Android 开发工具类 24_getHtml

 1 import java.io.InputStream;
 2 import java.net.HttpURLConnection;
 3 import java.net.URL;
 4 
 5 import com.wangjialin.internet.utils.StreamTool;
 6 
 7 public class HtmlService {
 8     /**
 9      * 获取网页源码
10      * @param path 网页路径
11      * @return
12      */
13     public static String getHtml(String path) throws Exception {
14         
15         HttpURLConnection conn = (HttpURLConnection)new URL(path).openConnection();
16         conn.setConnectTimeout(5000);
17         conn.setRequestMethod("GET");
18         
19         if(conn.getResponseCode() == 200){
20             
21             InputStream inStream = conn.getInputStream();
22             byte[] data = StreamTool.read(inStream);
23             return new String(data);
24         }
25         return null;
26     }
27 }

 1 import java.io.ByteArrayOutputStream;
 2 import java.io.InputStream;
 3 
 4 public class StreamTool {
 5 
 6     /**
 7      * 从流中读取数据
 8      * @param inStream
 9      * @return
10      */
11     public static byte[] read(InputStream inStream) throws Exception{
12         
13         ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
14         byte[] buffer = new byte[1024];
15         int len = 0;
16         
17         while((len = inStream.read(buffer)) != -1){
18             outputStream.write(buffer, 0, len);
19         }
20         inStream.close();
21         return outputStream.toByteArray();
22     }
23 }

 1     public void showhtml(View v) {
 2         
 3         path = pathText.getText().toString();
 4         try {
 5             new Thread(new Runnable(){
 6 
 7                 @Override
 8                 public void run() {
 9                     // TODO Auto-generated method stub
10                     try {
11                         html = HtmlService.getHtml(path);
12                     } catch (Exception e) {
13                         // TODO Auto-generated catch block
14                         e.printStackTrace();
15                     }
16                 }                
17             }).start();
18             
19             textView.setText(html);
20         } catch (Exception e) {
21             e.printStackTrace();
22             Toast.makeText(getApplicationContext(), R.string.error, Toast.LENGTH_LONG).show();
23         }
24 
25     }