Spring Framework Tutorial

Learn maven

Pom.xml <packaging><artifactId>

<dependencies>
Compile package Install

Spring Dependency Injection Usage examples

<artifactId>spring-context</artifactId>

1  Package Hello; 2 3  Public Interface Messageservice {4    String getMessage (); 5 }

1  PackageHello;2 3 Importorg.springframework.beans.factory.annotation.Autowired;4 Importorg.springframework.stereotype.Component;5 6 @Component7  Public classMessageprinter {8 9     Final PrivateMessageservice Service;Ten  One @Autowired A      PublicMessageprinter (Messageservice service) { -          This. Service =Service; -     } the  -      Public voidPrintmessage () { -System.out.println ( This. Service.getmessage ()); -     } +}

1  PackageHello;2 3 ImportOrg.springframework.context.ApplicationContext;4 Importorg.springframework.context.annotation.*;5 6 @Configuration7 @ComponentScan8  Public classApplication {9 Ten @Bean One Messageservice Mockmessageservice () { A         return NewMessageservice () { -              PublicString getMessage () { -               return"Hello world!"; the             } -         }; -     } -  +    Public Static voidMain (string[] args) { -ApplicationContext context = +           NewAnnotationconfigapplicationcontext (Application.class); AMessageprinter printer = Context.getbean (messageprinter.class); at printer.printmessage (); -   } -}

Spring Framework Tutorial