| 提交 | 用户 | 时间 | ||
| 58d006 | 1 | package com.mandi.servlet.file.impl; |
| A | 2 | |
| 3 | import java.io.BufferedInputStream; | |
| 4 | import java.io.File; | |
| 5 | import java.io.FileInputStream; | |
| 6 | import java.io.FileNotFoundException; | |
| 7 | import java.io.FileOutputStream; | |
| 8 | import java.io.IOException; | |
| 9 | import java.nio.charset.Charset; | |
| 10 | import java.nio.file.Files; | |
| 11 | import java.nio.file.Paths; | |
| 12 | import java.util.Enumeration; | |
| 13 | import java.util.zip.CRC32; | |
| 14 | import java.util.zip.CheckedOutputStream; | |
| 15 | import java.util.zip.ZipEntry; | |
| 16 | import java.util.zip.ZipFile; | |
| 17 | import java.util.zip.ZipOutputStream; | |
| 18 | ||
| 19 | ||
| 20 | import com.mandi.servlet.file.Zipfile; | |
| 21 | ||
| 22 | /** | |
| 23 | * @author mengly | |
| 24 | * @version 创建时间：2015年11月6日 下午7:00:20 | |
| 25 | * 类说明 | |
| 26 | */ | |
| 27 | ||
| 28 | public class Zipfileimpl implements Zipfile { | |
| 29 | private int buffersize=1024; | |
| 30 | @Override | |
| 31 | public File zip(String path,String dest) { | |
| 32 | File sf=new File(path); | |
| 33 | if(!sf.exists()) | |
| 34 | return null; | |
| 35 | this.zip(sf, dest); | |
| 36 | return null; | |
| 37 | } | |
| 38 | private void compress(File f,ZipOutputStream zos,String pathbase) | |
| 39 | { | |
| 40 | if(f.isDirectory()) | |
| 41 | { | |
| 42 | File[] files = f.listFiles(); | |
| 43 | if(files.length<1) | |
| 44 | { | |
| 45 | ZipEntry ze=new ZipEntry(pathbase + f.getName()+ File.separator); | |
| 46 | try { | |
| 47 | zos.putNextEntry(ze); | |
| 48 | zos.closeEntry(); | |
| 49 | } catch (IOException e) { | |
| 50 | e.printStackTrace(); | |
| 51 | } | |
| 52 | }else{ | |
| 53 | for (File file : files) { | |
| 54 | compress(file, zos,f.getName()+ File.separator); | |
| 55 | } | |
| 56 | } | |
| 57 | }else if(f.isFile()){ | |
| 58 | ZipEntry ze=new ZipEntry(pathbase + f.getName()); | |
| 59 | BufferedInputStream bis=null; | |
| 60 | try { | |
| 61 | zos.putNextEntry(ze); | |
| 62 | int count; | |
| 63 | bis=new BufferedInputStream(new FileInputStream(f)); | |
| 64 | byte data[]=new byte[buffersize]; | |
| 65 | while((count=bis.read(data, 0, buffersize))!=-1) | |
| 66 | { | |
| 67 | zos.write(data,0,count); | |
| 68 | } | |
| 69 | } catch (IOException e) { | |
| 70 | e.printStackTrace(); | |
| 71 | }finally{ | |
| 72 | try { | |
| 73 | bis.close(); | |
| 74 | zos.closeEntry(); | |
| 75 | } catch (IOException e) { | |
| 76 | e.printStackTrace(); | |
| 77 | } | |
| 78 | } | |
| 79 | } | |
| 80 | ||
| 81 | } | |
| 82 | ||
| 83 | @Override | |
| 84 | public File zip(File file,String dest) { | |
| 85 | if(!file.exists()) | |
| 86 | return null; | |
| 87 | ZipOutputStream zos=null; | |
| 88 | try { | |
| 89 | File df=new File(dest); | |
| 90 | CheckedOutputStream cos=new CheckedOutputStream(new FileOutputStream(df), new CRC32()); | |
| 91 | zos=new ZipOutputStream(cos); | |
| 92 | if(file.isFile()) | |
| 93 | compress(file,zos,""); | |
| 94 | else{ | |
| 95 | File[] fs=file.listFiles(); | |
| 96 | for (File file2 : fs) { | |
| 97 | compress(file2,zos,""); | |
| 98 | } | |
| 99 | } | |
| 100 | return df; | |
| 101 | } catch (FileNotFoundException e) { | |
| 102 | e.printStackTrace(); | |
| 103 | }finally{ | |
| 104 | try { | |
| 105 | zos.close(); | |
| 106 | } catch (IOException e) { | |
| 107 | e.printStackTrace(); | |
| 108 | } | |
| 109 | } | |
| 110 | return null; | |
| 111 | } | |
| 112 | ||
| 113 | @Override | |
| 114 | public File unzip(String path,String dest) { | |
| 115 | File f=new File(path); | |
| 116 | if(!f.exists()) | |
| 117 | return null; | |
| 118 | this.unzip(f, dest); | |
| 119 | return null; | |
| 120 | } | |
| 121 | ||
| 122 | @Override | |
| 123 | public File unzip(File file,String dest) { | |
| 124 | File destfile=new File(dest); | |
| 125 | if(!destfile.exists()||!destfile.isDirectory()) | |
| 126 | destfile.mkdirs(); | |
| 127 | if(!dest.endsWith(File.separator)) | |
| 128 | { | |
| 129 | dest=dest+File.separator; | |
| 130 | } | |
| 131 | ZipFile zf=null; | |
| 132 | try{ | |
| 133 | zf=new ZipFile(file,Charset.forName(System.getProperty("sun.jnu.encoding"))); | |
| 134 | Enumeration<ZipEntry> enums=(Enumeration<ZipEntry>) zf.entries(); | |
| 135 | while(enums.hasMoreElements()) | |
| 136 | { | |
| 137 | ZipEntry zee=enums.nextElement(); | |
| 138 | if(zee.isDirectory()) | |
| 139 | { | |
| 140 | String entryname=zee.getName(); | |
| 141 | String tempname=dest+entryname.substring(0,entryname.length()-1); | |
| 142 | File f = new File(tempname); | |
| 143 | if (!f.exists()||!f.isDirectory()) | |
| 144 | f.mkdirs(); | |
| 145 | }else{ | |
| 146 | Files.copy(zf.getInputStream(zee), Paths.get(dest+zee.getName())); | |
| 147 | } | |
| 148 | } | |
| 149 | ||
| 150 | ||
| 151 | }catch(Exception e){ | |
| 152 | e.printStackTrace(); | |
| 153 | }finally{ | |
| 154 | try { | |
| 155 | zf.close(); | |
| 156 | } catch (IOException e) { | |
| 157 | e.printStackTrace(); | |
| 158 | } | |
| 159 | } | |
| 160 | ||
| 161 | return null; | |
| 162 | } | |
| 163 | ||
| 164 | } | |
