com.blinkfox.jpack.utils.CompressKit Maven / Gradle / Ivy
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这是一个用于对 SpringBoot 服务打包为 Windows、Linux 下可部署包的 Maven 插件。
package com.blinkfox.jpack.utils;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.compress.archivers.tar.TarArchiveEntry;
import org.apache.commons.compress.archivers.tar.TarArchiveOutputStream;
import org.apache.commons.compress.archivers.zip.Zip64Mode;
import org.apache.commons.compress.archivers.zip.ZipArchiveEntry;
import org.apache.commons.compress.archivers.zip.ZipArchiveOutputStream;
import org.apache.commons.compress.compressors.gzip.GzipCompressorOutputStream;
import org.apache.commons.compress.utils.IOUtils;
/**
* 压缩工具类.
*
* @author blinkfox on 2019-04-23.
*/
public final class CompressKit {
/**
* 私有构造方法.
*/
private CompressKit() {}
/**
* 压缩文件夹为 zip 格式.
*
* @param dir 文件夹
* @param zipPath zip全路径名
* @throws IOException IO异常
*/
public static void zip(String dir, String zipPath) throws IOException {
compressFilesZip(getDirFiles(dir), zipPath, dir);
}
/**
* 递归取到当前目录所有文件.
*
* @param dir 文件夹
* @return 文件集合
*/
private static List getDirFiles(String dir) {
File[] files = new File(dir).listFiles();
if (files == null) {
return new ArrayList<>();
}
List filePaths = new ArrayList<>(files.length);
for (File file : files) {
if (file.isDirectory()) {
filePaths.add(file.getAbsolutePath());
filePaths.addAll(getDirFiles(file.getAbsolutePath()));
} else {
filePaths.add(file.getAbsolutePath());
}
}
return filePaths;
}
/**
* 文件名处理.
*
* @param dir 文件夹
* @param path 路径
* @return 文件名
*/
private static String getFilePathName(String dir, String path) {
String p = path.replace(dir + File.separator, "");
p = p.replace("\\", "/");
return p;
}
/**
* 把文件压缩成 zip 格式.
*
* @param filePaths 需要压缩的文件数组
* @param zipFilePath 压缩后的 zip 文件路径,如"D:/test/aa.zip";
* @param dir 待压缩的目录
* @throws IOException IO异常
*/
private static void compressFilesZip(List filePaths, String zipFilePath, String dir) throws IOException {
if (filePaths == null || filePaths.isEmpty()) {
return;
}
List files = getAllFiles(filePaths);
try (ZipArchiveOutputStream zaos = new ZipArchiveOutputStream(new File(zipFilePath))) {
zaos.setUseZip64(Zip64Mode.AsNeeded);
// 将每个文件用 ZipArchiveEntry 封装
// 再用 ZipArchiveOutputStream 写到压缩文件中
for (File file : files) {
zaos.putArchiveEntry(new ZipArchiveEntry(file, getFilePathName(dir, file.getAbsolutePath())));
if (!file.isDirectory()) {
compressFile(zaos, file);
}
}
zaos.finish();
}
}
/**
* 根据文件路径创建文件放入集合中，须将目录放在文件之前.
*
* @param filePaths 文件路径集合
* @return 文件对象集合
*/
private static List getAllFiles(List filePaths) {
List dirs = new ArrayList<>();
List files = new ArrayList<>();
for (String filePath : filePaths) {
File file = new File(filePath);
if (file.isDirectory()) {
dirs.add(file);
} else {
files.add(file);
}
}
dirs.addAll(files);
return dirs;
}
/**
* 压缩写入单个文件.
*
* @param zaos ZipArchiveOutputStream对象
* @param file 单个的文件对象
* @throws IOException IO异常
*/
private static void compressFile(ZipArchiveOutputStream zaos, File file) throws IOException {
try (
InputStream is = new FileInputStream(file);
InputStream bis = new BufferedInputStream(is)) {
byte[] buffer = new byte[1024];
int len;
while ((len = bis.read(buffer)) != -1) {
//把缓冲区的字节写入到 ZipArchiveEntry.
zaos.write(buffer, 0, len);
}
zaos.closeArchiveEntry();
}
}
/**
* 将给定目录压缩成 `.tar.gz` 格式.
*
* @param dirPath 文件夹路径
* @param tarGzPath 压缩文件的路径
* @throws IOException IOException
*/
public static void tarGz(String dirPath, String tarGzPath) throws IOException {
File tarGzFile = new File(tarGzPath);
try (FileOutputStream fos = new FileOutputStream(tarGzFile);
BufferedOutputStream bos = new BufferedOutputStream(fos);
GzipCompressorOutputStream gcos = new GzipCompressorOutputStream(bos);
TarArchiveOutputStream taos = new TarArchiveOutputStream(gcos)) {
String tarGzName = tarGzFile.getName().split(".tar.gz")[0] + File.separator;
File[] children = new File(dirPath).listFiles();
if (children != null && children.length > 0) {
for (File child : children) {
addFileToTarGz(taos, child.getAbsolutePath(), tarGzName);
}
}
taos.finish();
}
}
/**
* 将文件添加到 tar.gz 压缩文件夹中.
*
* @param taos TarArchiveOutputStream实例
* @param dirPath 文件夹路径
* @param base 基础路径
* @throws IOException IO异常
*/
private static void addFileToTarGz(TarArchiveOutputStream taos, String dirPath, String base) throws IOException {
File f = new File(dirPath);
String entryName = base + f.getName();
taos.putArchiveEntry(new TarArchiveEntry(f, entryName));
if (f.isFile()) {
try (FileInputStream in = new FileInputStream(f)) {
IOUtils.copy(in, taos);
}
taos.closeArchiveEntry();
} else {
taos.closeArchiveEntry();
File[] children = f.listFiles();
if (children != null && children.length > 0) {
for (File child : children) {
addFileToTarGz(taos, child.getAbsolutePath(), entryName + "/");
}
}
}
}
}