Question

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我还是新手，我需要帮助。也许我错过了一些东西......

< / p>

这是我的PHP代码

<?php
    $con = mysqli_connect("localhost", "root", "", "customer");

    $order_name = $_POST["order_name"];
    $order_cust = $_POST["order_cust"];
    $quantity = $_POST["quantity"];

    $statement = mysqli_prepare($con, "INSERT INTO order (order_name, order_cust, quantity) VALUES (?, ?, ?)");
    mysqli_stmt_bind_param($statement, "sss", $order_name, $order_cust, $quantity);
    mysqli_stmt_execute($statement);

    $response = array();
    $response["success"] = true;  

    echo json_encode($response);
?>

然后是我的回复代码..

import com.android.volley.Response;
import com.android.volley.toolbox.StringRequest;

import java.util.HashMap;
import java.util.Map;


public class OrderRequest extends StringRequest {

    private static final String ORDER_REQUEST_URL = "http://10.0.2.2/customer/Insert.php";
    private Map<String, String> params;

    public OrderRequest(String order_name, String order_cust, String quantity, Response.Listener<String> listener){
        super(Method.POST, ORDER_REQUEST_URL, listener, null);
        params = new HashMap<>();
        params.put ("order_name", order_name);
        params.put ("order_cust", order_cust);
        params.put ("quantity", quantity);
    }

    @Override
    public Map<String, String> getParams() {
        return params;
    }
}

最后这是我的按钮活动代码...

bConfirm.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                final String user_id = etUsername.getText().toString();
                final String date = etDate.getText().toString();
                final String time = etTime.getText().toString();
                final String pax = etPax.getText().toString();

                Response.Listener<String> responseListener = new Response.Listener<String>() {
                    @Override
                    public void onResponse(String response) {
                        try{
                            JSONObject jsonResponse = new JSONObject(response);
                            boolean success = jsonResponse.getBoolean("success");

                            if(success){
                                AlertDialog.Builder builder = new AlertDialog.Builder(ReservationActivity.this);
                                builder.setMessage("Success! Your reservation has been added to our Queue!").setNegativeButton("Confirm", null).create().show();
                            }else{
                                AlertDialog.Builder builder = new AlertDialog.Builder(ReservationActivity.this);
                                builder.setMessage("Reservation failed or missing credentials...").setNegativeButton("Retry", null).create().show();
                            }

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

                ReservationRequest reservationRequest = new ReservationRequest(user_id, date, time, pax, responseListener);
                RequestQueue queue = Volley.newRequestQueue(ReservationActivity.this);
                queue.add(reservationRequest);
            }
        });

这里是LogCat

W/System.err: org.json.JSONException: Value <br of type java.lang.String cannot be converted to JSONObject

我需要得到帮助...

Answer 1

你要求发送JSON，它发送的是html。因此，您无法将其解析为JSON。您的端点是错误的，它根本不发送JSON，或者在发生错误时发送HTML。或者你有服务器错误。

遇到＆＃34; org.json.JSONException：Value <br of =“”type =“”java.lang.string =“”can =“”be =“”converted =“”to =“”jsonobject“=” “

1 个答案: