15使用ResourceLoader

Posted 2022-08-04 大扑棱蛾子

ResourceLoader

接口类如下：

public interface ResourceLoader 
    Resource getResource(String location);

ResourceLoader根据资源的前缀判断是什么类型的资源

• classpath: ClassPathResource
• file:// FileSystemResource
• http:// UrlResource

ResourceLoader使用

package com.codestd.springstudy.resource;

import org.springframework.core.io.DefaultResourceLoader;
import org.springframework.core.io.Resource;
import org.springframework.core.io.ResourceLoader;

public class ResourceLoaderTest 

    public static void main(String[] args) throws Exception
        ResourceLoader loader = new DefaultResourceLoader();
        Resource setup = loader.getResource("classpath:spel/setup.properties");
        System.out.println(setup.getFile());

        Resource txt = loader.getResource("file://F:/temp/resource.txt");
        System.out.println(txt.getFile());

        Resource xsd = loader.getResource("http://www.springframework.org/schema/beans/spring-beans-4.1.xsd");
        System.out.println(xsd.getURI());
        System.out.println(xsd.getInputStream());

        Resource log = loader.getResource("log4j.properties");
        System.out.println(log.getFile());