不从服务器读取文本

我试图从服务器读取所有文本，我认为我的代码不是从服务器检索文本，请你帮我解决这个问题，我是android开发的新手。 提前致谢

public class TestActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); TextView tv= (TextView)findViewById(R.id.my_text); try { URL url = new URL("http://www.google.com:80/"); StringBuilder content = new StringBuilder(); // read text returned by server BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream())); String line; while ((line = in.readLine()) != null) { content.append(line +"\n"); } tv.setText(content.toString()); setContentView(tv); in.close(); } catch (MalformedURLException e) { System.out.println("Malformed URL: " + e.getMessage()); } catch (IOException e) { System.out.println("I/O Error: " + e.getMessage()); } }; } 

Answer 1

采取这些线

 tv.setText(line); setContentView(tv); 

不在循环中

在while循环中使用StringBuilder对象（在循环之前声明）并在其中附加字符串。 while循环后从StringBuilder获取字符串并执行tv.setText（string）

Answer 2

也许你可以尝试这样，只是一个想法：

 StringBuilder content = new StringBuilder(); // read text returned by server BufferedReader in = new BufferedReader(new InputStreamReader(new URL("http://www.google.com:80/").openConnection().getInputStream())); String line; while ((line = in.readLine()) != null) { content.append(line +"\n"); } tv.setText(content.toString()); setContentView(tv);