Question

我正在开发一个应用程序，它要求用户上传个人资料图片，当用户点击提交按钮时，个人资料图片将存储在数据库中。但是当用户尝试上传他们的个人资料照片时，它会给出错误。

这是我的android代码：

      class ContentDATA extends AsyncTask<String, String, String> {
    @Override
    protected void onPreExecute() {
        super.onPreExecute();
        pDialog = new ProgressDialog(Upload.this);
        pDialog.setMessage("Registering...");
        pDialog.setIndeterminate(false);
        pDialog.setCancelable(false);
        pDialog.show();
    }

    /**
     * getting song json and parsing
     */
    protected String doInBackground(String... args) {
        // Building Parameters
        java.util.List<NameValuePair> params = new ArrayList<NameValuePair>();

        params.add(new BasicNameValuePair("p_category", type[ch2]));
        params.add(new BasicNameValuePair("p_name",p_name));
        params.add(new BasicNameValuePair("p_content", p_content));
        params.add(new BasicNameValuePair("p_price",price));
        params.add(new BasicNameValuePair("prd_pic",profice_pic));


        // getting JSON string from URL
        String json = jsonParser.makeHttpRequest(DATA_URL, "POST",
                params);

        // Check your log cat for JSON reponse
        Log.d("Single Track JSON: ", json);

        try {
            JSONObject jObj = new JSONObject(json);
            if (jObj != null) {
                DATA_F = jObj.getString("cdata");
            }

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

        return null;
    }

这是我的PHP代码：

<?php
    require 'db_connect.php';
     header('Content-Type: image/jpg; charset=utf-8');
    header('Content-Type: bitmap; charset=utf-8');
      header('Content-Type: bitmap; charset=utf-8');

    $p_category=$_REQUEST['p_category'];
    $p_name=$_REQUEST['p_name'];
    $p_content=$_REQUEST['p_content'];
    $p_price=$_REQUEST['p_price'];


$flag["cdata"]="fail";

$flag['code']=0;

if($r=mysql_query("INSERT INTO `v_upload`(`p_category`, `p_name`, `p_content`, `p_price`) VALUES ('$p_category','$p_name','$p_content','$p_price')",$con))
    {
    $id = mysql_insert_id();
$binary=base64_decode($_REQUEST['prd_pic']);
header('Content-Type: bitmap; charset=utf-8'); 
$file = fopen('Images/Product/'.$id.'.jpg', 'wb');
// Create File
fwrite($file,$binary);
fclose($file);
$filename2='Images/Product/'.$id.'.jpg';
if(file_exists($filename2))
{
$flag["cdata"]="Sucess";
$flag['code']=1;
}
else
{
$flag["cdata"]="fail";
$flag['code']=0;
}
}
echo json_encode($flag);
mysql_close($con);

   ?>

错误：靠近

    public void run() {
                if (DATA_F.equals("Sucess")) {
                    alert.showAlertDialog(Upload.this, "Succes",
                            "Upload SucessFully", true);

java.lang.NullPointerException：尝试调用虚方法＆＃39; boolean java.lang.String.equals（java.lang.Object）＆＃39;在null对象上参考

在图像上传中出错

0 个答案: