Java - 意外的ZipException（意想不到的錯誤類型）

Question

我試圖創建一個方法，只需一步就可以將多個zip壓縮文件合併到eachother中。該代碼看起來非常好，它應該工作。但是當我運行它時，我得到了一個非常奇怪的例外：

java.lang.RuntimeException: Unexpected java.util.zip.ZipException ("invalid entry compressed size (expected 1506 but got 1507 bytes)") 
(only duplicate entry execptions are expected!) 
    at io.brainstone.github.installer.FileUtils.makeNewZipFromInputStreamList(FileUtils.java:309) 
    at io.brainstone.github.installer.Main.startInstalling(Main.java:224) 
    at io.brainstone.github.installer.Window$3$1.run(Window.java:183) 
Caused by: java.util.zip.ZipException: invalid entry compressed size (expected 1506 but got 1507 bytes) 
    at java.util.zip.ZipOutputStream.closeEntry(Unknown Source) 
    at java.util.zip.ZipOutputStream.putNextEntry(Unknown Source) 
    at io.brainstone.github.installer.FileUtils.makeNewZipFromInputStreamList(FileUtils.java:300) 
    ... 2 more 

異常是由我自己的代碼引發的。這告訴我發生了意外的異常。預計只有duplicate entry例外。 （這是一招我用我的條目覆蓋含義是在列表的最後歸檔具有最高優先級擁有的文件。）

要明確的事情了，這是我的代碼：

public static void makeNewZipFromInputStreamList(File outputFile, 
      ArrayList<InputStream> inputStreamList, 
      ArrayList<String> includeList, ArrayList<String> excludeList) 
      throws IOException, IllegalArgumentException { 
     final int sizeOfLists[] = new int[] { inputStreamList.size(), 
       includeList.size(), excludeList.size() }; 

     if ((sizeOfLists[0] != sizeOfLists[1]) 
       || (sizeOfLists[0] != sizeOfLists[2]) 
       || (sizeOfLists[1] != sizeOfLists[2])) 
      throw new IllegalArgumentException(
        "The ArrayLists do not have the same size (" 
          + sizeOfLists[0] + ", " + sizeOfLists[1] + ", " 
          + sizeOfLists[2] + ")"); 

     final ZipOutputStream zipOutputFile = new ZipOutputStream(
       new FileOutputStream(outputFile)); 

     final int size = sizeOfLists[0]; 
     final InputStream inputStreamTempArray[] = inputStreamList 
       .toArray(new InputStream[size]); 
     final String includeArray[] = includeList.toArray(new String[size]); 
     final String excludeArray[] = excludeList.toArray(new String[size]); 
     final ZipInputStream inputStreamArray[] = new ZipInputStream[size]; 

     HashMap<String, Object[]> tmp; 

     int i, j; 
     String fileName; 
     ZipEntry entry; 

     for (i = size - 1; i >= 0; i--) { 
      inputStreamArray[i] = new ZipInputStream(inputStreamTempArray[i]); 

      if (includeArray[i] == null) { 
       includeArray[i] = ""; 
      } 

      if (excludeArray[i] == null) { 
       excludeArray[i] = ""; 
      } 

      while ((entry = inputStreamArray[i].getNextEntry()) != null) { 
       fileName = entry.getName(); 

       if (fileName.matches(includeArray[i]) 
         || !fileName.matches(excludeArray[i])) { 
        try { 
         zipOutputFile.putNextEntry(entry); // Here is the inital exception thrown! 

         if (!entry.isDirectory()) { 
          copyStream(inputStreamArray[i], zipOutputFile, 
            false, false); 
         } 
        } catch (ZipException ex) { 
         if (!ex.getMessage() 
           .matches("duplicate entry: .*\\..*")) { 
          throw new RuntimeException(
            "Unexpected " 
              + ex.getClass().getName() 
              + " (\"" 
              + ex.getMessage() 
              + "\")\n(only duplicate entry execptions are expected!)", 
            ex); 
         } 
        } 
       } 
      } 

      inputStreamArray[i].close(); 
     } 

     zipOutputFile.close(); 
    } 

Answer 1

如果您使用的是Java SE 7，請考慮使用NIO.2 File API。

請注意，我已經寫了一些實用的方法來目錄複製到和使用NIO.2文件API Zip文件（該庫是開源的）：

Maven的：

<dependency> 
    <groupId>org.softsmithy.lib</groupId> 
    <artifactId>softsmithy-lib-core</artifactId> 
    <version>0.3</version> 
</dependency> 

教程：

http://softsmithy.sourceforge.net/lib/current/docs/tutorial/nio-file/index.html