Template framework jsp

While Grails is a web framework written in Groovy programming language, it runs on Java platform and is perfectly compatible with Java syntax. This framework is based on the MVC design pattern. Groovy is similar to Java which some more features added when compared to Java.

It is very easy to learn Groovy if you already know Java. Creating tags for the View in Grails is simple and easy. Here comes the best part — you can integrate your existing java code with Grails. If you have a mix of Groovy and Java code in your application — it will work just fine! The best way to learn Grails is to set up your own development environment using any Java IDE like Eclipse, NetBeans etc… and follow any of these tutorials to build your first web application.

ATG is a web commerce platform written in Java. It is a customizable and configurable framework, particularly useful for websites related to e-commerce. For small scale applications, it could be costly, however. If you are getting into developing e-commerce websites, ATG is a good framework to learn and will enrich your technical as well as domain knowledge. ATG is an extensive framework and you need time and patience to learn it. Play is a slightly conventional and unique type of framework that follows the approach of convention over configuration.

It is based on the MVC pattern and is an open-source web application framework. Apart from Java, you can write Play web applications in Scala. Though Apache Hadoop is not a full-stack framework, it provides a software framework and works on the MapReduce programming model. These utilities can easily handle huge volumes of data Big Data , store, analyse and process them to provide faster and more efficient results.

Hadoop helps in distributed data storage and processing using the master slave design pattern. The MapReduce layer has the JobTracker and the tasktracker. The slave nodes have the Data node and the taskTracker respectively.

If you want to familiarize yourself with big data and data science — Hadoop is your place to start. Learn Hadoop easily through these tutorials. One of the best features of GWT is that it converts Java code into JavaScript code — that too custom code based on the browser. I personally like this feature because, during development, we used to spend a lot of time and effort on the browser testing earlier.

With this open-source set of tools, we can write highly performant web applications in less time. The framework also provides extensive widget libraries that can perform most of the tasks making it easy for even a beginner in Java to develop business logic without worrying too much about basic stuff. Get started with learning GWT here. It is an open-source platform that includes the Java web framework and a set of web components along with application starters and tools.

These web components form the core of Vaadin and can be customized leading to high performance and versatile code for desktop and mobile apps.

Vaadin flow is the actual Java framework part of the Vaadin platform that takes care of the client-server communication as well as routing. The UI components take care of the browser activities of the user using automated communication to and forth browser and server. You can easily integrate Vaadin components into any IDE that you are using plus it is a cross-platform framework, so no need to worry about migrating the code into a different platform.

It is a whole new approach to build Java applications so that you can concentrate on the presentation layer alone without worrying about client-server communications. It is a micro-framework and a domain-specific language for Java focussing on the speed of development. It needs very less configuration and coding. It is 10 times faster than Hadoop in terms of data processing because of in-memory computation. A completely dynamic framework, Spark supports lazy initialization and real-time data processing.

It is also easy to integrate with Scala and R which are programming languages focused on data science and big data. The primary objective of Spark is processing huge data and also supports advanced analytics with SQL queries, machine learning and graph algorithms. A low-code platform for developing web applications in a fast manner, you can get your business applications up and running in record time. It consists of business components that make building even complex applications easy and hassle-free for developers.

Extensible, customizable and OO in true sense, OpenXava uses Java classes as its core to model the business problem. Such a model-driven development approach ensures encapsulation. Developers only define the model as plain annotated Java classes and the necessary functionalities are all generated during run time. The structure and philosophy of OpenXava follow a business component architecture as opposed to the traditional MVC architecture. Here everything is a business concept and all the artifacts contributing to a certain business concept are in the same place be it the associated View, Model or Controller.

You should definitely read the concept behind this language here before you learn this framework. Developed by Eclipse, Vert. It is thus polyglot in nature. It relies upon the asynchronous programming model thus making the applications non-blocking and free from multi-threading.

The best thing about Vert. The framework can be used for any application — small, medium or large-scale. If you already know Node. It is an open-source, cross-platform, component-based web application development framework that can create highly scalable applications. There is almost no XML configuration required, Tapestry rather uses annotations, thus making the code simple and easy to manage.

With Tapestry, application down-time is minimal because any changes even to a Java class can be hot-swapped without requiring a server restart. Tapestry also takes care of URL construction and redirections. Unlike other frameworks, here the framework adapts to the code and not vice versa. Some of the out of the box functionalities of Tapestry are — file upload, pagination, field validations, date and calendar logics, internalization, showing pop-ups etc….

It is easy to integrate Tapestry code with back-end frameworks like Spring, Hibernate, etc It greatly simplifies the development of RESTful services through useful features and utility functions. Jersey provides a sort of abstraction layer so that developers need not worry about the low-level implementation of client-server communication and can concentrate on the main web service functionality.

This is useful when a large data has to be sent and data chunks can be sent while the entire response is prepared. Jersey also comes with easy testing infrastructure. You can write lightweight integration tests that are primarily based on Junit. It is also easy to integrate the tests with Maven environment. All you need to do is add the dependency in your pom. It is a popular Java framework where each component is called a bundle.

Each bundle has an independent lifecycle and is not dependent on other bundles. Consider the bundle to be jar file with OSGi-specific headers. Bundles have to explicitly declare the packages they need access to without which the OSGi platform will not start. Bundles use the JVM-level service registry to discover, publish and bind bundles as services. This is the essence of OSGi — for a modular application architecture promoting adaptability and quick changes without much application down-time run-time flexibility.

OSGi has some good concepts and benefits, yet because of individual independent bundles versioning could be an issue. This could be one major disadvantage of using this framework over others. However, it is worth investing some time in this framework because of the benefits of modularity and isolated class loading that are important concepts for a developer.

Drools is a popular Business Rules Management System. The rules management app is called as the Drools workbench. The project is backed by RedHat and JBoss. With Drools, developers can easily separate the data from business logic. The two main steps in Drools are —.

The most important feature of Drools is that new rules can be removed and added at any time without restarting the server. Drools is apt choice for applications that rely on a lot of conditions for some action to happen. These rules can be defined as a decision table rather than hard coding them in the code. Any changes would then not need another build, complete testing or redeployment! MyBatis can dynamically generate SQL statements separating them from the code. It also offers query caching for easy access.

MyBatis is a good alternative to Hibernate and JDBC when your application is not too complex and you want simple out of the box features like database connectivity, transaction management, loading the database driver, managing and releasing connections and so on done by the framework. MyBatis can also be integrated easily with the Spring framework. Apache Mina is a network application framework with which developers can easily create highly scalable and performant network applications.

The framework can provide high-level and low-level network APIs. It is easy to test the code written with the help of mock objects. It can be integrated with popular frameworks like Spring and PicoContainer making it a popular choice for network applications.

It has a rich networking library to handle concurrent threads. Learn more about Apache Mina from their official page. There are many other java frameworks that are not full-stack or web development frameworks but are useful in every application — like log4j for logging, Junit, and Selenium for testing and so on.

It is essential to know about these though you can just learn them on the go along with the other frameworks that you have seen in the above list. One of the first template engines was PHP , which dates to the early days of the Web. These include Apache Velocity , FreeMarker , Thymeleaf and Pippo which seems to have evolved from an earlier template engine named Pebble.

A web application may consist of a large number of web pages. For example, the nderground social network, built by Topstone Software , has over 35 web pages. Designing and developing these web pages represents a significant portion of the effort that went into building the web application.

Choosing the template engine for web page implementation is a important investment in the software architecture. A core requirement in evaluating a Java template engine was whether it is supported by the Spring framework, which Topstone Software uses to develop web applications.

Three template engines, which are supported by Spring, have been evaluated. In addition to supporting Spring, the template library needs to support the ability to include insert HTML fragements into the main page.

This feature allows common CSS and JavaScript includes in the page header and common page headings and footers to be included in the application pages. The best way to evaluate a template engine or any software development framework is to use it in a real application.

Each of the template engines was used in a version of the Cognito Demonstration application. The Cognito demonstration application was developed to explore the AWS Cognito authentication service. The application includes ten web pages, where almost every page includes dynamic server side data. The example below shows how conditional logic can be added for server side page generation. When a page is sent to the client, it will consists of static HTML, which has been dynamically generated on the server.

Thymeleaf is currently popular in the Spring community. Many articles on Spring use Thymeleaf in the example web pages. An example showing Thymeleaf markup is shown below. Thymeleaf supports th:replace and th:include tags which allow sections of HTML to be inserted into the page.

The example below shows how the th:replace tag can be used to insert the CSS and JavaScript links into the page head. The th:replace tag is also used to add a page header so that pages have common title headings.

When Thymeleaf encounters an error while processing Thymeleaf markup, it throws a Java exception. This exception does not contain any information i. This can make finding and correcting a Thymeleaf markup error time consuming, slowing application development.

Although Thymeleaf is popular in the Spring community and Thymeleaf is currently supported by the Spring Tool Suite project builder, I noticed that Thymeleaf is not supported by Pivotal the company that supports the Spring framework.

Thymeleaf is supported by three GitHub committers and most of the GitHub commits are from two people. If these GitHub committers are not able or willing to support Thymeleaf, the project could become an orphan. FreeMarker is supported by an Apache Software Foundation and has a huge user community, including page templates for several content management systems see Who Uses FreeMarker. FreeMarker also has support for the Spring framework.

An example is shown below. Note that the expressions within the conditionals do not have to be quoted. FreeMarker is not without its quirks. I spent hours of frustrating experimentation before I could get images to load on the FreeMarker pages see the Java configuration class cognitodemo.

Free marker also has a syntax that can take getting used to. However, this FreeMaker markup will result in a FreeMarker parsing error. FreeMarker requires you to use the FreeMarker operators for comparison to null and for string length. The correct FreeMarker markup is shown below:. Velocity has a large community and many features. From to there were no major Velocity releases and some people, including the Spring development team, concluded that the Velocity project was in hibernation.

In a Jira issue posting the Spring development group states that Velocity will not be a supported part of Spring, but that the Apache Velocity group is welcome to support Spring adapters for Velocity. In Apache Velocity released version 2. So the Velocity project seems to be active.