读取properties文件的信息

1、properties配置文件的信息

fcsimage_path=C://FCSImage

2、Java代码

public final class Config {
    private static final Object lock = new Object();
    private static volatile Properties config;

    private Config(){}

    private static Properties getInstance(){
        if (config == null)
        {
            //double lock check
            synchronized (lock) { // declare a private static Object to use for mutex
                if( config == null ){     // have to do this inside the sync
                    config = new Properties();
                }
            }
            try {
                config.load(Config.class.getClassLoader().getResourceAsStream("common.properties"));
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        return config;
    }

    public static String fcsimage_path() {
        return getInstance().getProperty("fcsimage_path");
    }

}