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将指定目录压缩为zip

时间:2022-08-18 18:24:07浏览次数:40  
标签:zip fileToZip 压缩 sourceFile zos File new 目录

package com.phm.common.util;
import java.io.*;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

/**
* ZipUtils
*
* @author shuai
* @date 2021/7/30
*/
public class ZipUtils {

public static void main(String[] args) throws Exception {
File sourceFile = new File("D:/test/testFile");
fileToZip(sourceFile);
}


/**
* sourceFile一定要是文件夹
* 默认会在同目录下生成zip文件
*
* @param sourceFilePath
* @throws Exception
*/
public static void fileToZip(String sourceFilePath) throws Exception {
fileToZip(new File(sourceFilePath));
}

/**
* sourceFile一定要是文件夹
* 默认会在同目录下生成zip文件
*
* @param sourceFile
* @throws Exception
*/
public static void fileToZip(File sourceFile) throws Exception {

if (!sourceFile.exists()) {
throw new RuntimeException("不存在");
}
if (!sourceFile.isDirectory()) {
throw new RuntimeException("不是文件夹");
}
//zip文件生成位置
File zipFile = new File(sourceFile.getAbsolutePath() + ".zip");
FileOutputStream fos = new FileOutputStream(zipFile);
ZipOutputStream zos = new ZipOutputStream(new BufferedOutputStream(fos));
fileToZip(zos, sourceFile, "");
zos.close();
fos.close();
}


private static void fileToZip(ZipOutputStream zos, File sourceFile, String path) throws Exception {

System.out.println(sourceFile.getAbsolutePath());

//如果是文件夹只创建zip实体即可,如果是文件,创建zip实体后还要读取文件内容并写入
if (sourceFile.isDirectory()) {
path = path + sourceFile.getName() + "/";
ZipEntry zipEntry = new ZipEntry(path);
zos.putNextEntry(zipEntry);
for (File file : sourceFile.listFiles()) {
fileToZip(zos, file, path);
}
} else {
//创建ZIP实体,并添加进压缩包
ZipEntry zipEntry = new ZipEntry(path + sourceFile.getName());
zos.putNextEntry(zipEntry);
byte[] bufs = new byte[1024 * 10];
//读取待压缩的文件并写进压缩包里
FileInputStream fis = new FileInputStream(sourceFile);
BufferedInputStream bis = new BufferedInputStream(fis, 1024 * 10);
int read = 0;
while ((read = bis.read(bufs, 0, 1024 * 10)) != -1) {
zos.write(bufs, 0, read);
}
bis.close();
fis.close();
}
}
}

标签:zip,fileToZip,压缩,sourceFile,zos,File,new,目录
From: https://www.cnblogs.com/dangwang/p/16599702.html

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