Android 开发工具类 24_getHtml

获取网页（JSP）源码

 import java.io.InputStream;
 import java.net.HttpURLConnection;
 import java.net.URL;

 import com.wangjialin.internet.utils.StreamTool;

 public class HtmlService {
     /**
      * 获取网页源码
      * @param path 网页路径
      * @return
      */
     public static String getHtml(String path) throws Exception {

         HttpURLConnection conn = (HttpURLConnection)new URL(path).openConnection();
         conn.setConnectTimeout(5000);
         conn.setRequestMethod("GET");

         if(conn.getResponseCode() == 200){

             InputStream inStream = conn.getInputStream();
             byte[] data = StreamTool.read(inStream);
             return new String(data);
         }
         return null;
     }
 }

StreamTool.java

 import java.io.ByteArrayOutputStream;
 import java.io.InputStream;

 public class StreamTool {

     /**
      * 从流中读取数据
      * @param inStream
      * @return
      */
     public static byte[] read(InputStream inStream) throws Exception{

         ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
         byte[] buffer = new byte[1024];
         int len = 0;

         while((len = inStream.read(buffer)) != -1){
             outputStream.write(buffer, 0, len);
         }
         inStream.close();
         return outputStream.toByteArray();
     }
 }

显示网页源码 pathText = "http://192.168.1.103:8080/ServerForWebCodeViewer/wangjialin.jsp"

     public void showhtml(View v) {

         path = pathText.getText().toString();
         try {
             new Thread(new Runnable(){

                 @Override
                 public void run() {
                     // TODO Auto-generated method stub
                     try {
                         html = HtmlService.getHtml(path);
                     } catch (Exception e) {
                         // TODO Auto-generated catch block
                         e.printStackTrace();
                     }
                 }
             }).start();

             textView.setText(html);
         } catch (Exception e) {
             e.printStackTrace();
             Toast.makeText(getApplicationContext(), R.string.error, Toast.LENGTH_LONG).show();
         }

     }