废话不多说了，直接给大家贴关键代码了。
/** * 往服务器上上传文本 比如log日志 * @param urlstr 请求的url * @param uploadFile log日志的路径 * /mnt/shell/emulated/0/LOG/LOG.log * @param newName log日志的名字 LOG.log * @return */ public static void httpPost(Activity activity,String urlstr,String uploadFile,String newName) { LogUtil.info("getEhttpPostt", "urlstr="+urlstr+";uploadFile="+uploadFile+";newName="+newName,"i"); String end = "\r\n"; String twoHyphens = "--"; String boundary = "*****";//边界标识 int TIME_OUT = 10*1000; //超时时间 HttpURLConnection con = null; DataOutputStream ds = null; InputStream is = null; try { URL url = new URL(urlstr); con = (HttpURLConnection) url.openConnection(); con.setReadTimeout(TIME_OUT); con.setConnectTimeout(TIME_OUT); /* 允许Input、Output，不使用Cache */ con.setDoInput(true); con.setDoOutput(true); con.setUseCaches(false); // 设置http连接属性 con.setRequestMethod("POST");//请求方式 con.setRequestProperty("Connection", "Keep-Alive");//在一次TCP连接中可以持续发送多份数据而不会断开连接 con.setRequestProperty("Charset", "UTF-8");//设置编码 con.setRequestProperty("Content-Type",//multipart/form-data能上传文件的编码格式 "multipart/form-data;boundary=" + boundary); ds = new DataOutputStream(con.getOutputStream()); ds.writeBytes(twoHyphens + boundary + end); ds.writeBytes("Content-Disposition: form-data; " + "name=\"stblog\";filename=\"" + newName + "\"" + end); ds.writeBytes(end); // 取得文件的FileInputStream FileInputStream fStream = new FileInputStream(uploadFile); /* 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);//结束 fStream.close(); ds.flush(); /* 取得Response内容 */ is = con.getInputStream(); int ch; StringBuffer b = new StringBuffer(); while ((ch = is.read()) != -1) { b.append((char) ch); } /* 将Response显示于Dialog */ showDialog(activity,true,uploadFile,"上传成功" + b.toString().trim()); } catch (Exception e) { showDialog(activity,false,uploadFile,"上传失败" + e); }finally { /* 关闭DataOutputStream */ if(ds!=null){ try { ds.close(); } catch (IOException e) { e.printStackTrace(); } } if (is != null) { try { is.close(); } catch (IOException e) { e.printStackTrace(); } } if (con != null) { con.disconnect(); } } } /* 显示Dialog的method */ private static void showDialog(final Activity activity,final Boolean isSuccess,final String uploadFile,final String mess) { activity.runOnUiThread(new Runnable() { @Override public void run() { new AlertDialog.Builder(activity).setTitle("Message") .setMessage(mess) .setNegativeButton("确定", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { File file = new File(uploadFile); if(file.exists()&&isSuccess){//日志文件存在且上传日志成功 file.delete(); Toast.makeText(activity, "log日志已删除", Toast.LENGTH_SHORT).show(); } } }).show(); } }); }
以上内容是小编给大家介绍的Android 通过httppost上传文本文件到服务器的实例代码，代码简单易懂，附有注释，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对脚本之家网站的支持！