Java获取项目中的相对路径和绝对路径

        InputStream fis = null;
        try {
            ClassPathResource resource = new ClassPathResource("doc" + File.separator + tempName);
            fis = resource.getInputStream();
           String path = ResourceUtils.getFile("classpath:doc").getAbsolutePath() + File.separator + tempName;
          fis = new FileInputStream(new File(path));
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            IOUtils.closeQuietly(fis);
        }

        //指定 逆向工程配置文件
        String projectPath = ResourceUtils.getFile("classpath:").getAbsolutePath();
        projectPath = projectPath.substring(0, projectPath.indexOf("project-name"));
        projectPath += "project-name" + File.separator + "src" + File.separator + "main" + File.separator + "resources";
        System.out.println("projectPath:" + projectPath);
        String filePath = projectPath + File.separator + "xxxx.xml";
        System.out.println("filePath:" + filePath);
        File configFile = new File(filePath);
        ConfigurationParser cp = new ConfigurationParser(warnings);
        Configuration config = cp.parseConfiguration(configFile);