Learn Java Web Service

學習Java Web服務和它的規範，例如JAX-WS和JAX-RS

Web Services tutorial is designed for beginners and professionals providing basic and advanced concepts of web services such as protocols, SOAP, RESTful, java web service implementation, JAX-WS and JAX-RS tutorials and examples.

Web service is a technology to communicate one programming language with another. For example, java programming language can interact with PHP and .Net by using web services. In other words, web service provides a way to achieve interoperability.

Java Web Services API

There are two main API's defined by Java for developing web service applications since JavaEE 6.

1) JAX-WS: for SOAP web services. The are two ways to write JAX-WS application code: by RPC style and Document style.

2) JAX-RS: for RESTful web services. There are mainly 2 implementation currently in use for creating JAX-RS application: Jersey and RESTeasy.

How does a web service work?

A web service is used to communicate among various applications by using open standards such as HTML, XML, WSDL, and SOAP. You can build a Java-based web service on Solaris that is accessible from your Visual Basic program that runs on Windows. You can also use C# to build new web services on Windows that can be invoked from your web application that is based on JavaServer Pages (JSP) and runs on Linux.