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package nopi.aystudio.mthread;
import android.support.v7.app.AppCompatActivity;
import android.os.bundle;
import android.util.Log;
import android.view.View;
import android.widget.button;
import android.widget.TextView;
import android.widget.Toast;
import java.io.bufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.httpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
public class MainActivity extends AppCompatActivity implements View.onClickListener{
Button button;
TextView textView;
@Override
protected void onCreate(Bundle savedInstanceStatE) {
super.onCreate(savedInstanceStatE);
setContentView(R.layout.activity_main);
button = findViewById(R.id.btn_get);
textView = findViewById(R.id.text);
button.setOnClickListener(this);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btn_get:
getData();
break;
default:
break;
}
}
private void getData(){
new Thread(new Runnable() {
@Override
public void run() {
BufferedReader bufferedReader = null;
httpURLConnection httpURLConnection = null;
try {
URL url = new URL("https://www.24kdh.com/");
httpURLConnection = (httpURLConnection) url.openConnection();
httpURLConnection.setrequestMethod("GET");
httpURLConnection.setConnectTimeout(8000);
httpURLConnection.setReadTimeout(8000);
InputStream inputStream = httpURLConnection.geTinputStream();
bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
StringBuilder responseData = new StringBuilder();
String line;
while ((line = bufferedReader.readLine()) != null) {
responseData.append(linE);
}
show(responseData.toString());
} catch (MalformedURLException E) {
e.printStackTrace();
} catch (IOException E) {
e.printStackTrace();
}finally {
try {
if (bufferedReader != null) {
bufferedReader.close();
}
if (httpURLConnection != null){
httpURLConnection.disconnect();
}
} catch (IOException E) {
e.printStackTrace();
}
}
}
}).start();
}
private void show(final String responsE){
runOnUiThread(new Runnable(){
@Override
public void run() {
textView.setText(responsE);
}
});
}
}
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://scheR_87_11845@as.android.com/apk/res/android"
xmlns:app="http://scheR_87_11845@as.android.com/apk/res-auto"
xmlns:tools="http://scheR_87_11845@as.android.com/tools"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<Button
android:id="@+id/btn_get"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="获取数据"/>
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/text"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</ScrollView>
</LinearLayout>
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