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Java 压缩文件
public class Zip { public Zip() { } /** * 压缩整个目录 * @param inputFileName * @param fileDir * @throws HsException * @throws Exception */ public void zip(String zipDirFileName,String fileDir) throws HsException{ try { zip(zipDirFileName, new File(fileDir)); } catch (Exception e) { throw new HsException(HsErrorMsg.ERR_DEFAULT,"压缩文件夹出错！",e); } } /** * 压缩整个目录 * @param zipFileName * @param inputFile * @throws Exception */ private void zip(String zipFileName, File inputFile) throws Exception { ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipFileName)); zip(out, inputFile, ""); System.out.println("zip done"); out.close(); } private void zip(ZipOutputStream out, File f, String base) throws Exception { if (f.isDirectory()) { File[] fl = f.listFiles(); out.putNextEntry(new org.apache.tools.zip.ZipEntry(base + "/")); base = base.length() == 0 ? "" : base + "/"; for (int i = 0; i < fl.length; i++) { zip(out, fl[i], base + fl[i].getName()); } }else { out.putNextEntry(new org.apache.tools.zip.ZipEntry(base)); FileInputStream in = new FileInputStream(f); int b; System.out.println(base); while ( (b = in.read()) != -1) { out.write(b); } in.close(); } } /** * @param zipFileName为需要解压的zip文件 * @param extPlace为解压后文件的存放路径 * @param qName 解压后的名字前面加上前缀 * return 所有文件 * @throws HsException */ public String[] UnZip(String zipFileName, String extPlace,String qName) throws HsException { String files = ""; try{ ZipFile zipFile = new ZipFile(zipFileName); Enumeration e = zipFile.getEntries(); ZipEntry zipEntry = null; while (e.hasMoreElements()) { zipEntry = (ZipEntry) e.nextElement(); String entryName = zipEntry.getName(); String names[] = entryName.split("/"); int length = names.length; String path = extPlace; for (int v = 0; v < length; v++) { if (v < length - 1) { path += names[v] + "/"; new File(path).mkdir(); }else { // 最后一个 if (entryName.endsWith("/")) { // 为目录,则创建文件夹 new File(extPlace + entryName).mkdir(); }else { InputStream in = zipFile.getInputStream(zipEntry); OutputStream os = new FileOutputStream(new File(extPlace + qName+entryName)); byte[] buf = new byte[1024]; int len; while ( (len = in.read(buf)) > 0) { os.write(buf, 0, len); } files += qName+entryName+"|"; in.close(); os.close(); } } } } zipFile.close(); return StringUtils.split(files,"|"); }catch(Exception e){ throw new HsException(HsErrorMsg.FILE_ERROR,"文件解压缩出错，文件："+zipFileName); } } /** * * @param zipFileName为需要解压的zip文件 * @param extPlace为解压后文件的存放路径 * @throws Exception */ public void UnZip(String zipFileName, String extPlace) throws HsException { try{ ZipFile zipFile = new ZipFile(zipFileName); Enumeration e = zipFile.getEntries(); ZipEntry zipEntry = null; while (e.hasMoreElements()) { zipEntry = (ZipEntry) e.nextElement(); String entryName = zipEntry.getName(); String names[] = entryName.split("/"); int length = names.length; String path = extPlace; for (int v = 0; v < length; v++) { if (v < length - 1) { path += names[v] + "/"; new File(path).mkdir(); }else { // 最后一个 if (entryName.endsWith("/")) { // 为目录,则创建文件夹 new File(extPlace + entryName).mkdir(); }else { InputStream in = zipFile.getInputStream(zipEntry); OutputStream os = new FileOutputStream(new File(extPlace + entryName)); byte[] buf = new byte[1024]; int len; while ( (len = in.read(buf)) > 0) { os.write(buf, 0, len); } in.close(); os.close(); }
} } } zipFile.close(); }catch(Exception e){ throw new HsException(HsErrorMsg.FILE_ERROR,"文件解压缩出错，文件："+zipFileName); } } public static void main(String args[]){ Zip zip = new Zip(); try { //zip.zip("D:\\ECLIPSETEST\\bots\\tamcx\\app/bots/infoDown/10001/20080920/1.zip", // "D:\\ECLIPSETEST\\bots\\tamcx\\app/bots/infoDown/10001/20080920/zip/"); } catch (Exception e) { // TODO 自动生成 catch 块 e.printStackTrace(); } }}
public class ZipReadWrite { public ZipReadWrite() { } /** * 功能：解压zip文件，解压文件存放在本压缩文件所在目录下 * * @param zipFileName */ public void ZipUnPack(String zipFileName) throws HsException { FileInputStream fin = null; ZipInputStream zin = null; DataInputStream din = null; FileOutputStream fout = null; try { String filePath = getFileDir(zipFileName); if(filePath == null){ throw new HsException(HsErrorMsg.ERR_DEFAULT,"文件路径名不合法！"); } fin = new FileInputStream(zipFileName); zin = new ZipInputStream(fin); din = new DataInputStream(zin); ZipEntry ze = null; ze = zin.getNextEntry(); File fi = null; while (ze != null) { String enName = ze.getName();// int length = (int) ze.getSize();// byte[] bt = new byte[length];// din.readFully(bt); fi = new File(filePath + enName); fout = new FileOutputStream(fi); IOUtils.copy(new DataInputStream(zin), fout);// fout.write(bt); fout.flush(); fout.close(); ze = zin.getNextEntry(); } } catch (Exception e) { e.printStackTrace(); throw new HsException(HsErrorMsg.ERR_DEFAULT, "文件解压缩出现异常！"); } finally { try { if (fin != null) { fin.close(); } if (zin != null) { zin.close(); } if (din != null) { din.close(); } } catch (IOException e) { // TODO 自动生成 catch 块 e.printStackTrace(); throw new HsException(HsErrorMsg.ERR_DEFAULT, "文件解压缩关闭出现异常！"); } } } /** * 功能：解压zip文件，解压文件存放在指定目录下 * * @param zipFileName * @param saveDir * 示例：e:/test/test2/ 或e:/test/test2 * @throws HsException */ public void ZipUnPack(String zipFileName, String saveDir) throws HsException { FileInputStream fin = null; ZipInputStream zin = null; DataInputStream din = null; FileOutputStream fout = null; try { String filePath = saveDir; String lastChar = saveDir.substring(saveDir.length() - 1, saveDir .length()); if (!(lastChar.equals("/") || lastChar.equals("\\"))) { filePath = saveDir + "/"; } File file = new File(saveDir); if (!file.isDirectory()) { file.mkdirs(); } fin = new FileInputStream(zipFileName); zin = new ZipInputStream(fin); din = new DataInputStream(zin); ZipEntry ze = null; ze = zin.getNextEntry(); File fi = null; while (ze != null) { String enName = ze.getName();// int length = (int) ze.getSize();// byte[] bt = new byte[length];// din.readFully(bt); fi = new File(filePath + enName); fout = new FileOutputStream(fi); IOUtils.copy(new DataInputStream(zin), fout);// fout.write(bt); fout.flush(); fout.close(); ze = zin.getNextEntry(); } } catch (Exception e) { e.printStackTrace(); throw new HsException(HsErrorMsg.ERR_DEFAULT, "文件解压缩出现异常！"); } finally { try { if (fin != null) { fin.close(); } if (zin != null) { zin.close(); } if (din != null) { din.close(); } } catch (IOException e) { // TODO 自动生成 catch 块 e.printStackTrace(); throw new HsException(HsErrorMsg.ERR_DEFAULT, "文件解压缩关闭出现异常！"); } } } /** * 功能：得到文件路径的目录名 * * @param filePath d:\dir\filename * @return d:\dir */ public String getFileDir(String filePath) { String dir = ""; int i = filePath.lastIndexOf("\\"); int j = filePath.lastIndexOf("/"); if (i > 0&&j==-1) { dir = filePath.substring(0, i + 1); } else if(j>0&&i==-1) { dir = filePath.substring(0, j + 1); }else if(i>j){ dir = filePath.substring(0, i + 1); }else if(j>i){ dir = filePath.substring(0, j + 1); } return dir; } public void ZipPack(String fileDir) throws HsException { FileOutputStream fout = null; DataOutputStream dout = null; FileInputStream fin2 = null; DataInputStream din2 = null; try { //去除路径最后的‘/’或者‘\’ String lastChar = fileDir.substring(fileDir.length()-1); if (lastChar.equals("/") || lastChar.equals("\\")) { fileDir = fileDir.substring(0,fileDir.length()-1); } int last = fileDir.lastIndexOf("/"); String dirName = null; if(last>=0){ dirName = fileDir.substring(last+1); }else{ last = fileDir.lastIndexOf("\\"); if(last>=0){ dirName = fileDir.substring(last+1); }else { throw new HsException(HsErrorMsg.ERR_DEFAULT,"文件目录不合法！"); } } //得到该目录的同名目录 int lastIndex = fileDir.lastIndexOf("/"); if(lastIndex<0){ lastIndex = fileDir.lastIndexOf("\\"); } String creatDir = fileDir.substring(0,lastIndex); fout = new FileOutputStream(creatDir+"/"+dirName+".zip"); File file = new File(fileDir); File[] files = file.listFiles(); ZipOutputStream zout = new ZipOutputStream(fout); zout.setMethod(ZipOutputStream.DEFLATED); dout = new DataOutputStream(zout); for (int i = 0; i < files.length; i++) { File fi2 = files[i]; fin2 = new FileInputStream(fi2); zout.putNextEntry(new ZipEntry(fi2.getName())); byte[] bt = new byte[fin2.available()]; din2 = new DataInputStream(fin2); din2.readFully(bt); dout.write(bt); fin2.close(); din2.close(); } dout.flush(); dout.close(); zout.close(); } catch (Exception e) { e.printStackTrace(); throw new HsException(HsErrorMsg.ERR_DEFAULT, "压缩zip包时出错！"); } finally { try { if (fout != null) { fout.close(); } if (dout != null) { dout.close(); } } catch (IOException e) { // TODO 自动生成 catch 块 e.printStackTrace(); throw new HsException(HsErrorMsg.ERR_DEFAULT, "文件压缩关闭出现异常！"); } } } }
public class RaR { /* * cmd 压缩与解压缩命令 */ private static String rarCmd = "C:\\Program Files\\WinRAR\\Rar.exe a "; private static String unrarCmd = "C:\\Program Files\\WinRAR\\UnRar x "; /** * 将1个文件压缩成RAR格式 * rarName 压缩后的压缩文件名(不包含后缀) * fileName 需要压缩的文件名(必须包含路径) * destDir 压缩后的压缩文件存放路径 */ public static void RARFile(String rarName, String fileName, String destDir) { rarCmd += destDir + rarName + ".rar " + fileName; try { Runtime rt = Runtime.getRuntime(); Process p = rt.exec(rarCmd); }catch(Exception e) { System.out.println(e.getMessage()); } } /** * 将1个RAR文件解压 * rarFileName 需要解压的RAR文件(必须包含路径信息以及后缀) * destDir 解压后的文件放置目录 */ public static void unRARFile(String rarFileName, String destDir) { unrarCmd += rarFileName + " " + destDir; try { Runtime rt = Runtime.getRuntime(); Process p = rt.exec(unrarCmd); } catch (Exception e) { System.out.println(e.getMessage()); } } }
Java 压缩文件
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