Spring Resource

package com.imooc.resource;

import java.io.IOException;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.core.io.Resource;


public class MoocResource implements ApplicationContextAware  {

    private ApplicationContext applicationContext;

    @Override
    public void setApplicationContext(ApplicationContext applicationContext)
            throws BeansException {
        this.applicationContext = applicationContext;
    }

    public void resource() throws IOException {
        Resource resource = applicationContext.getResource("config.txt");
        //这里的config.txt前面没前缀，默认和ApplicationContext使用的前缀一样<param-value>classpath:applicationContext.xml</param-value>
例如这里config.txt实际是classpath：config.txt
config.txt这里的位置可以为url：、classpath、file：
url：可以为网页


        System.out.println(resource.getFilename());
        System.out.println(resource.contentLength());
    }

}