Axis开发Web Service实例(三种方式)

    技术2022-05-11  18

    一、Axis安装   1、环境 J2SE SDK 1.3 or 1.4:我使用 1.4.2     Servlet Container:我使用的Tomcat 5.0

      2、到 http://ws.Apache.org/axis/ 网站下载Axis安装包

      3、解压缩安装包,将Axis UNZIP_PATH/Axis-version/webapps下的Axis包拷贝到TOMCAT_HOME/webapps/下,以下约定Axis_HOME为该TOMCAT_HOME/webapps/axis目录

      4、启动tomcat, 访问http://localhost:8080/axis 检查安装是否成功

      5、以上步骤执行成功,可以开发webservice例子了

      Axis支持三种web service的部署和开发,分别为:

      1、Dynamic Invocation Interface ( DII)

      2、Stubs方式

      3、Dynamic Proxy方式

    二、编写DII(Dynamic Invocation Interface )方式web服务

      1.编写服务端程序SayHello.java

            public class SayHello {             public String getName(String name) {                 return "hello "+name;             }         }   2、将源码拷贝到Axis_HOME下,重命名为SayHello.jws

      3、访问连接http://localhost:8080/axis/SayHello.jws?wsdl ,页面显示Axis自动生成的wsdl

      4、编写访问服务的客户端 SayHelloClient.java

            import org.apache.Axis.client.Call;         import org.apache.Axis.client.Service;         import javax.xml.namespace.QName;         import javax.xml.rpc.ServiceException;         import java.net.MalformedURLException;         import java.rmi.RemoteException;

            public class SayHelloClient {             public static void main(String[] args) {                 try {                     String endpoint = "http://localhost:8080/axis/SayHello.jws";                     Service service = new Service();                     Call call = null;                     call = (Call) service.createCall();                     call.setOperationName(new QName("http://localhost:8080/axis/SayHello.jws",       "getName"));                     call.setTargetEndpointAddress(new java.net.URL(endpoint));                     String ret = (String) call.invoke(new Object[] {"someone's name"});                     System.out.println("return value is " + ret);                 }                  catch (Exception ex) {                     ex.printStackTrace();                 }             }         } 三、编写Dynamic Proxy方式访问服务

      1、编写部署服务端程序,同上边DII方式,本次仍使用上边部署的HelloClient

      2、编写代理接口

            public interface HelloClientInterface extends java.rmi.Remote {             public String getName(String name) throws java.rmi.RemoteException;         }

      3、编写并执行客户端程序TestHelloClient.java

            import javax.xml.rpc.Service;         import javax.xml.rpc.ServiceFactory;         import java.net.URL;         import javax.xml.namespace.QName;

            public class TestHelloClient {             public static void main(String[] args) {                 try {                     String wsdlUrl = "http://localhost:8080/axis/SayHello.jws?wsdl";                     String nameSpaceUri = "http://localhost:8080/axis/SayHello.jws";                     String serviceName = "SayHelloService";                     String portName = "SayHello";

                        ServiceFactory serviceFactory = ServiceFactory.newInstance();                     Service afService = serviceFactory.createService(new URL(wsdlUrl), new QName(nameSpaceUri, serviceName));                     HelloClientInterface proxy = (HelloClientInterface)                 afService.getPort(new QName(nameSpaceUri, portName), HelloClientInterface.class);                     System.out.println("return value is "+proxy.getName("someone's name") ) ;                 } catch(Exception ex) {                     ex.printStackTrace() ;                 }             }         }

    四、编写wsdd发布web服务,编写stub client访问web服务

      1、编写服务端程序SayHello.java,编译SayHello.java

            package server;         public class SayHello {             public String getName(String name) {                 return "hello "+name;             }         }

          2.  编写LogHandler.java

            import org.apache.axis.AxisFault;         import org.apache.axis.Handler;         import org.apache.axis.MessageContext;         import org.apache.axis.handlers.BasicHandler;

            import java.util.Date;

            public class LogHandler extends BasicHandler {             public void invoke(MessageContext msgContext) throws AxisFault {                 /** Log an access each time we get invoked. */                 try {                     Handler serviceHandler = msgContext.getService();                     Integer numAccesses = (Integer)serviceHandler.getOption("accesses");                     if (numAccesses == null) numAccesses = new Integer(0);                     numAccesses = new Integer(numAccesses.intValue() + 1);                     Date date = new Date();                     String result = date + ": service " + msgContext.getTargetService() + " accessed " + numAccesses + " time(s).";                     serviceHandler.setOption("accesses", numAccesses);                     System.out.println(result);                 } catch (Exception e) {                     throw AxisFault.makeFault(e);                 }             }         }

      3、编写wsdd文件

            <?xml version="1.0" encoding="UTF-8"?>         <deployment xmlns= "http://xml.apache.org/Axis/wsdd/"   xmlns:java= "http://xml.apache.org/Axis/wsdd/providers/java">            <handler name="print" type="java:LogHandler"/>             <service name="SayHello" provider="java:RPC">               <requestFlow>                    <handler type="print"/>               </requestFlow>               <parameter name="className" value="server.SayHello"/>               <parameter name="allowedMethods" value="*"/>            </service>         </deployment>

      4、将编译后的SayHello.class和LogHandler.class文件拷贝到Axis_HOME/WEB-INF/classes下,如:D:/tomcat/webapps/axis/WEB-INF/classes

      5、发布服务:

      java org.apache.axis.client.AdminClient deploy.wsdd

      6、生成client stub文件

      方式一:jws即时自动部署

      将SayHello.java拷贝到Axis_HOME/services目录下,重命名为SayHello.jws,执行下面的命令生成client stub

           java org.apache.axis.wsdl.WSDL2Java -p client  http://localhost:8080/axis/services/SayHello.jws?wsdl   注意:这种方式要求在你写的类中不能有具体包的信息,因为这正是Axis即时部署不支持的。由于在SayHello.java中特意加入了"package server;",因此不能采用jws即时自动部署。   自动部署相当简单,但当你需要:   .映射自己的类型时   .不需要暴露源代码时   .需要自己的路径和包管理时   .对用户操作Web Services的事件进行相应时

      就需要通过WSDD来自定义部署。

      方式二:通过WSDD自定义部署

      执行如下命令生成SayHello.wsdl

           java org.apache.axis.wsdl.Java2WSDL -oSayHello.wsdl -lhttp://localhost:8080/axis/services/SayHello -nSayHello server.SayHello

      执行如下命令生成client stub

          java org.apache.axis.wsdl.WSDL2Java SayHello.wsdl  -p client

      这时在当前目录下生成了client子目录,在client目录中生成的stub client文件列表为:

      (1).SayHello_PortType.java

      (2).SayHelloService.java

      (3).SayHelloServiceLocator.java

      (4).SayHelloSoapBindingStub.java

      6、编写客户端程序,编译并执行

            import client.*;         public class SayHelloClient {             public static void main(String[] args){                 try{                     SayHelloService service = new client.SayHelloServiceLocator();                     client.SayHello_PortType client = service.getSayHello();                     String retValue=client.getName("someone's name");                     System.out.println(retValue);                 } catch (Exception e) {                     System.err.println("Execution failed. Exception: " + e);                 }             }         }

      您也可以编写server-config.wsdd,存放在Axis_HOME/WEB-INF目录下。   <?xml version="1.0" encoding="UTF-8"?>   <deployment xmlns="http://xml.apache.org/axis/wsdd/" xmlns:java="http://xml.apache.org/axis/wsdd/providers/java">   <globalConfiguration>    <parameter name="adminPassword" value="admin"/>    <parameter name="attachments.implementation" value="org.apache.axis.attachments.AttachmentsImpl"/>    <parameter name="sendXsiTypes" value="true"/>    <parameter name="sendMultiRefs" value="true"/>    <parameter name="sendXMLDeclaration" value="true"/>    <parameter name="axis.sendMinimizedElements" value="true"/>    <requestFlow>     <handler type="java:org.apache.axis.handlers.JWSHandler">      <parameter name="scope" value="session"/>     </handler>     <handler type="java:org.apache.axis.handlers.JWSHandler">      <parameter name="scope" value="request"/>      <parameter name="extension" value=".jwr"/>     </handler>    </requestFlow>   </globalConfiguration>   <handler name="LocalResponder" type="java:org.apache.axis.transport.local.LocalResponder"/>   <handler name="URLMapper" type="java:org.apache.axis.handlers.http.URLMapper"/>   <handler name="Authenticate" type="java:org.apache.axis.handlers.SimpleAuthenticationHandler"/>   <handler name="print" type="java:LogHandler"/>   <service name="sayhello" provider="java:RPC">    <requestFlow>     <handler type="print"/>    </requestFlow>    <parameter name="className" value="server.SayHello"/>    <parameter name="allowedMethods" value="*"/>   </service>   <transport name="http">    <requestFlow>     <handler type="URLMapper"/>     <handler type="java:org.apache.axis.handlers.http.HTTPAuthHandler"/>    </requestFlow>   </transport>   <transport name="local">    <responseFlow>     <handler type="LocalResponder"/>    </responseFlow>   </transport>   </deployment>

     

    http://blog.csdn.net/lusonglin3g/archive/2009/09/24/4587440.aspx

     


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