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Open DO File

File type: Java Servlet File

 

What is

The DO file extension references a Java Servlet which is essentially a Web-based Java application executed by a Web server like the IBM WebSphere.

This file is usually mapped to the Struts controller and is utilized for the generation of dynamic Web contents.

Essentially, a servlet is considered as a development language class of Java implemented for extending the functionalities of servers hosting programs accessible through a request-response infrastructure model.

This API supported by .do files provides the programmer with the ability of creating dynamic Web pages on a server running on the Java platform.

Normally, the dynamic contents are based on the HTML scripting language but can also be generated using other development models like the XML.

Servlets are widely considered as the counterparts of the dynamic contents generated by the ASP.NET, CGI, and PHP technologies.

The functionality of the DO file extension supports the maintenance of state across various server transactions via HTTP cookies, URL rewriting, or session variables.

 

Open DO File

Category: Web Files
File format: Open-Source
Open with Windows: Requires a Web server that supports JSP to run, may be viewed in a Web browser
Open with Linux: JSP-supported Web browser, may be viewed in a Web browser
The Java package containing the servlet API identifies the anticipated interactions that can occur between the servlet and the Web container.
Basically, the Web container is a component of the Web server responsible for the management of the lifecycle attributed to the servlets.
It also maps a URL to a specific servlet and makes sure that that URL requester has the appropriate access privileges to communicate with its target.
Servlets supported by the DO file extension can be automatically generated by the JSP (JavaServer Pages) compiler or alternatively by template engines like the WebMacro.
Servlets executed in combination with the JSP are normally referred to as Model 2 patterns which are considered as a variant of the model-view-controller outline.
The lifecycle of this format in relation to the servlet consists mainly of its loading at startup by the container using the init() method.
Upon completion of the initialization, it begins servicing client requests using the service() method. The destroy() method is executed in the final stage to terminate the servlet service.
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