Spring Filter Bean

The auto scan property can be gain through @Component annotation. The same feature you can  get through filter the components in the xml configuration file. In this example you will see how to filter the components in Spring framework.

StudentDAO.java

package com.roseindia.student.dao;

import org.springframework.stereotype.Component;

@Component
public class StudentDAO {
	@Override
	public String toString() {
		return " Inside StudentDAO";
	}
}

StudentService .java

package com.roseindia.student.services;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import com.roseindia.student.dao.StudentDAO;

@Component
public class StudentService {
	@Autowired
	StudentDAO studentDAO;

	@Override
	public String toString() {
		return "StudentService [studentDAO=" + studentDAO + "]";
	}
}

AppMain .java

package com.roseindia.common;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.roseindia.student.services.StudentService;

public class AppMain {
	public static void main(String[] args) {
		ApplicationContext context = new ClassPathXmlApplicationContext(
				new String[] { "context.xml" });
		StudentService stud = (StudentService) context
				.getBean("studentService");
		System.out.println(stud);
	}
}

context.xml

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