java C盘文件统计工具

港控/mmm° 2022-10-19 12:59 23阅读 0赞

## java C盘文件统计工具 ##

### 概述 ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxMTI1MjgxODIz_size_16_color_FFFFFF_t_70]  
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 ###

https://gitee.com/lanseyouyu/sediaer-calcdir.git

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxMTI1MjgxODIz_size_16_color_FFFFFF_t_70]: /images/20221004/b9803b12e73843008f86300c372eeedf.png