ConfigUtil读取配置文件

package utils;

import java.util.ResourceBundle;

public class ConfigUtil {
    private static ResourceBundle bundle = ResourceBundle.getBundle("config");//读取config.properties
    private static ConfigUtil configUtil = null; //懒汉模式创建单例

    private ConfigUtil(){} //防止初始化

    public static ConfigUtil getInstance(){//  获取单例对象
        if(configUtil==null){
            synchronized (bundle) {
                if(configUtil==null){
                    configUtil = new ConfigUtil();
                }
            }
        }
        return configUtil;
    }

    /***
     * 获取config.properties中的memcacheIp
     * @return
     */
    public String getMemCachedIp(){
        return bundle.getString("memcacheIp");
    }

    public static void main(String[] args) {
        System.out.println(ConfigUtil.getInstance().getMemCachedIp());
    }

}