package com.ahzc.test;import java.io.BufferedInputStream;import java.io.BufferedOutputStream;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.util.Enumeration;import java.util.zip.ZipEntry;import java.util.zip.ZipFile;import java.util.zip.ZipInputStream;import java.util.zip.ZipOutputStream;public class Compress { /** * 功能：把 sourceDir 目录下的所有文件进行 zip 格式的压缩，保存为指定 zip 文件 * @param sourceDir 如果是目录，eg：D:\\MyEclipse\\first\\testFile，则压缩目录下所有文件； * 如果是文件，eg：D:\\MyEclipse\\first\\testFile\\aa.zip，则只压缩本文件 * @param zipFile 最后压缩的文件路径和名称,eg:D:\\MyEclipse\\first\\testFile\\aa.zip */ public static File doZip(String sourceDir, String zipFilePath) throws IOException { File file = new File(sourceDir); File zipFile = new File(zipFilePath); ZipOutputStream zos = null; try { // 创建写出流操作 OutputStream os = new FileOutputStream(zipFile); BufferedOutputStream bos = new BufferedOutputStream(os); zos = new ZipOutputStream(bos); String basePath = null; // 获取目录 if(file.isDirectory()) { basePath = file.getPath(); }else { basePath = file.getParent(); } zipFile(file, basePath, zos); }finally { if(zos != null) { zos.closeEntry(); zos.close(); } } return zipFile; } /** * @param source 源文件 * @param basePath * @param zos */ private static void zipFile(File source, String basePath, ZipOutputStream zos) throws IOException { File[] files = null; if (source.isDirectory()) { files = source.listFiles(); } else { files = new File[1]; files[0] = source; } InputStream is = null; String pathName; byte[] buf = new byte[1024]; int length = 0; try{ for(File file : files) {//循环压缩文件夹下面的所有文件,知道zos.close的时候才算压缩完成 if(file.isDirectory()) { pathName = file.getPath().substring(basePath.length() + 1) + "/"; zos.putNextEntry(new ZipEntry(pathName)); zipFile(file, basePath, zos); }else { pathName = file.getPath().substring(basePath.length() + 1); is = new FileInputStream(file); BufferedInputStream bis = new BufferedInputStream(is); zos.putNextEntry(new ZipEntry(pathName)); while ((length = bis.read(buf)) > 0) { zos.write(buf, 0, length); } } } }finally { if(is != null) { is.close(); } } } /** * 解压到指定目录 * @param zipPath 压缩包目录 * @param descDir 生成文件保存目录 * */ public static void unZipFiles(String zipPath,String descDir)throws IOException{ unZipFiles(new File(zipPath), descDir); } /** * 解压文件到指定目录 * @param zipFile * @param descDir * */ @SuppressWarnings("rawtypes") public static void unZipFiles(File zipFile2,String descDir)throws IOException{ try { //根据ZIP文件创建ZipFile对象 ZipFile zipFile = new ZipFile(zipFile2); ZipEntry entry = null; String entryName = null; String targetFileName = null; byte[] buffer = new byte[1024]; int bytes_read; //获取ZIP文件里所有的entry Enumeration entrys = zipFile.entries(); //遍历所有entry while (entrys.hasMoreElements()) { entry = (ZipEntry)entrys.nextElement(); //获得entry的名字 entryName = entry.getName(); targetFileName = descDir+File.separator+entryName; if (entry.isDirectory()){ // 如果entry是一个目录，则创建目录 new File(targetFileName).mkdirs(); continue; } else { // 如果entry是一个文件，则创建父目录 new File(targetFileName).getParentFile().mkdirs(); } //否则创建文件 File targetFile = new File(targetFileName); System.out.println("创建文件：" + targetFile.getAbsolutePath()); //打开文件输出流 FileOutputStream os = new FileOutputStream(targetFile); //从ZipFile对象中打开entry的输入流 InputStream is = zipFile.getInputStream(entry); while ((bytes_read = is.read(buffer)) != -1){ os.write(buffer, 0, bytes_read); } //关闭流 os.close( ); is.close( ); } System.out.println("解压缩文件成功！"); } catch (IOException err) { System.err.println("解压缩文件失败: " + err); } }} /** * 将zip压缩包解压到目标路径 * @param srcPath 目标路径 * @param zipPath zip压缩包路径 * @return boolean ret 是否解压成功 * */ public static boolean swapZipToDirectory(String srcPath, String zipPath) { boolean ret = true; //解压缩目录zipPath这个文件到 SwapPath目录 if (!new File(zipPath).exists()){ ret = false; return ret; } if (!new File(srcPath).exists()){ (new File(srcPath)).mkdirs(); } Project proj = new Project(); Expand expand = new Expand(); expand.setProject(proj); expand.setTaskType("UNZIP"); expand.setTaskName("UNZIP"); expand.setEncoding("GBK"); expand.setSrc(new File(zipPath)); expand.setDest(new File(srcPath)); expand.execute(); return ret; } /** * 将目标路径压缩成zip压缩包 * @param srcPath 目标路径 * @param zipPath zip压缩包路径 * @return boolean ret 是否压缩成功 * */ public static boolean swapDirectoryToZip(String srcPath, String zipPath) { //压缩目录xmldirPath下的所有文件 boolean ret = true; File objFile = new File(srcPath); if (!objFile.exists()){ ret = false; return ret; } Project objProject = new Project(); FileSet objFileSet = new FileSet(); objFileSet.setProject(objProject); // 判断是目录还是文件 if (objFile.isDirectory()) { objFileSet.setDir(objFile); } else { objFileSet.setFile(objFile); } Zip objZip = new Zip(); objZip.setProject(objProject); objZip.setDestFile(new File(zipPath)); objZip.addFileset(objFileSet); objZip.setEncoding("GBK"); objZip.execute(); return ret; }