将搜索到的文件上传到服务器上

Question

我编写了一个程序，可以成功地在硬盘上搜索文件。但现在我想添加一个更多的功能。我希望我的程序通过http将这些搜索到的文件上传到服务器上。所以任何人都可以解释一下这个策略是什么？

这里是我的小程序

 public class Find { 

    public static class Finder extends SimpleFileVisitor<Path> { 

     private final PathMatcher matcher; 
     private int numMatches = 0; 

     Finder(String pattern) 
     { 
      matcher = FileSystems.getDefault().getPathMatcher("glob:" + pattern); 
     } 

     // Compares the glob pattern against 
     // the file or directory name. 
     void find(Path file) 
     { 
      Path name = file.getFileName(); 
      if (name != null && matcher.matches(name)) 
      { 
       numMatches++; 
       System.out.println(file); 
      } 
     } 

     // Prints the total number of 
     // matches to standard out. 
     void done() 
     { 
      System.out.println("Matched: " 
       + numMatches); 
     } 

     // Invoke the pattern matching 
     // method on each file. 
     //@Override 
     public FileVisitResult visitFile(Path file, 
       BasicFileAttributes attrs) 
     { 
      find(file); 
      return CONTINUE; 
     } 

     // Invoke the pattern matching 
     // method on each directory. 
     //@Override 
     public FileVisitResult preVisitDirectory(Path dir, 
       BasicFileAttributes attrs) 
     { 
      find(dir); 
      return CONTINUE; 
     } 

     //@Override 
     public FileVisitResult visitFileFailed(Path file,IOException exc) 
     { 
      System.err.println(exc); 
      return CONTINUE; 
     } 
    } 

    static void usage() 
    { 
     System.err.println("java Find <path>" +" -name \"<glob_pattern>\""); 
     System.exit(-1); 
    } 

    public static void main(String[] args)throws IOException 
    { 

     if (args.length < 1) 
     { 
      usage(); 
     } 
     Iterable<Path> root; 
     root = FileSystems.getDefault().getRootDirectories(); 
     for (Path startingDir : FileSystems.getDefault().getRootDirectories()) 
     { 
      String pattern = args[0]; 

     Finder finder = new Finder(pattern); 
     Files.walkFileTree(startingDir, finder); 
     //finder.done(); 
     } 
    } 

} 

Answer 1

好了，假设你已经拿到了文件的绝对路径。

只是应该怎样做一个粗略的想法（未测试）：

 FileInputStream fileInputStream = null; 

     try { 
      new FileInputStream("absoluteFilename"); 

      byte[] buffer = new byte[MAX_SIZE]; 
      int bufferIndex = 0; 
      while (fileInputStream.available() > 0) { 
       buffer[bufferIndex++] = (byte) fileInputStream.read(); 
      } 
      byte[] fileContent = new byte[bufferIndex]; 
      System.arraycopy(buffer,0,fileContent,0,bufferIndex); 

      URL serverUrl = new URL(url); 
      URLConnection connection = serverURL.openConnection(); 
      connection.setConnectTimeout(60000); 
      connection.getOutputStream().write(fileContent); 

     } catch (Exception fatal) { 
      //proper handling?? 
     } finally { 
      if (fileInputStream != null) { 
       try { 
        fileInputStream.close(); 
       } catch (Exception ignored) {} 
      } 
     }