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Key Concern for Web Design

Development best practices, you might find it useful to keep them in mind while designing your web application 
  • There is no one-size-fits-all design
  • Try to keep application as light weight as possible.
  • Use Maven/Gradle to manage dependencies
    • Don't rely excessively on IDE. Make sure your project builds without IDE (If you are using maven/gradle, It will :) Try to open you project with IDEA, Netbeans and Eclipse.
  • For the technologies mentioned above, appfuse makes a good starting point.
  • Design your database/entities first
  • Use libraries sensibly and judiciously. Do NOT overuse them.
  • Dont forget to write JUnit/TestNG (at least for service layer)
  • Test application on all major browsers (not just your favorite one :)
  • Determine how many total users and how many concurrent users your web app will have.
    • Then decide whether you need caching or not.
    • you will use app server clustering or not.
  • Select the application server based on its capabilities and more importantly 'your needs'
    • Tomcat / Jetty are absolutely fine for most of the cases
  • Avoid using any app-server specific api
  • Use JPA interfaces/annotations even if using hibernate as JPA implementation
  • Be extra cautious while mapping relationships in entities. Decide which properties and relationships will load lazily and which will load eagerly
  • Keep application security in mind while designing the app. Spring security is excellent choice.
  • Never abuse HttpSession. Dont store too much in it.
  • Keep entities Serializable. Enforce developers to use toString(), hashCode() and equals()
  • Dont Forget to use version controlling from Day 1
  • Dont just assume that spring/hibernate/spring-mvc will be best choice for you. create small proof of concepts with atleast 3 to 4 options.
  • Try to automate integration/build/deploy with CI tools like Jenkins
  • Check and Tune SQL generated by Hibernate (time to time)
  • Do not let business logic creep into view layer. Hate jsp scriptlets? Consider Velocity/Freemarker. JSP is not the only option.
  • externalize the environment specific configuration by using Spring's PropertyPlaceholderConfigurator.
  • If possible, try to integrate with existing User Authentication mechanism (Like LDAP/ OpenID) rather than writing your own. This will save you from reinventing the wheel and your users from remembering yet another set of username and password.