无法从 php 脚本中的 android 获取 post 数据

Question

我正在尝试获取从 android 到 php

的一些用户字段

$mobile_num 已正确填充，但 $user_name、$latitude、$longitude 等其他变量仍为空。

<?php

include('ConnectDB.php');
$user_name=$_POST['userName'];
$mobile_num=$_POST['mobileNo'];
$latitude=$_POST['latitude'];
$longitude=$_POST['longitude'];
$status=1;

echo $mobile_num;

$sql = "INSERT INTO user (username,mobileNo,latitude,longitude,status ) VALUES (?,?,?,?,?)";
$stmt = $con->prepare($sql);
$stmt>bind_param("sssss",$user_name,$mobile_num,$latitude,$longitude,$status);$result=$stmt->execute(); 


if($result)
    echo "inserted ". $result ." row/rows";
else
    die('Could not connect: ' . $con->error);

mysqli_close($con);

?>

在对值进行硬编码时，代码可以正确插入数据，但是 post 方法无法捕获用户名、纬度、经度的值。

这是我的 android 代码：

 @Override
  protected String doInBackground(String... params) {

    try {

        data= URLEncoder.encode("mobileNo","UTF-8")
                 + "="+URLEncoder.encode(mUser.getMobileNo(),"UTF-8");

        data+= URLEncoder.encode("userName","UTF-8")
                + "="+URLEncoder.encode(mUser.getUsername(),"UTF-8");

        data+= URLEncoder.encode("latitude","UTF-8")
                + "="+URLEncoder.encode(String.valueOf(mUser.getLatitude()),"UTF-8");

        data+= URLEncoder.encode("longitude","UTF-8")
                + "="+URLEncoder.encode(String.valueOf(mUser.getLongitude()),"UTF-8");

    } catch (Exception e)
    {
        Toast.makeText(activityContext, "ERROR: "+e, Toast.LENGTH_LONG).show();
    }

    return insertUserData(data);
}


private String insertUserData(String data)
{
    try
    {
        conn = DBConnection.createConnnection(php_file);
        OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream());
        writer.write(data);
        writer.flush();

        BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
        response = reader.readLine();

    } catch (IOException e) {
        e.printStackTrace();
    }

    return response;
}

我该怎么做才能解决这个问题？

Answer 1

当您创建数据字符串时，您需要在每个属性之间放置一个“&”。不要url编码'&'。

 data= URLEncoder.encode("mobileNo","UTF-8")
             + "="+URLEncoder.encode(mUser.getMobileNo(),"UTF-8");

    data+= "&" + URLEncoder.encode("userName","UTF-8")
            + "="+URLEncoder.encode(mUser.getUsername(),"UTF-8");

    data+= "&" + URLEncoder.encode("latitude","UTF-8")

            + "="+URLEncoder.encode(String.valueOf(mUser.getLatitude()),"UTF-8");

    data+= "&" + URLEncoder.encode("longitude","UTF-8")
            + "="+URLEncoder.encode(String.valueOf(mUser.getLongitude()),"UTF-8");

无法从 php 脚本中的 android 获取 post 数据

cannot fetch post data from android in php script

php

sql

android