作用:對(duì)屬性文件的簡(jiǎn)單讀寫(xiě)
在項(xiàng)目中用到了很對(duì)時(shí)間的對(duì)比,但是我又不想把它寫(xiě)死,所以一直在找一種比較簡(jiǎn)潔的使用配置文件來(lái)代替代碼中的參數(shù),好了,上代碼了。
package cn.com.plustv.utils;import java.io.FileInputStream;import java.io.InputStream;import java.util.Properties;import org.apache.log4j.Logger;import cn.com.plustv.InteractionCode;public class PropertiesUtils { private static Properties properties=new Properties(); private static Logger logger = Logger.getLogger(PropertiesUtils.class); //log4j日志輸出的方法 static{ try { InputStream fis = new FileInputStream(System.getProperty("user.dir") +"/conf/env.properties"); //注意屬性配置文件所在的路徑 ,因?yàn)槲业某绦蛞騤ar包,所以我在項(xiàng)目下建立了conf文件夾,此文件夾和src同級(jí),故需要System.getProperty("user.dir")來(lái)進(jìn)行拼接。
//如果你的項(xiàng)目不需要,直接采用properties.load(PropertiesUtils.class.getClassLoader().getResourceAsStream("./properties/env.properties")); 就可以了,而
//properties是包名,就是直接將env.properties放在properties(自己新建)這個(gè)包下。 properties.load(fis); } catch (Exception e) { logger.error(e.getMessage()); //此處是我項(xiàng)目中采用dom4j來(lái)進(jìn)行日志輸出 } } //讀取屬性配置文件中的某個(gè)屬性對(duì)應(yīng)的值 public static String readProperty(String property){ return (String) properties.get(property); } }上面是PropertiesUtils類(lèi),我自己放在一個(gè)工具包中,如下圖所示:
下面是env.properties文件的內(nèi)容,如下圖所示:
因?yàn)樵陧?xiàng)目中我需要的int值,所以需要進(jìn)行以下轉(zhuǎn)換
package cn.com.plustv.utils;public class Test { private static int uploadTime; private static int onlineTime; private static int offlineTime; private static int TimerTime; private static int timeinterval; static { String imageupload1 = "imageupload"; String onlineimage1 = "onlineimage"; String offlineimage1 = "offlineimage"; String timer = "timer"; String timeintervalStr = "timeinterval"; String uploadValue = PropertiesUtils.readProperty(imageupload1); String onlineValue = PropertiesUtils.readProperty(onlineimage1); String offlineValue = PropertiesUtils.readProperty(offlineimage1); String timertimer = PropertiesUtils.readProperty(timer); String timeintervalValue = PropertiesUtils.readProperty(timeintervalStr); uploadTime = Integer.parseInt(uploadValue);//在此時(shí)我進(jìn)行了轉(zhuǎn)換 onlineTime = Integer.parseInt(onlineValue); offlineTime = Integer.parseInt(offlineValue); TimerTime = Integer.parseInt(timertimer); timeinterval = Integer.parseInt(timeintervalValue); } public static void main(String[] args) { System.out.println("imageupload的時(shí)間是"+uploadTime); System.out.println("onlineimage的時(shí)間是"+onlineTime); System.out.println("offlineimage的時(shí)間是"+offlineTime); System.out.println("timer的時(shí)間是"+TimerTime); System.out.println("timeinterval的時(shí)間是"+timeinterval); }}
最后運(yùn)行得到以下結(jié)果:
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