Question

已解决：缺少postData（）的视图参数，已更改为反映此内容。

我想帮助将GPS数据发送到服务器，服务器将使用PHP存储在MySQL数据库中。

这是我的Java文件：

ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);

public void postData(View v)
{
    nameValuePairs.add(new BasicNameValuePair("Lat","19.80"));
    nameValuePairs.add(new BasicNameValuePair("Lon","13.22"));

    //http post
    try{
        HttpClient httpclient = new DefaultHttpClient();
        HttpPost httppost = new      
        HttpPost("http://www.xxxxxxxx.com/test.php");
        httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
        HttpResponse response = httpclient.execute(httppost);
        HttpEntity entity = response.getEntity();
        InputStream is = entity.getContent();
        Log.i("postData", response.getStatusLine().toString());
    }

    catch(Exception e)
    {
        Log.e("log_tag", "Error in http connection "+e.toString());
    }           
}

我的PHP：

<?php
include 'connect.php'; //Connect

//retrieve the data
$lat = $_POST['lat'];
$lon = $_POST['lon'];

$sql = "INSERT INTO Coords (Lat, Lon) VALUES('$lat', '$lon')";

if (!mysql_query($sql, $sqlCon))
{
    die('Error: ' . mysql_error());
}
else
{
    //echo "1 record added";
}

include 'closeConnection.php';
?>

堆栈跟踪：项目 - 加热[Android应用程序]

 02-06 00:37:14.265: ERROR/AndroidRuntime(1607): FATAL EXCEPTION: main
 02-06 00:37:14.265: ERROR/AndroidRuntime(1607): java.lang.IllegalStateException: Could       
 not find a method **postData(View)** in the activity class com.nathanhunston.heat.Main for   
 onClick handler on view class android.widget.Button with id 'dropLocBtn'

Answer 1

堆栈跟踪的第一行告诉您确切的错误：

02-06 00:37:14.265: ERROR/AndroidRuntime(1607): FATAL EXCEPTION: main
02-06 00:37:14.265: ERROR/AndroidRuntime(1607): java.lang.IllegalStateException: Could not find a method postData(View) in the activity class com.nathanhunston.heat.Main for onClick handler on view class android.widget.Button with id 'dropLocBtn'

这是因为您的View方法声明中没有postData()参数。

Answer 2

您是否已将<uses-permission android:name="android.permission.INTERNET"></uses-permission>添加到manifest.xml？

Answer 3

我认为你应该在一个线程中调用它...如果服务器挂起一点响应，你会得到强制关闭消息......

您可以查看以下帖子：Problem with Android HTTP POST

Answer 4

我认为问题在于“ nameValuePairs.add（new BasicNameValuePair（”Lat“，”19.80“））; ”您使用了 Lat 并且 $ _ POST ['lat']; ，您使用了 lat 。所以Lat和lat是不同的东西。顺便说一句，这是一篇好文章，http://androidtheme.wordpress.com/2011/02/20/connect-android-device-to-mysql/。它确实有效，我希望你喜欢它。

Android：发送要存储在MySQL中的数据

4 个答案: