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
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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
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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
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package com.sedaier.calcdir.service; import java.io.File; public interface IDirSizeCalc { long getSize( final File file, final File log); } |
Test.java
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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
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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
https://gitee.com/lanseyouyu/sediaer-calcdir.git
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原文链接:https://blog.csdn.net/qq125281823/article/details/118651166