{“success”：0，“message”：“必填字段丢失”}

时间：2015-04-19 18:26:14

标签： php android json

当我在网络浏览器中测试我的PHP文件时，我收到消息... {"success":0,"message":"required field(s) is missing"}。我正在尝试将我的Android应用程序中的数据添加到本地主机上的数据库中，并且不知道缺少的必需字段是什么。

我的完整php是：

  <?php 

    $response = array();

    $con=mysql_connect("localhost", "root");
    mysql_select_db("independentretailers",$con); 

    if (isset($_POST['Retail Name']) && isset($_POST['Type of Business']) &&           isset($_POST['Location'])&& isset($_POST['GPS'])&& isset($_POST['Phone      Number'])&& isset($_POST['Email'])&& isset($_POST['Password'])) {


    $RetailName = $_POST['Retail Name']; 
    $TypeofBusiness = $_POST['Type of Business'];
    $Location = $_POST['Location'];
    $GPS = $_POST['GPS'];
    $PhoneNumber = $_POST['Phone Number'];
    $Email = $_POST['Email'];
    $Password = $_POST['Password'];

    $result = mysql_query("INSERT INTO retailer(Retail Name, Type of Business,      Location, GPS, Phone Number, Email, Password)    VALUES('$RetailName','$TypeofBusiness','$Location','$GPS','$PhoneNumber','$Email    ','$Password')");

   // check if row inserted or not
    if ($result) {
        // successfully inserted into database
        $response["success"] = 1;
        $response["message"] = "Retailer successfully created.";

        // 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);
     }
     ?>

我的JSON Parse类是：     package com.example.independentretailers; 

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.List;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.utils.URLEncodedUtils;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONException;
import org.json.JSONObject;

import android.util.Log;

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 mehtod
  public JSONObject makeHttpRequest(String url, String method,
        List<NameValuePair> nameValuePairs) {

    // Making HTTP request
    try {

        // check for request method
        if(method == "POST"){
            // request method is POST
            // defaultHttpClient
            DefaultHttpClient httpClient = new DefaultHttpClient();
            HttpPost httpPost = new HttpPost(url);
            httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

            HttpResponse httpResponse = httpClient.execute(httpPost);
            HttpEntity httpEntity = httpResponse.getEntity();
            is = httpEntity.getContent();

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

            HttpResponse httpResponse = httpClient.execute(httpGet);
            HttpEntity httpEntity = httpResponse.getEntity();
            is = httpEntity.getContent();
        }           


    } 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());
//              }
    try {

        jObj = new JSONObject(json);
    } catch (JSONException e) {
        Log.e("JSON Parser", "Error parsing data " + e.toString());
    }
            // return JSON String
            return jObj;
}
}

我调用我的php文件的类是：

  package com.example.independentretailers;
  import java.io.InputStream;
  import java.util.ArrayList;
  import java.util.List;

  import org.apache.http.NameValuePair;
  import org.apache.http.message.BasicNameValuePair;
  import org.json.JSONException;
  import org.json.JSONObject;

  import com.example.independentretailers.R;
  import android.app.Activity; 
  import android.app.ProgressDialog;
  import android.os.AsyncTask;
  import android.os.Bundle; 
  import android.os.StrictMode;
  import android.util.Log;
  import android.view.View;
  import android.widget.Button;
  import android.widget.EditText;

  public class retailersignup extends Activity {
  private ProgressDialog pDialog;

  JSONParser jsonParser = new JSONParser();

  EditText etRetailName, etTypeofBusiness, etLocation, etGPS, etPhoneNumber,    etEmail, etPassword;
  Button bSave;

private static String url_create_reatiler = "http://10/0.2.2/tutorial2.php";

private static final String TAG_SUCCESS = "success";

 // @SuppressLint("NewApi")
 @Override
 public void onCreate (Bundle savedInstanceState){
    super.onCreate(savedInstanceState);

    //setup strict mode policy 
    //StrictMode.ThreadPolicy policy = new     StrictMode.ThreadPolicy.Builder().permitAll().build();
    //StrictMode.setThreadPolicy(policy);
    setContentView(R.layout.retailersignup);

    //for Retail name
    etRetailName = (EditText) findViewById(R.id.editText1);
    //for type of business 
    etTypeofBusiness = (EditText) findViewById(R.id.editText2);
    //for Location
    etLocation = (EditText) findViewById(R.id.editText3);
    //for GPS
    etGPS = (EditText) findViewById(R.id.editText4); 
    //for Phone Number
    etPhoneNumber = (EditText) findViewById(R.id.editText5);
    //for email
    etEmail = (EditText) findViewById(R.id.editText6);
    //for password
    etPassword = (EditText) findViewById(R.id.editText7);
    //setting up ID for the button 
    bSave = (Button) findViewById(R.id.button1);
    //setting up onclick listener 
    bSave.setOnClickListener(new View.OnClickListener(){


        InputStream is = null;
        @Override 
        public void onClick(View arg0){
                 new CreateNewRetailer().execute();
        }
    });
}

class CreateNewRetailer extends AsyncTask<String, String, String>{ 

protected String doInBackground(String...args){
            //storing values inside edit texts inside strings 
            String RetailName = etRetailName.getText().toString();
            String TypeofBusiness = etTypeofBusiness.getText().toString(); 
            String Location = etLocation.getText().toString();
            String GPS = etGPS.getText().toString();
            String PhoneNumber = etPhoneNumber.getText().toString(); 
            String Email = etEmail.getText().toString(); 
            String Password = etPassword.getText().toString(); 

            //setting name pair values 
            List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
            //adding string values inside the name value pairs 
            nameValuePairs.add(new BasicNameValuePair("Retail Name", RetailName));
            nameValuePairs.add(new BasicNameValuePair("Type of Business",       TypeofBusiness));
            nameValuePairs.add(new BasicNameValuePair("Location",    Location));
            nameValuePairs.add(new BasicNameValuePair("GPS", GPS));
            nameValuePairs.add(new BasicNameValuePair("Phone Number", PhoneNumber));
            nameValuePairs.add(new BasicNameValuePair("Email", Email));
            nameValuePairs.add(new BasicNameValuePair("Password",      Password));

            JSONObject json = jsonParser.makeHttpRequest   (url_create_reatiler, "POST", nameValuePairs);
            //setting up the connection inside the try catch 
            // check log cat fro response

            Log.d("Create Response", json.toString());
            try{ 
                //setting up the default client
                int success = json.getInt(TAG_SUCCESS);
            }
                catch(JSONException e){
                    e.printStackTrace();
                }

return null;
}

protected void onPostExcute(String file_url){
pDialog.dismiss();

}
}
}

我已经坚持这个问题几天了，任何帮助都会非常感激。

1 个答案:

答案 0 :(得分：0)

在浏览器中测试时，是否在路径中添加了任何参数？如果没有，该文件的输出是正确的。如果你确实添加了参数，这是你得到的输出，你必须看看你添加的参数是否与脚本期望获得的参数一致。

另外，你正在使用那些空间让自己变得更难。请参阅此部分（在代码中依此类推）：

if (isset($_POST['Retail Name']) && isset($_POST['Type of Business']) ...

为了便于访问（因此您不必跟踪所有这些空格和标签），您应该使用下划线：

if (isset($_POST['Retail_Name']) && isset($_POST['Type_of_Business']) ...

虽然这是我个人的偏好（我不太确定如何使用空格）。无论如何，您可以像这样添加链接参数：

yourfile.php？零售名称=测试名称和业务类型=测试业务......

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