Spring - Learn Multiple Ways to use PackageScan Annotation

Introduction

In this post, we will see multiple ways to use @PackageScan annotation.

Multiple Ways of Using @PackageScan

• Provide Single package

@ComponentScan("com.mypackage1")

• Provide Multiple Packages by String[] array

@ComponentScan({"com.mypackage1", "com.mypackage2"})

• By Specifying Classes

@ComponentScan(basePackageClasses = {MyClass1.class, MyClass2.class})

This way is type-safe.

• By Using basePackages attribute

@ComponentScan(basePackages={"com.mypackage1", "com.mypackage2"})

• Nested Usage of ComponentScan

@ComponentScans(value = { 
    @ComponentScan("com.mypackage1"),
    @ComponentScan("com.mypackage2") 
})

See another post, where we write on Fixing Autowire Bean Not Found