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Volley和Android互联网权限无效

分类：Android作者：编程之家
我正试图用截击.

这是我的android清单:(我已添加access_network_state因为建议但我认为不是真的需要)

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.informaticalab.volleyexample" >

    <uses-permission android:name="android.permission.INTERNET"/>

    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>


    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >

        <activity
            android:name=".MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

这是logcat：

12-20 18:02:02.804  32718-32741/com.informaticalab.volleyexample E/Volley﹕ [10218] Networkdispatcher.run: Unhandled exception java.lang.SecurityException: Permission denied (missing INTERNET permission?)
    java.lang.SecurityException: Permission denied (missing INTERNET permission?)
            at java.net.InetAddress.lookupHostByName(InetAddress.java:451)
            at java.net.InetAddress.getAllByNameImpl(InetAddress.java:252)
            at java.net.InetAddress.getAllByName(InetAddress.java:215)
            at com.android.okhttp.HostResolver$1.getAllByName(HostResolver.java:29)
            at com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:232)
            at com.android.okhttp.internal.http.RouteSelector.next(RouteSelector.java:124)
            at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:272)
            at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:211)
            at com.android.okhttp.internal.http.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:373)
            at com.android.okhttp.internal.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:323)
            at com.android.okhttp.internal.http.HttpURLConnectionImpl.getResponseCode(HttpURLConnectionImpl.java:491)
            at com.android.volley.toolBox.HurlStack.performRequest(HurlStack.java:109)
            at com.android.volley.toolBox.BasicNetwork.performRequest(BasicNetwork.java:96)
            at com.android.volley.Networkdispatcher.run(Networkdispatcher.java:112)
     Caused by: android.system.GaiException: android_getaddrinfo Failed: EAI_NODATA (No address associated with hostname)
            at libcore.io.Posix.android_getaddrinfo(Native Method)
            at libcore.io.ForwardingOs.android_getaddrinfo(ForwardingOs.java:55)
            at java.net.InetAddress.lookupHostByName(InetAddress.java:438)
            at java.net.InetAddress.getAllByNameImpl(InetAddress.java:252)
            at java.net.InetAddress.getAllByName(InetAddress.java:215)
            at com.android.okhttp.HostResolver$1.getAllByName(HostResolver.java:29)
            at com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:232)
            at com.android.okhttp.internal.http.RouteSelector.next(RouteSelector.java:124)
            at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:272)
            at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:211)
            at com.android.okhttp.internal.http.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:373)
            at com.android.okhttp.internal.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:323)
            at com.android.okhttp.internal.http.HttpURLConnectionImpl.getResponseCode(HttpURLConnectionImpl.java:491)
            at com.android.volley.toolBox.HurlStack.performRequest(HurlStack.java:109)
            at com.android.volley.toolBox.BasicNetwork.performRequest(BasicNetwork.java:96)
            at com.android.volley.Networkdispatcher.run(Networkdispatcher.java:112)
     Caused by: android.system.ErrnoException: android_getaddrinfo Failed: EACCES (Permission denied)
            at libcore.io.Posix.android_getaddrinfo(Native Method)
            at libcore.io.ForwardingOs.android_getaddrinfo(ForwardingOs.java:55)
            at java.net.InetAddress.lookupHostByName(InetAddress.java:438)
            at java.net.InetAddress.getAllByNameImpl(InetAddress.java:252)
            at java.net.InetAddress.getAllByName(InetAddress.java:215)
            at com.android.okhttp.HostResolver$1.getAllByName(HostResolver.java:29)
            at com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:232)
            at com.android.okhttp.internal.http.RouteSelector.next(RouteSelector.java:124)
            at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:272)
            at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:211)
            at com.android.okhttp.internal.http.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:373)
            at com.android.okhttp.internal.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:323)
            at com.android.okhttp.internal.http.HttpURLConnectionImpl.getResponseCode(HttpURLConnectionImpl.java:491)
            at com.android.volley.toolBox.HurlStack.performRequest(HurlStack.java:109)
            at com.android.volley.toolBox.BasicNetwork.performRequest(BasicNetwork.java:96)
            at com.android.volley.Networkdispatcher.run(Networkdispatcher.java:112)
12-20 18:02:56.885      720-743/com.informaticalab.volleyexample E/Volley﹕ [10263] Networkdispatcher.run: Unhandled exception java.lang.SecurityException: Permission denied (missing INTERNET permission?)
    java.lang.SecurityException: Permission denied (missing INTERNET permission?)
            at java.net.InetAddress.lookupHostByName(InetAddress.java:451)
            at java.net.InetAddress.getAllByNameImpl(InetAddress.java:252)
            at java.net.InetAddress.getAllByName(InetAddress.java:215)
            at com.android.okhttp.HostResolver$1.getAllByName(HostResolver.java:29)
            at com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:232)
            at com.android.okhttp.internal.http.RouteSelector.next(RouteSelector.java:124)
            at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:272)
            at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:211)
            at com.android.okhttp.internal.http.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:373)
            at com.android.okhttp.internal.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:323)
            at com.android.okhttp.internal.http.HttpURLConnectionImpl.getResponseCode(HttpURLConnectionImpl.java:491)
            at com.android.volley.toolBox.HurlStack.performRequest(HurlStack.java:109)
            at com.android.volley.toolBox.BasicNetwork.performRequest(BasicNetwork.java:96)
            at com.android.volley.Networkdispatcher.run(Networkdispatcher.java:112)
     Caused by: android.system.GaiException: android_getaddrinfo Failed: EAI_NODATA (No address associated with hostname)
            at libcore.io.Posix.android_getaddrinfo(Native Method)
            at libcore.io.ForwardingOs.android_getaddrinfo(ForwardingOs.java:55)
            at java.net.InetAddress.lookupHostByName(InetAddress.java:438)
            at java.net.InetAddress.getAllByNameImpl(InetAddress.java:252)
            at java.net.InetAddress.getAllByName(InetAddress.java:215)
            at com.android.okhttp.HostResolver$1.getAllByName(HostResolver.java:29)
            at com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:232)
            at com.android.okhttp.internal.http.RouteSelector.next(RouteSelector.java:124)
            at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:272)
            at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:211)
            at com.android.okhttp.internal.http.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:373)
            at com.android.okhttp.internal.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:323)
            at com.android.okhttp.internal.http.HttpURLConnectionImpl.getResponseCode(HttpURLConnectionImpl.java:491)
            at com.android.volley.toolBox.HurlStack.performRequest(HurlStack.java:109)
            at com.android.volley.toolBox.BasicNetwork.performRequest(BasicNetwork.java:96)
            at com.android.volley.Networkdispatcher.run(Networkdispatcher.java:112)
     Caused by: android.system.ErrnoException: android_getaddrinfo Failed: EACCES (Permission denied)
            at libcore.io.Posix.android_getaddrinfo(Native Method)
            at libcore.io.ForwardingOs.android_getaddrinfo(ForwardingOs.java:55)
            at java.net.InetAddress.lookupHostByName(InetAddress.java:438)
            at java.net.InetAddress.getAllByNameImpl(InetAddress.java:252)
            at java.net.InetAddress.getAllByName(InetAddress.java:215)
            at com.android.okhttp.HostResolver$1.getAllByName(HostResolver.java:29)
            at com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:232)
            at com.android.okhttp.internal.http.RouteSelector.next(RouteSelector.java:124)
            at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:272)
            at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:211)
            at com.android.okhttp.internal.http.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:373)
            at com.android.okhttp.internal.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:323)
            at com.android.okhttp.internal.http.HttpURLConnectionImpl.getResponseCode(HttpURLConnectionImpl.java:491)
            at com.android.volley.toolBox.HurlStack.performRequest(HurlStack.java:109)
            at com.android.volley.toolBox.BasicNetwork.performRequest(BasicNetwork.java:96)
            at com.android.volley.Networkdispatcher.run(Networkdispatcher.java:112)
12-20 18:04:31.940    1819-1841/com.informaticalab.volleyexample E/Volley﹕ [10403] Networkdispatcher.run: Unhandled exception java.lang.SecurityException: Permission denied (missing INTERNET permission?)
    java.lang.SecurityException: Permission denied (missing INTERNET permission?)
            at java.net.InetAddress.lookupHostByName(InetAddress.java:451)
            at java.net.InetAddress.getAllByNameImpl(InetAddress.java:252)
            at java.net.InetAddress.getAllByName(InetAddress.java:215)
            at com.android.okhttp.HostResolver$1.getAllByName(HostResolver.java:29)
            at com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:232)
            at com.android.okhttp.internal.http.RouteSelector.next(RouteSelector.java:124)
            at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:272)
            at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:211)
            at com.android.okhttp.internal.http.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:373)
            at com.android.okhttp.internal.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:323)
            at com.android.okhttp.internal.http.HttpURLConnectionImpl.getResponseCode(HttpURLConnectionImpl.java:491)
            at com.android.volley.toolBox.HurlStack.performRequest(HurlStack.java:109)
            at com.android.volley.toolBox.BasicNetwork.performRequest(BasicNetwork.java:96)
            at com.android.volley.Networkdispatcher.run(Networkdispatcher.java:112)
     Caused by: android.system.GaiException: android_getaddrinfo Failed: EAI_NODATA (No address associated with hostname)
            at libcore.io.Posix.android_getaddrinfo(Native Method)
            at libcore.io.ForwardingOs.android_getaddrinfo(ForwardingOs.java:55)
            at java.net.InetAddress.lookupHostByName(InetAddress.java:438)
            at java.net.InetAddress.getAllByNameImpl(InetAddress.java:252)
            at java.net.InetAddress.getAllByName(InetAddress.java:215)
            at com.android.okhttp.HostResolver$1.getAllByName(HostResolver.java:29)
            at com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:232)
            at com.android.okhttp.internal.http.RouteSelector.next(RouteSelector.java:124)
            at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:272)
            at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:211)
            at com.android.okhttp.internal.http.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:373)
            at com.android.okhttp.internal.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:323)
            at com.android.okhttp.internal.http.HttpURLConnectionImpl.getResponseCode(HttpURLConnectionImpl.java:491)
            at com.android.volley.toolBox.HurlStack.performRequest(HurlStack.java:109)
            at com.android.volley.toolBox.BasicNetwork.performRequest(BasicNetwork.java:96)
            at com.android.volley.Networkdispatcher.run(Networkdispatcher.java:112)
     Caused by: android.system.ErrnoException: android_getaddrinfo Failed: EACCES (Permission denied)
            at libcore.io.Posix.android_getaddrinfo(Native Method)
            at libcore.io.ForwardingOs.android_getaddrinfo(ForwardingOs.java:55)
            at java.net.InetAddress.lookupHostByName(InetAddress.java:438)
            at java.net.InetAddress.getAllByNameImpl(InetAddress.java:252)
            at java.net.InetAddress.getAllByName(InetAddress.java:215)
            at com.android.okhttp.HostResolver$1.getAllByName(HostResolver.java:29)
            at com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:232)
            at com.android.okhttp.internal.http.RouteSelector.next(RouteSelector.java:124)
            at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:272)
            at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:211)
            at com.android.okhttp.internal.http.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:373)
            at com.android.okhttp.internal.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:323)
            at com.android.okhttp.internal.http.HttpURLConnectionImpl.getResponseCode(HttpURLConnectionImpl.java:491)
            at com.android.volley.toolBox.HurlStack.performRequest(HurlStack.java:109)
            at com.android.volley.toolBox.BasicNetwork.performRequest(BasicNetwork.java:96)
            at com.android.volley.Networkdispatcher.run(Networkdispatcher.java:112)

我不确定我做错了什么.即使logcat说存在权限问题,我也想附加我的主要活动：

package com.informaticalab.volleyexample;

import android.content.Context;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.support.v7.app.ActionBaractivity;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.TextView;

import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolBox.ImageLoader;
import com.android.volley.toolBox.JsonObjectRequest;
import com.android.volley.toolBox.Volley;

import org.json.JSONObject;


public class MainActivity extends ActionBaractivity
{

    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        final TextView mTxtdisplay = (TextView) findViewById(R.id.txtview);
        String url = "";

        JsonObjectRequest jsObjRequest = new JsonObjectRequest
                (Request.Method.GET,url,null,new Response.Listener<JSONObject>()
                {

                    @Override
                    public void onResponse(JSONObject response)
                    {
                        mTxtdisplay.setText("Response: " + response.toString());
                    }
                },new Response.ErrorListener()
                {

                    @Override
                    public void onErrorResponse(VolleyError error)
                    {
                        mTxtdisplay.setText("Response: Oooops!");
                    }
                });

// Access the RequestQueue through your singleton class.
        MySingleton.getInstance(this).addToRequestQueue(jsObjRequest);
    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu)
    {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main,menu);
        return true;
    }

    @Override
    public boolean onoptionsItemSelected(MenuItem item)
    {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button,so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings)
        {
            return true;
        }

        return super.onoptionsItemSelected(item);
    }

    private static class MySingleton
    {
        private static MySingleton mInstance;
        private RequestQueue mRequestQueue;
        private ImageLoader mImageLoader;
        private static Context mCtx;

        private MySingleton(Context context)
        {
            mCtx = context;
            mRequestQueue = getRequestQueue();

            mImageLoader = new ImageLoader(mRequestQueue,new ImageLoader.ImageCache()
                                           {
                                               private final android.support.v4.util
                                                       .LruCache<String,Bitmap>
                                                       cache = new android.support.v4.util
                                                       .LruCache<String,Bitmap>(
                                                       20);

                                               @Override
                                               public Bitmap getBitmap(String url)
                                               {
                                                   return cache.get(url);
                                               }

                                               @Override
                                               public void putBitmap(String url,Bitmap bitmap)
                                               {
                                                   cache.put(url,bitmap);
                                               }
                                           });
        }

        public static synchronized MySingleton getInstance(Context context)
        {
            if (mInstance == null)
            {
                mInstance = new MySingleton(context);
            }
            return mInstance;
        }

        public RequestQueue getRequestQueue()
        {
            if (mRequestQueue == null)
            {
                // getApplicationContext() is key,it keeps you from leaking the
                // Activity or broadcastReceiver if someone passes one in.
                mRequestQueue = Volley.newRequestQueue(mCtx.getApplicationContext());
            }
            return mRequestQueue;
        }

        public <T> void addToRequestQueue(Request<T> req)
        {
            getRequestQueue().add(req);
        }

        public ImageLoader getimageLoader()
        {
            return mImageLoader;
        }
    }

}

解决方法

编辑：删除不必要的声明.

你是对的,：

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

没有必要.您只需要INTERNET权限.

但所有这一切,与你缺少权限的问题没有任何关系.我这样做就像你一样,它就像一个魅力.只需测试我上面的想法并报告回来.

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