Question

我正在使用PDO将数据保存到数据库，但似乎没有保存数据，即使它不会引发错误。我正在使用Android的OKhttp3类将POST个请求发送到名为chatroom.php的PHP文件。

<?PHP
include("PDOConnection.php");

//Define some value
define("ACTION_ADD_ROOM","addRoom");
define("ACTION_SELECT","select");
define("RESULT_SUCCESS",0);
define("RESULT_ERROR",1);
define("RESULT_ROOM_EXISTS",2);

$action=$_POST["action"];
$result=RESULT_ERROR;

if(isset($action))
{
    if($action==ACTION_ADD_ROOM)
    {
        $name=$_POST["name"];
        $chatdesc=$_POST["chatdesc"];

        if(isset($_FILES['chatImage'])) 
            $image=$_FILES['chatImage']['name'];

    }
    else if($action==ACTION_SELECT)
    {
        $Id=$_POST["id"];   
    }

    if(ACTION_ADD_ROOM==$action )
    {
        //check exists Room
        if(isExistRoom($cnn,$name))
        {
            $result=RESULT_ROOM_EXISTS;
        }
        else
        {
            insertChatroom($cnn,$name,$chatdesc,$image);
            $result=RESULT_SUCCESS;
        }
    }
    else if(ACTION_SELECT==$action)
    {
        if(login($cnn,$Id))
        {
            $result=RESULT_SUCCESS;
            //login success
        }
        else
        {
            //login fail
            $result=RESULT_ERROR;
        }
    }

    if((isset($_FILES['chatImage']) && $result==RESULT_SUCCESS && ACTION_ADD_ROOM==$action))
    {
        $errors= array();
        $file_name = $_FILES['chatImage']['name'];
        $file_size =$_FILES['chatImage']['size'];
        $file_tmp =$_FILES['chatImage']['tmp_name'];
        $file_type=$_FILES['chatImage']['type'];

        $expensions= array("jpeg","jpg","png");

        if(empty($errors)==true)
        {
            $id=returnID($cnn,$name);

            if(!is_dir("uploads/Rooms/".$id))
                mkdir("uploads/Rooms/".$id, 0700);

            move_uploaded_file($file_tmp,"uploads/Rooms/".$id."/".$file_name);
        }else{
            print_r($errors);
      }
   }
}

echo $result;
function insertChatroom($cnn,$name,$chatdesc,$image)
{
    try
    {
        $query = "INSERT INTO chatroom (name, 'chatdesc', image) VALUES(?, ?, ?)";
        $stmt = $cnn->prepare($query);
        $stmt->execute([$name, $chatdesc, $image]);
    }
    catch(\PDOException $e)
    {
        echo "ERROR  " . $e->getMessage();
    }
}

function isExistRoom($cnn,$name)
{
    $query="SELECT * FROM chatroom WHERE name == ?";
    $stmt=$cnn->prepare($query);
    $stmt->bindParam(1,$name);
    $stmt->execute();

    $rowcount=$stmt->rowCount();
    //for debug
    //var_dump($rowcount);
    return $rowcount;
}

function login($cnn,$Email,$Password)
{
    return 1;
}

function returnID($cnn,$name)
{
    $query="SELECT * FROM chatroom WHERE name = ? ";
    $stmt=$cnn->prepare($query);
    $stmt->bindParam(1,$name);

    $stmt->execute();
    $result = $stmt->fetchColumn();

    //for debug
    //var_dump($rowcount);
    return $result;
}
?>

我认为使用HTML页面或Android发送POST请求之间没有区别，但以防万一，这是我的Android代码：

 package com.example.android.chatroom.Activities.RegisterActivity;

import android.content.Context;
import android.location.LocationListener;
import android.os.AsyncTask;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.util.Log;
import android.view.View;
import android.widget.ProgressBar;
import com.example.android.chatroom.Tags;
import com.example.android.chatroom.chatroom;
import java.io.File;
import java.io.IOException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import okhttp3.MediaType;
import okhttp3.MultipartBody;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;


public class ChatroomNetworkCallTask extends AsyncTask<String, Void, String> {
    ProgressBar mProgress;
    FloatingActionButton btnRegister;
    View view;
    Context context;
    //Activity ReciveActivity;
    File imageFile;
    chatroom Rooms=new chatroom();
    public static String Result;
    private static final MediaType MEDIA_TYPE = MediaType.parse("image/*");
    private static final String IMGUR_CLIENT_ID = "...";
    private OkHttpClient client=new OkHttpClient();
    public ChatroomNetworkCallTask(chatroom Rooms, File ImageFile, Context mconext,View view)
    {
        this.context=mconext;
        if(ImageFile!=null) {
            this.imageFile = ImageFile;
            Log.d("getrealfile:", "NEtwork:  " + imageFile.getName() + " And Absolute: " + imageFile.getAbsolutePath());
        }else
        {
            Log.d("getrealfile:","Image not set to update");
        }
        this.Rooms=Rooms;
        this.view=view;
        mProgress= Rooms.getPbar();
        btnRegister=Rooms.getBtnSend();

    }

    @Override
    protected void onPreExecute() {
        super.onPreExecute();
        if(mProgress!=null)
            mProgress.setVisibility(View.VISIBLE);
        if (btnRegister!=null)
            btnRegister.setEnabled(false);
    }

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

        try {
            Log.d("FIlePath:",imageFile.getAbsolutePath());
            RequestBody requestBody = new MultipartBody.Builder()
                        .setType(MultipartBody.FORM)
                        .addFormDataPart("action", Rooms.getStatus())
                        .addFormDataPart("name", Rooms.getChatroomName())
                        .addFormDataPart("chatdesc", Rooms.getChatroomDesc())
                         .addFormDataPart("chatImage", "imgRoom.jpg",
                            RequestBody.create(MEDIA_TYPE, imageFile))

                        .build();


            Request request = new Request.Builder()
                    .header("Authorization", "Client-ID " + IMGUR_CLIENT_ID)
                    .url(Tags.ChatroomAddress)
                    .post(requestBody)
                    .build();

            Response response = client.newCall(request).execute();

            Result=response.body().string().toString();
            Log.d("resultValue:",Result);
            Pattern p = Pattern.compile("-?\\d+");
            Matcher m = p.matcher(Result);
            StringBuilder build = new StringBuilder();
            while (m.find()) { build.append(m.group()); }


            return build.toString();




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


        return  null;
    }

    @Override
    protected void onPostExecute(String o) {
        super.onPostExecute(o);
        Log.d("valueOfo:",""+o);
        String msg = null;

        if(o != null && o.trim().matches(".*\\d+.*")){

            switch (o.toString().trim().toString().trim()) {
                case "0":
                    msg = "اطلاعات شما با موفقیت ثبت شد";
                    break;
                case "1":
                    msg = "خطا در ثبت اطلاعات";
                    break;
                default:
                    msg="خطایی بس ناجوانمردانه";
            }

        }



       Snackbar.make(view, msg != null ? msg : "لطفا مجددا تلاس فرمایید",Snackbar.LENGTH_SHORT).show();

        if(mProgress!=null)
            mProgress.setVisibility(View.INVISIBLE);
        btnRegister.setEnabled(true);

    }

}

Answer 1

首先将$cnn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);添加到您的代码中，以便PDO实际抛出异常。然后您将收到错误：

您的SQL语法有错误;检查与MySQL服务器版本对应的手册，以便在＃chat;＆＃39;，chatdesc＆＃39;，图像）附近使用正确的语法

这是由查询中的单引号引起的。删除它们，它可能会起作用

数据不会使用PDO保存在数据库中

1 个答案: