压缩为ZIP下载
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.io.OutputStream;import java.util.Map;import org.apache.tools.tar.TarEntry;import org.apache.tools.tar.TarOutputStream;import org.apache.tools.zip.ZipEntry;import org.apache.tools.zip.ZipFile;import org.apache.tools.zip.ZipOutputStream;public class CompressionUtil {private static final int BUFFEREDSIZE = 1024;/** * 将文件解压缩到指定目录 * * @param srcFile * @param descDir * @throws IOException */public static void unzip(File srcFile, String descDir) throws IOException {// 创建解压目录new File(descDir).mkdirs();ZipFile zipFile = new ZipFile(srcFile);String strPath, gbkPath, strtemp;File tempFile = new File(descDir);strPath = tempFile.getAbsolutePath();@SuppressWarnings("rawtypes")java.util.Enumeration e = zipFile.getEntries();while (e.hasMoreElements()) {org.apache.tools.zip.ZipEntry zipEnt = (ZipEntry) e.nextElement();gbkPath = zipEnt.getName();if (zipEnt.isDirectory()) {strtemp = strPath + File.separator + gbkPath;File dir = new File(strtemp);dir.mkdirs();continue;} else {// 读写文件InputStream is = zipFile.getInputStream(zipEnt);BufferedInputStream bis = new BufferedInputStream(is);gbkPath = zipEnt.getName();strtemp = strPath + File.separator + gbkPath;// 建目录String strsubdir = gbkPath;for (int i = 0; i < strsubdir.length(); i++) {if (strsubdir.substring(i, i + 1).equalsIgnoreCase("/")) {String temp = strPath + File.separator+ strsubdir.substring(0, i);File subdir = new File(temp);if (!subdir.exists())subdir.mkdir();}}FileOutputStream fos = new FileOutputStream(strtemp);BufferedOutputStream bos = new BufferedOutputStream(fos);int c;while ((c = bis.read()) != -1) {bos.write((byte) c);}bos.close();fos.close();}}}/** * 解压指定路径的文件至指定目录 * * @param srcFilepath * @param descDir * @throws IOException */public static void unzip(String srcFilepath, String descDir)throws IOException {File srcFile = new File(srcFilepath);unzip(srcFile, descDir);}/** * 解压文件到当前目录 * * @param srcFile * @throws IOException */public static void unzip(File srcFile) throws IOException {unzip(srcFile, srcFile.getParent());}/** * 解压指定路径的文件至当前目录 * * @param srcFilepath * @throws IOException */public static void unzip(String srcFilepath) throws IOException {File srcFile = new File(srcFilepath);unzip(srcFile, srcFile.getParent());}/** * 压缩zip格式的压缩文件 * * @param inputFile * 需压缩文件 * @param out * 输出压缩文件 * @param base * ZipEntry name * @throws IOException */private static void zip(File inputFile, ZipOutputStream out, String base)throws IOException {if (inputFile.isDirectory()) {File[] inputFiles = inputFile.listFiles();out.putNextEntry(new ZipEntry(base + "/"));base = base.length() == 0 ? "" : base + "/";for (int i = 0; i < inputFiles.length; i++) {zip(inputFiles[i], out, base + inputFiles[i].getName());}} else {if (base.length() > 0) {out.putNextEntry(new ZipEntry(base));} else {out.putNextEntry(new ZipEntry(inputFile.getName()));}FileInputStream in = new FileInputStream(inputFile);try {int c;byte[] by = new byte[BUFFEREDSIZE];while ((c = in.read(by)) != -1) {out.write(by, 0, c);}} catch (IOException e) {throw e;} finally {in.close();}}}/** * 压缩zip格式的压缩文件 * * @param inputFile * 需压缩文件 * @param zipFilename * 输出文件及详细路径 * @throws IOException */public static void zip(File inputFile, String zipFilename)throws IOException {ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipFilename));try {zip(inputFile, out, "");} catch (IOException e) {throw e;} finally {out.close();}}/** * 压缩zip格式的压缩文件 * * @param inputFilename * 压缩的文件或文件夹及详细路径 * @param zipFilename * 输出文件名称及详细路径 * @throws IOException */public static void zip(String inputFilename, String zipFilename)throws IOException {zip(new File(inputFilename), zipFilename);}/** * 压缩tar格式的压缩文件 * * @param inputFilename * 压缩文件 * @param tarFilename * 输出路径 * @throws IOException */public static void tar(String inputFilename, String tarFilename)throws IOException {tar(new File(inputFilename), tarFilename);}/** * 压缩tar格式的压缩文件 * * @param inputFile * 压缩文件 * @param tarFilename * 输出路径 * @throws IOException */public static void tar(File inputFile, String tarFilename)throws IOException {TarOutputStream out = new TarOutputStream(new FileOutputStream(tarFilename));try {tar(inputFile, out, "");} catch (IOException e) {throw e;} finally {out.close();}}/** * 压缩tar格式的压缩文件 * * @param inputFile * 压缩文件 * @param out * 输出文件 * @param base * 结束标识 * @throws IOException */private static void tar(File inputFile, TarOutputStream out, String base)throws IOException {if (inputFile.isDirectory()) {File[] inputFiles = inputFile.listFiles();out.putNextEntry(new TarEntry(base + "/"));base = base.length() == 0 ? "" : base + "/";for (int i = 0; i < inputFiles.length; i++) {tar(inputFiles[i], out, base + inputFiles[i].getName());}} else {if (base.length() > 0) {out.putNextEntry(new TarEntry(base));} else {out.putNextEntry(new TarEntry(inputFile.getName()));}FileInputStream in = new FileInputStream(inputFile);try {int c;byte[] by = new byte[BUFFEREDSIZE];while ((c = in.read(by)) != -1) {out.write(by, 0, c);}} catch (IOException e) {throw e;} finally {in.close();}}}/** * @param files <k, v> * k zip包中的路径 * v 待压缩的文件 * @param out 输出流 */public static void zip(Map<String, File> files, OutputStream out) throws IOException {ZipOutputStream zos = new ZipOutputStream(out);for(String path : files.keySet()){zip(files.get(path), zos, path);}zos.close();}/** * 流压缩 * * @param in 输入流 * @param out 输出流 * @param name 压缩包中路径 * @throws IOException */private static void zip(InputStream in, ZipOutputStream out, String name)throws IOException {out.putNextEntry(new ZipEntry(name));try {int c;byte[] by = new byte[BUFFEREDSIZE];while ((c = in.read(by)) != -1) {out.write(by, 0, c);}} catch (IOException e) {throw e;} finally {in.close();}}/** * 流压缩 * * @param in * @param out * @throws IOException */public static void zip2(Map<String, InputStream> in, OutputStream out) throws IOException {ZipOutputStream zos = new ZipOutputStream(out);for(String path : in.keySet()){zip(in.get(path), zos, path);}zos.close();}/*public static void main(String[] args) throws IOException {ZipOutputStream zos = new ZipOutputStream(new File("D:/btest/jjx.zip"));zip(new File("D:/atest/build.xml"), zos, "srv1/build.xml");zip(new File("D:/atest/jaxws-custom.xml"), zos, "srv2/jaxws-custom.xml");}*/}

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调用：

Map<String, InputStream> in = new HashMap<String, InputStream>();for(EsbWsdlFileV f : ewf){String path = f.getServerAbsPath();String zipPath = basePath.get(f.getServiceId()) + "/" + FilenameUtils.getName(path);try {in.put(zipPath, new FileInputStream(new File(path)));detail.append(f.getMd5CheckSum()).append("\t").append(zipPath).append("\n");} catch (FileNotFoundException e) {logger.error(path + "not found...");}}detail.append("\n");detail.append(String.format("%1$tF %1$tT", timestamp)).append("\n");logger.debug("zip files parm : " + in);try {in.put("md5checksum.txt", IOUtils.toInputStream(detail.toString(), "UTF-8"));} catch (IOException e1) {logger.error("can not generate file list...");}// httpheader设置response.setContentType("application/x-msdownload;");  response.setHeader("Content-disposition", "attachment; filename = export-wsdl-" + String.format("%1$tY%1$tm%1$td%1$tH%1$tM%1$tS", timestamp) + ".zip");// 将wsdl文件压缩至请求流中try {CompressionUtil.zip2(in, response.getOutputStream());} catch (IOException e) {e.printStackTrace();logger.error("exportWsdl zip error...");}

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最后生成名为export-wsdl-20130815162013.zip的压缩文件：

包含文件：

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