我正在尝试用Jsoup
lib 解析 html。然而,我没有得到我想要的。我想将标签的整个文本带到移动设备的屏幕上<pre>
请告诉我,我如何从网络上获取文本?我需要如何修复?
网址:http ://devanswers.ru/text.php
package com.example.devanswers;
import java.io.IOException;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
import android.app.Activity;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageView;
import android.widget.TextView;
public class MainActivity extends Activity {
TextView DevMainText;
ImageView DevMainImage;
MyTask DevMain;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
DevMainText = (TextView) findViewById(R.id.DevMainText);
DevMainImage = (ImageView) findViewById(R.id.DevMainImage);
OnClickListener onClick = new OnClickListener() {
public void onClick(View v) {
DevMain = new MyTask();
DevMain.execute();
}
};
DevMainImage.setOnClickListener(onClick);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
class MyTask extends AsyncTask<Void, Void, Void> {
@Override
protected void onPreExecute() {
super.onPreExecute();
DevMainImage.setEnabled(false);
}
@Override
protected Void doInBackground(Void... params) {
Document doc;
try {
doc = Jsoup.connect("http://devanswers.ru/text.php").get();
Elements links = doc.getElementsByTag("pre");
for (Element link : links) {
DevMainText.setText((link.text()));
}
} catch (IOException e) {
// TODO Auto-generated catch block
DevMainText.setText("Error");
}
return null;
}
@Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
DevMainImage.setEnabled(true);
}
}
}