ClassPathResource resource = new ClassPathResource("static/one_3.jpg");
// InputStream inputStream = resource.getInputStream();
String uri = "uri = " + resource.getURI().getPath();
String path = "path = " + resource.getPath();
String file = " file = " + resource.getFile().getAbsolutePath();
String url = "url = " + resource.getURL().toString();
logger.info(uri);
logger.info(path);
logger.info(file);
logger.info(url);
url:前缀格式：
file:
http:
https:
ftp:
url = file:/Users/benjamin/opt/tomcat-8.5.37/webapps/access-resources-0.0.1-SNAPSHOT/WEB-INF/classes/static/one_3.jpg
uri: 没有前缀
uri = /Users/benjamin/opt/tomcat-8.5.37/webapps/access-resources-0.0.1-SNAPSHOT/WEB-INF/classes/static/one_3.jpg
