1 /**  2   * android上传文件到服务器  3   *   4   * 下面为 http post 报文格式  5   *   6  POST/logsys/home/uploadIspeedLog!doDefault.html HTTP/1.1   7 　　 Accept: text/plain,   8 　　 Accept-Language: zh-cn   9 　　 Host: 192.168.24.56 10 　　 Content-Type:multipart/form-data;boundary=-----------------------------7db372eb000e2 11 　　 User-Agent: WinHttpClient  12 　　 Content-Length: 3693 13 　　 Connection: Keep-Alive   注：上面为报文头 14 　　 -------------------------------7db372eb000e2 15 　　 Content-Disposition: form-data; name="file"; filename="kn.jpg" 16 　　 Content-Type: image/jpeg 17 　　 (此处省略jpeg文件二进制数据...） 18 　　 -------------------------------7db372eb000e2-- 19   *  20   * @param picPaths 21   *            需要上传的文件路径集合 22   * @param requestURL 23   *            请求的url 24   * @return 返回响应的内容 25   */ 26  public static String uploadFile(String[] picPaths, String requestURL) { 27   String boundary = UUID.randomUUID().toString(); // 边界标识 随机生成 28   String prefix = "--", end = "\r\n"; 29   String content_type = "multipart/form-data"; // 内容类型 30   String CHARSET = "utf-8"; // 设置编码 31   int TIME_OUT = 10 * 10000000; // 超时时间 32   try { 33    URL url = new URL(requestURL); 34    HttpURLConnection conn = (HttpURLConnection) url.openConnection(); 35    conn.setReadTimeout(TIME_OUT); 36    conn.setConnectTimeout(TIME_OUT); 37    conn.setDoInput(true); // 允许输入流 38    conn.setDoOutput(true); // 允许输出流 39    conn.setUseCaches(false); // 不允许使用缓存 40    conn.setRequestMethod("POST"); // 请求方式 41    conn.setRequestProperty("Charset", "utf-8"); // 设置编码 42    conn.setRequestProperty("connection", "keep-alive"); 43    conn.setRequestProperty("Content-Type", content_type + ";boundary=" + boundary); 44    /** 45     * 当文件不为空，把文件包装并且上传 46     */ 47    OutputStream outputSteam = conn.getOutputStream(); 48    DataOutputStream dos = new DataOutputStream(outputSteam); 49      50    StringBuffer stringBuffer = new StringBuffer(); 51    stringBuffer.append(prefix); 52    stringBuffer.append(boundary); 53    stringBuffer.append(end); 54    dos.write(stringBuffer.toString().getBytes()); 55      56    String name = "userName"; 57    dos.writeBytes("Content-Disposition: form-data; name=\"" + name + "\"" + end); 58    dos.writeBytes(end); 59    dos.writeBytes("zhangSan"); 60    dos.writeBytes(end); 61   62      63    for(int i = 0; i < picPaths.length; i++){ 64    File file = new File(picPaths[i]); 65      66    StringBuffer sb = new StringBuffer(); 67    sb.append(prefix); 68    sb.append(boundary); 69    sb.append(end); 70     71    /** 72     * 这里重点注意： name里面的值为服务器端需要key 只有这个key 才可以得到对应的文件 73     * filename是文件的名字，包含后缀名的 比如:abc.png 74     */ 75    sb.append("Content-Disposition: form-data; name=\"" + i + "\"; filename=\"" + file.getName() + "\"" + end); 76    sb.append("Content-Type: application/octet-stream; charset=" + CHARSET + end); 77    sb.append(end); 78    dos.write(sb.toString().getBytes()); 79     80    InputStream is = new FileInputStream(file); 81    byte[] bytes = new byte[8192];//8k 82    int len = 0; 83    while ((len = is.read(bytes)) != -1) { 84     dos.write(bytes, 0, len); 85    } 86    is.close(); 87    dos.write(end.getBytes());//一个文件结束标志 88   } 89    byte[] end_data = http://www.mamicode.com/(prefix + boundary + prefix + end).getBytes();//结束 http 流  90    dos.write(end_data); 91    dos.flush(); 92    /** 93     * 获取响应码 200=成功 当响应成功，获取响应的流 94     */ 95    int res = conn.getResponseCode(); 96    Log.e("TAG", "response code:" + res); 97    if (res == 200) { 98     return SUCCESS; 99    }100   } catch (MalformedURLException e) {101    e.printStackTrace();102   } catch (IOException e) {103    e.printStackTrace();104   }105   return FAILURE;106  }

 1  /** 2   * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse 3   *      response) 4   */ 5  @SuppressWarnings("unchecked") 6  protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 7   // TODO Auto-generated method stub 8   PrintWriter out = response.getWriter(); 9   try {10    // String userName = request.getParameter("userName");//获取form11    // System.out.println(userName);12    List<FileItem> items = this.upload.parseRequest(request);13    if (items != null && !items.isEmpty()) {14     for (FileItem fileItem : items) {15      String filename = fileItem.getName();16      if (filename == null) {// 说明获取到的可能为表单数据,为表单数据时要自己读取17       InputStream formInputStream = fileItem.getInputStream();18       BufferedReader formBr = new BufferedReader(new InputStreamReader(formInputStream));19       StringBuffer sb = new StringBuffer();20       String line = null;21       while ((line = formBr.readLine()) != null) {22        sb.append(line);23       }24       String userName = sb.toString();25       System.out.println("姓名为：" + userName);26       continue;27      }28      String filepath = filedir + File.separator + filename;29      System.out.println("文件保存路径为:" + filepath);30      File file = new File(filepath);31      InputStream inputSteam = fileItem.getInputStream();32      BufferedInputStream fis = new BufferedInputStream(inputSteam);33      FileOutputStream fos = new FileOutputStream(file);34      int f;35      while ((f = fis.read()) != -1) {36       fos.write(f);37      }38      fos.flush();39      fos.close();40      fis.close();41      inputSteam.close();42      System.out.println("文件：" + filename + "上传成功!");43     }44    }45    System.out.println("上传文件成功!");46    out.write("上传文件成功!");47   } catch (FileUploadException e) {48    e.printStackTrace();49    out.write("上传文件失败:" + e.getMessage());50   }51  }

 1 /** 下面为 http post 报文格式 2      POST/logsys/home/uploadIspeedLog!doDefault.html HTTP/1.1  3 　　 Accept: text/plain,  4 　　 Accept-Language: zh-cn  5 　　 Host: 192.168.24.56 6 　　 Content-Type:multipart/form-data;boundary=-----------------------------7db372eb000e2 7 　　 User-Agent: WinHttpClient  8 　　 Content-Length: 3693 9 　　 Connection: Keep-Alive   注：上面为报文头10 　　 -------------------------------7db372eb000e211 　　 Content-Disposition: form-data; name="file"; filename="kn.jpg"12 　　 Content-Type: image/jpeg13 　　 (此处省略jpeg文件二进制数据...）14 　　 -------------------------------7db372eb000e2--15          * 16          * */17         private STATUS uploadImages(String uri)18         {19             String boundary = "------------Ij5ei4ae0ei4cH2ae0Ef1ei4Ij5gL6";; // 边界标识20       String prefix = "--", end = "\r\n";21             /** 根据uri创建WebRequest对象**/22             WebRequest httpReq = WebRequest.Create(new Uri(uri));23             httpReq.Method = "POST";//方法名   24             httpReq.Timeout = 10 * 10000000;//超时时间25             httpReq.ContentType = "multipart/form-data; boundary=" + boundary;//数据类型26             /*******************************/27   try {28             /** 第一个数据为form，名称为par，值为123 */29    StringBuilder stringBuilder = new StringBuilder();30             stringBuilder.Append(prefix);31             stringBuilder.Append(boundary);32             stringBuilder.Append(end);33    String name = "userName";34             stringBuilder.Append("Content-Disposition: form-data; name=\"" + name + "\"" + end);35             stringBuilder.Append(end);36             stringBuilder.Append("zhangSan");37             stringBuilder.Append(end);38             /*******************************/39             Stream steam = httpReq.GetRequestStream();//获取到请求流40             byte[] byte8 = Encoding.UTF8.GetBytes(stringBuilder.ToString());//把form的数据以二进制流的形式写入41             steam.Write(byte8, 0, byte8.Length);42  43             /** 列出 G:/images/ 文件夹下的所有文件**/44    DirectoryInfo fileFolder = new DirectoryInfo("G:/images/");45             FileSystemInfo[] files = fileFolder.GetFileSystemInfos();46             for(int   i = 0;   i < files.Length; i++) 47 　　　　    { 48 　　　　　　  FileInfo   file   =   files[i]   as   FileInfo;49               stringBuilder.Clear();//清理50               stringBuilder.Append(prefix);51               stringBuilder.Append(boundary);52               stringBuilder.Append(end);53               /**54               * 这里重点注意： name里面的值为服务器端需要key 只有这个key 才可以得到对应的文件55               * filename是文件的名字，包含后缀名的 比如:abc.png56               */57               stringBuilder.Append("Content-Disposition: form-data; name=\"" + i + "\"; filename=\"" + file.Name + "\"" + end);58               stringBuilder.Append("Content-Type: application/octet-stream; charset=utf-8" + end);59               stringBuilder.Append(end);60               byte[] byte2 = Encoding.UTF8.GetBytes(stringBuilder.ToString());61               steam.Write(byte2, 0, byte2.Length);62               FileStream fs = new FileStream(file.FullName, FileMode.Open, FileAccess.Read);//读入一个文件。63               BinaryReader r = new BinaryReader(fs);//将读入的文件保存为二进制文件。64               int bufferLength = 8192;//每次上传8k；65               byte[] buffer = new byte[bufferLength];66               long offset = 0;//已上传的字节数67               int size = r.Read(buffer, 0, bufferLength);68               while (size > 0)69               {70                   steam.Write(buffer, 0, size);71                   offset += size;72                   size = r.Read(buffer, 0, bufferLength);73               }74               /** 每个文件结束后有换行 **/75               byte[] byteFileEnd = Encoding.UTF8.GetBytes(end);76               steam.Write(byteFileEnd, 0, byteFileEnd.Length);77               fs.Close();78               r.Close();79             }80             byte[] byte1 = Encoding.UTF8.GetBytes(prefix + boundary + prefix + end);//文件结束标志81             steam.Write(byte1, 0, byte1.Length);82             steam.Close();83             WebResponse response = httpReq.GetResponse();// 获取响应84             Console.WriteLine(((HttpWebResponse)response).StatusDescription);// 显示状态85             steam = response.GetResponseStream();//获取从服务器返回的流86             StreamReader reader = new StreamReader(steam);87             string responseFromServer = reader.ReadToEnd();//读取内容88             Console.WriteLine(responseFromServer);89             // 清理流90             reader.Close();91             steam.Close();92             response.Close();93             return STATUS.SUCCESS;94   } catch (System.Exception e) {95             Console.WriteLine(e.ToString());96             return STATUS.FAILURE;97   } 98 }

1 protected void Page_Load(object sender, EventArgs e)2 {3    string userName = Request.Form["userName"];//接收form4    HttpFileCollection MyFilecollection = Request.Files;//接收文件5    for (int i = 0; i < MyFilecollection.Count; i++ )6    {7       MyFilecollection[i].SaveAs(Server.MapPath("~/netUploadImages/" + MyFilecollection[i].FileName));//保存图片8    }9 }