Spring Framework Introduction ksvali（Spring框架介绍ksvali）.pdfVIP

Spring Framework Introduction Khader Shaik Agenda • Background • J2EE Vs Spring • Framework Mission • Modules • Application Development Process • Sample Application 2 Spring Framework • Spring is a Java Enterprise Application Framework – Lightweight Application Framework – Support all layers including web layer – Provides all foundation components required to build the enterprise application – Open source framework • Spring 1.0 was released in 2004 • Initially developed by Rod Johnson as part of the book “J2EE Design Application” in 2002/2003 • Spring.Net in pipeline for .Net platform • 3 Spring Framework • Spring is not a J2EE Application Server • Spring works in simple Java environment • Spring can be integrated with any Application Server • Spring simplifies J2EE development • Supports POJO model – POJO – Plain Old Java Objects 4 Other Frameworks - Struts • There are many Java application Frameworks like Struts etc • Struts designed for Web Layer • Other Frameworks also addressed specific layer • But Spring Framework provides solution to support all layers of application 5 J2EE Vs Spring • J2EE – Enterprise Architecture with large scope – Heavyweight Architecture – Run in J2EE Container - dependent – Complex to implement and test – Many J2EE APIs are not modular (tightly integrated) – Difficult to develop simple and small applications