解压.zip,.tar.gz文件到指定目录，重命名文件
1.解压文件到指定目录
/** * 解压文件到指定目录 * zipFile:要解压的文件 * descDir：解压到哪个文件 * */ @SuppressWarnings("rawtypes") public static void unZipFiles(File zipFile,String descDir)throws IOException { File pathFile = new File(descDir); if(!pathFile.exists()) { pathFile.mkdirs(); } //解决zip文件中有中文目录或者中文文件 ZipFile zip = new ZipFile(zipFile, Charset.forName("GBK")); for(Enumeration entries = zip.entries(); entries.hasMoreElements();) { ZipEntry entry = (ZipEntry)entries.nextElement(); String zipEntryName = entry.getName(); InputStream in = zip.getInputStream(entry); String outPath = (descDir+zipEntryName).replaceAll("\\*", "/");; //判断路径是否存在,不存在则创建文件路径 File file = new File(outPath.substring(0, outPath.lastIndexOf('/'))); if(!file.exists()) { file.mkdirs(); } //判断文件全路径是否为文件夹,如果是上面已经上传,不需要解压 if(new File(outPath).isDirectory()) { continue; } //输出文件路径信息 System.out.println(outPath); OutputStream out = new FileOutputStream(outPath); byte[] buf1 = new byte[1024]; int len; while((len=in.read(buf1))>0) { out.write(buf1,0,len); } in.close(); out.close(); } System.out.println("******************解压完毕********************"); }
解压tar.gz 文件
package com.hou; import java.io.BufferedInputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.OutputStream; import java.util.zip.GZIPInputStream; import org.apache.tools.tar.TarEntry; import org.apache.tools.tar.TarInputStream; /** * 解压tar.gz 文件 * ClassName: Test01 * @Description: TODO * @author HJJ * @date 2018年10月17日 */ public class Test01 { public static void main(String[] args) { File file=new File("D:/home/app/data/tiantai/new/pred_2018-10-15.tar.gz"); String str="D:/home/app/data/tiantai/new/"; try { unTarGz(file,str); System.out.println("解压成功"); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } //------------------------------------------------------------------------------------------------------ /** * 解压tar.gz 文件 * @param file 要解压的tar.gz文件对象 * @param outputDir 要解压到某个指定的目录下 * @throws IOException */ public static void unTarGz(File file,String outputDir) throws IOException{ TarInputStream tarIn = null; try{ tarIn = new TarInputStream(new GZIPInputStream( new BufferedInputStream(new FileInputStream(file))), 1024 * 2); createDirectory(outputDir,null);//创建输出目录 TarEntry entry = null; while( (entry = tarIn.getNextEntry()) != null ){ if(entry.isDirectory()){//是目录 entry.getName(); createDirectory(outputDir,entry.getName());//创建空目录 }else{//是文件 File tmpFile = new File(outputDir + "/" + entry.getName()); createDirectory(tmpFile.getParent() + "/",null);//创建输出目录 OutputStream out = null; try{ out = new FileOutputStream(tmpFile); int length = 0; byte[] b = new byte[2048]; while((length = tarIn.read(b)) != -1){ out.write(b, 0, length); } }catch(IOException ex){ throw ex; }finally{ if(out!=null) out.close(); } } } }catch(IOException ex){ throw new IOException("解压归档文件出现异常",ex); } finally{ try{ if(tarIn != null){ tarIn.close(); } }catch(IOException ex){ throw new IOException("关闭tarFile出现异常",ex); } } } /** * 构建目录 * @param outputDir * @param subDir */ public static void createDirectory(String outputDir,String subDir){ File file = new File(outputDir); if(!(subDir == null || subDir.trim().equals(""))){//子目录不为空 file = new File(outputDir + "/" + subDir); } if(!file.exists()){ if(!file.getParentFile().exists()) file.getParentFile().mkdirs(); file.mkdirs(); } } }
3.解压指定目录下的zip文件
/** * 解压指定目录下的zip文件 * @param checkPath 检测目录，先从缓存中取，如果缓存中不存在，再从配置文件中提取 * @param fileName 待解压的zip文件 * @throws Exception */ private static void unzip(String checkPath,String fileName) throws Exception { if (checkPath.startsWith("~")) { checkPath = System.getProperty("user.home")+ checkPath.substring(1); } // final String currentPath = checkPath; final String currentPath = "D:/home/app/data/tiantai/new/"; // String fileRoot = checkPath + File.separator + fileName; //zip文件路径 String fileRoot = "D:/home/app/data/tiantai/new/QUNAR_ONE_COMMON_PRYPAY_1539141468602.zip"; //zip文件路径 //System.out.println("解压的zip文件 fileRoot:" + fileRoot); System.out.println("解压的zip文件 fileRoot:" + fileRoot); FileSystem fs = FileSystems.newFileSystem(Paths.get(fileRoot),null); Files.walkFileTree(fs.getPath("/"),new SimpleFileVisitor<Path>(){ //遍历文件系统时，可获取文件属性 /** * Invoked for a file in a directory. * <p> * <p> Unless overridden, this method returns {@link FileVisitResult#CONTINUE * CONTINUE}. * * @param file * @param attrs */ @Override public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException { Path destPath = Paths.get(currentPath,file.toString()); Files.deleteIfExists(destPath);//如果目标文件已经存在，则删除 Files.createDirectories(destPath.getParent());//创建文件的父目录，不管是文件还是目录 Files.move(file, destPath); return FileVisitResult.CONTINUE; } }); fs.close();//关闭文件系统 //文件解压成功后,删除zip文件 File delZipFile = new File(fileRoot); if(delZipFile.exists() && delZipFile.isFile()){ boolean d = delZipFile.delete(); if(d){ // System.out.println(fileRoot + " 文件已删除..."); System.out.println((fileRoot + " 文件已删除...")); } } }
4.
public static void Decompressing2() throws IOException { // String path = "D:/home/app/data/tiantai/new/"; String path = "D:/home/app/data/tiantai/new/"; ZipEntry zipEntry = null; try { // ZipInputStream读取压缩文件 FileInputStream file=new FileInputStream(new File(path+"QUNAR_ONE_COMMON_PRYPAY_1539679543536.zip")); // ZipFile zipFile = new ZipFile(new File(path+"QUNAR_ONE_COMMON_PRYPAY_1539141468602.zip"),Charset.forName("gbk")) ; ZipInputStream zipInputStream = new ZipInputStream(file); // 写入到缓冲流中 BufferedInputStream bufferedInputStream = new BufferedInputStream(zipInputStream); File fileOut = null; // 读取压缩文件中的一个文件 // zipEntry = zipInputStream.getNextEntry(); while ((zipEntry = zipInputStream.getNextEntry()) != null) { // 若当前zipEntry是一个文件夹 if (zipEntry.isDirectory()) { fileOut = new File(path + "//" +zipEntry.getName()); // 在指定路径下创建文件夹 if (!fileOut.exists()) { fileOut.mkdirs(); } //若是文件 } else { // 原文件名与指定路径创建File对象(解压后文件的对象) fileOut = new File(path, zipEntry.getName()); try( FileOutputStream fileOutputStream = new FileOutputStream(fileOut); BufferedOutputStream bufferedOutputStream = new BufferedOutputStream(fileOutputStream);){ //将文件写入到指定file中 int b = 0; while ((b = bufferedInputStream.read()) != -1) { bufferedOutputStream.write(b); } }catch (Exception e) { e.printStackTrace(); } } } } catch (Exception e) { e.printStackTrace(); } }
5
readByZipInputStream("D:/home/app/data/tiantai/new/QUNAR_ONE_COMMON_PRYPAY_1539065367654.zip", "d:/");
public static void readByZipInputStream(String archive, String decompressDir)
throws FileNotFoundException, IOException {
BufferedInputStream bi;
ZipFile zf = new ZipFile(archive, Charset.forName("gbk"));//支持中文
Enumeration e = zf.entries();
while (e.hasMoreElements()) {
ZipEntry ze2 = (ZipEntry) e.nextElement();
String entryName = ze2.getName();
String path = decompressDir + "/" + entryName;
if (ze2.isDirectory()) {
System.out.println("正在创建解压目录 - " + entryName);
File decompressDirFile = new File(path);
if (!decompressDirFile.exists()) {
decompressDirFile.mkdirs();
}
} else {
System.out.println("正在创建解压文件 - " + entryName);
String fileDir = path.substring(0, path.lastIndexOf("/"));
File fileDirFile = new File(fileDir);
if (!fileDirFile.exists()) {
fileDirFile.mkdirs();
}
BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(
decompressDir + "/" + entryName));
bi = new BufferedInputStream(zf.getInputStream(ze2));
byte[] readContent = new byte[1024];
int readCount = bi.read(readContent);
while (readCount != -1) {
bos.write(readContent, 0, readCount);
readCount = bi.read(readContent);
}
bos.close();
}
}
zf.close();
}
6.修改文件名
/** * 通过文件路径直接修改文件名 * @param filePath 需要修改的文件的完整路径 * @param newFileName 需要修改的文件的名称 * @return */ public static String FixFileName(String filePath, String newFileName) { File f = new File(filePath); if (!f.exists()) { // 判断原文件是否存在 return null; } newFileName = newFileName.trim(); if ("".equals(newFileName) || newFileName == null) // 文件名不能为空 return null; String newFilePath = null; if (f.isDirectory()) { // 判断是否为文件夹 newFilePath = filePath.substring(0, filePath.lastIndexOf("/")) + "/" + newFileName; } else { newFilePath = filePath.substring(0, filePath.lastIndexOf("/"))+ "/" + newFileName ; } File nf = new File(newFilePath); if (!f.exists()) { // 判断需要修改为的文件是否存在（防止文件名冲突） return null; } try { f.renameTo(nf); // 修改文件名 } catch(Exception err) { err.printStackTrace(); return null; } return newFilePath; }
