找不到Java 9 Zip End Headerexception

我试图使用java- SRTM文件从这个URL批量下载zip文件，它需要用户名/密码下载，我使用以下java代码，它给了我以下exception

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.(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.(java.base@9-internal/ZipFile.java:213) at java.util.zip.ZipFile.(java.base@9-internal/ZipFile.java:145) at java.util.zip.ZipFile.(java.base@9-internal/ZipFile.java:159) at toposwapper.rules.ZipFileDownloadAction.execute(ZipFileDownloadAction.java:29) 

这是我的java版本

  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); } 

有人可以帮我解释为什么会失败吗？

Answer 1

Java 9中有一些（已经关闭的）错误提到了这个例外（例如JDK-8170276 ， JDK-8172872 ）。 由于Java 9仍然处于测试阶段并且您使用的是一年多以前的版本（2016-04-14与撰写本文时的2017年7月），您应该升级到最新的Java 9 EA版本或坚持使用Java 8直到公开发布Java 9。