[Spring] Ioc-study

Spring IOC Simple Injection example, this example uses JUnit for testing. Spring Version: 3.2

Project structure:

The jar package that spring needs to reference:

Spring XML configuration:

Springcontext.xml

<?XML version= "1.0" encoding= "UTF-8"?><Beansxmlns= "Http://www.springframework.org/schema/beans"Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"xsi:schemalocation= "Http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd" >    <ImportResource= "Dao.xml"/>    <ImportResource= "Service.xml"/></Beans>

Dao.xml

<?XML version= "1.0" encoding= "UTF-8"?><Beansxmlns= "Http://www.springframework.org/schema/beans"Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"xsi:schemalocation= "Http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd" >    <Beanname= "Accountdaofactory"class= "Com.my.dao.AccountFactory"Abstract= "true"></Bean>    <Beanname= "Accountdao"class= "Com.my.dao.mysql.AccountDAO"Parent= "Accountdaofactory"></Bean></Beans>

Service.xml

<?XML version= "1.0" encoding= "UTF-8"?><Beansxmlns= "Http://www.springframework.org/schema/beans"Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"xsi:schemalocation= "Http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd" >    <Beanname= "Accountservicefactory"class= "Com.my.service.AccountServiceFactory"Abstract= "true"></Bean>    <Beanname= "Accountservice"class= "Com.my.service.mysql.AccountService"Parent= "Accountservicefactory">        < Propertyname= "Account"ref= "Accountdao"></ Property>    </Bean></Beans>

DAO's Java class:

 package   Com.my.dao;  public  abstract  class   Accountfactory {  * Fin account by ID  */ public abstract   integer findaccount (integer AccountID);}  

 Package Com.my.dao.mysql;  Public class extends com.my.dao.AccountFactory {    /     * *     Findaccount by Account ID* /     @Override    public  integer findaccount (integer accountID) {          return  AccountID;}    }

Java Class for service:

 PackageCom.my.service; Public Abstract classAccountservicefactory {protectedcom.my.dao.AccountFactory account;  Publiccom.my.dao.AccountFactory Getaccount () {returnAccount ; }     Public voidSetaccount (com.my.dao.AccountFactory account) { This. Account =Account ; }        /** Find account by ID*/     Public Abstractinteger finaccount (integer AccountID);}

 Package Com.my.service.mysql;  Public class extends com.my.service.AccountServiceFactory {    @Override    public  integer finaccount (integer AccountID) {        return  account.findaccount (AccountID);    }}

Test class:

 Packagecom.my.test;ImportOrg.springframework.context.ApplicationContext;ImportOrg.springframework.context.support.ClassPathXmlApplicationContext;Importcom.my.service.AccountServiceFactory; Public classSpringtest {PrivateApplicationContext context =NewClasspathxmlapplicationcontext ("Springcontext.xml");  Publicspringtest () {} Publicinteger findaccount (integer accountID) {accountservicefactory account= (accountservicefactory) context.getbean ("Accountservice"); Integer ID= Account.finaccount (100); returnID; }}

JUnit Test:

 Packagecom.my.test;Import Staticorg.junit.assert.*;ImportOrg.junit.Before;Importorg.junit.Test; Public classSpringtesttest {PrivateSpringtest SP =Newspringtest (); @Before Public voidSetUp ()throwsException {} @Test Public voidTestfindaccount () {Integer AccountID= 100; Integer result=Sp.findaccount (AccountID); Assertequals ((Integer)100, result);    SYSTEM.OUT.PRINTLN (result); }}

Run JUnit test results:

[Spring] Ioc-study