Java 9 Zip End Header 未找到异常

Question

为 Google 员工编辑：原来这是由于使用 Java 9.

的 out-of-date 测试版引起的

我正在尝试使用 java - SRTM files 从这个 URL 批量下载 zip 文件，它需要 username/password 才能下载，我正在使用以下 java 代码，它给了我以下异常

java.util.zip.ZipException: zip END header not found
at java.util.zip.ZipFile$Source.zerror(java.base@9-internal/ZipFile.java:1210)
at java.util.zip.ZipFile$Source.findEND(java.base@9-internal/ZipFile.java:1119)
at java.util.zip.ZipFile$Source.initCEN(java.base@9-internal/ZipFile.java:1126)
at java.util.zip.ZipFile$Source.<init>(java.base@9-internal/ZipFile.java:963)
at java.util.zip.ZipFile$Source.get(java.base@9-internal/ZipFile.java:933)
at java.util.zip.ZipFile.<init>(java.base@9-internal/ZipFile.java:213)
at java.util.zip.ZipFile.<init>(java.base@9-internal/ZipFile.java:145)
at java.util.zip.ZipFile.<init>(java.base@9-internal/ZipFile.java:159)
at toposwapper.rules.ZipFileDownloadAction.execute(ZipFileDownloadAction.java:29)

这是我的版本java

 java openjdk version "9-internal"
 OpenJDK Runtime Environment (build 9-internal+0-2016-04-14-195246.buildd.src)
 OpenJDK 64-Bit Server VM (build 9-internal+0-2016-04-14-195246.buildd.src, mixed mode)

这是我用来下载的代码 -

    URL url1 = null;
    URLConnection conn = null;
    InputStream inputs = null;
    FileOutputStream out = null;
    try 
    {
        url1 = new URL(url);
        conn = url1.openConnection();
        conn.setDoInput(true);
        conn.setDoOutput(false);
        conn.setRequestProperty("file-name", output.getName());
        conn.setRequestProperty("content-type","application/zip");
        String userpass = this.username + ":" + this.password;
        String basicAuth = "Basic " + javax.xml.bind.DatatypeConverter.printBase64Binary(userpass.getBytes());
        conn.setRequestProperty("Authorization",basicAuth);
    } 
  catch (MalformedURLException ex) {
           Logger.getLogger(SrtmDownloadManager.class.getName()).log(Level.SEVERE, "", ex);
    throw new TopoSwapperException(ex.getMessage());
    }
  catch (IOException ioe)
    {
    Logger.getLogger(SrtmDownloadManager.class.getName()).log(Level.SEVERE, "", ioe);
    throw new TopoSwapperException(ioe.getMessage());
    }

    try 
      {
         inputs = conn.getInputStream();
         out = new FileOutputStream(output);
         byte[] b = new byte[1024];
         int count;
         while ((count = inputs.read(b)) > -1)
          {
            out.write(b,0,count);
           }
         out.flush();
         inputs.close();
         out.close();

      } 
    catch (FileNotFoundException ex) 
    {
        throw new TopoSwapperException(ex.getMessage());
    } 
    catch (IOException ex) 
    {
    Logger.getLogger(SrtmDownloadManager.class.getName()).log(Level.SEVERE, "", ex);
    throw new TopoSwapperException(ex.getMessage());
    }
finally
    {
        close(inputs);
        close(out);
    }

有人能帮我看看为什么会失败吗？

Answer 1

这是 Java 9 的一些早期 Beta 版本的问题。Java 9-beta 的一些（已经关闭的）错误提到了这个异常（例如 JDK-8170276, JDK-8172872） .这些问题已在后来的测试版和 Java 9 的最终版本中得到修复。这些问题在 Java 8.

中也没有出现

Java 9 Zip End Header 未找到异常

Java 9 Zip End Header Not Found Exception

java

http

download

ubuntu-16.04

java-9