!!!Java Zipファイルの処理 [Java][Javaコード片] !!例 !参照 import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.util.zip.ZipEntry; import java.util.zip.ZipInputStream; public abstract class LogAnalyzer{ // ファイルの配列を処理する public void analyze(File[] logs) { try { for (File log : logs) { if (log.getName().endsWith("zip")) { analyzeZipFile(log); } else { analyzeTextFile(log); } } } catch (Exception e) { //TODO e.printStackTrace(); } } // Zipファイルの場合 private void analyzeZipFile(File zippedLog) throws IOException { ZipInputStream zin = new ZipInputStream(new FileInputStream(zippedLog)); ZipEntry entry = null; while ((entry = zin.getNextEntry()) != null) { System.out.println("**********" + entry.getName()); analyze(zin); zin.closeEntry(); } zin.close(); } // テキストファイルの場合 private void analyzeTextFile(File textFile) throws IOException { FileInputStream fis = new FileInputStream(textFile); analyze(fis); fis.close(); } // ログの処理 public void analyze(InputStream in) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(in)); String line = null; while ((line = br.readLine()) != null) { System.out.println(line); // ログの処理 } } } !圧縮 // アーカイブ対象ファイル格納 Key:ファイル名、Value:対象ファイル Map> zipFileMap = new HashMap<>(); : for(Map.Entry> zipFileEntity : zipFileMap.entrySet()) { File zipFile = new File(zipFileEntity.getKey()); List zipContais = zipFileEntity.getValue(); try(ZipOutputStream zout = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(zipFile)))) { byte[] buf = new byte[1024]; for (File zipContain : zipContais) { ZipEntry zipEntry = new ZipEntry(zipContain.getName()); zout.putNextEntry(zipEntry); try(InputStream is = new BufferedInputStream(new FileInputStream(zipContain))) { @SuppressWarnings("unused") int size = 0; while ((size = is.read(buf)) != -1) { zout.write(buf); } } } for (File zipContain : zipContais) { if (zipContain.delete()) { delFileCnt++; } } } catch (FileNotFoundException e) { new BatchException(e.getMessage(), e); } catch (IOException e) { new BatchException(e.getMessage(), e); } }