Spring in action learns note nine: How to prove that the object is created differently each time the scope is prototype.

There are four values for scope in spring: Singleton, prototype, session, request. The session and request are in the Web application.

The following shows that the objects created each time the scope is prototype are different.

The sample code is as follows:

1  Packagecom.advancedWiring.ambiguityIniAutowiring2;2 3 ImportOrg.springframework.beans.factory.BeanNameAware;4 Importorg.springframework.beans.factory.config.ConfigurableBeanFactory;5 ImportOrg.springframework.context.annotation.Scope;6 Importorg.springframework.stereotype.Component;7 8 /**9 * Created by ${Quinlinson} on 2017/6/9.Ten  */ One @Component A@Scope (Configurablebeanfactory.scope_prototype) -  Public classStudentImplementsbeannameaware{ -     PrivateString name; the     PrivateInteger age; -  -      PublicString GetName () { -         returnname; +     } -  +      Public voidsetName (String name) { A          This. Name =name; at     } -  -      PublicInteger getage () { -         returnAge ; -     } -  in      Public voidsetage (Integer age) { -          This. Age =Age ; to     } +  - @Override the      Public voidsetbeanname (String name) { *System.out.println ("The Student Bean name is:" +name); $     }Panax Notoginseng}

1  Packagecom.advancedWiring.ambiguityIniAutowiring2;2 3 Importorg.springframework.beans.factory.config.ConfigurableBeanFactory;4 ImportOrg.springframework.context.annotation.Bean;5 ImportOrg.springframework.context.annotation.ComponentScan;6 Importorg.springframework.context.annotation.Configuration;7 ImportOrg.springframework.context.annotation.Scope;8 9 /**Ten * Created by ${Quinlinson} on 2017/6/9. One  */ A @Configuration - @ComponentScan -  Public classStudentconfig { the  -}

1  Packagecom.advancedWiring.ambiguityIniAutowiring2;2 3 ImportOrg.springframework.context.annotation.AnnotationConfigApplicationContext;4 ImportOrg.springframework.context.support.ClassPathXmlApplicationContext;5 6 /**7 * Created by ${Quinlinson} on 2017/6/9.8  */9  Public classTest {Ten      Public Static voidMain (string[] args) { One      AAnnotationconfigapplicationcontext AC =NewAnnotationconfigapplicationcontext (Studentconfig.class); -Student Student = Ac.getbean (Student.class); -Student Student2 = Ac.getbean (Student.class); theSystem.out.println (student==student2); -     } -}/**output:
false/

The result of the test class above is false, which shows that each bean created by spring is a completely new object when scope is prototype.

Spring in action learns note nine: How to prove that the object is created differently each time the scope is prototype.