What is Java Web

Java Web is the sum of technologies that use Java technology to solve related web and Internet fields, and web includes two parts: web server and web client; although Java's Web frameworks are different, they basically follow specific The number of roads.

Java Web is the sum of technologies that use Java technology to solve related web and Internet fields. The web consists of two parts: web server and web client. Java applications on the client include Java applet, but rarely used, Java has a lot of applications on the server side, such as Servlet, JSP and third-party frameworks, etc. The development of Java technology in the Web field Injected strong motivation.

Recommended course: Java Tutorial.

Although Java's Web frameworks are different, they basically follow a specific approach: use Servlet or Filter to intercept requests, and use MVC ideas to design the architecture. Use approx. Define, XML or Annotation to implement configuration, use the object-oriented characteristics of Java, implement the object-oriented process of request and response, and support Jsp, Freemarker, Velocity and other views.

JSP advantages:

Java EE standard, which means there is great market demand and more job opportunities

Get started quickly and relatively Easy

There are a large number of available component libraries

JSP Disadvantages:

A large number of JSP tags

No support for REST and security Well

There is no unified implementation. There are both SUN implementations and Apache implementations - MyFaces.

Advantages of Spring MVC:

Provides life cycle management for Spring MVC overriding binding, validation, etc.

And many Seamless integration of presentation layer technologies/frameworks: JSP/JSTL, Tiles, Velocity, FreeMarker, Excel, :

Lots of XML configuration files

Too flexible - no public parent controller

No built-in Ajax support

Stripes Advantages:

No need to write XML configuration files

Good learning documentation

Community members are very enthusiastic

Stripes Disadvantages:

The community is relatively small

Not as active as other projects

The URL in ActionBean is hard-coded

Struts 2 Advantages:

Simple architecture - easy to extend

The tag library is easy to use FreeMarker or Velocity to customize

based on controllers or

Page-based navigation

Struts 2 Disadvantages:

Poorly organized documentation

Excessive focus on new features

Tapestry Advantages:

Once you learn it, you will greatly improve your productivity

HTML template - very beneficial to page designers

Every time a new version is released, There will be a lot of innovation

Tapestry Disadvantages:

The document is too conceptual and not practical enough

The learning curve is steep

Release cycle Long - there are major upgrades every year

Wicket advantages:

Good for Java developers (not Web developers)

Page and Show binding is tight

Active community - with support from the creator

Wicket Cons:

HTML templates and Java code are right next to each other

Need to have a good understanding of OO

Wicket logic - everything is done in Java

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