Question

我收到错误

java.net.SocketException：套接字失败：EACCES（权限被拒绝）

这是我将数据发布到服务器的方法

public void postData(String stuff){
    //Create a new HTTPClient and Post Header
    URL url;
    HttpURLConnection con = null;
    status.setText("In post");
    try{
        url = new URL("http://myaddress/gpsin");
        con = (HttpURLConnection)url.openConnection();
        con.setDoOutput(true);
        con.setRequestMethod("POST");
        con.setRequestProperty("Content-Type","application/x-www-form-urlencoded; charset=UTF-8");
        con.connect();

        //Send Request
        DataOutputStream wr = new DataOutputStream(con.getOutputStream());
        wr.writeBytes((stuff));
        wr.flush();
        wr.close();

        InputStream is;
        int response = con.getResponseCode();
        if(response >= 200 && response<= 399){
            //return success
            status.setText("Success!");
        }else{
            //return fail
            status.setText("Fail");
        }
    } catch (Exception e){
        e.printStackTrace();
        status.setText("In catch");
    }finally{
        if(con!=null)con.disconnect();
    }
}

清单：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.jake.locationapp">
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">
    <activity android:name=".MainActivity">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

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

LogCat：

09-09 12:43:33.308 11819-11819/com.jake.locationapp W/System.err: java.net.SocketException: socket failed: EACCES (Permission denied)
09-09 12:43:33.308 11819-11819/com.jake.locationapp W/System.err:     at libcore.io.IoBridge.socket(IoBridge.java:623)
09-09 12:43:33.308 11819-11819/com.jake.locationapp W/System.err:     at java.net.PlainSocketImpl.create(PlainSocketImpl.java:198)
09-09 12:43:33.308 11819-11819/com.jake.locationapp W/System.err:     at java.net.Socket.checkOpenAndCreate(Socket.java:689)
09-09 12:43:33.308 11819-11819/com.jake.locationapp W/System.err:     at java.net.Socket.setSoTimeout(Socket.java:543)
09-09 12:43:33.308 11819-11819/com.jake.locationapp W/System.err:     at com.android.okhttp.Connection.connect(Connection.java:158)
09-09 12:43:33.308 11819-11819/com.jake.locationapp W/System.err:     at com.android.okhttp.Connection.connect(Connection.java:174)
09-09 12:43:33.308 11819-11819/com.jake.locationapp W/System.err:     at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:316)
09-09 12:43:33.308 11819-11819/com.jake.locationapp W/System.err:     at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:249)
09-09 12:43:33.308 11819-11819/com.jake.locationapp W/System.err:     at com.android.okhttp.internal.http.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:397)
09-09 12:43:33.308 11819-11819/com.jake.locationapp W/System.err:     at com.android.okhttp.internal.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:118)
09-09 12:43:33.308 11819-11819/com.jake.locationapp W/System.err:     at com.jake.locationapp.MainActivity.postData(MainActivity.java:84)
09-09 12:43:33.308 11819-11819/com.jake.locationapp W/System.err:     at com.jake.locationapp.MainActivity$MyLocationListener.onLocationChanged(MainActivity.java:197)
09-09 12:43:33.308 11819-11819/com.jake.locationapp W/System.err:     at android.location.LocationManager$ListenerTransport._handleMessage(LocationManager.java:285)
09-09 12:43:33.308 11819-11819/com.jake.locationapp W/System.err:     at android.location.LocationManager$ListenerTransport.access$000(LocationManager.java:214)
09-09 12:43:33.308 11819-11819/com.jake.locationapp W/System.err:     at android.location.LocationManager$ListenerTransport$1.handleMessage(LocationManager.java:230)
09-09 12:43:33.308 11819-11819/com.jake.locationapp W/System.err:     at android.os.Handler.dispatchMessage(Handler.java:102)
09-09 12:43:33.308 11819-11819/com.jake.locationapp W/System.err:     at android.os.Looper.loop(Looper.java:135)
09-09 12:43:33.308 11819-11819/com.jake.locationapp W/System.err:     at android.app.ActivityThread.main(ActivityThread.java:5430)
09-09 12:43:33.308 11819-11819/com.jake.locationapp W/System.err:     at java.lang.reflect.Method.invoke(Native Method)
09-09 12:43:33.308 11819-11819/com.jake.locationapp W/System.err:     at java.lang.reflect.Method.invoke(Method.java:372)
09-09 12:43:33.308 11819-11819/com.jake.locationapp W/System.err:     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:913)
09-09 12:43:33.308 11819-11819/com.jake.locationapp W/System.err:     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:706)
09-09 12:43:33.308 11819-11819/com.jake.locationapp W/System.err: Caused by: android.system.ErrnoException: socket failed: EACCES (Permission denied)
09-09 12:43:33.308 11819-11819/com.jake.locationapp W/System.err:     at libcore.io.Posix.socket(Native Method)
09-09 12:43:33.308 11819-11819/com.jake.locationapp W/System.err:     at libcore.io.BlockGuardOs.socket(BlockGuardOs.java:282)
09-09 12:43:33.308 11819-11819/com.jake.locationapp W/System.err:     at libcore.io.IoBridge.socket(IoBridge.java:608)
09-09 12:43:33.308 11819-11819/com.jake.locationapp W/System.err:   ... 21 more

我已经做了相当多的谷歌搜索，但我能找到的只是人们错放了清单中的权限行

Answer 1

尝试继续而不调用.connect（）。文档在这方面有点令人困惑，因为它告诉您返回的URLConnection在创建时没有连接，但是HttpURLConnection示例从不显示对.connect（）的实际调用。可能是您已经连接，并且您对.connect（）的后续调用尝试在已经完成连接时建立连接，从而在后台导致奇怪的权限问题。 - Larry Schiefer

这很有效！

向服务器发送信息，java.net.SocketException：套接字失败：EACCES（权限被拒绝）

1 个答案: