Web Tier APIs: ZipOutputStream and files with whitespaces

• jerry_garciaa / 300 / Fri, 03 Jul 2009 10:29:00 GMT / Comments (3)
• I have a page that will generate a zip file from the users selected files(checkbox).
  Here is the code:
  
  if(counter >= MAXFILES){counter=0;}
  
  outFilename = "C:\\ZIP\\OK"+counter+".zip";
  
  counter++;
  
  ZipOutputStream outfile = new ZipOutputStream(new FileOutputStream(outFilename));
  
  // Compress the files
  
  for (int i=0; i<filenames.length; i++) {
  
  FileInputStream in = new FileInputStream(PATH+filenames[i]);
  
  // Add ZIP entry to output stream.
  
  outfile.putNextEntry(new ZipEntry(PATH+filenames[i]));
  
  // Transfer bytes from the file to the ZIP file
  
  int len;
  
  while ((len = in.read(buf)) > 0) {
  
  outfile.write(buf, 0, len);
  
  }
  
  // Complete the entry
  
  outfile.closeEntry();
  
  in.close();
  
  }
  
  // Complete the ZIP file
  
  outfile.close();
  
  } catch (IOException e) {
  
  }
  
  }%>
  
  It works fine, except that when the user selects a file that contains whitespaces in the name ( file Name.txt). When a file with naming conventions as above is added to the FileInputStream the resulting zip file is corrupted(winzip wont open it)[file does not appear to be a valid zip archive]is what the winzip error is.
  
  Anyone know why whitespaced file names will cause this? Is there a solution?
  
  Thanks in advance!!
  
• Keywords:

  zipoutputstream, files, whitespaces, web, tier, apis

• http://java.itags.org/java-web-tier-apis/79640/«« Last Thread - Next Thread »»

• 1. any takers?

     jerry_garciaa | Sun, 15 Jul 2007 17:52:00 GMT |

  2. Not sure if this will help, but you might want to do a check on the filenames first and if you find a white space in the filename replace the space with the ASCII representation of a space (%20) without the params...I haven't tested it or anything but it might be a

     dapanther99a | Sun, 15 Jul 2007 17:52:00 GMT |

  3. [nobr] I have determined that the request.getParameter value is what is getting truncated:

     String[] fileNames = request.getParameterValues("cb");

     int count = 0;if (fileNames != null) { count = fileNames.length; }

     for (int i = 0; i < count; i++) { out.println(fileNames[i]+ "<br>"); }

     The preceding code gives me:

     file1.txt(actual name is file1.txt)

     file2.txt(actual name is file2.txt)

     file3.txt(actual name is file3.txt)

     Copy(actual name is Copy of file3.txt)

     So I tried this:

     String[] fileNames = request.getParameterValues("cb");

     int count = 0;if (fileNames != null) { count = fileNames.length; }

     for (int i = 0; i < count; i++) { out.println(fileNames[i].replaceAll(" ","%20") + "<br>"); }

     Which doesnt work.

     Any ideas?[/nobr]

     jerry_garciaa | Sun, 15 Jul 2007 17:52:00 GMT |