Size转换工具类

ConvertSizeUtil

public class ConvertSizeUtil {

    public static String convertSizeToString(long size) {
        if(size<0){
            size = 0;
        }
        return size > 1024 ? size / 1024 > 1024 ? size / 1024 / 1024 > 1024 ? size / 1024 / 1024 / 1024 + "GB" : size / 1024 / 1024 + "MB" : size / 1024 + "KB" : size + "B";
    }

}