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Develop Java MVC web apps using MyBatis, Servlets and JSP

Requirements

  • Primary information of Java programming language is sweet sufficient
  • Primary information of HTML will assist, however not obligatory

Description

Servlets and JSP

A Java servlet is a Java software program part that extends the capabilities of a server. Though servlets can reply to many forms of requests, they mostly implement web containers for internet hosting web purposes on web servers and thus qualify as a server-side servlet web API. Such web servlets are the Java counterpart to different dynamic web content material applied sciences comparable to PHP and ASP.NET.

A Java servlet processes or shops a Java class in Java EE that conforms to the Java Servlet API, a typical for implementing Java lessons that reply to requests. Servlets may in precept talk over any consumer–server protocol, however they’re most frequently used with HTTP. Thus “servlet” is commonly used as shorthand for “HTTP servlet”. Thus, a software program developer could use a servlet so as to add dynamic content material to a web server using the Java platform. The generated content material is usually HTML, however could also be different information comparable to XML and extra generally, JSON. Servlets can keep state in session variables throughout many server transactions by using HTTP cookies, or URL mapping.

To deploy and run a servlet, a web container have to be used. A web container (also called a servlet container) is actually the part of a web server that interacts with the servlets. The web container is liable for managing the lifecycle of servlets, mapping a URL to a selected servlet and guaranteeing that the URL requester has the right entry rights.

The Servlet API, contained within the Java package deal hierarchy javax.servlet, defines the anticipated interactions of the web container and a servlet.

Servlets might be generated routinely from JavaServer Pages (JSP) by the JavaServer Pages compiler. The distinction between servlets and JSP is that servlets usually embed HTML inside Java code, whereas JSPs embed Java code in HTML. Whereas the direct utilization of servlets to generate HTML has turn out to be uncommon, the upper stage MVC web framework in Java EE (JSF) nonetheless explicitly makes use of the servlet expertise for the low stage request/response dealing with by way of the FacesServlet. A considerably older utilization is to make use of servlets along side JSPs in a sample referred to as “Mannequin 2”, which is a taste of the mannequin–view–controller.

MyBatis is a Java persistence framework that {couples} objects with saved procedures or SQL statements using an XML descriptor or annotations.

Apache MyBatis

MyBatis is free software program that’s distributed underneath the Apache License 2.0.

MyBatis is a fork of iBATIS 3.0 and is maintained by a group that features the unique creators of iBATIS.

In contrast to ORM frameworks, MyBatis doesn’t map Java objects to database tables however Java strategies to SQL statements.

MyBatis enables you to use all of your database performance like saved procedures, views, queries of any complexity and vendor proprietary options. It’s typically a good selection for legacy or de-normalized databases or to acquire full management of SQL execution.

It simplifies coding in comparison with JDBC. SQL statements are executed with a single line.

MyBatis offers a mapping engine that maps SQL outcomes to object bushes in a declarative manner.

Who this course is for:

  • Core Java builders who wish to find out about superior ideas in Java
  • Web builders with Java information who wish to construct highly effective dynamic/interactive web purposes
  • Builders from different programming background who wish to discover MVC in Java

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