java WebService例子

最新推荐文章于 2026-01-08 17:10:56 发布

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本文详细介绍如何使用Apache Axis部署及调用Java WebService。包括安装配置、DII与DynamicProxy方式开发、通过wsdd文件发布服务等步骤，并提供客户端访问示例。

java WebService例子收藏

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

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 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

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/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

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

deploy.wsdd

<deployment xmlns=

"http://xml.apache.org/Axis/wsdd/"

xmlns:java=

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

<service name="sayhello"

provider="java:RPC">

</requestFlow>

<parameter name="className"

value="server.SayHello"/>

<parameter name="allowedMethods"

value="*"/>

</service>

</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);

}

您也可以写server-config.wsdd

<?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">

<parameter name="attachments.implementation"

value="org.apache.axis.attachments.AttachmentsImpl"/>

</handler>

</handler>

</requestFlow>

</globalConfiguration>

</requestFlow>

</service>

</requestFlow>

</transport>

</responseFlow>

</transport>

</deployment>

这个更好用些