Properties工具类

/**
     * 加载Properties文件
     * @param path Properties文件路径
     * @return
     */
    private static Properties getClasspathProperties(String path) {
        Assert.notNull(path);
        InputStream in = null;
        try {
            File file = new File(SysUtils.class.getResource("/").getPath() + path);
            in = new FileInputStream(file);
            
            Properties properties = new Properties();
            properties.load(in);
            
            return properties;
        } catch (IOException e) {
            throw new SysException("无法读取资源文件：[{}]，错误信息：{}", path, e.getMessage());
        } finally {
            if (null != in) {
                try {
                    in.close();
                } catch (IOException e) {
                    throw new SysException("无法读取资源文件：[{}]，错误信息：{}", path, e.getMessage());
                }
            }
        }
    }
    /**
     * 获取Properties中key对应的value值
     * @param properties Properties
     * @param key 键
     * @param defaultValue 默认值
     * @return
     */
    private static String getProperty(Properties properties, String key, String defaultValue) {
        Assert.notNull(properties);
        Assert.hasLength(key);
        String value = null;
        if (properties.containsKey(key)) {
            value = properties.getProperty(key);
        } else {
            LOG.info("未发现配置：" + key);
        }
        
        if (StringUtils.isBlank(value)) {
            value = defaultValue;
        }
        LOG.debug("获取到值为{}",value);
        return value;
    }