@Component
public class AppService {
    @Value("classpath:/logo.txt")// logo idea创建就正常 、、abc 桌面创建就 not exist
    private Resource resource;

    private String abc;

    @PostConstruct
    public void init() throws IOException {
        try(BufferedReader reader = new BufferedReader(new InputStreamReader(resource.getInputStream(),"UTF-8"))){
            this.abc = reader.lines().collect(Collectors.joining());
            System.out.println("abc = "+abc);
        }
    }
}