简单的webservice开发例子

作者：wjhdtx

摘自csdn

简单的webservice开发例子

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HelloClient

public class HelloClient {
public String getName(String name) {
return "hello " + name;
}
}

2、将源码拷贝到Axis_HOME下，重命名为 HelloClient.jws

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

4、编写访问服务的客户端 TestHelloClient.java

public class SayHelloClient2 {
public static void main(String[] args) {
try {
String endpoint = "http://localhost:8080/Axis/HelloClient.jws";

Service service = new Service();
Call call = null;

call = (Call) service.createCall();

call.setOperationName(new QName("http://localhost:8080/Axis/HelloClient.jws", "getName"));
call.setTargetEndpointAddress(new java.net.URL(endpoint));

String ret = (String) call.invoke(new Object[] { "zhangsan" });
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

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

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("john"));
} 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server,SayHello.java，编译server.SayHello.java

package server;

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

2.编写LogHandler.java

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

deploy.wsdd

<?xml version="1.0" encoding="UTF-8"?>
<ns1:deployment xmlns:ns1="http://xml.apache.org/Axis/wsdd/" xmlns:java="http://xml.apache.org/Axis/wsdd/providers/java">
<ns1:handler name="print" type="java:LogHandler"/>
<ns1:service name="sayhello" provider="java:RPC">
<ns1:requestFlow>
<ns1:handler type="print"/>
</ns1:requestFlow>
<ns1:parameter name="className" value="server.SayHello"/>
<ns1:parameter name="allowedMethods" value="*"/>
</ns1:service>
</ns1:deployment>

3、将编译后的文件拷贝到Axis_HOME/WEB-INF/classes下，如：D:\tomcat\webapps\Axis\WEB-INF\classes

4、发布服务：

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

5、生成client stub文件

a:方式1

将SayHello.java拷贝到Axis_HOME/下，重命名为SayHello.jws，

执行下面的命令生存client stub

java org.apache.Axis.wsdl.WSDL2Java

-p client http://localhost:8080
/Axis/services/SayHello.jws?wsdl

b:方式2

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

生成的stub client文件列表为：

1.SayHello.java

2.SayHelloService.java。

3.SayHelloServiceLocator.java

4.SayHelloSoapBindingStub.java

6、编写客户端程序，编译并执行

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("zhangsan");
System.out.println(retValue);
} catch (Exception e) {
System.err.println("Execution failed. Exception: " + e);
}
}
}