Question

我已经编写了一个应用程序来从mysql数据库查询，我已经使用PHP语言与服务器进行了交互，还使用了Android Studio和Volley，并且程序没有错误，但是在运行应用程序时未得到结果< / p>

Java和PHP代码

主班

package com.example.medicatemobile;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.toolbox.Volley;

import org.json.JSONException;
import org.json.JSONObject;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Button qbtn = (Button)findViewById(R.id.qbtn);
        final TextView nametextview = (TextView) findViewById(R.id.carduser);
        final TextView idtextview = (TextView) findViewById(R.id.cardid);


        qbtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String name = nametextview.getText().toString();
                String id = idtextview.getText().toString().trim();

                 Response.Listener<String> responeListener = new Response.Listener<String>() {
                    @Override
                    public void onResponse(String response) {
                        try {
                            JSONObject jsonResponse = new JSONObject(response);
                            boolean success = jsonResponse.getBoolean("success");
                            if(success){
                                Toast.makeText(MainActivity.this,"تم الاستعلام", Toast.LENGTH_SHORT).show();
                                startActivity(new Intent(MainActivity.this,data_avtivity.class));

                            }else{
                                Toast.makeText(MainActivity.this,"خطأ في الاستعلام يرجي التحقق من البيانات او المحاولة في وقت لاحق", Toast.LENGTH_LONG).show();
                            }
                        }catch (JSONException e){
                            e.printStackTrace();


                        }


                    }

                };
                send_data_login send_data = new send_data_login(name , id , responeListener);
                RequestQueue queue = Volley.newRequestQueue(MainActivity.this);
                queue.add(send_data);
            }

        });

    }

}

sen数据类

package com.example.medicatemobile;

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

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

public class send_data_login extends StringRequest {

    private  static  final  String SEND_DATA_URL = "http://192.168.1.101/be/chack.php";
    private Map<String,String> MapData;


    public send_data_login(String cardname , String cardid , Response.Listener<String> listener ){

        super(Method.POST,SEND_DATA_URL,listener,null);
        MapData = new HashMap<>();
        MapData.put("cname",cardname);
        MapData.put("cid",cardid);


    }

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


}

Php代码连接到mysql数据库；提取数据并打印json代码以在android应用程序中接收

<?php

include("config.php");

$cname = $_POST["cname"];
$cid = $_POST["cid"];




$sql= ("SELECT * FROM user WHERE uname like  '$cardname' AND idnumber LIKE  '$cardid'");
$result = mysqli_query($con, $sql);
if ($result) {
    $chack["success"] = true;
}else{
    $chack["success"] = false;
}


echo json_encode($chack);

?>

实施此应用后为什么我没有得到结果

0 个答案: