Question

我正在开发一个文件管理器Android应用程序，它通过POST方法将base64编码文件发送到Web服务器。在服务器端，cgi perl脚本获取字符串，对其进行解码并将其保存到文件中。问题是无法建立套接字连接，并且Apache访问日志中没有数据条目。请分享任何想法，以下是源代码：

“i”是类Item的对象 - 即文件管理器中的选定文件。

项目i = adapter.getItem（position）; 我将“i”传递给sendFile方法。

private void sendFile(Item i) {
    try {
        File inFile;
        DataInputStream dis;
        String queryString, encodedData, headerPart1, headerPart2, dataBundle;
        byte[] fileData;
        int contentLength;
        String host = "192.168.100.2";

        inFile = new File(i.getPath());
        fileData = new byte[(int) inFile.length()];
        dis = new DataInputStream(new FileInputStream(i.getPath()));
        dis.readFully(fileData);
        dis.close();

        encodedData = Base64.encodeToString(fileData, Base64.NO_WRAP);

        AccountManager accountManager = AccountManager
                .get(getBaseContext());
        Account account = getAccount(accountManager);

        queryString = account.name + "^" + i.getName() + "^" + encodedData;

        headerPart1 = "POST /cgi-bin/grabber.cgi HTTP/1.1\r\n" + "Host: "
                + host + "\r\n" + "User-Agent: Tposter\r\n"
                + "Content-Length: ";
        headerPart2 = "Content-Type: text/plain\r\n"
                + "Accept-Charset: UTF-8\r\n\r\n";

        contentLength = queryString.length();
        dataBundle = headerPart1 + contentLength + "\r\n" + headerPart2
                + queryString;

        // Create file uploader thread
        FileUploader fileUploader = new FileUploader(dataBundle);
        fileUploader.start();
        Toast.makeText(this, "File sent!", Toast.LENGTH_LONG).show();
        finish();

    } catch (Exception e) {
        Log.e("send ERROR in file FileChooser.class ", e.getMessage());
    }
}

FileUploader.java

public class FileUploader extends Thread {

PrintWriter printWriter;
SocketAddress sockAddr;
Socket socket;
int port = 80;
String host = "192.168.100.2";

public FileUploader(String dataBundle) {
    try {
        sockAddr = new InetSocketAddress(host, port);
        socket = new Socket();
        socket.setSoTimeout(3000);
        socket.connect(sockAddr, 5000);
        if (socket.isConnected()) {
            Log.w("Connected! ", dataBundle);

            printWriter = new PrintWriter(new OutputStreamWriter(
                    socket.getOutputStream()));

            printWriter.println(dataBundle);
            printWriter.flush();
            printWriter.close();
            socket.close();
        }
    } catch (IOException e) {
        Log.e("socket ERROR in file fileUploader.class ", e.getMessage());
    }
}

}

！[调试屏幕显示] :( http://postimg.org/image/6upsjregb/）

Answer 1

我使用httpClient来完成此任务。以下示例发送并等待从我的服务器接收JSON数据。

private String postPullData(JSONObject json, String URL) throws JSONException { 
    HttpClient httpclient;
    int CONNECTION_TIMEOUT = 20*1000;
    int WAIT_RESPONSE_TIMEOUT = 20*1000;
    HttpPost httppost = new HttpPost(URL);

    String Error = "SCOMM Error: ";
    JSONArray postjson;
    URL url = null;

    int sdkVersion = Build.VERSION.SDK_INT;

    /*
     *  according to the Android docs, Android 3.0+ should use URLConnection
     *  but I can't get that to work. For now, keep using HttpConnection

    if (sdkVersion < Build.VERSION_CODES.HONEYCOMB) {
    */
        // use the older HttpClient 

        HttpParams httpParameters = new BasicHttpParams();
        HttpConnectionParams.setConnectionTimeout(httpParameters, CONNECTION_TIMEOUT);
        HttpConnectionParams.setSoTimeout(httpParameters, WAIT_RESPONSE_TIMEOUT);
        HttpConnectionParams.setTcpNoDelay(httpParameters, true);

        httpclient = new DefaultHttpClient(httpParameters);


        try {

            postjson = new JSONArray();
            postjson.put(json);

            // Post the data:
            httppost.setHeader("json", json.toString());
            httppost.getParams().setParameter("jsonpost", postjson);

            // Execute HTTP Post Request
            System.out.print(json);
            HttpResponse response = httpclient.execute(httppost);

            // for JSON:
            if (response != null)
            {
                InputStream is = response.getEntity().getContent();
                BufferedReader reader = new BufferedReader(
                        new InputStreamReader(is));
                StringBuilder sb = new StringBuilder();
                String line = null;
                try {
                    while ((line = reader.readLine()) != null) {
                    sb.append(line + "\n");
                    }
                } catch (IOException e) {
                    Error += " IO Exception: " + e;
                    Log.d("SCOMM", Error);
                    e.printStackTrace();
                    return Error;
                } finally {
                    try {
                        is.close();
                    } catch (IOException e) {

                        Error += " closing connection: " + e;
                        Log.d("SCOMM", Error);
                        e.printStackTrace();
                        return Error;
                    }
                }

                return sb.toString();

 <snip>

通过HTTP和POST发送查询字符串的Android应用程序

1 个答案: