女人梦见吃蛇肉:Axis开发Web Service

　　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 {
               
                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

       
        xmlns:java= "http://xml.apache.org/Axis/wsdd/providers/java">
          
          
              
                  
              
             
             
          
       

　　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。

　　
　　xmlns:java="http://xml.apache.org/axis/wsdd/providers/java">
　　
　　　
　　　value="org.apache.axis.attachments.AttachmentsImpl"/>