Spring Dependency Injection constructor injection (through constructor injection)

Build Applicationcontext.xml (Spring Management Bean configuration file) in src directory

<?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= "Dog"class= "Com.cc8w.Entity.Dog">        <Constructor-arg>        <value>Wong Choy</value>        </Constructor-arg>        <Constructor-arg>        <value>20</value>        </Constructor-arg>        <Constructor-arg>        <value>Male</value>        </Constructor-arg>    </Bean></Beans>

Data type of 2.java

 Packagecom.cc8w.Entity; Public classDog {PrivateString names; Private intAge ; PrivateString sex;  PublicDog (String names,intAge , String Sex) {        Super();  This. Names =names;  This. Age =Age ;  This. Sex =sex; }     PublicString GetNames () {returnnames; }     Public voidsetnames (String names) { This. Names =names; }     Public intGetage () {returnAge ; }     Public voidSetage (intAge ) {         This. Age =Age ; }     PublicString Getsex () {returnsex; }     Public voidsetsex (String sex) { This. Sex =sex; }    }

3. Test class

 Packagecom.cc8w;ImportOrg.springframework.context.ApplicationContext;ImportOrg.springframework.context.support.ClassPathXmlApplicationContext;ImportCom.cc8w.Entity.Dog; Public classTest01 { Public Static voidMain (string[] args) {//TODO auto-generated Method Stub//ApplicationContext Management BeanApplicationContext context =NewClasspathxmlapplicationcontext ("Applicationcontext.xml"); Dog Dog= (dog) Context.getbean ("Dog"));        System.out.println (Dog.getnames ());        System.out.println (Dog.getage ());    System.out.println (Dog.getsex ()); }}

Results:

Spring Dependency Injection constructor injection (through constructor injection)