11-07 20:12:21.139 17619-17619/com.example.arnold.itsosgadda E/log_data: Comunicazione n.129 <a href="http://www.itsosgadda.it/comunicazioni/pubbliche/2015-16%20Comunicazione%20129%20Uscita%20didattica%203B%20museo%20del%20computer%20Fornovo.pdf">Download<br>
11-07 20:12:21.139 17619-17619/com.example.arnold.itsosgadda W/System.err: org.json.JSONException: Value Comunicazione of type java.lang.String cannot be converted to JSONArray
11-07 20:12:21.149 17619-17619/com.example.arnold.itsosgadda W/System.err: at org.json.JSON.typeMismatch(JSON.java:111)
11-07 20:12:21.149 17619-17619/com.example.arnold.itsosgadda W/System.err: at org.json.JSONArray.<init>(JSONArray.java:96)
11-07 20:12:21.149 17619-17619/com.example.arnold.itsosgadda W/System.err: at org.json.JSONArray.<init>(JSONArray.java:108)
11-07 20:12:21.149 17619-17619/com.example.arnold.itsosgadda W/System.err: at com.example.arnold.itsosgadda.CommunicationsActivity.connect(CommunicationsActivity.java:59)
11-07 20:12:21.149 17619-17619/com.example.arnold.itsosgadda W/System.err: at com.example.arnold.itsosgadda.CommunicationsActivity.onCreate(CommunicationsActivity.java:36)
11-07 20:12:21.149 17619-17619/com.example.arnold.itsosgadda W/System.err: at android.app.Activity.performCreate(Activity.java:5231)
11-07 20:12:21.149 17619-17619/com.example.arnold.itsosgadda W/System.err: at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
11-07 20:12:21.149 17619-17619/com.example.arnold.itsosgadda W/System.err: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2199)
11-07 20:12:21.149 17619-17619/com.example.arnold.itsosgadda W/System.err: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2285)
11-07 20:12:21.149 17619-17619/com.example.arnold.itsosgadda W/System.err: at android.app.ActivityThread.access$800(ActivityThread.java:138)
11-07 20:12:21.149 17619-17619/com.example.arnold.itsosgadda W/System.err: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1236)
11-07 20:12:21.149 17619-17619/com.example.arnold.itsosgadda W/System.err: at android.os.Handler.dispatchMessage(Handler.java:102)
11-07 20:12:21.149 17619-17619/com.example.arnold.itsosgadda W/System.err: at android.os.Looper.loop(Looper.java:149)
11-07 20:12:21.149 17619-17619/com.example.arnold.itsosgadda W/System.err: at android.app.ActivityThread.main(ActivityThread.java:5061)
11-07 20:12:21.149 17619-17619/com.example.arnold.itsosgadda W/System.err: at java.lang.reflect.Method.invokeNative(Native Method)
11-07 20:12:21.149 17619-17619/com.example.arnold.itsosgadda W/System.err: at java.lang.reflect.Method.invoke(Method.java:515)
11-07 20:12:21.159 17619-17619/com.example.arnold.itsosgadda W/System.err: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:787)
11-07 20:12:21.159 17619-17619/com.example.arnold.itsosgadda W/System.err: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:603)
11-07 20:12:21.159 17619-17619/com.example.arnold.itsosgadda W/System.err: at dalvik.system.NativeStart.main(Native Method)
<?php
/**
* Created by PhpStorm.
* User: Arnol'd
* Date: 07.11.2015
* Time: 15:27
*/
$username = 'app';
$password = '4826159g';
$hostname = 'xxx.xxx.xxx.xxx:xxxx';
$database = 'app_db';
$conn = new mysqli($hostname, $username, $password, $database);
if ($conn->connect_error) {
die("Connection failed:" . $conn->connect_error);
}
$sql = "select * from push";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
while ($row = $result->fetch_assoc()) {
echo $row["push_name"] . ' <a href="'.$row['link'].'">' . 'Download' . "<br>";
}
}
else{
echo "0 results";
}
$conn->close();
?>
package com.example.arnold.itsosgadda;
import android.app.ActionBar;
import android.app.Activity;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.os.Bundle;
import android.os.StrictMode;
import android.util.Log;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import org.json.JSONArray;
import org.json.JSONObject;
import java.util.ArrayList;
import java.util.List;
@SuppressWarnings("deprecation")
public class CommunicationsActivity extends Activity {
private String jsonResult;
private String url = "http://xxx.xxx.xxx.xxx:xxxx/config.php";
private ListView listView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.communications_news_layout);
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
connect();
ActionBar actionBar = getActionBar();
assert actionBar != null;
actionBar.setIcon(R.mipmap.ic_launcher);
actionBar.setBackgroundDrawable(new ColorDrawable(Color.parseColor("#ffeb3b")));
}
private void connect() {
String data;
List<String> listData = new ArrayList<>();
ArrayAdapter<String> adapter = new ArrayAdapter<>(getApplicationContext(),
android.R.layout.simple_list_item_1, listData);
listView = (ListView) findViewById(R.id.listView);
try {
DefaultHttpClient client = new DefaultHttpClient();
HttpPost request = new HttpPost(url);
request.setHeader("Accept","application/json");
HttpResponse response = client.execute(request);
HttpEntity entity = response.getEntity();
data = EntityUtils.toString(entity);
Log.e("log_data", data);
try {
JSONArray jsonArray = new JSONArray(data);
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject obj = jsonArray.getJSONObject(i);
String name = obj.optString("push_name");
String link = obj.getString("link");
Log.e("log_data", name);
listData.add(name);
listData.add(link);
listView.setAdapter(adapter);
}
} catch (Exception e) {
e.printStackTrace();
}
} catch (Exception e) {
e.printStackTrace();
}
}
/*final CommunicationsActivity activity = this;
final String url = "http://www.itsosgadda.it/index.php/comunicazioni-pubbliche";
@SuppressLint("SetJavaScriptEnabled")
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.getWindow().requestFeature(Window.FEATURE_PROGRESS);
ActionBar actionBar = getActionBar();
assert actionBar != null;
actionBar.setIcon(R.mipmap.ic_launcher);
actionBar.setBackgroundDrawable(new ColorDrawable(Color.parseColor("#ffeb3b")));
//Shows me status bar progress
setContentView(R.layout.communications_news_layout);
WebView webView = (WebView) findViewById(R.id.webView);
//Enables JS
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setSupportZoom(true);
webView.getSettings().setBuiltInZoomControls(true);
//noinspection deprecation
webView.getSettings().setDefaultZoom(FAR);
webView.setWebChromeClient(new WebChromeClient() {
public void onProgressChanged(WebView view, int progress) {
activity.setTitle(R.string.loading_progress);
activity.setProgress(progress * 100);
if (progress == 100) {
activity.setTitle(R.string.app_name);
}
}
});
webView.setWebViewClient(new WebViewClient() {
@Override
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
// Handle the error
Log.i("WEB_VIEW_COMMUNICATIONS", "Error code: " + errorCode);
super.onReceivedError(view, errorCode, description, failingUrl);
}
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
});
webView.loadUrl(url);
}*/
}
答案 0 :(得分：0)
首先，您不应发布您的IP。在谈论您的问题时，您收到的HTML页面无法转换为JSON。它可能是错误或其他任何东西，尝试在尝试将其转换为JSON之前打印收到的响应，并且可能您会知道发生了什么
答案 1 :(得分：0)
你的json文件中有一个由php生成的错误。特别是android认为你提供的pdf链接不是JSONArray，也许它是一个json对象？建议你测试你的json http://jsonlint.com/并在这里发布你的整个json respone。