Apache Axis (Apache eXtensible Interaction System) is an

open-source Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use the source code, design documents, or content of the product. The open-source model is a decentralized so ...

XML Extensible Markup Language (XML) is a markup language and file format for storing, transmitting, and reconstructing arbitrary data. It defines a set of rules for encoding documents in a format that is both human-readable and machine-readable. T ...

based Web service framework. It consists of a

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and a

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implementation of the

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server, and various utilities and APIs for generating and deploying

Web Web most often refers to: * Spider web, a silken structure created by the animal * World Wide Web or the Web, an Internet-based hypertext system Web, WEB, or the Web may also refer to: Computing * WEB, a literate programming system created by ...

service applications. Using Apache Axis, developers can create interoperable,

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applications. Axis development takes place under the auspices of the

Apache Software Foundation The Apache Software Foundation (ASF) is an American nonprofit corporation (classified as a 501(c)(3) organization in the United States) to support a number of open source software projects. The ASF was formed from a group of developers of the ...

Axis for Java

When using the Java version of Axis there are two ways to expose Java code as Web service. The easiest one is to use Axis native JWS (Java Web Service) files. Another way is to use custom deployment. Custom deployment enables you to customize resources that should be exposed as Web services. See also Apache Axis2.

JWS Web service creation

JWS files contain Java class source code that should be exposed as Web service. The main difference between an ordinary java file and jws file is the file extension. Another difference is that jws files are deployed as

source code In computing, source code, or simply code, is any collection of code, with or without comments, written using a human-readable programming language, usually as plain text. The source code of a program is specially designed to facilitate the ...

and not compiled

class file A Java class file is a file (with the filename extension) containing Java bytecode that can be executed on the Java Virtual Machine (JVM). A Java class file is usually produced by a Java compiler from Java programming language source files ( fi ...

s. The following example will expose methods ''add'' and ''subtract'' of class Calculator. public class Calculator

JWS Web service deployment

Once the Axis servlet is deployed, you need only to copy the jws file to the Axis directory on the server. This will work if you are using an

Apache Tomcat Apache Tomcat (called "Tomcat" for short) is a free and open-source implementation of the Jakarta Servlet, Jakarta Expression Language, and WebSocket technologies. It provides a "pure Java" HTTP web server environment in which Java code can also ...

container. In the case that you are using another web container, custom

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archive creation will be required .

JWS Web service access

JWS Web service is accessible using the URL http://localhost:8080/axis/Calculator.jws . If you are running a custom configuration of

or a different container, the URL might be different.

Custom deployed Web service

Custom Web service

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requires a specific deployment descriptor called WSDD (Web Service Deployment Descriptor) syntax. It can be used to specify resources that should be exposed as Web services. Current version (1.3) supports * RPC services * EJB - stateless ( Enterprise Java Bean)

Automated generation of WSDL

When a Web service is exposed using Axis it will generate a WSDL file automatically when accessing the Web service URL with ''?WSDL'' appended to it.

Related technologies

* Apache Axis2 - re-design/write of Axis *

Java Web Services Development Pack The Java Web Services Development Pack (JWSDP) is a free software development kit (SDK) for developing Web Services, Web applications and Java applications with the newest technologies for Java. Oracle replaced JWSDP with GlassFish. All component ...

- web services framework *

Apache CXF Apache CXF is an open source software project developing a Web services framework. It originated as the combination of Celtix developed by IONA Technologies and XFire developed by a team hosted at Codehaus in 2006. These two projects were combin ...

- other Apache web services framework (old

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& Celtix) * XML Interface for Network Services - RPC/web services framework *

Web Services Invocation Framework The Web Services Invocation Framework (WSIF) supports a simple and flexible Java API for invoking any Web Services Description Language (WSDL)-described service. Using WSIF, WSDL can become the centerpiece of an integration framework for accessing ...

- Java API for invoking Web services * webMethods Glue - commercial web services enabling product

References

External links

* /axis.apache.org/ Apache Axis Homepageat the Apache Software Foundation {{Apache Software Foundation Axis Web services Web service specifications