根據(jù)輸入時(shí)間段備份壓縮日志文件為tar包，

ant-1.7.1.jar

import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; import java.util.zip.GZIPOutputStream;import org.apache.tools.tar.TarEntry; import org.apache.tools.tar.TarOutputStream;public class Test {//不能對(duì)每層都包含文件和目錄的多層次目錄結(jié)構(gòu)打包public static void CompressedFiles_Gzip(String folderPath, String targzipFilePath) { File srcPath =new File(folderPath); int length=srcPath.listFiles().length; byte[] buf = new byte[1024]; //設(shè)定讀入緩沖區(qū)尺寸 File[] files = srcPath.listFiles(); try { //建立壓縮文件輸出流 FileOutputStream fout=new FileOutputStream(targzipFilePath); //建立tar壓縮輸出流 TarOutputStream tout=new TarOutputStream(fout); for(int i=0;i<length;i++) { String filename=srcPath.getPath()+File.separator+files[i].getName(); //打開(kāi)需壓縮文件作為文件輸入流 FileInputStream fin=new FileInputStream(filename); //filename是文件全路徑 TarEntry tarEn=new TarEntry(files[i]); //此處必須使用new TarEntry(File file); //tarEn.setName(files[i].getName()); //此處需重置名稱，默認(rèn)是帶全路徑的，否則打包后會(huì)帶全路徑 tout.putNextEntry(tarEn); int num; while ((num=fin.read(buf)) != -1) { tout.write(buf,0,num); } tout.closeEntry(); fin.close(); }tout.close(); fout.close(); //建立壓縮文件輸出流 FileOutputStream gzFile=new FileOutputStream(targzipFilePath+".gz"); //建立gzip壓縮輸出流 GZIPOutputStream gzout=new GZIPOutputStream(gzFile); //打開(kāi)需壓縮文件作為文件輸入流 FileInputStream tarin=new FileInputStream(targzipFilePath); //targzipFilePath是文件全路徑 int len; while ((len=tarin.read(buf)) != -1) { gzout.write(buf,0,len); } gzout.close(); gzFile.close(); tarin.close(); }catch(FileNotFoundException e) { System.out.println(e); }catch(IOException e) { System.out.println(e); } }//循環(huán)遍歷目錄結(jié)構(gòu)中的文件并添加至tar的輸出流public static void addFiles(TarOutputStream tout,String folderPath) { File srcPath =new File(folderPath); int length=srcPath.listFiles().length; byte[] buf = new byte[1024]; //設(shè)定讀入緩沖區(qū)尺寸 File[] files = srcPath.listFiles(); try { for(int i=0;i<length;i++) { if(files[i].isFile()){System.out.println("file:"+files[i].getName());String filename=srcPath.getPath()+File.separator+files[i].getName(); //打開(kāi)需壓縮文件作為文件輸入流 FileInputStream fin=new FileInputStream(filename); //filename是文件全路徑 TarEntry tarEn=new TarEntry(files[i]); //此處必須使用new TarEntry(File file); //System.out.println("--------"+files[i].getParentFile().getName());tarEn.setName(files[i].getParentFile().getName()+"\\"+files[i].getName()); //此處需重置名稱，默認(rèn)是帶全路徑的，否則打包后會(huì)帶全路徑 tout.putNextEntry(tarEn); int num; while ((num=fin.read(buf)) != -1) { tout.write(buf,0,num); } tout.closeEntry(); fin.close(); }else{System.out.println(files[i].getPath());addFiles(tout,files[i].getPath());}} }catch(FileNotFoundException e) { System.out.println(e); }catch(IOException e) { System.out.println(e); } }//生成tar并壓縮成tar.gzpublic static void WriteToTarGzip(String folderPath, String targzipFilePath) { byte[] buf = new byte[1024]; //設(shè)定讀入緩沖區(qū)尺寸 try { //建立壓縮文件輸出流 FileOutputStream fout=new FileOutputStream(targzipFilePath); //建立tar壓縮輸出流 TarOutputStream tout=new TarOutputStream(fout); addFiles(tout,folderPath); tout.close();fout.close(); //建立壓縮文件輸出流 FileOutputStream gzFile=new FileOutputStream(targzipFilePath+".gz"); //建立gzip壓縮輸出流 GZIPOutputStream gzout=new GZIPOutputStream(gzFile); //打開(kāi)需壓縮文件作為文件輸入流 FileInputStream tarin=new FileInputStream(targzipFilePath); //targzipFilePath是文件全路徑 int len; while ((len=tarin.read(buf)) != -1) { gzout.write(buf,0,len); } gzout.close(); gzFile.close(); tarin.close(); }catch(FileNotFoundException e) { System.out.println(e); }catch(IOException e) { System.out.println(e); } File tarfile=new File(targzipFilePath);tarfile.delete();}//循環(huán)遍歷目錄結(jié)構(gòu)中的文件并添加至tar的輸出流(支持多個(gè)文件夾)public static void addFilesAll(TarOutputStream tout,File[] sources) { File srcPath =null; //File[] sources = new File[] {new File("D:\\test\\20160603"), new File("D:\\test\\20160302")};try { for(int k=0;k<sources.length;k++){srcPath=sources[k];int length=srcPath.listFiles().length; byte[] buf = new byte[1024]; //設(shè)定讀入緩沖區(qū)尺寸 File[] files = srcPath.listFiles(); for(int i=0;i<length;i++) { if(files[i].isFile()){//System.out.println("file:"+files[i].getName());String filename=srcPath.getPath()+File.separator+files[i].getName(); //打開(kāi)需壓縮文件作為文件輸入流 FileInputStream fin=new FileInputStream(filename); //filename是文件全路徑 TarEntry tarEn=new TarEntry(files[i]); //此處必須使用new TarEntry(File file); //System.out.println("--------"+files[i].getParentFile().getName());tarEn.setName(files[i].getParentFile().getName()+"\\"+files[i].getName()); //此處需重置名稱，默認(rèn)是帶全路徑的，否則打包后會(huì)帶全路徑 tout.putNextEntry(tarEn); int num; while ((num=fin.read(buf)) != -1) { tout.write(buf,0,num); } tout.closeEntry(); fin.close(); }else{System.out.println(files[i].getPath());addFiles(tout,files[i].getPath());}} }}catch(FileNotFoundException e) { System.out.println(e); }catch(IOException e) { System.out.println(e); } }//生成tar并壓縮成tar.gzpublic static void WriteToTarGzipAll(String targzipFilePath,File[] sources) { byte[] buf = new byte[1024]; //設(shè)定讀入緩沖區(qū)尺寸 try { //建立壓縮文件輸出流 FileOutputStream fout=new FileOutputStream(targzipFilePath); //建立tar壓縮輸出流 TarOutputStream tout=new TarOutputStream(fout); addFilesAll(tout,sources); tout.close();fout.close(); //建立壓縮文件輸出流 FileOutputStream gzFile=new FileOutputStream(targzipFilePath+".gz"); //建立gzip壓縮輸出流 GZIPOutputStream gzout=new GZIPOutputStream(gzFile); //打開(kāi)需壓縮文件作為文件輸入流 FileInputStream tarin=new FileInputStream(targzipFilePath); //targzipFilePath是文件全路徑 int len; while ((len=tarin.read(buf)) != -1) { gzout.write(buf,0,len); } gzout.close(); gzFile.close(); tarin.close(); }catch(FileNotFoundException e) { System.out.println(e); }catch(IOException e) { System.out.println(e); } File tarfile=new File(targzipFilePath);tarfile.delete();}//判斷文件夾是否存在public static boolean isFile(String path){boolean flag=true;File file = new File(path); //判斷文件夾是否存在,如果不存在則創(chuàng)建文件夾 if (!file.exists()) { flag=false;}return flag;}public String runFileTar(String indir,String outdir,String sdate,String edate,int jg){ // String indir="D:\\test\\"; // String outdir="D:\\test\\"; // String sdate="20160301"; // String edate="20160905"; // int jg=2; //間隔月份String returnFlag="------執(zhí)行成功----------";Calendar c = Calendar.getInstance();//獲得一個(gè)日歷的實(shí)例SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");try {Date sd=sdf.parse(sdate);Date ed=sdf.parse(edate);if (ed.getTime() < sd.getTime()) { //比較日期大小returnFlag="------開(kāi)始時(shí)間大于結(jié)束時(shí)間----------";}else{File[] sources =null;//遍歷總時(shí)間while(ed.getTime() > sd.getTime()){c.setTime(sd);//設(shè)置日歷時(shí)間c.add(Calendar.MONTH,jg);//在日歷的月份上增加jg個(gè)月Date mthdate=c.getTime();c.setTime(mthdate); int day2=c.get(Calendar.DATE); c.set(Calendar.DATE,day2-1);mthdate=c.getTime();if(mthdate.getTime()>ed.getTime()){mthdate=ed;}Date mthfile=mthdate;Date mthdate2=mthdate;int fileCount=0;while(sd.getTime() <= mthdate2.getTime()){ //遍歷jg個(gè)月內(nèi)的文件夾//判斷文件夾是否存在if(isFile(indir+sdf.format(mthdate2))){fileCount=fileCount+1;}//日期減一天 c.setTime(mthdate2); int day=c.get(Calendar.DATE); c.set(Calendar.DATE,day-1);mthdate2=c.getTime();} if(fileCount>0){sources = new File[fileCount];while(sd.getTime() <= mthdate.getTime()){ //遍歷jg個(gè)月內(nèi)的文件夾//判斷文件夾是否存在if(isFile(indir+sdf.format(mthdate.getTime()))){File file=new File(indir+sdf.format(mthdate));fileCount=fileCount-1;sources[fileCount]=file;}//日期減一天 c.setTime(mthdate); int day=c.get(Calendar.DATE); c.set(Calendar.DATE,day-1);mthdate=c.getTime();} WriteToTarGzipAll(outdir+sdf.format(sd)+"-"+sdf.format(mthfile)+".tar",sources);}mthdate=mthdate2;c.setTime(sd);//設(shè)置日歷時(shí)間c.add(Calendar.MONTH,jg);//在日歷的月份上增加jg個(gè)月sd=c.getTime();}}} catch (Exception e) {e.printStackTrace();returnFlag="------運(yùn)行出錯(cuò)----------";}finally{System.out.println("finished");}return returnFlag;}public static void main(String[] args){//方法一：對(duì)于目錄中只含文件的文件夾打包并壓縮//CompressedFiles_Gzip("D:\\test\\20160302","D:\\test\\20160603.tar");//方法二：對(duì)目錄中既含有文件又含有遞歸目錄的文件夾打包//WriteToTarGzip("D:\\test\\20160603","D:\\test\\20160603.tar"); // File[] str = new File[2]; // str[0]=new File("D:\\test\\20160603"); // str[1] = new File("D:\\test\\20160302");//支持多個(gè)文件夾//File[] sources = new File[] {new File("D:\\test\\20160603"), new File("D:\\test\\20160302"), new File("D:\\test\\2016080633")};//WriteToTarGzipAll("D:\\test\\20160603.tar",sources); String indir="D:\\test\\";String outdir="D:\\test\\";String sdate="20160220";String edate="20170905";int jg=20; //間隔月份 Test test=new Test();String returnFlag=test.runFileTar(indir, outdir, sdate, edate, jg);} }

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轉(zhuǎn)載于:https://www.cnblogs.com/Allen0603/p/5764967.html

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