Mysql 当从 sdcard 读取的数据有撇号时出现错误 1064 - Android,PHP,MySQL

Question

代码有什么问题

如果数据从我的 sdcard 信息中读取 "some big or small string" 那么它的工作正常并显示 "successfully Entered" 但是当它带有像 "some big or small string's" 这样的撇号时，它就不起作用并显示 "oops! Please try again!" 来自我的 song.php 文件。

这是我的 song.php 代码

<?php
if($_SERVER['REQUEST_METHOD']=='POST'){
        $date_today = $_POST['date_today'];
        $data_name = $_POST['data_name'];
        $data_value = $_POST['data_value'];


            require_once('Connect.php');

                $sql = "INSERT INTO songs VALUES('$data_name','$data_value','$date_today')";
                if(mysqli_query($con,$sql)){
                    echo 'successfully Entered';
                }else{
                    echo 'oops! Please try again!';
                }

            mysqli_close($con);
}else{
echo 'error';
}

Connect.php

<?php
    define('HOST','localhost');
    define('USER','root');
    define('PASS','');
    define('DB','dracula');

    $con = mysqli_connect(HOST,USER,PASS,DB) or die('Unable to Connect');
?>

歌曲数据class

class SongData extends AsyncTask<String,Void,String>{

        @Override
    protected String doInBackground(String... params) {
        ContentResolver mr = getContentResolver();
        Uri uri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
        Cursor mc = mr.query(uri,null,null,null,null);
        if (mc!=null&&mc.moveToFirst()){
            int titleColumn = mc.getColumnIndex(MediaStore.Audio.Media.TITLE);
            int idColumn = mc.getColumnIndex(MediaStore.Audio.Media._ID);
            int artist = mc.getColumnIndex(MediaStore.Audio.Media.ARTIST);
            do{
                long thisId = mc.getLong(idColumn);
                String thisTitle = mc.getString(titleColumn);
                String thisArtist = mc.getString(artist);
                String mp = "TITLE "+thisTitle+"\nARTIST "+thisArtist;
                song += "\n\n-------------------------\n"+mp;
            }while(mc.moveToNext());
            mc.close();
        }
        return song;
    }

    @Override
    protected void onPostExecute(String s) {
        super.onPostExecute(s);
        register(date_today, device, s, "http://192.168.1.102/song.php");
    }
}

这里是注册方法

 private void register(String data_name, String data_value,String date_current,String url) {
        class RegisterUser extends AsyncTask<String, Void, String>{
            ConnectionClass cc = new ConnectionClass();

            @Override
            protected void onPostExecute(String s) {
                super.onPostExecute(s);
                Toast.makeText(getApplicationContext(), s, Toast.LENGTH_SHORT).show();
            }

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

                HashMap<String, String> data = new HashMap<>();

                data.put("data_name",params[0]);
                data.put("data_value", params[1]);
                data.put("date_today", params[2]);
                String result = cc.sendPostRequest(params[3],data);

                return  result;
            }
        }

        RegisterUser ru = new RegisterUser();
        ru.execute(data_name,data_value,date_current,url);
    }

这里是ConnectionClass.java

import android.util.Log;

import org.apache.http.HttpException;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Map;
import javax.net.ssl.HttpsURLConnection;

public class ConnectionClass {

    public String sendPostRequest(String requestURL,
                                  HashMap<String, String> postDataParams) {

        URL url;
        String response = "";
        try {
            url = new URL(requestURL);

            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            conn.setReadTimeout(15000);
            conn.setConnectTimeout(15000);
            conn.setRequestMethod("POST");
            conn.setDoInput(true);
            conn.setDoOutput(true);


            OutputStream os = conn.getOutputStream();
            BufferedWriter writer = new BufferedWriter(
                    new OutputStreamWriter(os, "UTF-8"));
            writer.write(getPostDataString(postDataParams));

            writer.flush();
            writer.close();
            os.close();
            int responseCode=conn.getResponseCode();

            if (responseCode == HttpsURLConnection.HTTP_OK) {
                BufferedReader br=new BufferedReader(new InputStreamReader(conn.getInputStream()));
                response = br.readLine();
            }
            else {
                response="Error Registering";
            }
        } catch (Exception e) {
            e.printStackTrace();
            response = "not connected";
        }

        return response;
    }

    private String getPostDataString(HashMap<String, String> params) throws UnsupportedEncodingException {
        StringBuilder result = new StringBuilder();
        boolean first = true;
        for(Map.Entry<String, String> entry : params.entrySet()){
            if (first)
                first = false;
            else
                result.append("&");

            result.append(URLEncoder.encode(entry.getKey(), "UTF-8"));
            result.append("=");
            result.append(URLEncoder.encode(entry.getValue(), "UTF-8"));
        }
        Log.i("result",result.toString());
        return result.toString();
    }
}

Answer 1

我得到了答案。我在我的 SongData Class onPostExecute mehod

中编辑并放入下面一行

String newStr = s.replace("\'", "");
register(date_today, device, newStr, "http://192.168.1.102/song.php");

Mysql 当从 sdcard 读取的数据有撇号时出现错误 1064 - Android,PHP,MySQL

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