Question

我正在尝试从Android手机向服务器发送GPS数据。虽然不行。我在这里附上了我的代码片段。请检查并帮助我！

public void onNmeaReceived(long timestamp, String nmea) 
    { 
        String url = "http://www.xyz.com/server.php?DATA=";
        String params = URLEncoder.encode(nmea);
        url = url+params;
        HttpClient client = new DefaultHttpClient();
        HttpPost httppost = new HttpPost(url);
        try {
            HttpResponse httpResponse = client.execute(httppost);
            Log.d("Status", "Request Sent " + httpResponse.getStatusLine().getStatusCode());
            } 
        catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            } 
            Log.d("url", url);          
    }

我的输出是这样的！它被编码并发送。

08-03 22:37:01.062: DEBUG/url(15874): http://www.xyz.com/server.php?DATA=%24GPGSV%2C4%2C1%2C16%2C03%2C14%2C147%2C%2C06%2C05%2C140%2C%2C09%2C05%2C018%2C%2C11%2C73%2C251%2C*7E%0D%0A
08-03 22:37:01.172: DEBUG/url(15874): http://www.xyz.com/server.php?DATA=%24GPGSV%2C4%2C2%2C16%2C14%2C29%2C085%2C%2C17%2C%2C%2C%2C18%2C%2C%2C%2C19%2C48%2C147%2C*72%0D%0A
08-03 22:37:01.312: DEBUG/url(15874): http://www.xyz.com/server.php?DATA=%24GPGSV%2C4%2C3%2C16%2C20%2C14%2C213%2C%2C22%2C29%2C056%2C%2C24%2C57%2C260%2C%2C27%2C07%2C001%2C*75%0D%0A
08-03 22:37:01.432: DEBUG/url(15874): http://www.xyz.com/server.php?DATA=%24GPGSV%2C4%2C4%2C16%2C28%2C32%2C298%2C%2C32%2C36%2C194%2C%2C08%2C%2C%2C%2C31%2C%2C%2C*74%0D%0A
08-03 22:37:01.582: DEBUG/url(15874): http://www.xyz.com/server.php?DATA=%24GPGGA%2C%2C%2C%2C%2C%2C0%2C%2C%2C%2C%2C%2C%2C%2C*66%0D%0A
08-03 22:37:01.702: DEBUG/url(15874): http://www.xyz.com/server.php?DATA=%24GPVTG%2C%2CT%2C%2CM%2C%2CN%2C%2CK%2CN*2C%0D%0A
08-03 22:37:01.848: DEBUG/url(15874): http://www.xyz.com/server.php?DATA=%24GPRMC%2C%2CV%2C%2C%2C%2C%2C%2C%2C%2C%2C%2CN*53%0D%0A
08-03 22:37:01.962: DEBUG/url(15874): http://www.xyz.com/server.php?DATA=%24GPGSA%2CA%2C1%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C*1E%0D%0A

发送到服务器的数据是，

http://www.xyz.com/server.php?DATA=%24GPGSA%2CA%2C1%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C*1E%0D%0A

将数据发送到服务器。 new1.nmea文件已创建！但当我把'猫'看到里面的东西时，文件是空的！

server.php

<?php 
//$data = $_POST["DATA"].""; 
$data = file_get_contents('php://input');
$Handle = fopen("/xxx/xxx/new1.nmea", "a");
fwrite($Handle, $data);
fclose($Handle);
?>

我需要在服务器端使用相同格式的数据而不做任何更改（nmea 0183格式）。我很震惊！请帮帮我！

Answer 1

为什么你需要NMEA和LocationUpdates，他们中的任何一个都可以。当你说你想要GPS信息时你想要NMEA字符串还是只需要准确度，时间，速度等位置属性？

当您尝试发送NMEA字符串而不是在LocationListener中时，您应该在NMEAListener中执行HTTP请求吗？首先，这是什么逻辑，我很好奇。

Answer 2

如果必须使用HTTP接受数据，则应考虑使用“POST”而不是“GET”。 NMEA中有很多字符需要正确编码以满足请求的要求。如果您执行“POST”，则可以指定“内容类型”和“Charset”以匹配原始NMEA。我相信你可以做“Content-Type：text / plain”并传递原始POST。

请注意，如果您使用原始的“POST”方法，那么您将不再拥有PHP中的$ _POST变量，并且您必须阅读原始消息。您可以通过执行以下操作来阅读原始帖子：

$data = file_get_contents('php://input');

客户端代码：

String url = "http://www.xyz.com/server.php";
HttpPost post = new HttpPost(url);

StringEntity se = new StringEntity(nmea);
se.setContentType("text/plain");
post.setEntity(se); 

HttpClient client = new DefaultHttpClient();
HttpResponse httpResponse = client.execute(post);

请注意，您的POST将作为原始帖子出现在PHP脚本中，因此您必须进行一些处理以获取NMEA字符串。

Answer 3

其工作人员！

public void onNmeaReceived(long timestamp, String nmea) 
        { 
            String params;
            try {
                params = URLEncoder.encode(nmea, "UTF-8");
                Log.d("executing", params);
                String url = "http://www.xyz.com/server.php?DATA="+params;
                //url = url+params;
                HttpPost httppost = new HttpPost(url);
                HttpClient client = new DefaultHttpClient();
                try {
                    HttpResponse httpResponse = client.execute(httppost);
                    Log.d("Status", "Request Sent " + httpResponse.getStatusLine().getStatusCode());
                    } 
                catch (Exception e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                    } 
            } catch (UnsupportedEncodingException e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
            }

<?php 
$data = $_GET["DATA"]."";
echo urldecode($data);
//$data = file_get_contents('php://input');
$Handle = fopen("xxx/xxx/test.nmea", "a");
fwrite($Handle, $data);
fclose($Handle);
flush($Handle);
?>

将GPS数据发送到服务器无法正常工作？

3 个答案: