[英]Error message 'java.net.SocketException: socket failed: EACCES (Permission denied)'
I get the error message我收到错误消息
java.net.SocketException: socket failed: EACCES (Permission denied) java.net.SocketException:套接字失败:EACCES(权限被拒绝)
when I try to apply the code below.当我尝试应用下面的代码时。 This is the function I call and gives me this exception.这是我调用的函数,并给了我这个例外。
public void run() {
// TODO Auto-generated method stub
URL myurl = null;
try {
myurl = new URL("http://10.0.2.2/list.JSON");
}
catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
URLConnection myconn = myurl.openConnection();
InputStream in = new BufferedInputStream(myconn.getInputStream());
InputStreamReader reader = new InputStreamReader(in);
BufferedReader br = new BufferedReader(reader);
String line;
StringBuilder sb = new StringBuilder();
while ((line=br.readLine()) != null)
{
sb.append(line);
//Toast.makeText(getApplicationContext(), "I enter here", Toast.LENGTH_LONG).show();
}
jsoncode = sb.toString();
}
catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
threading = true;
super.run();
}
06-30 11:33:21.457: W/System.err(619): java.net.SocketException: socket failed: EACCES (Permission denied)
06-30 11:33:21.467: W/System.err(619): at libcore.io.IoBridge.socket(IoBridge.java:573)
06-30 11:33:21.467: W/System.err(619): at java.net.PlainSocketImpl.create(PlainSocketImpl.java:201)
06-30 11:33:21.479: W/System.err(619): at java.net.Socket.checkOpenAndCreate(Socket.java:663)
06-30 11:33:21.479: W/System.err(619): at java.net.Socket.connect(Socket.java:807)
06-30 11:33:21.479: W/System.err(619): at libcore.net.http.HttpConnection.<init>(HttpConnection.java:77)
06-30 11:33:21.479: W/System.err(619): at libcore.net.http.HttpConnection.<init>(HttpConnection.java:50)
06-30 11:33:21.479: W/System.err(619): at libcore.net.http.HttpConnection$Address.connect(HttpConnection.java:351)
06-30 11:33:21.479: W/System.err(619): at libcore.net.http.HttpConnectionPool.get(HttpConnectionPool.java:86)
06-30 11:33:21.479: W/System.err(619): at libcore.net.http.HttpConnection.connect(HttpConnection.java:128)
06-30 11:33:21.487: W/System.err(619): at libcore.net.http.HttpEngine.openSocketConnection(HttpEngine.java:308)
06-30 11:33:21.487: W/System.err(619): at libcore.net.http.HttpEngine.connect(HttpEngine.java:303)
06-30 11:33:21.497: W/System.err(619): at libcore.net.http.HttpEngine.sendSocketRequest(HttpEngine.java:282)
06-30 11:33:21.497: W/System.err(619): at libcore.net.http.HttpEngine.sendRequest(HttpEngine.java:232)
06-30 11:33:21.497: W/System.err(619): at libcore.net.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:273)
06-30 11:33:21.497: W/System.err(619): at libcore.net.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:168)
06-30 11:33:21.497: W/System.err(619): at com.apk.PItestActivity$connection.run(PItestActivity.java:190)
06-30 11:33:21.507: W/System.err(619): Caused by: libcore.io.ErrnoException: socket failed: EACCES (Permission denied)
06-30 11:33:21.517: W/System.err(619): at libcore.io.Posix.socket(Native Method)
06-30 11:33:21.517: W/System.err(619): at libcore.io.BlockGuardOs.socket(BlockGuardOs.java:169)
06-30 11:33:21.527: W/System.err(619): at libcore.io.IoBridge.socket(IoBridge.java:558)
06-30 11:33:21.527: W/System.err(619): ... 15 more
And this is my manifest file:这是我的清单文件:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.apk"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="14" />
<permission android:name="android.permission.INTERNET"></permission>
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity
android:name=".PItestActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="addfriend"></activity>
<activity android:name="updateDetails"></activity>
<activity android:name="Details"></activity>
<activity android:name="updateimage"></activity>
</application>
</manifest>
How can I fix this problem?我该如何解决这个问题?
Try with,试试看,
<uses-permission android:name="android.permission.INTERNET"/>
instead of,代替,
<permission android:name="android.permission.INTERNET"></permission>
Try this:试试这个:
<uses-permission android:name="android.permission.INTERNET"/>
And your activity names
must be like this with capital letters
:您的activity names
必须是capital letters
:
<activity android:name=".Addfriend"/>
<activity android:name=".UpdateDetails"/>
<activity android:name=".Details"/>
<activity android:name=".Updateimage"/>
try it.尝试一下。
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
尝试将<uses-permission>
移到<uses-permission>
<application>
标签之外。
Uninstalling the app on device and then reinstalling fixed it for me.卸载设备上的应用程序,然后重新安装为我修复了它。
Tried all the other options, nothing.尝试了所有其他选项,什么都没有。 Finally found this post .终于找到这个帖子了。 This is after adding permission (below) and cleaning build.这是在添加权限(如下)和清理构建之后。
<uses-permission android:name="android.permission.INTERNET"/>
It can be fixed by placing the lines in the android manifest file:可以通过在 android 清单文件中放置以下行来修复它:
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
将这些源代码添加到您的 Java 文件中,如下所示:
StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder().detectDiskReads().detectDiskWrites().detectNetwork().penaltyLog().build());
You may need to do AndroidStudio - Build - Clean你可能需要做 AndroidStudio - Build - Clean
If you updated manifest through the filesystem or Git it won't pick up the changes.如果您通过文件系统或 Git 更新清单,它不会获取更改。
如果您使用模拟器进行测试,那么您必须仅使用<uses-permission android:name="android.permission.INTERNET" />
并忽略<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
。这对我有用。
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