在 Android/phpMyAdmin 中插入数据库时​​出错

Question

如果我在网络浏览器中测试我的 PHP 文件，它可以工作（例如，给定 newObsindiaries.php?idd="52"&ido="1"&when="10"，它会毫无问题地插入数据库）。

但是，在 Android 中，它不起作用并在日志中返回此消息：

org.json.JSONException: [idd=52, ido=1, when=10] 的字符 5 处未终止的数组

这是 PHP 代码：

<?php
$dbhost = "127.0.0.1";
$dbuser = "root";
$dbpass = "";
$dbname = "clinic_last";

$link = @mysqli_connect($dbhost,$dbuser,$dbpass,$dbname)
    or die("Impossibile collegarsi al server: " . mysqli_error());
mysqli_select_db($link ,'clinic_last')
    or die("unable to select database 'dbname': " . mysqli_error());

$idd = $_GET['idd'];
$ido = $_GET['ido'];        
$when = $_GET['when'];

$string = ("INSERT INTO obsindiaries (`when`, ido, idd)
    SELECT $when,$ido,idd FROM diaries WHERE idd = $idd LIMIT 1");

$string2 = "INSERT INTO obsindiaries (idod,idd,ido,`when`) VALUES
    (NULL,'$idd','$ido','$when')";

$flag['code']=0;

$result = mysqli_query($link,$string);
// check if row inserted or not
if ($result) {
    // successfully inserted into database    
    $response["success"] = 1;
    $response["message"] = "**successfully Registration.**";

    // echoing JSON response
    echo json_encode($response);
} 
if (!$result) {
    // failed to insert row
    $response["success"] = 0;
    $response["message"] = "Oops! An error occurred.";

    // echoing JSON response
    echo json_encode($response);
}

if (!$result) {
    // required field is missing
    $response["success"] = 0;
    $response["message"] = "Required field(s) is missing";

    // echoing JSON response
    echo json_encode($response);
}
mysqli_close($link);  
?>

这是文件.class的一部分：

public void ClickSaveObsindiaries(){
    SavingObs=(ImageButton)findViewById(R.id.saveObsindiaries);
    SavingObs.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View arg0) {
            //INSERISCO VALORI DENTRO LISTA
            StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
            StrictMode.setThreadPolicy(policy);

            List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
            nameValuePairs.add(new BasicNameValuePair("idd", ID_diary.getText().toString()));
            int positionTypeObs = typeObsindiaries.getSelectedItemPosition() + 1;
            String valueType = String.valueOf(positionTypeObs);
            nameValuePairs.add(new BasicNameValuePair("ido",valueType));
            char first = hours.getSelectedItem().toString().charAt(0);
            if (first=='I')
                nameValuePairs.add(new BasicNameValuePair("when", IntervalHours.getText().toString()));
            else 
                nameValuePairs.add(new BasicNameValuePair("when", hours.getSelectedItem().toString()));

            System.out.println("valore di RESULT: "+nameValuePairs.toString());
            try {
                HttpClient httpClient = new DefaultHttpClient();
                HttpPost httpPost = new HttpPost("http://10.0.2.2/newObsindiaries.php");
                Log.e("httpPost is:"," "+httpPost.toString());
                httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs));//,"UTF-8"

                HttpResponse response = httpClient.execute(httpPost);
                HttpEntity entity = response.getEntity();
                is = entity.getContent();
                Log.e("pass 1", "connection success ");
            } catch(Exception e) {  
                Log.e("Fail 1", e.toString());
                Toast.makeText(getApplicationContext(), "Invalid IP Address", Toast.LENGTH_LONG).show();
            } 
            try {
                BufferedReader reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8);
                StringBuilder sb = new StringBuilder();
                while ((line = reader.readLine()) != null) {
                    sb.append(line + "\n");
                }
                is.close();
                result = sb.toString();
                Log.e("pass 2", "connection success ");
            } catch(Exception e) {
                Log.e("Fail 2", e.toString());
            }     
            try {
                JSONObject json_data = new JSONObject(nameValuePairs.toString());
                code=(json_data.getInt("code"));

                if(code==1) {
                    Toast.makeText(getBaseContext(), "Inserted Successfully", Toast.LENGTH_SHORT).show();
                } else {
                    Toast.makeText(getBaseContext(), "Sorry, Try Again", Toast.LENGTH_LONG).show();
                }
            } catch(Exception e) {
                Log.e("Fail 3", e.toString());
                Log.e("JSON Parser", "Error parsing data " + e.toString());
            }

            AlertDialog.Builder builder = new AlertDialog.Builder(new ContextThemeWrapper(add_obsindiaries.this, R.style.myDialog));
            builder.setMessage("Misurazione inserita! Premere OK per tornare alla lista delle misurazioni")
                .setCancelable(false)
                .setPositiveButton("OK", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int id) {
                    Intent listOBS = new Intent(add_obsindiaries.this,obsindiaries_list.class);
                    fromObsList.putString("idDiary", fromObsList.getString("idDiary"));
                    listOBS.putExtras(fromObsList);
                    add_obsindiaries.this.finish();
                    startActivity(listOBS);
                }
            });
            AlertDialog alert = builder.create();
            alert.show();
        }
    });
}

Answer 1

我认为问题出在这一行

JSONObject json_data = new JSONObject(nameValuePairs.toString());

您正在尝试解析从参数返回的数据。这没有意义。而nameValuePairs.toString() 将返回与 Json 格式不匹配的字符串，这就是您收到错误的原因。你应该使用result 而不是nameValuePairs.toString()

JSONObject json_data = new JSONObject(result);