src/test/java/osm/jp/gpx/UnZip.java

   1 package osm.jp.gpx;
   2 import java.io.File;
   3 import java.io.FileInputStream;
   4 import java.io.FileOutputStream;
   5 import java.io.IOException;
   6 import java.util.zip.ZipEntry;
   7 import java.util.zip.ZipInputStream;
   8
   9 public class UnZip {
  10
  11     /**
  12      * Zipファイルを展開します
  13      * @param aZipFile zipファイル
  14      * @param aOutDir  出力先ディレクトリ
  15      * @throws java.io.IOException
  16      */
  17     public static void decode(File aZipFile, String aOutDir) throws IOException {
  18         FileInputStream  fileIn  = null;
  19         FileOutputStream fileOut = null;
  20         ZipInputStream zipIn = null;
  21
  22         try {
  23             File outDir = new File(aOutDir);
  24             outDir.mkdirs();
  25
  26             fileIn = new FileInputStream(aZipFile);
  27             zipIn = new ZipInputStream(fileIn);
  28
  29             ZipEntry entry = null;
  30             while ((entry = zipIn.getNextEntry()) != null) {
  31                 if (entry.isDirectory()) {
  32                     String relativePath = entry.getName();
  33                     outDir = new File(outDir, relativePath);
  34                     outDir.mkdirs();
  35                 }
  36                 else {
  37                     String relativePath = entry.getName();
  38                     File outFile = new File( outDir, relativePath );
  39
  40                     File parentFile = outFile.getParentFile();
  41                     parentFile.mkdirs();
  42
  43                     fileOut = new FileOutputStream( outFile );
  44
  45                     byte[] buf = new byte[ 256 ];
  46                     int size = 0;
  47                     while ((size = zipIn.read(buf)) > 0){
  48                         fileOut.write(buf, 0, size);
  49                     }
  50                     fileOut.close();
  51                     fileOut = null;
  52                 }
  53                 zipIn.closeEntry();
  54             }
  55         }
  56         catch (IOException e) {
  57             e.printStackTrace();
  58         }
  59         finally {
  60             if (fileIn != null) {
  61                 try {
  62                     fileIn.close();
  63                 }
  64                 catch (IOException e) {}
  65             }
  66             if (fileOut != null) {
  67                 try {
  68                     fileOut.close();
  69                 }
  70                 catch(IOException e) {}
  71             }
  72             zipIn.close();
  73         }
  74     }
  75 }