The topic of today is the fundamental of web application and the server. The concepts introduced today is the low level basis of the fancy and colorful world of the Internet. Besides the general concepts, the nginx server also introduced.

Today’s topics are the automatic unit test in Spring MVC and the code refactoring in Java. The former is to fully empower the test in Java based project, while the latter is to keep a essential approach about improving the quality of the source code.

Today’s topic is configuration management which is mainly the source code management and version control. One of the famous solution for source code management is the Subversion (abbr. svn), a centralized version control system. It is common in enterprise development with an always-on central configuration management server as an authority (the trunk). Another popular solution is git, a de-centralized version control system. It is common in open source project development and each contributor can hold their own branch.

A website is a user oriented application which will represent a friendly interface to its end user. Nowadays, the browser based webpage is still the most important interface represented to user. Based on the current application with integrated Spring, Spring MVC and Hibernate, some issues related to the front end is the main topic of today’s schedule.

Today’s first topic is the bi-directional communication with WebSocket using Spring Framework. By using the SockJS library as well as support on server side, some other techniques including the XHR polling and XHR streaming are provided as fallbacks. The STOMP is a sub-protocol under the WebSocket protocol, which use Pub/Sub pattern to manage messages. Another topic of today is integration of Hibernate into Spring MVC.

Continued on the introduction to Servlet and Spring MVC library, the main content of the third day is detailed illustration of web site using Spring MVC. Another main point is the Hibernate ORM library which is used to unify and simplify the process of database connection and data transaction.

The main content of the second day is some detail about the Spring Framework, including elaboration of the core concepts in Spring, how to set up the framework, and XML file based configuration as well as annotation based configuration. Apart from the core framework, Spring MVC is also mentioned.

The training content of the first day of this one-month training is some genaral concepts of JavaEE development. It also covers some basic introduction to some broadly used library/framework including Spring Framework, Hibernate ORM, etc. Besides, some trivial of Java programming language are also recapped in today’s content.