IHelloService.java
package kr.or.kosa.msg;
public interface IHelloService {
String sayHello(String name);
}
HelloService.java
package kr.or.kosa.hello;
import org.springframework.stereotype.Service;
@Service
public class HelloService implements IHelloService {
@Override
public String sayHello(String name) {
return "Hello~~~" + name;
}
}
HelloController.java
package kr.or.kosa.hello;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
@Controller
public class HelloController {
@Autowired
IHelloService helloService;
public void hello(String name) {
System.out.println(helloService.sayHello(name));
}
}
applicationContext.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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd">
<bean id="empRepository" class="kr.or.kosa.emp.dao.EmpRepositoryImpl"/>
<bean id="empService" class="kr.or.kosa.emp.service.EmpServiceImpl">
<constructor-arg ref="empRepository"/>
</bean>
<context:component-scan base-package="kr.or.kosa.hello"/>
</beans>
HelloMain.java
package kr.or.kosa.hello;
import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class HelloMain {
public static void main(String[] args) {
AbstractApplicationContext context =
new ClassPathXmlApplicationContext("applicationContext.xml");
HelloController controller = context.getBean("helloController", HelloController.class);
controller.hello("홍길동");
context.close();
}
}
NiceService.java
package kr.or.kosa.hello;
import org.springframework.stereotype.Service;
@Service
public class NiceService implements IHelloService {
@Override
public String sayHello(String name) {
return "Nice~~" + name;
}
}
HelloController.java
package kr.or.kosa.hello;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
@Controller
public class HelloController {
@Autowired
@Qualifier("niceService")
IHelloService helloService;
public void hello(String name) {
System.out.println(helloService.sayHello(name));
}
}
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