Android zip解压
16lz
2021-01-23
package com.su.mywifi.util;/** * Android Zip压缩解压缩 * @author Ren.xia * @version 1.0 * @updated 26-七月-2010 13:04:27 */ public class XZip { public XZip(){ } /** * 取得压缩包中的 文件列表(文件夹,文件自选) * @param zipFileString 压缩包名字 * @param bContainFolder 是否包括 文件夹 * @param bContainFile 是否包括 文件 * @return * @throws Exception */ public static java.util.List<java.io.File> GetFileList(String zipFileString, boolean bContainFolder, boolean bContainFile)throws Exception { android.util.Log.v("XZip", "GetFileList(String)"); java.util.List<java.io.File> fileList = new java.util.ArrayList<java.io.File>(); java.util.zip.ZipInputStream inZip = new java.util.zip.ZipInputStream(new java.io.FileInputStream(zipFileString)); java.util.zip.ZipEntry zipEntry; String szName = ""; while ((zipEntry = inZip.getNextEntry()) != null) { szName = zipEntry.getName(); if (zipEntry.isDirectory()) { // get the folder name of the widget szName = szName.substring(0, szName.length() - 1); java.io.File folder = new java.io.File(szName); if (bContainFolder) { fileList.add(folder); } } else { java.io.File file = new java.io.File(szName); if (bContainFile) { fileList.add(file); } } }//end of while inZip.close(); return fileList; } /** * 返回压缩包中的文件InputStream * @param zipFileString 压缩文件的名字 * @param fileString 解压文件的名字 * @return InputStream * @throws Exception */ public static java.io.InputStream UpZip(String zipFileString, String fileString)throws Exception { android.util.Log.v("XZip", "UpZip(String, String)"); java.util.zip.ZipFile zipFile = new java.util.zip.ZipFile(zipFileString); java.util.zip.ZipEntry zipEntry = zipFile.getEntry(fileString); return zipFile.getInputStream(zipEntry); } /** * 解压一个压缩文档 到指定位置 * @param zipFileString 压缩包的名字 * @param outPathString 指定的路径 * @throws Exception */ public static void UnZipFolder(String zipFileString, String outPathString)throws Exception { android.util.Log.v("XZip", "UnZipFolder(String, String)"+zipFileString+" "+outPathString); java.util.zip.ZipInputStream inZip = new java.util.zip.ZipInputStream(new java.io.FileInputStream(zipFileString)); java.util.zip.ZipEntry zipEntry; String szName = ""; while ((zipEntry = inZip.getNextEntry()) != null) { szName = zipEntry.getName(); if (zipEntry.isDirectory()) { // get the folder name of the widget szName = szName.substring(0, szName.length() - 1); java.io.File folder = new java.io.File(outPathString + java.io.File.separator + szName); folder.mkdirs(); } else { java.io.File file = new java.io.File(outPathString + java.io.File.separator + szName); file.createNewFile(); // get the output stream of the file java.io.FileOutputStream out = new java.io.FileOutputStream(file); int len; byte[] buffer = new byte[1024]; // read (len) bytes into buffer while ((len = inZip.read(buffer)) != -1) { // write (len) byte from buffer at the position 0 out.write(buffer, 0, len); out.flush(); } out.close(); } }//end of while inZip.close(); }//end of func /** * 压缩文件,文件夹 * @param srcFileString 要压缩的文件/文件夹名字 * @param zipFileString 指定压缩的目的和名字 * @throws Exception */ public static void ZipFolder(String srcFileString, String zipFileString)throws Exception { android.util.Log.v("XZip", "ZipFolder(String, String)"); //创建Zip包 java.util.zip.ZipOutputStream outZip = new java.util.zip.ZipOutputStream(new java.io.FileOutputStream(zipFileString)); //打开要输出的文件 java.io.File file = new java.io.File(srcFileString); //压缩 ZipFiles(file.getParent()+java.io.File.separator, file.getName(), outZip); //完成,关闭 outZip.finish(); outZip.close(); }//end of func /** * 压缩文件 * @param folderString * @param fileString * @param zipOutputSteam * @throws Exception */ private static void ZipFiles(String folderString, String fileString, java.util.zip.ZipOutputStream zipOutputSteam)throws Exception{ android.util.Log.v("XZip", "ZipFiles(String, String, ZipOutputStream)"); if(zipOutputSteam == null) return; java.io.File file = new java.io.File(folderString+fileString); //判断是不是文件 if (file.isFile()) { java.util.zip.ZipEntry zipEntry = new java.util.zip.ZipEntry(fileString); java.io.FileInputStream inputStream = new java.io.FileInputStream(file); zipOutputSteam.putNextEntry(zipEntry); int len; byte[] buffer = new byte[4096]; while((len=inputStream.read(buffer)) != -1) { zipOutputSteam.write(buffer, 0, len); } zipOutputSteam.closeEntry(); } else { //文件夹的方式,获取文件夹下的子文件 String fileList[] = file.list(); //如果没有子文件, 则添加进去即可 if (fileList.length <= 0) { java.util.zip.ZipEntry zipEntry = new java.util.zip.ZipEntry(fileString+java.io.File.separator); zipOutputSteam.putNextEntry(zipEntry); zipOutputSteam.closeEntry(); } //如果有子文件, 遍历子文件 for (int i = 0; i < fileList.length; i++) { ZipFiles(folderString, fileString+java.io.File.separator+fileList[i], zipOutputSteam); }//end of for }//end of if }//end of func public void finalize() throws Throwable { } } 更多相关文章
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