如果是MAVEN项目，一般将配置文件放在WEB-INF所在的模块中，便于发布后的修改。

public class OSSFileUtil {    public static final String OSSRESPATH = "utilsProps/OSSRes.properties";    public static String accessKeyId ;    public static String accessKeySecret ;    public static String endpoint ;    public static String CONTRACT_BUCKET ; //合同存储的bucket    public static OSSClient client;    public static final Properties prop = new Properties();    static{        try {            String path = OSSFileUtil.class.getClassLoader().getResource("").toURI().getPath();            log.info("OSSRes.properties path:"+path + OSSRESPATH);            FileInputStream fis = new FileInputStream(new File(path + OSSRESPATH));            prop.load(fis);            accessKeyId = prop.getProperty("accessKeyId").trim();            accessKeySecret = prop.getProperty("accessKeySecret").trim();            endpoint = prop.getProperty("endpoint").trim();            CONTRACT_BUCKET = prop.getProperty("CONTRACT_BUCKET").trim();            client = new OSSClient(endpoint, accessKeyId, accessKeySecret);        } catch (Exception e) {            log.error("OSS文件工具类初始化失败!");            e.printStackTrace();        }    }