Java via constructor

How to get spring application context object reference

package com.java2novice.spring;

import org.springframework.beans.BeansException;

import org.springframework.context.ApplicationContext;

import org.springframework.context.ApplicationContextAware;

public class ApplicationContextProvider implements ApplicationContextAware

{

 private static ApplicationContext context;

 public ApplicationContext getApplicationContext()

{

        return context;

 }

 public void setApplicationContext(ApplicationContext ac)throws BeansException

{

        context = ac;

    }

}

Spring java based configuration Import

package com.java2novice.test;

import org.springframework.context.ApplicationContext;

importorg.springframework.context.annotation.AnnotationConfigApplicationContext;

import com.java2novice.bean.MyBusinessService;

import com.java2novice.bean.MyJdbcService;

import com.java2novice.config.MyAppConfig;

public class SpringDemo

{

public static void main(String a[])

{

 SuppressWarnings("resource")

        ApplicationContext context =

                new AnnotationConfigApplicationContext(MyAppConfig.class);

        MyJdbcService jdbc = (MyJdbcService) context.getBean("jdbcService");

        jdbc.createJdbcConnection();

        MyBusinessService busServ = (MyBusinessService) context.getBean("bussService");

        busServ.runMyBusiness();

    }

}

Spring Dependency Injection via setter method

package com.java2novice.test;

import org.springframework.context.ApplicationContext;

importorg.springframework.context.support.ClassPathXmlApplicationContext;

import com.java2novice.bean.ColorManager;

public class DiSetterDemo

{

public static void main(String a[])

{

        SuppressWarnings("resource")

        ApplicationContext context

          = new ClassPathXmlApplicationContext("applicationContext.xml");

        ColorManager clrManager = (ColorManager)context.getBean("colorManager");

        clrManager.pringColor();

    }

}

Spring Dependency Injection via Constructor

package com.java2novice.test;

import org.springframework.context.ApplicationContext;

importorg.springframework.context.support.ClassPathXmlApplicationContext;

import com.java2novice.bean.ColorManager;

public class DiConstructorDemo

{

 public static void main(String a[])

{

   SuppressWarnings("resource")

   ApplicationContext context = new    ClassPathXmlApplicationContext("applicationContext.xml");

ColorManager clrManager = (ColorManager)context.getBean("colorManager");

        clrManager.pringColor();

    }

}

Constructor overloading issue with spring constructor based injection

package com.java2novice.bean;

public class Article

{

   private String title;

    private int number;

    private String body;

 public Article(String title, int number)

{

        this.title = title;

        this.number = number;

  }

  public Article(String title, String body)

  {

        this.title = title;

        this.body = body;

    }

}