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();
        }

    }