java.util.zip.DataFormatException: invalid distance too far back,afaroffdistance
解壓 war/jar檔案時出現以下錯誤:
java.util.zip.ZipException: invalid distance too far back
at org.apache.commons.compress.archivers.zip.ZipArchiveInputStream.readFromInflater(ZipArchiveInputStream.java:478)
at org.apache.commons.compress.archivers.zip.ZipArchiveInputStream.readDeflated(ZipArchiveInputStream.java:443)
at org.apache.commons.compress.archivers.zip.ZipArchiveInputStream.read(ZipArchiveInputStream.java:384)
at java.io.InputStream.read(Unknown Source)
at org.apache.commons.compress.utils.IOUtils.copy(IOUtils.java:75)
at org.apache.commons.compress.utils.IOUtils.copy(IOUtils.java:56)
at com.xunge.AESFileEncoder$1.run(AESFileEncoder.java:149)
at java.lang.Thread.run(Unknown Source)
Caused by: java.util.zip.DataFormatException: invalid distance too far back
at java.util.zip.Inflater.inflateBytes(Native Method)
at java.util.zip.Inflater.inflate(Unknown Source)
at org.apache.commons.compress.archivers.zip.ZipArchiveInputStream.readFromInflater(ZipArchiveInputStream.java:476)
… 7 more
相關代碼:
PipedInputStream pin = new PipedInputStream(); PipedOutputStream pout = new PipedOutputStream(pin); new Thread(new Runnable() { public void run() { try { IOUtils.copy(ais, pout); pout.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } }).start(); ArchiveInputStream inJar = new ArchiveStreamFactory() .createArchiveInputStream(ArchiveStreamFactory.JAR, pin);
以上代碼是沒有問題,如果使用 pin 的代碼和 pin 的聲明代碼中間隔了太多的代碼就會產生此異常。具體沒有做實驗,也可能是有邏輯判斷語句的原因。