Java Dependency Injection method

Construct Method Injection

Application.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" >    <BeanID= "Orange"class= "Com.wzh.fruit.impl.Orange"></Bean>    <BeanID= "Apple"class= "Com.wzh.fruit.impl.Apple"></Bean>        <BeanID= "Personapple"class= "Com.wzh.person.Person">        <Constructor-argref= "Apple"></Constructor-arg>    </Bean>        <BeanID= "Personorange"class= "Com.wzh.person.Person">        <Constructor-argref= "Orange"></Constructor-arg>    </Bean></Beans>

Fruit.java

 Package Com.wzh.fruit;  Public Interface Fruit {    public  String getfruit ();}

Apple.java

 Package Com.wzh.fruit.impl; Import Com.wzh.fruit.Fruit;  Public class Implements fruit{        public  Apple () {            }    public  String getfruit () {         = "Apple";         return Apple;    }}

Orange.java

 Package Com.wzh.fruit.impl; Import Com.wzh.fruit.Fruit;  Public class Implements fruit{        public  Orange () {            }    public  String getfruit () {         = "Orange";         return orange;    }}

Person.java

 Package Com.wzh.person; Import Java.lang.reflect.Constructor; Import Com.wzh.fruit.Fruit;  Public class Person {        private  Fruit Fruit;          Public Person (Fruit _fruit) {        = _fruit;    }          Public void eat () {        System.out.println("I want Eat" +Fruit.getfruit ());}    }

Run.java

 PackageCom.wzh.run;ImportCom.wzh.person.Person;ImportOrg.springframework.context.ApplicationContext;ImportOrg.springframework.context.support.ClassPathXmlApplicationContext; Public classRun { Public Static voidMain (string[] args) {ApplicationContext ac=NewClasspathxmlapplicationcontext ("Application.xml"); Person P= (person) ac.getbean ("Personorange");    P.eat (); }    }

Java Dependency Injection method