JAX-WS RI 2.3.1: A Web Services Framework with jaxws-rt 4.0.0
JAX-WS 4.0.0: A Guide to Download, Install, and Use
If you are looking for a way to create and consume SOAP web services in Java, you might have heard of JAX-WS, the Java API for XML Web Services. In this article, we will give you an overview of what JAX-WS is, why you should use the latest version 4.0.0, and how to download, install, and use it.
jaxws-rt 4.0.0 download
What is JAX-WS?
JAX-WS is a standardized API for creating and consuming SOAP (Simple Object Access Protocol) web services in Java. SOAP is an XML-based protocol for exchanging structured data over a network, using various transport protocols such as HTTP and SMTP.
JAX-WS is part of the Jakarta EE platform, formerly known as Java EE or Java Platform, Enterprise Edition. It provides a framework that simplifies the development of web services and clients, by hiding the low-level details of SOAP messages and XML processing.
Some of the main features of JAX-WS are:
It supports both top-down (contract-first) and bottom-up (contract-last) approaches for developing web services.
It uses annotations to define web service endpoints and clients, reducing the need for writing XML configuration files.
It supports various web service standards, such as WS-Addressing, WS-Policy, WS-Security, MTOM, and more.
It provides tools for generating WSDL (Web Services Description Language) documents, Java classes, and stubs from each other.
It integrates with JAXB (Java Architecture for XML Binding), the standard API for mapping Java objects to XML and vice versa.
It allows the use of custom data bindings, handlers, providers, dispatchers, and other extensions.
The first version of JAX-WS was released in 2005 as part of Java SE 6. Since then, several versions have been released, each adding new features and improvements.
The latest version of JAX-WS is 4.0.0, which was released in June 2021 as part of Jakarta EE 9.1.
Why JAX-WS 4.0.0?
If you are wondering why you should use JAX-WS 4.0.0 instead of previous versions, here are some reasons:
JAX-WS 4.0.0 Features
JAX-WS 4.0.0 introduces some new features that make it more compatible with Jakarta EE 9.1 and more convenient to use:
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It supports Jakarta XML Web Services 3.1 specification, which defines the API for creating and consuming SOAP web services in Jakarta EE.
It uses Jakarta namespace instead of javax namespace for all the classes and packages, following the namespace change from Java EE to Jakarta EE.
It supports Jakarta RESTful Web Services 3.1 specification, which defines the API for creating and consuming RESTful web services in Jakarta EE.
It supports Jakarta SOAP with Attachments 2.1 specification, which defines the API for handling SOAP messages with attachments in Jakarta EE.
It supports Jakarta Web Services Metadata 3.1 specification, which defines the annotations for web service endpoints and clients in Jakarta EE.
It supports Jakarta XML Binding 3.1 specification, which defines the API for mapping Java objects to XML and vice versa in Jakarta EE.
It supports Jakarta Enterprise Web Services 2.1 specification, which defines the requirements for web services in Jakarta EE.
JAX-WS 4.0.0 Comparison with Previous Versions
JAX-WS 4.0.0 is mostly backward compatible with previous versions, except for some breaking changes that are necessary for the namespace change from Java EE to Jakarta EE.
Some of the main differences between JAX-WS 4.0.0 and previous versions are:
The Maven coordinates have changed from com.sun.xml.ws:jaxws-rt to org.glassfish.metro:jaxws-rt.
The WSDL documents generated by JAX-WS 4.0.0 use the jakarta namespace instead of the javax namespace for the schema elements.
The JAX-WS tools have changed their names from wsgen, wsimport, schemagen, and xjc to jaxws-wsgen, jaxws-wsimport, jaxws-schemagen, and jaxws-xjc.
JAX-WS 4.0.0 Benefits and Drawbacks
JAX-WS 4.0.0 has some benefits and drawbacks that you should consider before using it:
The benefits of JAX-WS 4.0.0 are:
It is up to date with the latest specifications and standards for web services in Jakarta EE.
It is compatible with other Jakarta EE components and technologies, such as CDI, EJB, JPA, and more.
It is supported by various application servers and frameworks, such as GlassFish, Payara, WildFly, Spring Boot, and more.
It is easy to use and provides a high-level abstraction for web service development and consumption.
The drawbacks of JAX-WS 4.0.0 are:
It requires some changes in the code and configuration files if you migrate from previous versions of JAX-WS.
It may not be compatible with some legacy web services or clients that use the old javax namespace or older versions of SOAP or WSDL.
It may not support some advanced features or customizations that are available in other web service frameworks or libraries.
JAX-WS 4.0.0 Alternatives
JAX-WS 4.0.0 is not the only option for creating and consuming SOAP web services in Java. There are other frameworks and libraries that offer similar or different features and capabilities.
Some of the popular alternatives to JAX-WS 4.0.0 are:
Apache CXF: An open source framework that supports both SOAP and RESTful web services, as well as various web service standards and protocols. It also provides integration with Spring, Hibernate, JAX-RS, and more.
Apache Axis2: An open source framework that supports both SOAP and RESTful web services, as well as various web service standards and protocols. It also provides tools for generating and deploying web services and clients.
Spring Web Services: A module of the Spring framework that supports contract-first development of SOAP web services, using XML schemas and WSDL documents. It also provides integration with Spring Boot, Spring Security, Spring Data, and more.
JAX-RPC: A deprecated API for creating and consuming SOAP web services in Java, which was replaced by JAX-WS. It is still supported by some application servers and frameworks, but it is not recommended for new development.
How to Download JAX-WS 4.0.0?
If you want to use JAX-WS 4.0.0 in your project, you need to download the JAX-WS runtime library, which contains the classes and resources required for creating and consuming SOAP web services with JAX-WS.
There are two ways to download JAX-WS 4.0.0:
Downloading from Maven Repository
If you are using Maven as your build tool, you can add the following dependency to your pom.xml file:
<dependency> <groupId>org.glassfish.metro</groupId> <artifactId>jaxws-rt</artifactId> <version>4.0.0</version> </dependency>
This will automatically download the JAX-WS runtime library from the Maven central repository and add it to your project classpath.
Downloading from GitHub
If you are not using Maven, you can download the JAX-WS runtime library from the GitHub repository of the project:
Download the jaxws-rt-4.0.0.jar file from the Assets section.
Add the jar file to your project classpath.
How to Install JAX-WS 4.0.0?
After downloading the JAX-WS runtime library, you need to install it on your system, so that you can use it in your development and deployment environments.
The installation process may vary depending on your operating system and application server, but here are some general steps that you can follow:
Installing on Windows
To install JAX-WS 4.0.0 on Windows, you can do the following:
Create a folder named jaxws-4.0.0 in your preferred location, such as C:\Program Files.
Copy the jaxws-rt-4.0.0.jar file to the jaxws-4.0.0 folder.
Add the jaxws-4.0.0 folder to your system PATH environment variable, so that you can access the JAX-WS tools from any command prompt.
Add the jaxws-rt-4.0.0.jar file to your application server classpath, so that you can deploy and run web services and clients with JAX-WS.
Installing on Linux
To install JAX-WS 4.0.0 on Linux, you can do the following:
Create a folder named jaxws-4.0.0 in your preferred location, such as /opt.
Copy the jaxws-rt-4.0.0.jar file to the jaxws-4.0.0 folder.
Add the jaxws-4.0.0 folder to your sy