JAva時限圧縮zipのいくつかのスキーム
必要に応じて、指定されたディレクトリの下のファイルとフォルダを指定された
の名前に圧縮し、".zip"で終わる圧縮パッケージで顧客のダウンロードを提供します.package com.gblfy.util;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.zip.CRC32;
import java.util.zip.CheckedOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
/**
* java zip （ zip ）
*
* @author gblfy
* @date 2020-07-02
*/
public class ZipCompressorUtil {
static final int BUFFER = 8192;
private File zipFile;
public ZipCompressorUtil(String pathName) {
zipFile = new File(pathName);
}
/**
*
*
* ，
* :
* zip : a.zip
* : D:\1\
* :a.zip 1
*
*
* @param pathName /
*/
public void compressContainShell(String... pathName) {
ZipOutputStream out = null;
try {
FileOutputStream fileOutputStream = new FileOutputStream(zipFile);
CheckedOutputStream cos = new CheckedOutputStream(fileOutputStream,
new CRC32());
out = new ZipOutputStream(cos);
String basedir = "";
for (int i = 0; i < pathName.length; i++) {
//
compress(new File(pathName[i]), out, basedir);
}
out.close();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
*
*
* @param files
*/
public void compressContainShell(File[] files) {
ZipOutputStream out = null;
try {
FileOutputStream fileOutputStream = new FileOutputStream(zipFile);
CheckedOutputStream cos = new CheckedOutputStream(fileOutputStream,
new CRC32());
out = new ZipOutputStream(cos);
String basedir = "";
for (int i = 0; i < files.length; i++) {
//
compress(files[i], out, basedir);
}
out.close();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* /**
*
*
* ，
* :
* zip : a.zip
* : D:\1\
* :a.zip 1
*
*
* @param srcPathNameOrFileName
*/
public void compressNotContainShell(String srcPathNameOrFileName) {
ZipOutputStream out = null;
try {
FileOutputStream fileOutputStream = new FileOutputStream(zipFile);
CheckedOutputStream cos = new CheckedOutputStream(fileOutputStream,
new CRC32());
out = new ZipOutputStream(cos);
String basedir = "";
//
File dir = new File(srcPathNameOrFileName);
if (!dir.exists()) {
System.out.println(" , ！");
return;
}
File[] files = dir.listFiles();
for (int i = 0; i < files.length; i++) {
compress(new File(String.valueOf(files[i])), out, basedir);
}
out.close();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* :
*
* 1. ,
* 2. ,
*
*
* @param file
* @param out
* @param basedir
*/
private void compress(File file, ZipOutputStream out, String basedir) {
if (file.isDirectory()) {
System.out.println(" ：" + basedir + file.getName());
//
this.compressDirectory(file, out, basedir);
} else {
System.out.println(" ：" + basedir + file.getName());
//
this.compressFile(file, out, basedir);
}
}
/**
*
*
* @param dir
* @param out zip
* @param basedir : “” /
*/
private void compressDirectory(File dir, ZipOutputStream out, String basedir) {
if (!dir.exists()) {
System.out.println(" , ！");
return;
}
File[] files = dir.listFiles();
for (int i = 0; i < files.length; i++) {
/* */
compress(files[i], out, basedir + dir.getName() + "/");
}
}
/**
*
*
* @param file
* @param out zip
* @param basedir : “” /
*/
private void compressFile(File file, ZipOutputStream out, String basedir) {
if (!file.exists()) {
System.out.println(" , ！");
return;
}
try {
BufferedInputStream bis = new BufferedInputStream(
new FileInputStream(file));
ZipEntry entry = new ZipEntry(basedir + file.getName());
out.putNextEntry(entry);
int count;
byte data[] = new byte[BUFFER];
while ((count = bis.read(data, 0, BUFFER)) != -1) {
out.write(data, 0, count);
}
bis.close();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
*
*
* ，
* :
* zip : a.zip
* : D:\1\
* :a.zip 1
*
*
* @param srcPathNameOrFileName
*/
public void compressContainShell(String srcPathNameOrFileName) {
File file = new File(srcPathNameOrFileName);
if (!file.exists()) {
throw new RuntimeException(srcPathNameOrFileName + " ！");
}
try {
FileOutputStream fileOutputStream = new FileOutputStream(zipFile);
CheckedOutputStream cos = new CheckedOutputStream(fileOutputStream,
new CRC32());
ZipOutputStream out = new ZipOutputStream(cos);
String basedir = "";
compress(file, out, basedir);
out.close();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
//-------------------------------------------- --------------------------------------------
public static void main(String[] args) {
ZipCompressorUtil zc = new ZipCompressorUtil("D:/resource.zip");
String b = "D:\\1\\";
// // String b = "D:\\1.jpg";
zc.compressNotContainShell(b);
// zc.compress("D:\\1.jpg", "D:\\3.jpeg", "D:\\4.jpg", b);
}
}