简单HTTP抓取网页内容

package com.test;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
public class TestHttp {

	public static void main(String[] args) throws Exception {

		String urlString = "http://www.baidu.com";

		HttpURLConnection urlConnection = null;
		URL url = new URL(urlString);
		urlConnection = (HttpURLConnection) url.openConnection();
		urlConnection.setRequestMethod("GET");
		urlConnection.setDoOutput(true);
		urlConnection.setDoInput(true);
		urlConnection.setUseCaches(false);
		InputStream in = urlConnection.getInputStream();
		BufferedReader bufferedReader = new BufferedReader(
				new InputStreamReader(in));
		StringBuffer temp = new StringBuffer();
		String line = bufferedReader.readLine();
		while (line != null) {
			temp.append(line);
			line = bufferedReader.readLine();
		}
		bufferedReader.close();
		String ecod = urlConnection.getContentEncoding();
		if (ecod == null)
			ecod = "UTF-8";
		String result = new String(temp.toString().getBytes(), ecod);
		System.out.println(result);
	}
}