)-AXIS入门

webService 是一种基于http协议的组件
webService 开发框架：AXIS(Apache eXtensible Interaction System),xFire,
WSDD就是WEB服务分布描述（Web Service Deployment Descriptor）, 它定义了WEB服务的接口，如服务名、提供的方法、方法的参数等信息。
AXIS 发布的两种方式
即时发布 jws java web service  只要把.java 文件改成.jws文件，发布就可以了,但是不支持带包类
定制发布 wsdd web service Deployment Descriptor 这个发布需要配置文件*.wsddserver-config.wsdd文件

一个简单的AXIS应用

 (1):需要的jar 包
 activation.jar
 axis.jar
 commons-discovery.jar
 commons-logging.jar
 jaxrpc.jar
 log4j-1.2.15.jar
 mail.jar
 wsdl4j.jar
 spring.jar

<dependencies><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>3.8.1</version><scope>test</scope></dependency><dependency><groupId>javax.activation</groupId><artifactId>activation</artifactId><version>1.1.1</version></dependency><dependency><groupId>axis</groupId><artifactId>axis</artifactId><version>1.3</version></dependency><dependency><groupId>commons-discovery</groupId><artifactId>commons-discovery</artifactId><version>0.5</version></dependency><dependency><groupId>commons-logging</groupId><artifactId>commons-logging</artifactId><version>1.1.1</version></dependency><dependency><groupId>xfire</groupId><artifactId>xfire-jaxrpc</artifactId><version>20041222</version></dependency><dependency><groupId>log4j</groupId><artifactId>log4j</artifactId><version>1.2.9</version></dependency><dependency><groupId>javax.mail</groupId><artifactId>mail</artifactId><version>1.3.2</version><type>pom</type></dependency><dependency><groupId>wsdl4j</groupId><artifactId>wsdl4j</artifactId><version>1.5.1</version></dependency><dependency><groupId>javax.servlet</groupId><artifactId>servlet-api</artifactId><version>2.2</version></dependency><dependency><groupId>javax.servlet</groupId><artifactId>javax.servlet-api</artifactId><version>3.0.1</version></dependency></dependencies>

 

 (2) web.xml配置
 <!-- ================= webservice开始 ===================================== -->
  

 <listener>  <listener-class>org.apache.axis.transport.http.AxisHTTPSessionListener</listener-class>     </listener>     <!-- 这个servlet会加载server-config.wsdd -->   <servlet>     <servlet-name>AxisServlet</servlet-name>     <servlet-class>org.apache.axis.transport.http.AxisServlet</servlet-class>     <load-on-startup>2</load-on-startup>   </servlet>   <servlet-mapping>     <servlet-name>AxisServlet</servlet-name>     <url-pattern>/services/*</url-pattern>   </servlet-mapping>  <!-- 对../services/.wsdd请求和.../jws 都交由webService来处理 -->    <servlet-mapping>     <servlet-name>AxisServlet</servlet-name>     <url-pattern>*.jws</url-pattern>   </servlet-mapping>

 (3) 在WEB-INFO 下增加server-config.wsdd文件，其配置如下
  

<deployment xmlns="http://xml.apache.org/axis/wsdd/"        xmlns:java="http://xml.apache.org/axis/wsdd/providers/java">        <handler name="URLMapper" type="java:org.apache.axis.handlers.http.URLMapper" />           <!-- 自定义服务 -->        <service name="ws" provider="java:RPC">        <parameter name="className"         value="cn.com.chenlly.ssh.webservice.axis.WSTestServiceImpl"/>        <parameter name="allowedMethods" value="*" />         <parameter name="scope" value="request"/>        </service>        <transport name="http">        <requestFlow>        <handler type="URLMapper" />        </requestFlow>        </transport> </deployment>

 

 (4) 定义如下service 服务

 

package cn.com.chenlly.ssh.webservice.axis; public interface WSTestService  {    public String readStr(); } package cn.com.chenlly.ssh.webservice.axis; import javax.xml.rpc.ServiceException; import org.springframework.context.ApplicationContext; import org.springframework.remoting.jaxrpc.ServletEndpointSupport; import cn.com.chenlly.ssh.test.manager.LoginManager; public class WSTestServiceImpl extends ServletEndpointSupport implements WSTestService {  //Spring 上下文  private ApplicationContext context;  //登录服务  private LoginManager loginManager;  @Override  protected void onInit() throws ServiceException {   System.out.println("webService init.....");   //拿到Spring 上下文   context = super.getApplicationContext();   loginManager = (LoginManager) context.getBean("loginManager");   loginManager.test();  }    @Override  public String readStr() {   return "HelloWorld";  }    @Override  public void destroy() {   super.destroy();  } }

 注意：登录服务在spring 配置文件里面已经注入了，在onInit()方法里会自动加载给webservice服务类使用。Spring使用ServletEndpointSupport来暴露WebService。
 ServletEndpointSupport AXIS 在每次请求时都会产生一个新实例，每次都会调用onInit()方法。

 (5) 客户端调用Webservice
 

package cn.com.chenlly.ssh.webservice.axis; import java.net.MalformedURLException; import javax.xml.rpc.ServiceException; import javax.xml.namespace.QName; import org.apache.axis.client.Call; import org.apache.axis.client.Service; public class WSTestServiceClient{  public static void main(String []args){   Service service = new Service();   try {    Call call = (Call) service.createCall();    String url = "http://192.168.1.98:8082/SSHProject/services/ws?wsdl";    QName qname = new QName(url,"readStr");    call.setOperationName(qname);    call.setTargetEndpointAddress(new java.net.URL(url));    String result = (String) call.invoke(new Object[]{});    System.out.println("===="+result);   } catch (Exception e) {    e.printStackTrace();   }  } }

 属性讲解：<parameter name="scope" value="request"/>
 request:这个选项会让AXIS为每个SOAP请求产生一个服务对象，
 session:会给每个调用WebService 的客户端创造一个服务对象
 application：这个选项程序只会在内存里面new 一个服务对象，然后为所有的webService 客户端服务