java.net.SocketException: Permission denied报错
在AndroidManifest.xml文件中添加<uses-permission android:name="android.permission.INTERNET" />还是会报错java.net.SocketException: Permission denied
本人菜鸟一枚,刚刚接触android
还请各位大牛帮忙解决一下,感谢!!!
一下是源码:
MainActivity.java
package com.example.httptest;
import android.os.StrictMode;
import android.util.Log;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.content.Intent;
import android.content.res.AssetManager;
import android.os.AsyncTask;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;
import android.widget.Button;
import java.io.*;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.logging.Handler;
import java.util.logging.LogRecord;
import org.json.*;
public class MainActivity extends AppCompatActivity {
private TextView textview = null;
public static String text = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
textview = (TextView) findViewById(R.id.textview);
StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder().detectDiskReads().detectDiskWrites().detectNetwork().penaltyLog().build());
}
public void btnOnClick(View view){
new MyThread().start();
textview.setText("text");
}
}
class MyThread extends Thread{
public void run(){
try{
URL url = new URL("http://192.168.1.104:80/www/text.php");
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("POST");
conn.setDoOutput(true);
conn.setDoInput(true);
InputStream is = conn.getInputStream();
MainActivity.text = readInputStream(is);
}catch (MalformedURLException e){
e.printStackTrace();
}catch (IOException e){
e.printStackTrace();
}
}
public String readInputStream(InputStream is){
try{
ByteArrayOutputStream baos = new ByteArrayOutputStream();
int length = 0;
byte[] buffer = new byte[1024];
while ((length = is.read(buffer))!=-1){
baos.write(buffer,0,length);
}
is.close();
baos.close();
return baos.toString();
}catch (IOException e){
e.printStackTrace();
return "failed";
}
}
}
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.httptest">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
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>
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
</application>
</manifest>
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.example.httptest.MainActivity"
tools:layout_editor_absoluteY="81dp"
tools:layout_editor_absoluteX="0dp">
<TextView
android:id="@+id/textview"
android:layout_width="200dp"
android:layout_height="200dp"
android:textSize="100sp"
android:background="@android:color/holo_orange_light"
tools:layout_editor_absoluteY="99dp"
tools:layout_editor_absoluteX="-1dp" />
<Button
android:id="@+id/button"
android:layout_width="30dp"
android:layout_height="30dp"
android:text="访问"
android:textSize="30sp"
tools:layout_editor_absoluteY="393dp"
tools:layout_editor_absoluteX="16dp"
android:onClick="btnOnClick"/>
</android.support.constraint.ConstraintLayout>