예제 4-47 ApplicationContext로 리소스에 접근([[resource]] ResourceDemo.java)

package com.apress.prospring5.ch4;

import java.io.File;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.core.io.Resource;

public class ResourceDemo {
    public static void main(String... args) throws Exception{
        ApplicationContext ctx = new ClassPathXmlApplicationContext();

        File file = File.createTempFile("test", "txt");
        file.deleteOnExit();

        Resource res1 = ctx.getResource("file://" + file.getPath());
        displayInfo(res1);

        Resource res2 = ctx.getResource("classpath:test.txt");
        displayInfo(res2);

        Resource res3 = ctx.getResource("http://www.google.com");
        displayInfo(res3);
    }

    private static void displayInfo(Resource res) throws Exception{
        System.out.println(res.getClass());
        System.out.println(res.getURL().getContent());
        System.out.println("");
    }
}