@autowired of Spring annotation-based configuration

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@Autowired notes

@Autowired annotations provide more granular control over where and how automatic connections are completed.

The @autowired in Setter method

Spellchecker.java:

 Package com.lee.autowired;  Public class spellchecker {    public  spellchecker () {        System.out.println ("Inside spellchecker Constructor ");    }          Public void checkspelling () {        System.out.println ("Inside checkspelling");}    }

Texteditor.java:

 Packagecom.lee.autowired;Importorg.springframework.beans.factory.annotation.Autowired; Public classTextEditor {Privatespellchecker spellchecker;  Publicspellchecker Getspellchecker () {returnspellchecker; } @Autowired Public voidSetspellchecker (spellchecker spellchecker) { This. Spellchecker =spellchecker; }     Public voidspellcheck () {spellchecker.checkspelling (); }}

Mainapp.java:

 Packagecom.lee.autowired;ImportOrg.springframework.context.ApplicationContext;ImportOrg.springframework.context.support.ClassPathXmlApplicationContext; Public classMainapp { Public Static voidMain (string[] args) {ApplicationContext context=NewClasspathxmlapplicationcontext ("Beans2.xml"); TextEditor TD= (TextEditor) context.getbean ("TextEditor");    Td.spellcheck (); }}

Beans2.xml:

<?xml version= "1.0" encoding= "UTF-8"? ><beans xmlns= "Http://www.springframework.org/schema/beans"Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"Xmlns:context= "Http://www.springframework.org/schema/context"xsi:schemalocation= "Http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsdhttp//Www.springframework.org/schema/contexthttp//www.springframework.org/schema/context/spring-context-3.0.xsd "><context:annotation-config/> <bean id= "TextEditor"class= "Com.lee.autowired.TextEditor" ></bean> <bean id= "spell"class= "Com.lee.autowired.SpellChecker" ></bean></beans>

The @autowired property in the

Only TextEditor are different:

 PackageCom.lee.autowired2;Importorg.springframework.beans.factory.annotation.Autowired; Public classTextEditor {@AutowiredPrivatespellchecker spellchecker;  PublicTextEditor () {System.out.println ("Inside TextEditor Constructor"); }     Publicspellchecker Getspellchecker () {returnspellchecker; }     Public voidspellcheck () {spellchecker.checkspelling (); }}

The @autowired property in the constructor

 PackageCom.lee.autowired2;Importorg.springframework.beans.factory.annotation.Autowired; Public classTextEditor {Privatespellchecker spellchecker; @Autowired PublicTextEditor (spellchecker spellchecker) { This. spellchecker=spellchecker; System.out.println ("Inside TextEditor Constructor"); }     Public voidspellcheck () {spellchecker.checkspelling (); }}

@autowired of Spring annotation-based configuration