如何从android中的服务器同时发送和获取字符串

Question

我尝试将一些字符串发送到SQL数据库，同时根据发送数据需要一些值，这里我想根据用户ID获取用户地址。

这是我的StringRequest：

 StringRequest stringRequest = new StringRequest(Request.Method.POST, Server_Url,

                        new Response.Listener<String>() {
                            @Override
                            public void onResponse(String response) {
                                Toast.makeText(CTX,"successful",Toast.LENGTH_SHORT).show();
                            }
                        },new Response.ErrorListener(){
                    @Override
                    public void onErrorResponse(VolleyError volleyError){

                        Toast.makeText(CTX,"Unsuccessful\nTry Again",Toast.LENGTH_SHORT).show();
                    }
                }) {
                    @Override
                    protected Map<String, String> getParams() throws AuthFailureError {

                        Map<String,String> param = new HashMap<String,String>();
                        param.put("name",name);
                        param.put("user_id",user_id);
                        return param;
                    }
                };
  Singletone.getSingletone(CTX).addToRequest(stringRequest);

这是我的php文件

$name  = $_POST["name"];
$user_id = $_POST["user_id"];

$db_name = "andr1";
$user_name = "user";
$password = "";
$server = "localhost";

$con = mysqli_connect($server,$user_name,$password,$db_name);

$sql = "INSERT INTO user_car VALUES('".name."', '".$user_id."');";

if(mysqli_query($con,$sql)){

    echo "Success...";
}
else{
    echo "Error...";die("Error: " . mysqli_error($con));
}