java 用在把一个文件夹下的所有文件都放到一个文件夹下,删除多层文件夹

时间:2021-04-26 09:56:09

        java 用在把一个文件夹下的所有文件都放到一个文件夹下,删除多层文件夹

     该小程序是一个完整的功能,可以直接使用

package com.yangjf.service.impl;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

import org.apache.log4j.Logger;


public class FolderFileToPack {

public static List<String> listFile = new ArrayList<String>();

public static List<String> listFileName = new ArrayList<String>();

private final Logger logger = Logger.getLogger(getClass());

/**
* 将存放在sourceFilePath目录下的源文件夹下的所有文件,打包成fileName名称的zip文件,并存放到zipFilePath路径下
* (用在把一个文件夹下的所有文件都放到一个文件夹下,删除多层文件夹)
* @param sourceFilePath
* :待压缩的文件路径
* @param zipFilePath
* :压缩后存放路径
* @param fileName
* :压缩后文件的名称
* @return
*/
public static boolean fileToZip(String sourceFilePath,String zipFilePath, String fileName) {
boolean flag = false;
FileInputStream fis = null;
BufferedInputStream bis = null;
FileOutputStream fos = null;
ZipOutputStream zos = null;
getFile(sourceFilePath);
try {
File zipFile = new File(zipFilePath + "/" + fileName + ".zip");
if (zipFile.exists()) {
System.out.println(zipFilePath + "目录下存在名字为:" + fileName
+ ".zip" + "的打包文件.");
} else {
fos = new FileOutputStream(zipFile);
zos = new ZipOutputStream(new BufferedOutputStream(fos));
byte[] bufs = new byte[1024 * 1024];
for (int i = 0; i < listFile.size(); i++) {
try {
//把文件路径按“\”划分,获取最后一个也就是文件名
String[] listFileSome = listFile.get(i).split("\\\\");
int listLength = listFileSome.length;
String oneFileName = listFileSome[listLength-1];
//查重文件名,重复加数字
oneFileName = checkFileName(oneFileName,0);
//创建ZIP实体,并添加进压缩包
ZipEntry zipEntry = new ZipEntry(oneFileName);
zos.putNextEntry(zipEntry);
// 读取待压缩的文件并写进压缩包里
fis = new FileInputStream(listFile.get(i));
bis = new BufferedInputStream(fis, 1024 * 1024);
int read = 0;
while ((read = bis.read(bufs, 0, 1024 * 1024)) != -1) {
zos.write(bufs, 0, read);
}
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
//logger.error("");
}

}
flag = true;
}
} catch (FileNotFoundException e) {
e.printStackTrace();
throw new RuntimeException(e);
} catch (IOException e) {
e.printStackTrace();
throw new RuntimeException(e);
} finally {
// 关闭流
try {
if (null != bis)
bis.close();
if (null != zos)
zos.close();
} catch (IOException e) {
e.printStackTrace();
throw new RuntimeException(e);
}
}
return flag;
}

//查重文件名,最后添加进去
public static String checkFileName(String oneFileName,int i){

if(listFileName.contains(oneFileName)){
String[] partName = oneFileName.split("\\.");
oneFileName = partName[0]+ ++i+"."+partName[1];
checkFileName(oneFileName,i);
}else{
listFileName.add(oneFileName);
}
return oneFileName;

}

public static void getFile(String path) {
File file = new File(path);
File[] tempList = file.listFiles();
for (File f : tempList) {
if (f.isFile()) {
listFile.add(f.getPath());
System.out.println(f.getPath());
continue;
}
if (f.isDirectory()) {
getFile(f.getPath());
}
}

}

public static void main(String[] args) {
String sourceFilePath = "F:\\uploadT";
String zipFilePath = "F:\\log";
String fileName = "manyFileType02";
fileToZip(sourceFilePath,zipFilePath, fileName);

}

}