idea获取resources资源⽬录下⽂件以下格式都是正确的(注意：.properties⽂件中的第⼀⾏不要有空格！)：
URL resource01 = Resource("");
URL resource02 = Resource("/conf.properties");//success: resources下的
InputStream ip3 = ClassLoader().getResourceAsStream("conf.properties");//success: resources下的
InputStream resource32 = Thread.currentThread().getContextClassLoader().getResourceAsStream("conf.properties");
InputStream ips =  ResourceAsStream("/conf.properties");//success: resources下的
URL resource13 = Thread.currentThread().getContextClassLoader().getResource("conf.properties");
InputStream resource43 = Thread.currentThread().getContextClassLoader().getResourceAsStream("conf.properties");
InputStream resource23 = Thread.currentThread().getContextClassLoader().getResourceAsStream("conf.properties");
SpringBoot读取resources⽬录下的⽂件
1. 传统java读取⽅式
File file = new File("src/main/resources/static/");
InputStream inputStream=new FileInputStream(file);
2. ResourceUtils⼯具类
spring怎么读取properties
File file = File("classpath:static/");
InputStream inputStream=new FileInputStream(file);
3. ClassPathResource类
ClassPathResource classPathResource = new ClassPathResource("static/");
InputStream inputStream = InputStream();

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