标签:方法 directory tput list zip cto 解压 style void
package com.ytd.ebos.platform.zjmb.controller; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.InputStream; import java.nio.charset.Charset; import java.util.zip.CRC32; import java.util.zip.CheckedInputStream; import java.util.zip.ZipEntry; import java.util.zip.ZipInputStream; import java.util.zip.ZipOutputStream; /** * @author Administrator ZIP 解压缩工具包 */ /** * @author Administrator * */ public class ZipUtils { /** * Default buff byte size * */ private static final int DEFAULT_BUFF_SIZE = 1024; /** * Default basedir value * */ private static final boolean DEFAULT_DIR = false; /** // 程序入口1,输入需要解压的文件全路径,然后在当前文件夹下面解压出文件 * @param srcPath * @throws Exception */ public static void decompress(String srcPath) throws Exception { decompress(new File(srcPath)); } /** // 程序入口2,输入需要解压的文件File类,然后在当前文件夹下面解压出文件 * @param srcFile * @throws Exception */ public static void decompress(File srcFile) throws Exception { File baseFile = srcFile.getParentFile();//输出上层目录 decompress(srcFile, baseFile); } /** // 程序入口3 ,输入需要解压的的文件全路径,以及解压到目的文件全路径 * @param srcPath * @param destPath * @throws Exception */ public static void decompress(String srcPath, String destPath) throws Exception { decompress(new File(srcPath), new File(destPath)); } /** // 程序入口4,输入需要解压的文件File类,输入目的文件夹File类 * @param srcFile * @param destFile * @throws Exception */ public static void decompress(File srcFile, File destFile) throws Exception { CheckedInputStream cis = new CheckedInputStream(new FileInputStream(srcFile), new CRC32()); ZipInputStream zis = new ZipInputStream(cis); // 如果是multipartFile,可以使用如下方法取得zipInputStream // InputStream inputStream = multipartFile.getInputStream(); // ZipInputStream zis = new ZipInputStream(new BufferedInputStream(inputStream),Charset.forName("UTF-8")); doDecompress(destFile, zis); zis.close(); } /**输入目的文件夹File类,输入压缩文件流 * @param destFile * @param zis * @throws Exception */ private static void doDecompress(File destFile, ZipInputStream zis) throws Exception { ZipEntry zipEntry = null; while ((zipEntry = zis.getNextEntry()) != null) { String dir = destFile.getPath() + File.separator + zipEntry.getName(); File dirFile = new File(dir); fileProber(dirFile); // 解压出来的是文件文件夹,则直接创建 if (zipEntry.isDirectory()) { dirFile.mkdirs(); } else { doDecompressFile(dirFile, zis); } zis.closeEntry(); } } /**边读边写,把输入流程写到文件 * @param destFile * @param zis * @throws Exception */ private static void doDecompressFile(File destFile, ZipInputStream zis) throws Exception { BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(destFile)); int len; byte[] buff = new byte[DEFAULT_BUFF_SIZE]; while ((len = zis.read(buff, 0, DEFAULT_BUFF_SIZE)) != -1) { bos.write(buff, 0, len); } bos.close(); } /** * 文件探测,如果没有父级文件夹,则一直创建 * * When the parent file not exist.Create it. * * @param dirFile * @throws Exception */ public static void fileProber(File dirFile) throws Exception { File parentFile = dirFile.getParentFile(); if (!parentFile.exists()) { fileProber(parentFile); parentFile.mkdirs(); } } /** * @param srcPath * @param destPath * @param dirFlag * @throws Exception */ public static void compress(String srcPath, String destPath, boolean dirFlag) throws Exception { compress(new File(srcPath), new File(destPath), dirFlag); } /** * @param srcPath * @param destPath * @throws Exception */ public static void compress(String srcPath, String destPath) throws Exception { compress(new File(srcPath), new File(destPath), DEFAULT_DIR); } /** * @param srcFile * @param destFile * @param dirFlag * @throws Exception */ public static void compress(File srcFile, File destFile, boolean dirFlag) throws Exception { compress(srcFile, new ZipOutputStream(new FileOutputStream(destFile)), dirFlag); } /** * @param srcFile * @param zos * @param dirFlag * @throws Exception */ public static void compress(File srcFile, ZipOutputStream zos, boolean dirFlag) throws Exception { if (srcFile.isDirectory()) { if (dirFlag) { doCompress(zos, srcFile, srcFile.getName() + File.separator); } else { doCompress(zos, srcFile, ""); } } else { doCompress(zos, srcFile, ""); } zos.close(); } /** * @param zos * @param file * @param baseDir * @throws Exception */ public static void doCompress(ZipOutputStream zos, File file, String baseDir) throws Exception { if (file.isDirectory()) { File[] files = file.listFiles(); for (int i = 0; i < files.length; i++) { doCompress(zos, files[i], baseDir); } } else { byte[] buff = new byte[DEFAULT_BUFF_SIZE]; InputStream in = new FileInputStream(file); zos.putNextEntry(new ZipEntry(baseDir + File.separator + file.getName())); int len; while ((len = in.read(buff, 0, DEFAULT_BUFF_SIZE)) != -1) { zos.write(buff, 0, len); } in.close(); } } public static void main(String[] args) throws Exception{ String dir = "C:\\Users\\Administrator\\Desktop\\test\\" ; String src = "C:\\Users\\Administrator\\Desktop\\xxxx.zip" ; // decompress(src); decompress(src,dir); } }
标签:方法 directory tput list zip cto 解压 style void
原文地址:https://www.cnblogs.com/rdchen/p/12959123.html