Php 已成功更新响应，但未更新表

我正在用android开发应用程序。从那里，我想更新表中的电子邮件

数据库在MySQL中

我通过在浏览器中执行来检查我的PHP代码。

它可以正常工作并更新我的数据库，但当

我使用android运行文件，但它不更新表

但返回响应成功更新

我的Android代码

/**
 * Background Async Task to Create new product
 * */
class UpdateEmail extends AsyncTask<String, String, String> {

    /**
     * Before starting background thread Show Progress Dialog
     * */
    @Override
    protected void onPreExecute() {
    super.onPreExecute();
    pDialog = new ProgressDialog(edit_profile.this);
    pDialog.setMessage("Updating....");
    pDialog.setIndeterminate(false);
    pDialog.setCancelable(true);
    pDialog.show();

}

/**
 * Creating product
 * */
protected String doInBackground(String... args) {

    // Building Parameters
    List<NameValuePair> params = new ArrayList<NameValuePair>();

    String abc= email_edit_view.getText().toString();
    SessionSharedPrefences.setUserEmail(getApplicationContext(), abc);
    Log.i("email_edit_view", abc);
    params.add(new BasicNameValuePair("Email", "abc@gmail.com"));
    params.add(new BasicNameValuePair("U_ID", SessionSharedPrefences.getUserEmail(getApplicationContext())));


    // getting JSON Object
    // Note that create product url accepts POST method
    JSONObject json = jsonParser.makeHttpRequest(update_url_email_information   ,"POST", params);

    // check log cat fro response
    Log.d("Create Response", json.toString());

    // check for success tag
    try 
    {
        int success = json.getInt(TAG_SUCCESS);

        if (success == 1) 
        {
            Log.i("sucessssssssss", "sucess");
            // closing this screen
        } 
        else
        {
            // failed to create product

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

    }

    return null;
}

/**
 * After completing background task Dismiss the progress dialog
 * **/
protected void onPostExecute(String file_url) {
    // dismiss the dialog once done
    if (pDialog.isShowing()) {
        pDialog.dismiss();
        // progressDialog.setCancelable(true);

        }

    }

}

/**
*创建新产品的后台异步任务
* */
类UpdateEmail扩展了异步任务{
/**
*在启动后台线程显示进度对话框之前
* */
@凌驾
受保护的void onPreExecute（）{
super.onPreExecute（）；
pDialog=新建进度对话框（编辑配置文件。此对话框）；
pDialog.setMessage（“更新…”）；
pDialog.setUndeterminate（假）；
pDialog.setCancelable（真）；
pDialog.show（）；
}
/**
*创造产品
* */
受保护的字符串doInBackground（字符串…args）{
//建筑参数
List params=new ArrayList（）；
字符串abc=email\u edit\u view.getText（）.toString（）；
SessionSharedPrefences.setUserEmail（getApplicationContext（），abc）；
Log.i（“电子邮件编辑视图”，abc）；
参数添加（新的BasicNameValuePair（“电子邮件”）abc@gmail.com"));
add（新的BasicNameValuePair（“U_ID”，SessionSharedPrefences.getUserEmail（getApplicationContext（））））；
//获取JSON对象
//请注意，创建产品url接受POST方法
JSONObject json=jsonParser.makeHttpRequest（更新url电子邮件信息，“POST”，参数）；
//检查cat fro响应日志
d（“创建响应”，json.toString（））；
//检查成功标签
尝试
{
int success=json.getInt（TAG_success）；
如果（成功==1）
{
Log.i（“successss”、“success”）；
//关闭此屏幕
} 
其他的
{
//未能创建产品
}
}
捕获（JSONException e）
{
e、 printStackTrace（）；
}
返回null；
}
/**
*完成后台任务后，关闭“进度”对话框
* **/
受保护的void onPostExecute（字符串文件\u url）{
//完成后关闭对话框
if（pDialog.isShowing（））{
pDialog.disclose（）；
//progressDialog.setCancelable（真）；
}
}
}

我的PHP文件是

<?php


// array for JSON response
$response = array();
// check for required fields

if (isset($_POST['U_ID']) &&  !empty($_POST['U_ID'])&& isset($_POST['Email'])  && !empty($_POST['Email']) ) {
 $U_ID = $_POST['U_ID'];
    $Email_id = $_POST['Email'];

    // include db connect class
    require_once __DIR__ . '/db_connect.php';

    // connecting to db
    $db = new DB_CONNECT();

 //$result = mysql_query("UPDATE `user` SET `Email_id`='$Email_id' WHERE `U_id`= '$U_ID'");
$result = mysql_query("UPDATE `smartshoppingsystem`.`user` SET `Email_id` = '$Email_id' WHERE `user`.`U_id` ='$U_ID'");
    // check if row inserted or not
    if ($result) {
        // successfully inserted into database
        $response["success"] = 1;
        $response["message"] = "Data successfully Updates.";

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

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

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

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

---

如果你真的得到了一个成功的响应，我猜你的android应用程序正在传输一个数据库中不存在的U_ID。这是我在params.add（new BasicNameValuePair（“U_ID”，SessionSharedPrefences.getUserEmail（getApplicationContext（）））行的错误；我正在使用EmailId作为用户ID
public class JSONParser {

    static InputStream is = null;
    static JSONObject jObj = null;
    static String json = "";

    // constructor
    public JSONParser() {

    }

    // function get json from url
    // by making HTTP POST or GET method
    public JSONObject makeHttpRequest(String url, String method,
            List<NameValuePair> params) {

        // Making HTTP request
        try {

            // check for request method
            if(method == "POST"){
                // request method is POST
                // defaultHttpClient
                Log.d("JSONParser","POST METHOD ");

                DefaultHttpClient httpClient = new DefaultHttpClient();
                HttpPost httpPost = new HttpPost(url);
                httpPost.setEntity(new UrlEncodedFormEntity(params));

                HttpResponse httpResponse = httpClient.execute(httpPost);
                HttpEntity httpEntity = httpResponse.getEntity();
                is = httpEntity.getContent();
                Log.d("JSONParser is",is.toString());

            }else if(method == "GET"){
                Log.d("JSONParser","GET METHOD ");


                // request method is GET
                DefaultHttpClient httpClient = new DefaultHttpClient();
                String paramString = URLEncodedUtils.format(params, "utf-8");
                url += "?" + paramString;
                HttpGet httpGet = new HttpGet(url);

                HttpResponse httpResponse = httpClient.execute(httpGet);
                HttpEntity httpEntity = httpResponse.getEntity();
                is = httpEntity.getContent();
                Log.d("JSONParser is",is.toString());

            }           


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

        try {
            BufferedReader reader = new BufferedReader(new InputStreamReader(
                    is, "iso-8859-1"), 8);
            StringBuilder sb = new StringBuilder();
            String line = null;
            while ((line = reader.readLine()) != null) {
                sb.append(line + "\n");
            }
            is.close();
            json = sb.toString();
        } catch (Exception e) {
            Log.e("Buffer Error", "Error converting result " + e.toString());
        }

        // try parse the string to a JSON object
        try {
            jObj = new JSONObject(json);
        } catch (JSONException e) {
            Log.e("JSON Parser", "Error parsing data " + e.toString());
        }

        // return JSON String
        return jObj;

    }
}