What are J2EE Web services?

What are J2EE Web services?

Technical Article. The Java 2 Platform, Enterprise Edition (J2EE) version 1.4 has evolved to integrate web services. For example, J2EE containers provide transaction support, database connections, life cycle management, and other services that are scalable and require no code from application developers.

What are the different types of webservices in Java?

Know what are the types of Java Web Services?

• Soap Web Service.
• Rest Web Service.
• JAX-WS API Example.
• JAX-RS API Example.

Is J2EE a web application?

A J2EE Web application is built to conform to a J2EE specification. You add Web components to a J2EE servlet container in a package called a Web application archive (WAR) file. A WAR file is a JAR (Java archive) file compressed file.

Is Java EE and J2EE same?

The correct short name is “Java EE” When the enterprise Java platform was first introduced, it was called “Java 2 Platform, Enterprise Edition”, with the abbreviation “J2EE”.

What are the J2EE clients types?

Answer: J2EE client types are

• Applets.
• Application clients.
• Java Web Start enabled clients, by Java Web Start technology.
• Wireless clients, based on the Mobile Information Device Profile (MIDP) technology.

Which two types are supported in web services?

There are mainly two types of web services.

• SOAP web services.
• RESTful web services.

What is REST and SOAP services?

SOAP (Simple Object Access Protocol) is a standards-based web services access protocol that has been around for a long time. REST (Representational State Transfer) is another standard, made in response to SOAP’s shortcomings. It seeks to fix the problems with SOAP and provide a simpler method of accessing web services.

Is Java EE a web developer?

In the Java EE platform, web components provide the dynamic extension capabilities for a web server. Web components can be Java servlets, web pages implemented with JavaServer Faces technology, web service endpoints, or JSP pages.

What are the three types of J2EE?

There are three types of enterprise beans: session beans, entity beans, and message-driven beans.

What is the J2EE platform?

The J2EE 1.4 platform also supports JSR 109, that builds upon JAX-RPC and focuses on the programming model for implementing web services, as well as deploying web services in the J2EE 1.4 platform.

What is the Java 2 platform for web services?

The Java 2 Platform, Enterprise Edition version 1.4 is the most complete Web services platform ever. The platform features Web services support through the new JAX-RPC 1.1 API, which provides service endpoints based on servlets and enterprise beans. JAX-RPC 1.1 provides interoperability with Web services based on the WSDL and SOAP protocols.

What are J2EE containers?

For example, J2EE containers provide transaction support, database connections, life cycle management, and other services that are scalable and require no code from application developers. The J2EE 1.4 platform provides comprehensive support for web services through the JAX-RPC 1.1 API, which can be used to develop service endpoints based on SOAP.

Does J2EE support JAX-RPC?

The J2EE 1.4 platform also supports the Web Services for J2EE specification, which defines deployment requirements for Web services and utilizes the JAX-RPC programming model. In addition to numerous Web services APIs, the J2EE 1.4 platform also features support for the WS-I Basic Profile 1.0.