1. Spring Auto wiring www.java9s.com

2. Auto wiring Resolves the beans that need to be injected by inspecting the elements in ApplicationContext. www.java9s.com

3. Auto Wiring - Advantages Reduces the configuration for properties and constructor. Automatically gets updated when the configuration change. www.java9s.com

4. Auto Wiring - TYPES NO - default byName byType constructor www.java9s.com

5. byName public class Student { private Book javaBook; } public class Book { private String title; } www.java9s.com

6. byType public class Car { private Wheel wheel; } public class Wheel { private String name; } www.java9s.com

7. constructor public class College { private Student collegeStudent; public College(Student student){ this.collegeStudent = student; } public class Student { private String studentName; } www.java9s.com

8. Auto Wiring – Disadvantages Missing wiring information. Explicit dependency configuration overrides auto wiring. Cannot resolve the beans if multiple beans of same type are configured. www.java9s.com