背景
網上很多上傳到java服務器上的,找了好久,找到了上傳到php的了,思路跟我當初想的差不多,就是POST過去。廢話不多說,直接上圖看代碼。
PHP代碼
PHP代碼
- <?php
- $target_path = "./upload/";//接收文件目錄
- $target_path = $target_path . basename( $_FILES['uploadedfile']['name']);
- if(move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path)) {
- echo "The file ". basename( $_FILES['uploadedfile']['name']). " has been uploaded";
- } else{
- echo "There was an error uploading the file, please try again!" . $_FILES['uploadedfile']['error'];
- }
- ?>
Android代碼
上傳的主要代碼:
Java代碼
- private void uploadFile(String uploadUrl)
- {
- String end = "\r\n";
- String twoHyphens = "--";
- String boundary = "******";
- try
- {
- URL url = new URL(uploadUrl);
- HttpURLConnection httpURLConnection = (HttpURLConnection) url
- .openConnection();//http連接
- // 設置每次傳輸的流大小,可以有效防止手機因為內存不足崩潰
- // 此方法用於在預先不知道內容長度時啟用沒有進行內部緩沖的 HTTP 請求正文的流。
- httpURLConnection.setChunkedStreamingMode(128 * 1024);// 128K
- // 允許輸入輸出流
- httpURLConnection.setDoInput(true);
- httpURLConnection.setDoOutput(true);
- httpURLConnection.setUseCaches(false);
- // 使用POST方法
- httpURLConnection.setRequestMethod("POST");
- httpURLConnection.setRequestProperty("Connection", "Keep-Alive");//保持一直連接
- httpURLConnection.setRequestProperty("Charset", "UTF-8");//編碼
- httpURLConnection.setRequestProperty("Content-Type",
- "multipart/form-data;boundary=" + boundary);//POST傳遞過去的編碼
-
- DataOutputStream dos = new DataOutputStream(
- httpURLConnection.getOutputStream());//輸出流
- dos.writeBytes(twoHyphens + boundary + end);
- dos.writeBytes("Content-Disposition: form-data; name=\"uploadedfile\"; filename=\""
- + srcPath.substring(srcPath.lastIndexOf("/") + 1)
- + "\""
- + end);
- dos.writeBytes(end);
-
- FileInputStream fis = new FileInputStream(srcPath);//文件輸入流,寫入到內存中
- byte[] buffer = new byte[8192]; // 8k
- int count = 0;
- // 讀取文件
- while ((count = fis.read(buffer)) != -1)
- {
- dos.write(buffer, 0, count);
- }
- fis.close();
-
- dos.writeBytes(end);
- dos.writeBytes(twoHyphens + boundary + twoHyphens + end);
- dos.flush();
-
- InputStream is = httpURLConnection.getInputStream();//http輸入,即得到返回的結果
- InputStreamReader isr = new InputStreamReader(is, "utf-8");
- BufferedReader br = new BufferedReader(isr);
- String result = br.readLine();
-
- Toast.makeText(this, result, Toast.LENGTH_LONG).show();//將結果輸出
- dos.close();
- is.close();
-
- } catch (Exception e)
- {
- e.printStackTrace();
- setTitle(e.getMessage());
- }
- }
因為安卓4.0之後耗時間的操作要求都在非UI線程中操作,即將前面的AsyncTask拿來用了吧~
AsyncTask傳送門:http://www.cnblogs.com/yydcdut/p/3707960.html
在這個類中,將上傳的操作放在doInBackground當中,可以有ProgressDialog顯示上傳了多少:
Java代碼
- // Read file
- bytesRead = fileInputStream.read(buffer, 0, bufferSize);
-
- while (bytesRead > 0) {
- outputStream.write(buffer, 0, bufferSize);
- length += bufferSize;
- progress = (int) ((length * 100) / totalSize);
- publishProgress(progress);
-
- bytesAvailable = fileInputStream.available();
- bufferSize = Math.min(bytesAvailable, maxBufferSize);
- bytesRead = fileInputStream.read(buffer, 0, bufferSize);
- }
- outputStream.writeBytes(lineEnd);
- outputStream.writeBytes(twoHyphens + boundary + twoHyphens
- + lineEnd);
- publishProgress(100);
還有就是,注意權限喲:
XML/HTML代碼
- <uses-permission android:name="android.permission.INTERNET" />