Android客户端上传文件到服务器端

/**          * 上传文件          */          public static String sendFile(String urlPath, String filePath,                  String newName) throws Exception {              String end = "\r\n";              String twoHyphens = "--";              String boundary = "*****";                    URL url = new URL(urlPath);              HttpURLConnection con = (HttpURLConnection) url.openConnection();              /* 允许Input、Output，不使用Cache */              con.setDoInput(true);              con.setDoOutput(true);              con.setUseCaches(false);              /* 设置传送的method=POST */              con.setRequestMethod("POST");              /* setRequestProperty */                    con.setRequestProperty("Connection", "Keep-Alive");              con.setRequestProperty("Charset", "UTF-8");              con.setRequestProperty("Content-Type", "multipart/form-data;boundary="                      + boundary);              /* 设置DataOutputStream */              DataOutputStream ds = new DataOutputStream(con.getOutputStream());              ds.writeBytes(twoHyphens + boundary + end);              ds.writeBytes("Content-Disposition: form-data; "                      + "name=\"file1\";filename=\"" + newName + "\"" + end);              ds.writeBytes(end);                    /* 取得文件的FileInputStream */              FileInputStream fStream = new FileInputStream(filePath);              /* 设置每次写入1024bytes */              int bufferSize = 1024;              byte[] buffer = new byte[bufferSize];                    int length = -1;              /* 从文件读取数据至缓冲区 */              while ((length = fStream.read(buffer)) != -1) {                  /* 将资料写入DataOutputStream中 */                  ds.write(buffer, 0, length);              }              ds.writeBytes(end);              ds.writeBytes(twoHyphens + boundary + twoHyphens + end);                    /* close streams */              fStream.close();              ds.flush();                    /* 取得Response内容 */              InputStream is = con.getInputStream();              int ch;              StringBuffer b = new StringBuffer();              while ((ch = is.read()) != -1) {                  b.append((char) ch);              }              /* 关闭DataOutputStream */              ds.close();              return b.toString();          }
原帖地址：http://blog.csdn.net/lk_blog/article/details/7706348
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