访问网络HTML的简略示例

访问网络HTML的简单示例

核心代码

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String htmlUrl ="http://www.baidu.com";URL url = null;HttpURLConnection conn = null;int respCode = 404;InputStream is = null;try {url = new URL(htmlUrl);conn = (HttpURLConnection) url.openConnection();conn.setRequestMethod("GET");conn.setConnectTimeout(5 * 1000);respCode = conn.getResponseCode();if (respCode == 200) {is = conn.getInputStream();byte[] htmlBytes = StreamTools.in2bytes(is);String temp = new String(htmlBytes);// 比较白痴的获取charset的方法int s = temp.indexOf("charset=") + "charset=".length();int e = temp.indexOf(""", s);String charset = temp.substring(s, e);Log.i(LOG_TAG, charset);tvContent.setText(new String(htmlBytes, charset));Log.i(LOG_TAG, new String(htmlBytes, charset));}} catch (Exception e) {Log.i(LOG_TAG, e.getMessage());e.printStackTrace();}

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工具类?StreamTools

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import java.io.ByteArrayOutputStream;import java.io.InputStream;public class StreamTools {public static byte[] in2bytes(InputStream is) throws Exception {// 1、定义缓冲区// 2、定义字节输出流// 3、循环byte[] buffer = new byte[1024];int len = 0;ByteArrayOutputStream baos = new ByteArrayOutputStream();while ((len = is.read(buffer)) != -1) {baos.write(buffer, 0, len);}is.close();baos.flush();return baos.toByteArray();}}