String类型BR无法转换成的JSONObject

String类型BR无法转换成的JSONObject

本文介绍了的值小于错误; java.lang.String类型BR无法转换成的JSONObject的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我有问题的字符串不能转换为JSONObject.Anyone可以帮助解决这个问题?谢谢,非常AP preciate帮助。

 < PHP
    的mysql_connect(localhost的,测试,);
    mysql_select_db(测试);
    $响应=阵列();
    $全称= $ _ POST [全名];
    $结果= mysql_query(选择全名,联系人,DATE_FORMAT(reserveDate,'%E-%C-%Y')reserveDate,
            DATE_FORMAT(reserveTime,'%H:%I%P')reserveTime,
            PAX,tableNumber
            利用储备内连接的客户(的customerID)
            其中,全名= $全名);
    如果(mysql_num_rows($结果)大于0){
        $响应[储备] =阵列();
        而($行= mysql_fetch_array($结果)){

            //临时用户阵

            $ RESERV =阵列();

            $ RESERV [全名] = $行[全名];
            $ RESERV [联系] = $行[联系];
            $ RESERV [reserveDate] = $行[reserveDate];
            $ RESERV [reserveTime] = $行[reserveTime];
            $ RESERV [百富] = $行[百富]。
            $ RESERV [tableNumber] = $行[tableNumber];
            //推单一产品到最终响应数组

            array_push($响应[RESERV],$ RESERV);

        }

        // 成功
        $响应[成功] = 1;
        //呼应JSON响应
        回声json_en code($响应);
    } 其他 {
        $响应[成功] = 0;
        $响应[信息] =找不到用户;
        //回声没有用户JSON
        回声json_en code($响应);
    }
    ?>
 

JSONPARSER类

 包com.example.easy;

进口java.io.BufferedReader中;
进口java.io.IOException异常;
进口的java.io.InputStream;
进口java.io.InputStreamReader中;
进口java.io.UnsupportedEncodingException;
进口的java.util.List;

进口org.apache.http.HttpEntity;
进口org.apache.http.Htt presponse;
进口org.apache.http.NameValuePair;
进口org.apache.http.client.ClientProtocolException;
进口org.apache.http.client.entity.UrlEn codedFormEntity;
进口org.apache.http.client.methods.HttpGet;
进口org.apache.http.client.methods.HttpPost;
进口org.apache.http.client.utils.URLEn codedUtils;
进口org.apache.http.impl.client.DefaultHttpClient;
进口org.json.JSONException;
进口org.json.JSONObject;

进口android.util.Log;

公共类JSONParser {

静态的InputStream是= NULL;
静态的JSONObject jObj = NULL;
静态JSON字符串=;

//构造
公共JSONParser(){

}

//功能得到URL JSON
//通过HTTP POST或GET方法
公众的JSONObject makeHtt prequest(URL字符串,字符串的方法,
        名单<的NameValuePair> PARAMS){

    //使HTTP请求
    尝试 {

        //检查请求的方法
        如果(方法==POST){
            //请求方法是POST
            // defaultHttpClient
            DefaultHttpClient的HttpClient =新DefaultHttpClient();
            HttpPost httpPost =新HttpPost(URL);
            httpPost.setEntity(新UrlEn codedFormEntity(PARAMS));

            HTT presponse HTT presponse = httpClient.execute(httpPost);
            HttpEntity httpEntity = HTT presponse.getEntity();
            是= httpEntity.getContent();

        }否则,如果(方法==GET){
            //请求方法是GET
            DefaultHttpClient的HttpClient =新DefaultHttpClient();
            字符串中的paramString = URLEn codedUtils.format(PARAMS,UTF-8);
            网址+ =? +中的paramString;
            HTTPGET HTTPGET =新HTTPGET(URL);

            HTT presponse HTT presponse = httpClient.execute(HTTPGET);
            HttpEntity httpEntity = HTT presponse.getEntity();
            是= httpEntity.getContent();
        }


    }赶上(UnsupportedEncodingException E){
        e.printStackTrace();
    }赶上(ClientProtocolException E){
        e.printStackTrace();
    }赶上(IOException异常E){
        e.printStackTrace();
    }

    尝试 {
        的BufferedReader读卡器=新的BufferedReader(新的InputStreamReader(
                是,ISO-8859-1),8);
        StringBuilder的SB =新的StringBuilder();
        串线= NULL;
        而((行= reader.readLine())!= NULL){
            sb.append(行+\ N);
        }

        // JSON = sb.toString();
        。JSON = sb.toString()子(0,sb.toString()长度() -  1);
        的System.out.println(jsonstring =+ JSON);
        is.close();
    }赶上(例外五){
        Log.e(缓冲区错误,转换的结果错误+ e.toString());
    }

    //尝试解析字符串到一个JSON对象
    尝试 {
        jObj =新的JSONObject(JSON);
    }赶上(JSONException E){
        Log.e(JSON解析器,错误分析数据+ e.toString());
    }

    //返回JSON字符串
    返回jObj;

}
 

}

有错误发生在ReserveInfo类。得到这个错误的价值。

 包com.example.easy;

进口的java.util.ArrayList;
进口java.util.Arrays中;
进口java.util.LinkedHashSet;
进口的java.util.List;

进口org.apache.http.NameValuePair;
进口org.apache.http.message.BasicNameValuePair;
进口org.json.JSONArray;
进口org.json.JSONException;
进口org.json.JSONObject;

进口android.app.Activity;
进口android.app.AlertDialog;
进口android.app.ProgressDialog;
进口android.content.DialogInterface;
进口android.os.AsyncTask;
进口android.os.Bundle;
进口android.util.Log;
进口android.view.View;
进口android.view.View.OnClickListener;
进口android.widget.ArrayAdapter;
进口android.widget.AutoCompleteTextView;
进口android.widget.Button;
进口android.widget.ScrollView;
进口android.widget.TextView;
进口android.widget.Toast;

公共类CUSTNAME扩展活动实现OnClickListener {
    TextView的custinfo2,lblempty2;


        按钮btnsearch1;
        TextView的custinfo,lbl​​empty;
        滚动型svcustdetails,svreserve;

        AutoCompleteTextView txtcustname;
        串联系人[];
        INT ARRAYSIZE;
        私人ProgressDialog pDialog;

        JSONParser jParser =新JSONParser();
        JSONParser jParser2 =新JSONParser();
        私有静态最后弦乐TAG_SUCCESS =成功;
        私有静态最后弦乐TAG_RESERV =RESERV;
        私有静态最后弦乐TAG_FULLNAME =全名;
        私有静态最后弦乐TAG_CONTACT =接触;
        私有静态最后弦乐TAG_DATE =reserveDate;
        私有静态最后弦乐TAG_TIME =reserveTime;
        私有静态最后弦乐TAG_PAX =百富;
        私有静态最后弦乐TAG_TABLE =tableNumber;
        JSONArray RESERV = NULL;
        JSONArray reserv2 = NULL;
        的JSONObject json2;
        字符串contactno;

    公共无效的onCreate(包savedInstanceState){
        super.onCreate(savedInstanceState);
        的setContentView(R.layout.custname);

        btnsearch1 =(按钮)findViewById(R.id.btnsearch);

        svcustdetails =(滚动型)findViewById(R.id.svcustdetails);
        svreserve =(滚动型)findViewById(R.id.svreserve);
        custinfo2 =(TextView中)findViewById(R.id.custinfo2);

        txtcustname =(AutoCompleteTextView)findViewById(R.id.txtcustname);

         txtcustname =(AutoCompleteTextView)findViewById(R.id.txtcustname);

            btnsearch1 =(按钮)findViewById(R.id.btnsearch1);
            lblempty2 =(TextView中)findViewById(R.id.lblempty2);

        新LoadContact()执行()。

        btnsearch1.s​​etOnClickListener(新OnClickListener(){
            公共无效的onClick(最终查看V){
                如果(txtcustname.getText()。的toString()。equalsIgnoreCase()){
                    Toast.makeText(Custname.this,请输入客户名称,Toast.LENGTH_SHORT).show();
                }其他{
                    复位();
                    新ReserveInfo()执行()。
                }
            }
        });
    }

    类LoadContact扩展的AsyncTask<字符串,字符串,字符串> {
        @覆盖
        在preExecute保护无效(){
            super.on preExecute();
        }

        保护字符串doInBackground(字符串参数... args){
            名单<的NameValuePair> PARAMS =新的ArrayList<的NameValuePair>();
            JSONObject的JSON = jParser.makeHtt prequest(http://10.0.2.2/Laicamproject/checkName.php,GET,则params);
            //检查日志猫JSON效应初探
            Log.d(全名,json.toString());
            联系方式=新的String [ARRAYSIZE]

            尝试 {
                INT成功= json.getInt(TAG_SUCCESS);
                如果(成功== 1){
                    RESERV = json.getJSONArray(TAG_RESERV);
                    ARRAYSIZE = reserv.length();
                    联系方式=新的String [ARRAYSIZE]
                    对于(INT一= 0; A< ARRAYSIZE; A ++){
                         JSONObject的C = reserv.getJSONObject(一);
                        联系人[A] = c.getString(TAG_FULLNAME);
                    }
                } 其他 {
                    的System.out.println(找不到用户);
                }
            }赶上(JSONException E){
                的System.out.println(E3+ e.toString());
            }

            返回null;
        }


        保护无效onPostExecute(字符串file_url){
            // ArrayList中有重复的字符串
            名单<字符串> dupList =(名单<字符串>)Arrays.asList(联系人);

            //转换的ArrayList到HashSet的删除重复
            LinkedHashSet<字符串> listToSet =新LinkedHashSet<字符串>(dupList);

            //创建ArrayList的不重复的值
            名单<字符串> contlist =新的ArrayList<字符串>(listToSet);

            的System.out.println(客户名单+ contlist);

            ArrayAdapter<字符串>适配器=新的ArrayAdapter<字符串>(Custname.this,android.R.layout.simple_dropdown_item_1line,contlist);
            //设置适配器
            txtcustname.setAdapter(适配器);
            txtcustname.setThreshold(1);
        }

    }

    类ReserveInfo扩展的AsyncTask<字符串,字符串,字符串> {

        @覆盖
        在preExecute保护无效(){
            super.on preExecute();
            pDialog =新ProgressDialog(Custname.this);
            pDialog.setMessage(加载预约);
            pDialog.setIndeterminate(假);
            pDialog.setCancelable(假);
            pDialog.show();
        }

        保护字符串doInBackground(字符串参数... args){
            字符串N = txtcustname.getText()的toString();
            名单<的NameValuePair> PARAMS =新的ArrayList<的NameValuePair>();
            params.add(新BasicNameValuePair(TAG_FULLNAME,N));
            json2 = jParser2.makeHtt prequest(http://10.0.2.2/Laicamproject/cName.php,POST,则params);
            的System.out.println(PARAMS+参数);
            尝试 {
                reserv2 = json2.getJSONArray(TAG_RESERV);
                的System.out.println(保留+ reserv2.toString());
                INT I = 0;
            }赶上(JSONException E){
                // TODO自动生成的catch块
                的System.out.println(E1 ==+ e.toString());
            }
            返回null;
        }

        保护无效onPostExecute(字符串file_url){
            pDialog.dismiss();
            INT NUM = 1;
            的JSONObject C2;
            尝试 {
                INT成功= json2.getInt(TAG_SUCCESS);
                如果(成功== 1){
                    的for(int i = 0; I< reserv2.length();我++){
                        C2 = reserv2.getJSONObject(ⅰ);
                        //System.out.println("c2.getString(TAG_CONTACT).==="+c2.getString(TAG_CONTACT));
                        //System.out.println("c2.getString(TAG_FULLNAME).==="+c2.getString(TAG_FULLNAME));
                        custinfo2.setText(名称\ T:+ c2.getString(TAG_FULLNAME)
                                +\ nPhone \ t+ c2.getString(TAG_CONTACT));

                        lblempty2.append(\ N [+数字+]+日期\ t \ t+ c2.getString(TAG_DATE)
                                    +\ñ\ t时间\ t \ t+ c2.getString(TAG_TIME)
                                    +\ñ\ t大同\ t \ t \ t+ c2.getString(TAG_PAX)
                                    +\ñ\ T台上的\ t \ t+ c2.getString(TAG_TABLE)+\ N);
                    }
                }其他{
                    showAlert();
                }

            }赶上(JSONException E){
                // TODO自动生成的catch块
                的System.out.println(E2 ==+ e.toString());
        }
    }

        公共无效的onClick(视图v){
            // TODO自动生成方法存根

        }
    }

        @覆盖
    公共无效的onClick(视图v){
        // TODO自动生成方法存根
    }

    公共无效showAlert(){
        Custname.this.runOnUiThread(新的Runnable(){
            公共无效的run(){
                AlertDialog.Builder建设者=新AlertDialog.Builder(Custname.this);
                builder.setTitle(没有联系电话找到)
                       .setCancelable(假)
                       .setPositiveButton(OK,新DialogInterface.OnClickListener(){
                           公共无效的onClick(DialogInterface对话框,INT ID){
                               txtcustname.setText();
                               复位();
                           }
                       });
                AlertDialog警报= builder.create();
                alert.show();
            }
        });
    }

    公共无效复位(){
        lblempty2.setText();
        custinfo2.setText();
    }
}
 

解决方案

我接过来一看你的PHP和,对我来说,似乎是根是一个 JSONArray 和不是的JSONObject 。你的 makeHtt prequest 应该返回的 JSONArray 代替的JSONObject

此外,在Java的字符串比较是通过等于的方法进行,==检查字符串的参考。

例如

 如果(方法==POST)
 

的if-else 分公司也

I'm having problem with string cannot convert to JSONObject.Anyone could help to solve this problem? Thanks and very appreciate for helping.

<?php
    mysql_connect("localhost","test","");
    mysql_select_db("test");
    $response = array();
    $fullname=$_POST["fullname"];
    $result = mysql_query("select fullname,contact, DATE_FORMAT(reserveDate,'%e-%c-%Y') reserveDate,
            DATE_FORMAT(reserveTime,'%h:%i %p') reserveTime,
            pax,tableNumber
            from reserve inner join customer using (customerID)
            where fullname=$fullname" );
    if (mysql_num_rows($result) > 0) {
        $response["reserve"] = array();
        while ($row = mysql_fetch_array($result)) {

            // temp user array

            $reserv = array();

            $reserv["fullname"] = $row["fullname"];
            $reserv["contact"] = $row["contact"];
            $reserv["reserveDate"] = $row["reserveDate"];
            $reserv["reserveTime"] = $row["reserveTime"];
            $reserv["pax"] = $row["pax"];
            $reserv["tableNumber"] = $row["tableNumber"];
            // push single product into final response array

            array_push($response["reserv"], $reserv);

        }

        // success
        $response["success"] = 1;
        // echoing JSON response
        echo json_encode($response);
    } else {
        $response["success"] = 0;
        $response["message"] = "No user found";
        // echo no users JSON
        echo json_encode($response);
    }
    ?>

JSONPARSER class

package com.example.easy;

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 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
            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();

        }else if(method == "GET"){
            // 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();
        }


    } 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");
        }

        //json = sb.toString();
        json = sb.toString().substring(0, sb.toString().length()-1);
        System.out.println("jsonstring ="+json);
        is.close();
    } 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;

}

}

There is an error occur in ReserveInfo class. Get this error" value .

package com.example.easy;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.LinkedHashSet;
import java.util.List;

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

import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.Button;
import android.widget.ScrollView;
import android.widget.TextView;
import android.widget.Toast;

public class Custname extends Activity implements OnClickListener {
    TextView custinfo2,lblempty2;


        Button btnsearch1;
        TextView custinfo,lblempty;
        ScrollView svcustdetails, svreserve;

        AutoCompleteTextView txtcustname ;
        String Contacts[];
        int arraysize;
        private ProgressDialog pDialog;

        JSONParser jParser = new JSONParser();
        JSONParser jParser2 = new JSONParser();
        private static final String TAG_SUCCESS = "success";
        private static final String TAG_RESERV = "reserv";
        private static final String TAG_FULLNAME = "fullname";
        private static final String TAG_CONTACT = "contact";
        private static final String TAG_DATE = "reserveDate";
        private static final String TAG_TIME = "reserveTime";
        private static final String TAG_PAX = "pax";
        private static final String TAG_TABLE = "tableNumber";
        JSONArray reserv = null;
        JSONArray reserv2 = null;
        JSONObject json2;
        String contactno;

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.custname);

        btnsearch1= (Button) findViewById(R.id.btnsearch);

        svcustdetails=(ScrollView)findViewById(R.id.svcustdetails);
        svreserve=(ScrollView)findViewById(R.id.svreserve);
        custinfo2=(TextView)findViewById(R.id.custinfo2);

        txtcustname = (AutoCompleteTextView)findViewById(R.id.txtcustname);

         txtcustname = (AutoCompleteTextView)findViewById(R.id.txtcustname);

            btnsearch1= (Button) findViewById(R.id.btnsearch1);
            lblempty2= (TextView)findViewById(R.id.lblempty2);

        new LoadContact().execute();

        btnsearch1.setOnClickListener(new OnClickListener() {
            public void onClick(final View v) {
                if(txtcustname.getText().toString().equalsIgnoreCase("")){
                    Toast.makeText(Custname.this,"Please enter customer name", Toast.LENGTH_SHORT).show();
                }else{
                    reset();
                    new ReserveInfo().execute();
                }
            }
        });
    }

    class LoadContact extends AsyncTask<String, String, String> {
        @Override
        protected void onPreExecute() {
            super.onPreExecute();
        }

        protected String doInBackground(String... args) {
            List<NameValuePair> params = new ArrayList<NameValuePair>();
            JSONObject json = jParser.makeHttpRequest("http://10.0.2.2/Laicamproject/checkName.php", "GET", params);
            // Check log cat for JSON reponse
            Log.d("All Name: ", json.toString());
            Contacts=new String[arraysize];

            try {
                int success = json.getInt(TAG_SUCCESS);
                if (success == 1) {
                    reserv = json.getJSONArray(TAG_RESERV);
                    arraysize=reserv.length();
                    Contacts=new String[arraysize];
                    for(int a=0;a<arraysize;a++){
                         JSONObject c = reserv.getJSONObject(a);
                        Contacts[a]=c.getString(TAG_FULLNAME);
                    }
                } else {
                    System.out.println("no user found");
                }
            } catch (JSONException e) {
                System.out.println("e3"+e.toString());
            }

            return null;
        }


        protected void onPostExecute(String file_url) {
            //ArrayList with duplicates String
            List<String> dupList = (List<String>) Arrays.asList(Contacts);

            //Converting ArrayList to HashSet to remove duplicates
            LinkedHashSet<String> listToSet = new LinkedHashSet<String>(dupList);

            //Creating Arraylist without duplicate values
            List<String> contlist = new ArrayList<String>(listToSet);

            System.out.println("Customer list: " + contlist );

            ArrayAdapter<String> adapter = new ArrayAdapter<String>(Custname.this,android.R.layout.simple_dropdown_item_1line,contlist  );
            // Set the adapter
            txtcustname.setAdapter(adapter);
            txtcustname.setThreshold(1);
        }

    }

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

        @Override
        protected void onPreExecute() {
            super.onPreExecute();
            pDialog = new ProgressDialog(Custname.this);
            pDialog.setMessage("Loading reservation");
            pDialog.setIndeterminate(false);
            pDialog.setCancelable(false);
            pDialog.show();
        }

        protected String doInBackground(String... args) {
            String n=txtcustname.getText().toString();
            List<NameValuePair> params = new ArrayList<NameValuePair>();
            params.add(new BasicNameValuePair(TAG_FULLNAME,n ));
            json2 = jParser2.makeHttpRequest("http://10.0.2.2/Laicamproject/cName.php","POST", params);
            System.out.println("params"+params);
            try {
                reserv2 = json2.getJSONArray(TAG_RESERV);
                System.out.println("Reservation"+reserv2.toString());
                int i=0;
            } catch (JSONException e) {
                // TODO Auto-generated catch block
                System.out.println("e1=="+e.toString());
            }
            return null;
        }

        protected void onPostExecute(String file_url) {
            pDialog.dismiss();
            int num=1;
            JSONObject c2;
            try {
                int success = json2.getInt(TAG_SUCCESS);
                if (success == 1) {
                    for(int i=0;i<reserv2.length();i++){
                        c2 = reserv2.getJSONObject(i);
                        //System.out.println("c2.getString(TAG_CONTACT).==="+c2.getString(TAG_CONTACT));
                        //System.out.println("c2.getString(TAG_FULLNAME).==="+c2.getString(TAG_FULLNAME));
                        custinfo2.setText("Name \t: "+ c2.getString(TAG_FULLNAME)
                                +"\nPhone \t: " + c2.getString(TAG_CONTACT));

                        lblempty2.append("\n["+num+"] "+"Date \t\t: "+ c2.getString(TAG_DATE)
                                    +"\n\t Time \t\t: " + c2.getString(TAG_TIME)
                                    +"\n\t Pax \t\t\t: "+ c2.getString(TAG_PAX)
                                    +"\n\t Table \t\t: "+ c2.getString(TAG_TABLE)+"\n");
                    }
                }else{
                    showAlert();
                }

            } catch (JSONException e) {
                // TODO Auto-generated catch block
                System.out.println("e2=="+e.toString());
        }
    }

        public void onClick(View v) {
            // TODO Auto-generated method stub

        }
    }

        @Override
    public void onClick(View v) {
        // TODO Auto-generated method stub
    }

    public void showAlert(){
        Custname.this.runOnUiThread(new Runnable() {
            public void run() {
                AlertDialog.Builder builder = new AlertDialog.Builder(Custname.this);
                builder.setTitle("No contact number found")
                       .setCancelable(false)
                       .setPositiveButton("OK", new DialogInterface.OnClickListener() {
                           public void onClick(DialogInterface dialog, int id) {
                               txtcustname.setText("");
                               reset();
                           }
                       });
                AlertDialog alert = builder.create();
                alert.show();
            }
        });
    }

    public void reset(){
        lblempty2.setText("");
        custinfo2.setText("");
    }
}
解决方案

I took a look to your php and, to me, seems that the root is a JSONArray and not a JSONObject. Your makeHttpRequest should return a JSONArray instead of a JSONObject

Also String comparison in Java is performed through the equals method, == check the String's reference.

For instance

if(method == "POST")

and if-else branch also

这篇关于的值小于错误; java.lang.String类型BR无法转换成的JSONObject的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

08-05 08:19