Java Web Start
In the growing market of the software industry today, users are clamoring for client applications that can be run not only from a desktop environment but also from the Internet. Users want the same functionality and support from Web-based applications as they get from those on their desktop, preferably packed with a thin-client interface. The most common solution, currently, is to develop two separate Java applications: one that executes as a desktop application and one that simulates much of the functionality of a desktop application, but is accessed from the Web. This is a burden to developers, who are required to write two separate applications that perform the same on different execution environments, but it is also a financial burden to software companies, which are forced to provide support for two separate applications. To alleviate this problem, Sun Microsystems has introduced Java Web Start, a client-side technology that enables Java applications to launch either from a desktop or from a Web page. This eliminates the need to develop Java support for Web applications, and also provides an efficient means to upgrade, maintain, and manage client-side Java applications with the support of any common Web server.
What is Java Web Start?
Java Web Start is a software technology that encompasses the portability of applets, the maintainability of Servlets and JavaServer Pages (JSP) technology, and the simplicity of markup languages such as XML and HTML. It is a Java-based application that allows full-featured Java 2 client applications to be launched, deployed, and updated from a standard Web server. Upon launching Java Web Start for the first time, the user may download new client applications from the Web; thereafter these applications may be initiated either through a link on a Web page or (in Windows) from desktop icons or the Start menu. Applications initialize quickly under Java Web Start, are cached on the client machine, and can be launched remotely offline. Additionally, because Java Web Start is built from Java 2 technology, it inherits the Java platform’s complete security architecture.
Since Java Web Start is, in itself, a Java application, the software is platform independent and can be supported on any client system that supports the Java 2 platform. Java Web Start performs an update automatically when a client application is launched, downloading the latest code from the Web while simultaneously loading the application from a previous cache (provided that a cache exists). Java Web Start also provides a Java Application Manager utility, allowing end-users to organize their Java applications as well as providing a variety of options, such as clearing the cache of downloaded applications, specifying the use of multiple JREs, and setting HTTP proxies.
Link: Java Web Start
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