Differences between @Autowired and @Resource

In Spring Framework, @Autowired and @Resource are both annotations used for dependency injection, but they have some key differences in terms of usage and behavior.

Injection by Type vs. Name

• @Autowired: Injects by type.
• @Resource: Injects by name (with fallback to type).

Required Behavior

• @Autowired: Required by default.
• @Resource: Not required by default.

Usage Context

• @Autowired: More flexible for various injection points.
• @Resource: Primarily used for field injection.

Package

• @Autowired: Specific to Spring.
• @Resource: Part of the Java EE specification.