Spring Learning--injecting static object properties

When spring injects static object properties, it is not possible to use @Autowired directly on the property because of the virtual machine class loading problem . You need to @autowired on the set method that corresponds to the property, and the set method cannot be defined as static.

1. Create a class for static object properties

 Package Com.bluej.springj.service.impl; Import Org.springframework.stereotype.Service; Import Com.bluej.springj.service.LogService; @Service ("Logservice")  Public class Implements Logservice {    publicvoid  Dolog () {        System.out.println (" Logserviceimpl.dolog ");}    }

Logservice Class Code

2. Creating objects that Spring uses

1  PackageCom.bluej.springj.service.impl;2 3 Importorg.springframework.beans.factory.annotation.Autowired;4 ImportOrg.springframework.stereotype.Service;5 6 ImportCom.bluej.springj.service.CheckService;7 ImportCom.bluej.springj.service.LogService;8 9@Service ("Checkservice")Ten  Public classCheckserviceimplImplementsCheckservice { One      A     Private StaticLogservice Logservice; -  -      Public BooleanDocheck (Object obj) { theSystem.out.println ("Checkserviceimpl.docheck"); - Logservice.dolog (); -         return false; -     } +  - @Autowired +      Public  voidSetlogservice (Logservice logservice) { ACheckserviceimpl.logservice =Logservice; at     } -}

Checkserviceimpl class

3. Invoking the sample

1  PackageCom.bluej.springj.start;2 3 ImportOrg.springframework.context.ApplicationContext;4 ImportOrg.springframework.context.support.ClassPathXmlApplicationContext;5 6 ImportCom.bluej.springj.service.CheckService;7 8  Public classMain {9      Public Static voidMain (string[] args) {TenApplicationContext ApplicationContext =NewClasspathxmlapplicationcontext ("Applicationcontext.xml"); OneCheckservice Checkservice = Applicationcontext.getbean ("Checkservice", Checkservice.class); ACheckservice.docheck (NewObject ()); -     } -}

Main class

4. Code Address

Git address: https://git.oschina.net/blue_phantom/ssmj.git

Project Name: SPRINGJ

Pack Location: Package Com.bluej.springj.start

Execution Test class: Main.java

Spring Learning--injecting static object properties