java代码实现C盘文件统计工具
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2022-07-04 12:48:14
概述工作电脑用了3年多了,100g的c盘也快吃不消了,每次打开看到c盘红了,总要用清理工具清理一下子.不知道怎么最近清理工具清理了也没有什么效果,把temp下面的文件删除,没什么大作用.总是有一种冲动...
概述
工作电脑用了3年多了,100g的c盘也快吃不消了,每次打开看到c盘红了,总要用清理工具清理一下子.
不知道怎么最近清理工具清理了也没有什么效果,把temp下面的文件删除,没什么大作用.
总是有一种冲动要去处理掉,已经影响工作了.乘着星期天写个工具,分析一下c盘的文件,看看那些是最近才增加的,能不能手动删除掉.
版本介绍
- maven-3.3.9
- jdk1.8 目录结构
com └─sedaier └─calcdir ├─service │ │ idirsizecalc.java │ │ │ └─impl │ dirsizecalcbyforkjoinpoolimpl.java │ ├─test │ test.java │ └─tool outputfileutils.java //日志输出工具类
源码
dirsizecalcbyforkjoinpoolimpl.java
package com.sedaier.calcdir.service.impl; import java.io.file; import java.util.arraylist; import java.util.list; import java.util.concurrent.forkjoinpool; import java.util.concurrent.forkjointask; import java.util.concurrent.recursivetask; import com.sedaier.calcdir.service.idirsizecalc; import com.sedaier.calcdir.tool.outputfileutils; public class dirsizecalcbyforkjoinpoolimpl implements idirsizecalc { @override public long getsize(final file file, final file log) { forkjoinpool forkjoinpool = new forkjoinpool(); return forkjoinpool.invoke(new filesizefinder(file, log)); } @suppresswarnings("serial") private static class filesizefinder extends recursivetask<long> { final file file; final file log; filesizefinder(final file thefile, final file thelog) { file = thefile; log = thelog; } @override public long compute() { long size = 0; if (file.isfile()) { size = file.length(); outputfileutils.write(log, file); } else { final file[] children = file.listfiles(); if (children != null) { list<forkjointask<long>> tasks = new arraylist<forkjointask<long>>(); for (final file child : children) { if (child.isfile()) { size += child.length(); outputfileutils.write(log, child); } else { tasks.add(new filesizefinder(child, log)); } } for (final forkjointask<long> task : invokeall(tasks)) { size += task.join(); } } } return size; } } }
idirsizecalc.java
package com.sedaier.calcdir.service; import java.io.file; public interface idirsizecalc { long getsize(final file file, final file log); }
test.java
package com.sedaier.calcdir.test; import java.io.file; import com.sedaier.calcdir.service.idirsizecalc; import com.sedaier.calcdir.service.impl.dirsizecalcbyforkjoinpoolimpl; import com.sedaier.calcdir.tool.outputfileutils; public class test { public static void main(final string[] args) { string dirpath = "c:\\windows"; string log = "c:\\users\\administrator\\desktop\\log.log"; file file = new file(dirpath); file logfile = new file(log); calcdirsize(file, logfile, new dirsizecalcbyforkjoinpoolimpl()); outputfileutils.distory(); } private static void calcdirsize(file file, file log, idirsizecalc dirsizecalc) { dirsizecalc.getsize(file, log); } }
outputfileutils.java
package com.sedaier.calcdir.tool; import java.io.bufferedwriter; import java.io.file; import java.io.filewriter; import java.io.ioexception; import java.util.calendar; public class outputfileutils { public static int time = 0; //buffer刷信息时间 public static int overtime = 100; //避免重复初始化 public static boolean flag = false; public static filewriter out = null; public static bufferedwriter bw = null; //昨天 public static long day; //用于计算日期 -1 当前日期往前一天,-2 当前日期往前两天 public static int amount = -1; static { //初始化日期 calendar instance = calendar.getinstance(); instance.add(calendar.day_of_month, amount); day = instance.gettimeinmillis(); } public static void write(final file log, file file) { try { if (!flag && !log.exists()) { log.createnewfile(); flag = true; } if(out == null || bw == null) { out = new filewriter (log); bw = new bufferedwriter(out); } long lastmodified = file.lastmodified(); if(lastmodified > day) { bw.write(string.format("%s===大小=%d===时间=%tf",file.getabsolutepath(),file.length()/1000000,lastmodified)); bw.newline(); } time++; if(time > overtime) { bw.flush(); time = 0 ; } } catch (ioexception e) { e.printstacktrace(); } } public static void distory() { try { bw.close(); out.close(); system.out.println("关闭成功!"); } catch (ioexception e) { e.printstacktrace(); } } }
源码下载地址
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