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Php Android/JSON:org.JSON.JSONException:java.lang.String类型的值无法转换为JSONObject

php android mysql json sqlite

Php Android/JSON:org.JSON.JSONException:java.lang.String类型的值无法转换为JSONObject,php,android,mysql,json,sqlite,Php,Android,Mysql,Json,Sqlite,当我尝试使用托管在00webhost.com上的PHP脚本将我的SQLiteDB的内容上载到相应的MYSQL数据库时，我在标题中遇到了错误。 我还收到了toast输出：“上传时出错。请稍后重试。”这表明正在调用LongOperation类（如下所示） 我问了一个非常类似的问题，问题是登录详细信息不正确。但是，对于这个脚本，情况并非如此 下面的代码有什么问题 步骤1：在onCreate（）中从SQLite数据库获取值 上面调用的UploadDataAuto方法： public void Uploa

当我尝试使用托管在
00webhost.com上的
PHP
脚本将我的
SQLite
DB的内容上载到相应的
MYSQL
数据库时，我在标题中遇到了错误。

我还收到了toast输出：
“上传时出错。请稍后重试。”
这表明正在调用
LongOperation
类（如下所示）

我问了一个非常类似的问题，问题是登录详细信息不正确。但是，对于这个脚本，情况并非如此

下面的代码有什么问题

步骤1：在onCreate（）中从SQLite数据库获取值

上面调用的UploadDataAuto方法：

public void UploadDataAuto(String sessionId, String game, String name,
            Integer score, Integer avgAttn, Integer avgMed, Integer maxAttn,
            Integer maxMed, String date){

        // Defined URL where to send data
        String ServerUrl = "http://ry.net16.net/gameRegistration.php?sessionId="
                + sessionId
                + "&game="
                + game
                + "&name="
                + name
                + "&avgMed="
                + avgMed
                + "&maxMed="
                + maxMed
                + "&avgAttn="
                + avgAttn
                + "&maxAttn="
                + maxAttn
                + "&score="
                + score
                + "&date="
                + date
                + "";

        LongOperation longOperation = new LongOperation();
        longOperation.sessionId = sessionId;
        longOperation.execute(ServerUrl);

    }

private class LongOperation extends AsyncTask<String, String, Void> {

        // Required initialization
        private final HttpClient Client = new DefaultHttpClient();
        private String Content;
        private String Error = null;
        private ProgressDialog Dialog = new ProgressDialog(LoginHome.this);
        String data = "";
        int sizeData = 0;
        public String sessionId = "";

        protected void onPreExecute() {
            // NOTE: You can call UI Element here.

            // Start Progress Dialog (Message)

            Dialog.setMessage("Please wait.. Data is uploading .");
            Dialog.show();

        }

        // Call after onPreExecute method
        protected Void doInBackground(String... urls) {

            /************ Make Post Call To Web Server ***********/
            BufferedReader reader = null;

            // Send data
            try {

                // Defined URL where to send data
                URL url = new URL(urls[0]);

                // Send POST data request

                URLConnection conn = url.openConnection();
                conn.setDoOutput(true);
                OutputStreamWriter wr = new OutputStreamWriter(
                        conn.getOutputStream());
                wr.write(data);
                wr.flush();

                // Get the server response

                reader = new BufferedReader(new InputStreamReader(
                        conn.getInputStream()));
                StringBuilder sb = new StringBuilder();
                String line = null;

                // Read Server Response
                while ((line = reader.readLine()) != null) {
                    // Append server response in string
                    sb.append(line + "");
                }

                // Append Server Response To Content String
                Content = sb.toString();
            } catch (Exception ex) {
                Error = ex.getMessage();
            } finally {
                try {

                    reader.close();
                }

                catch (Exception ex) {
                }
            }

            /*****************************************************/
            return null;
        }

        protected void onPostExecute(Void unused) {
            // NOTE: You can call UI Element here.

            // Close progress dialog
            Dialog.dismiss();

            if (Error != null) {

                // uiUpdate.setText("Output : "+Error);

            } else {

                // Show Response Json On Screen (activity)
                // uiUpdate.setText( Content );

                /****************** Start Parse Response JSON Data *************/

                String OutputData = "";
                JSONObject jsonResponse;

                try {

                    /******
                     * Creates a new JSONObject with name/value mappings from
                     * the JSON string.
                     ********/
                    jsonResponse = new JSONObject(Content);

                    String result = jsonResponse.get("result").toString();

                    if (result.equals("true")) {

                        //loginDataBaseAdapter.deleteUploadedRecord(sessionId);

                        Toast.makeText(LoginHome.this,
                                "Data is successfully uploaded.",
                                Toast.LENGTH_LONG).show();

                    } else {
                        Toast.makeText(
                                LoginHome.this,
                                "Error while uploading. Please try again later.",
                                Toast.LENGTH_LONG).show();
                    }

                }
                /****************** End Parse Response JSON Data *************/

                catch (JSONException e) {

                    e.printStackTrace();
                }

            }
        }

    }

<?php

if(isset($_GET['sessionId']) && isset($_GET['game']) && isset($_GET['name']) && isset($_GET['avgMed']) && isset($_GET['maxMed']) && isset($_GET['avgAttn']) && isset($_GET['maxAttn']) && isset($_GET['score']) && isset($_GET['date'])  )
{

$mysql_host = "";
$mysql_database = "";
$mysql_user = "";
$mysql_password = "";


    // Provide host ip, mysql user name, password
    $con = mysql_connect($mysql_host,$mysql_user,$mysql_password);

    // Provide database name.
    mysql_select_db($mysql_database);

    $sessionId=$_GET['sessionId'];

    $game=$_GET['game'];

    $name=$_GET['name'];

    $avgMed=$_GET['avgMed'];

    $maxMed=$_GET['maxMed'];

    $avgAttn=$_GET['avgAttn'];

    $maxAttn=$_GET['maxAttn'];

    $score=$_GET['score'];

    $date=$_GET['date'];


    $flag="false";


    if(!empty($game) && !empty($name) && !empty($date) && !empty($sessionId))
    {

        $sql="Insert into `GameDetails` (`SessionId`,`game`,`name`,`AvgMediation`,`MaxMediation`,`AvgAttention` ,`MaxAttention`,`Score`,`Date`) values ('$sessionId','$game','$name','$avgMed','$maxMed','$avgAttn','$maxAttn','$score','$date') ";

        $result=mysql_query($sql);

        if($result)
        {
            $count= mysql_affected_rows();
            if($count > 0)
            {
                $flag="true"; //result true 

            }               

        }

        mysql_close($con);  

        echo json_encode(array("result"=>$flag));
    }
}

?>  

 08-15 22:48:10.907: W/System.err(20233): org.json.JSONException: Value <!-- of type java.lang.String cannot be converted to JSONObject
    08-15 22:48:10.907: W/System.err(20233):    at org.json.JSON.typeMismatch(JSON.java:111)
    08-15 22:48:10.907: W/System.err(20233):    at org.json.JSONObject.<init>(JSONObject.java:159)
    08-15 22:48:10.907: W/System.err(20233):    at org.json.JSONObject.<init>(JSONObject.java:172)
    08-15 22:48:10.907: W/System.err(20233):    at com.example.brianapp.LoginHome$LongOperation.onPostExecute(LoginHome.java:259)
    08-15 22:48:10.907: W/System.err(20233):    at com.example.brianapp.LoginHome$LongOperation.onPostExecute(LoginHome.java:1)
    08-15 22:48:10.907: W/System.err(20233):    at android.os.AsyncTask.finish(AsyncTask.java:632)
    08-15 22:48:10.907: W/System.err(20233):    at android.os.AsyncTask.access$600(AsyncTask.java:177)
    08-15 22:48:10.907: W/System.err(20233):    at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:645)
    08-15 22:48:10.907: W/System.err(20233):    at android.os.Handler.dispatchMessage(Handler.java:102)
    08-15 22:48:10.907: W/System.err(20233):    at android.os.Looper.loop(Looper.java:157)
    08-15 22:48:10.907: W/System.err(20233):    at android.app.ActivityThread.main(ActivityThread.java:5356)
    08-15 22:48:10.907: W/System.err(20233):    at java.lang.reflect.Method.invokeNative(Native Method)
    08-15 22:48:10.907: W/System.err(20233):    at java.lang.reflect.Method.invoke(Method.java:515)
    08-15 22:48:10.907: W/System.err(20233):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1265)
    08-15 22:48:10.907: W/System.err(20233):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1081)
    08-15 22:48:10.907: W/System.err(20233):    at dalvik.system.NativeStart.main(Native Method)
私有类LongOperation（在上面的方法中调用）：

public void UploadDataAuto(String sessionId, String game, String name,
            Integer score, Integer avgAttn, Integer avgMed, Integer maxAttn,
            Integer maxMed, String date){

        // Defined URL where to send data
        String ServerUrl = "http://ry.net16.net/gameRegistration.php?sessionId="
                + sessionId
                + "&game="
                + game
                + "&name="
                + name
                + "&avgMed="
                + avgMed
                + "&maxMed="
                + maxMed
                + "&avgAttn="
                + avgAttn
                + "&maxAttn="
                + maxAttn
                + "&score="
                + score
                + "&date="
                + date
                + "";

        LongOperation longOperation = new LongOperation();
        longOperation.sessionId = sessionId;
        longOperation.execute(ServerUrl);

    }

private class LongOperation extends AsyncTask<String, String, Void> {

        // Required initialization
        private final HttpClient Client = new DefaultHttpClient();
        private String Content;
        private String Error = null;
        private ProgressDialog Dialog = new ProgressDialog(LoginHome.this);
        String data = "";
        int sizeData = 0;
        public String sessionId = "";

        protected void onPreExecute() {
            // NOTE: You can call UI Element here.

            // Start Progress Dialog (Message)

            Dialog.setMessage("Please wait.. Data is uploading .");
            Dialog.show();

        }

        // Call after onPreExecute method
        protected Void doInBackground(String... urls) {

            /************ Make Post Call To Web Server ***********/
            BufferedReader reader = null;

            // Send data
            try {

                // Defined URL where to send data
                URL url = new URL(urls[0]);

                // Send POST data request

                URLConnection conn = url.openConnection();
                conn.setDoOutput(true);
                OutputStreamWriter wr = new OutputStreamWriter(
                        conn.getOutputStream());
                wr.write(data);
                wr.flush();

                // Get the server response

                reader = new BufferedReader(new InputStreamReader(
                        conn.getInputStream()));
                StringBuilder sb = new StringBuilder();
                String line = null;

                // Read Server Response
                while ((line = reader.readLine()) != null) {
                    // Append server response in string
                    sb.append(line + "");
                }

                // Append Server Response To Content String
                Content = sb.toString();
            } catch (Exception ex) {
                Error = ex.getMessage();
            } finally {
                try {

                    reader.close();
                }

                catch (Exception ex) {
                }
            }

            /*****************************************************/
            return null;
        }

        protected void onPostExecute(Void unused) {
            // NOTE: You can call UI Element here.

            // Close progress dialog
            Dialog.dismiss();

            if (Error != null) {

                // uiUpdate.setText("Output : "+Error);

            } else {

                // Show Response Json On Screen (activity)
                // uiUpdate.setText( Content );

                /****************** Start Parse Response JSON Data *************/

                String OutputData = "";
                JSONObject jsonResponse;

                try {

                    /******
                     * Creates a new JSONObject with name/value mappings from
                     * the JSON string.
                     ********/
                    jsonResponse = new JSONObject(Content);

                    String result = jsonResponse.get("result").toString();

                    if (result.equals("true")) {

                        //loginDataBaseAdapter.deleteUploadedRecord(sessionId);

                        Toast.makeText(LoginHome.this,
                                "Data is successfully uploaded.",
                                Toast.LENGTH_LONG).show();

                    } else {
                        Toast.makeText(
                                LoginHome.this,
                                "Error while uploading. Please try again later.",
                                Toast.LENGTH_LONG).show();
                    }

                }
                /****************** End Parse Response JSON Data *************/

                catch (JSONException e) {

                    e.printStackTrace();
                }

            }
        }

    }

<?php

if(isset($_GET['sessionId']) && isset($_GET['game']) && isset($_GET['name']) && isset($_GET['avgMed']) && isset($_GET['maxMed']) && isset($_GET['avgAttn']) && isset($_GET['maxAttn']) && isset($_GET['score']) && isset($_GET['date'])  )
{

$mysql_host = "";
$mysql_database = "";
$mysql_user = "";
$mysql_password = "";


    // Provide host ip, mysql user name, password
    $con = mysql_connect($mysql_host,$mysql_user,$mysql_password);

    // Provide database name.
    mysql_select_db($mysql_database);

    $sessionId=$_GET['sessionId'];

    $game=$_GET['game'];

    $name=$_GET['name'];

    $avgMed=$_GET['avgMed'];

    $maxMed=$_GET['maxMed'];

    $avgAttn=$_GET['avgAttn'];

    $maxAttn=$_GET['maxAttn'];

    $score=$_GET['score'];

    $date=$_GET['date'];


    $flag="false";


    if(!empty($game) && !empty($name) && !empty($date) && !empty($sessionId))
    {

        $sql="Insert into `GameDetails` (`SessionId`,`game`,`name`,`AvgMediation`,`MaxMediation`,`AvgAttention` ,`MaxAttention`,`Score`,`Date`) values ('$sessionId','$game','$name','$avgMed','$maxMed','$avgAttn','$maxAttn','$score','$date') ";

        $result=mysql_query($sql);

        if($result)
        {
            $count= mysql_affected_rows();
            if($count > 0)
            {
                $flag="true"; //result true 

            }               

        }

        mysql_close($con);  

        echo json_encode(array("result"=>$flag));
    }
}

?>  

 08-15 22:48:10.907: W/System.err(20233): org.json.JSONException: Value <!-- of type java.lang.String cannot be converted to JSONObject
    08-15 22:48:10.907: W/System.err(20233):    at org.json.JSON.typeMismatch(JSON.java:111)
    08-15 22:48:10.907: W/System.err(20233):    at org.json.JSONObject.<init>(JSONObject.java:159)
    08-15 22:48:10.907: W/System.err(20233):    at org.json.JSONObject.<init>(JSONObject.java:172)
    08-15 22:48:10.907: W/System.err(20233):    at com.example.brianapp.LoginHome$LongOperation.onPostExecute(LoginHome.java:259)
    08-15 22:48:10.907: W/System.err(20233):    at com.example.brianapp.LoginHome$LongOperation.onPostExecute(LoginHome.java:1)
    08-15 22:48:10.907: W/System.err(20233):    at android.os.AsyncTask.finish(AsyncTask.java:632)
    08-15 22:48:10.907: W/System.err(20233):    at android.os.AsyncTask.access$600(AsyncTask.java:177)
    08-15 22:48:10.907: W/System.err(20233):    at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:645)
    08-15 22:48:10.907: W/System.err(20233):    at android.os.Handler.dispatchMessage(Handler.java:102)
    08-15 22:48:10.907: W/System.err(20233):    at android.os.Looper.loop(Looper.java:157)
    08-15 22:48:10.907: W/System.err(20233):    at android.app.ActivityThread.main(ActivityThread.java:5356)
    08-15 22:48:10.907: W/System.err(20233):    at java.lang.reflect.Method.invokeNative(Native Method)
    08-15 22:48:10.907: W/System.err(20233):    at java.lang.reflect.Method.invoke(Method.java:515)
    08-15 22:48:10.907: W/System.err(20233):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1265)
    08-15 22:48:10.907: W/System.err(20233):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1081)
    08-15 22:48:10.907: W/System.err(20233):    at dalvik.system.NativeStart.main(Native Method)

私有类LongOperation扩展了异步任务{
//所需初始化
私有最终HttpClient客户端=新的DefaultHttpClient（）；
私有字符串内容；
私有字符串错误=null；
private ProgressDialog=新建ProgressDialog（LoginHome.this）；
字符串数据=”；
int sizeData=0；
公共字符串sessionId=“”；
受保护的void onPreExecute（）{
//注意：您可以在这里调用UI元素。
//启动进度对话框（消息）
setMessage（“请稍候..数据正在上载”）；
Dialog.show（）；
}
//在onPreExecute方法之后调用
受保护的Void doInBackground（字符串…URL）{
/************对Web服务器进行Post调用***********/
BufferedReader reader=null；
//发送数据
试一试{
//已定义用于发送数据的URL
URL=新URL（URL[0]）；
//发送POST数据请求
URLConnection conn=url.openConnection（）；
连接设置输出（真）；
OutputStreamWriter wr=新的OutputStreamWriter(
conn.getOutputStream（））；
wr.写入（数据）；
wr.flush（）；
//获取服务器响应
reader=新的BufferedReader（新的InputStreamReader(
conn.getInputStream（））；
StringBuilder sb=新的StringBuilder（）；
字符串行=null；
//读取服务器响应
而（（line=reader.readLine（））！=null）{
//在字符串中追加服务器响应
sb.追加（第+行“）；
}
//将服务器响应附加到内容字符串
Content=sb.toString（）；
}捕获（例外情况除外）{
Error=ex.getMessage（）；
}最后{
试一试{
reader.close（）；
}
捕获（例外情况除外）{
}
}
/*****************************************************/
返回null；
}
受保护的void onPostExecute（未使用的void）{
//注意：您可以在这里调用UI元素。
//关闭进度对话框
Dialog.dismise（）；
if（错误！=null）{
//uiUpdate.setText（“输出：+错误）；
}否则{
//在屏幕上显示响应Json（活动）
//uiUpdate.setText（内容）；
/******************启动解析响应JSON数据*************/
字符串OutputData=“”；
JSONObject jsonResponse；
试一试{
/******
*从中创建具有名称/值映射的新JSONObject
*JSON字符串。
********/
jsonResponse=新的JSONObject（内容）；
String result=jsonResponse.get（“result”）.toString（）；
if（result.equals（“true”））{
//loginDataBaseAdapter.deleteUploadedRecord（sessionId）；
Toast.makeText（LoginHome.this，
“数据已成功上载。”，
Toast.LENGTH_LONG）.show（）；
}否则{
Toast.makeText(
罗金和美，这个，
“上载时出错。请稍后再试。”，
Toast.LENGTH_LONG）.show（）；
}
}
/******************结束解析响应JSON数据*************/
捕获（JSONException e）{
e、 printStackTrace（）；
}
}
}
}
URL中相应的PHP脚本（删除登录详细信息）：

public void UploadDataAuto(String sessionId, String game, String name,
            Integer score, Integer avgAttn, Integer avgMed, Integer maxAttn,
            Integer maxMed, String date){

        // Defined URL where to send data
        String ServerUrl = "http://ry.net16.net/gameRegistration.php?sessionId="
                + sessionId
                + "&game="
                + game
                + "&name="
                + name
                + "&avgMed="
                + avgMed
                + "&maxMed="
                + maxMed
                + "&avgAttn="
                + avgAttn
                + "&maxAttn="
                + maxAttn
                + "&score="
                + score
                + "&date="
                + date
                + "";

        LongOperation longOperation = new LongOperation();
        longOperation.sessionId = sessionId;
        longOperation.execute(ServerUrl);

    }

private class LongOperation extends AsyncTask<String, String, Void> {

        // Required initialization
        private final HttpClient Client = new DefaultHttpClient();
        private String Content;
        private String Error = null;
        private ProgressDialog Dialog = new ProgressDialog(LoginHome.this);
        String data = "";
        int sizeData = 0;
        public String sessionId = "";

        protected void onPreExecute() {
            // NOTE: You can call UI Element here.

            // Start Progress Dialog (Message)

            Dialog.setMessage("Please wait.. Data is uploading .");
            Dialog.show();

        }

        // Call after onPreExecute method
        protected Void doInBackground(String... urls) {

            /************ Make Post Call To Web Server ***********/
            BufferedReader reader = null;

            // Send data
            try {

                // Defined URL where to send data
                URL url = new URL(urls[0]);

                // Send POST data request

                URLConnection conn = url.openConnection();
                conn.setDoOutput(true);
                OutputStreamWriter wr = new OutputStreamWriter(
                        conn.getOutputStream());
                wr.write(data);
                wr.flush();

                // Get the server response

                reader = new BufferedReader(new InputStreamReader(
                        conn.getInputStream()));
                StringBuilder sb = new StringBuilder();
                String line = null;

                // Read Server Response
                while ((line = reader.readLine()) != null) {
                    // Append server response in string
                    sb.append(line + "");
                }

                // Append Server Response To Content String
                Content = sb.toString();
            } catch (Exception ex) {
                Error = ex.getMessage();
            } finally {
                try {

                    reader.close();
                }

                catch (Exception ex) {
                }
            }

            /*****************************************************/
            return null;
        }

        protected void onPostExecute(Void unused) {
            // NOTE: You can call UI Element here.

            // Close progress dialog
            Dialog.dismiss();

            if (Error != null) {

                // uiUpdate.setText("Output : "+Error);

            } else {

                // Show Response Json On Screen (activity)
                // uiUpdate.setText( Content );

                /****************** Start Parse Response JSON Data *************/

                String OutputData = "";
                JSONObject jsonResponse;

                try {

                    /******
                     * Creates a new JSONObject with name/value mappings from
                     * the JSON string.
                     ********/
                    jsonResponse = new JSONObject(Content);

                    String result = jsonResponse.get("result").toString();

                    if (result.equals("true")) {

                        //loginDataBaseAdapter.deleteUploadedRecord(sessionId);

                        Toast.makeText(LoginHome.this,
                                "Data is successfully uploaded.",
                                Toast.LENGTH_LONG).show();

                    } else {
                        Toast.makeText(
                                LoginHome.this,
                                "Error while uploading. Please try again later.",
                                Toast.LENGTH_LONG).show();
                    }

                }
                /****************** End Parse Response JSON Data *************/

                catch (JSONException e) {

                    e.printStackTrace();
                }

            }
        }

    }

<?php

if(isset($_GET['sessionId']) && isset($_GET['game']) && isset($_GET['name']) && isset($_GET['avgMed']) && isset($_GET['maxMed']) && isset($_GET['avgAttn']) && isset($_GET['maxAttn']) && isset($_GET['score']) && isset($_GET['date'])  )
{

$mysql_host = "";
$mysql_database = "";
$mysql_user = "";
$mysql_password = "";


    // Provide host ip, mysql user name, password
    $con = mysql_connect($mysql_host,$mysql_user,$mysql_password);

    // Provide database name.
    mysql_select_db($mysql_database);

    $sessionId=$_GET['sessionId'];

    $game=$_GET['game'];

    $name=$_GET['name'];

    $avgMed=$_GET['avgMed'];

    $maxMed=$_GET['maxMed'];

    $avgAttn=$_GET['avgAttn'];

    $maxAttn=$_GET['maxAttn'];

    $score=$_GET['score'];

    $date=$_GET['date'];


    $flag="false";


    if(!empty($game) && !empty($name) && !empty($date) && !empty($sessionId))
    {

        $sql="Insert into `GameDetails` (`SessionId`,`game`,`name`,`AvgMediation`,`MaxMediation`,`AvgAttention` ,`MaxAttention`,`Score`,`Date`) values ('$sessionId','$game','$name','$avgMed','$maxMed','$avgAttn','$maxAttn','$score','$date') ";

        $result=mysql_query($sql);

        if($result)
        {
            $count= mysql_affected_rows();
            if($count > 0)
            {
                $flag="true"; //result true 

            }               

        }

        mysql_close($con);  

        echo json_encode(array("result"=>$flag));
    }
}

?>  

 08-15 22:48:10.907: W/System.err(20233): org.json.JSONException: Value <!-- of type java.lang.String cannot be converted to JSONObject
    08-15 22:48:10.907: W/System.err(20233):    at org.json.JSON.typeMismatch(JSON.java:111)
    08-15 22:48:10.907: W/System.err(20233):    at org.json.JSONObject.<init>(JSONObject.java:159)
    08-15 22:48:10.907: W/System.err(20233):    at org.json.JSONObject.<init>(JSONObject.java:172)
    08-15 22:48:10.907: W/System.err(20233):    at com.example.brianapp.LoginHome$LongOperation.onPostExecute(LoginHome.java:259)
    08-15 22:48:10.907: W/System.err(20233):    at com.example.brianapp.LoginHome$LongOperation.onPostExecute(LoginHome.java:1)
    08-15 22:48:10.907: W/System.err(20233):    at android.os.AsyncTask.finish(AsyncTask.java:632)
    08-15 22:48:10.907: W/System.err(20233):    at android.os.AsyncTask.access$600(AsyncTask.java:177)
    08-15 22:48:10.907: W/System.err(20233):    at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:645)
    08-15 22:48:10.907: W/System.err(20233):    at android.os.Handler.dispatchMessage(Handler.java:102)
    08-15 22:48:10.907: W/System.err(20233):    at android.os.Looper.loop(Looper.java:157)
    08-15 22:48:10.907: W/System.err(20233):    at android.app.ActivityThread.main(ActivityThread.java:5356)
    08-15 22:48:10.907: W/System.err(20233):    at java.lang.reflect.Method.invokeNative(Native Method)
    08-15 22:48:10.907: W/System.err(20233):    at java.lang.reflect.Method.invoke(Method.java:515)
    08-15 22:48:10.907: W/System.err(20233):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1265)
    08-15 22:48:10.907: W/System.err(20233):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1081)
    08-15 22:48:10.907: W/System.err(20233):    at dalvik.system.NativeStart.main(Native Method)

看起来您想用非JSON字符串创建一个新的
JSONObject
。这似乎发生在
onPostExecute（）

其中
内容
可能没有JSON。
尝试替换


private class LongOperation extends AsyncTask<String, String, Void>


借

最后


protected void onPostExecute(Void unused) 


借


您可以发布您试图解析的JSON字符串吗？确保服务器返回有效的JSON。现在，它可能返回某种错误（404或其他）或网页。