import java.net.HttpURLConnection;
import java.net.URL;
import java.io.BufferedReader;
import java.io.InputStreamReader;
/** *//**
* 网页阅读器.
* @author AmigoXie
* Creation date: 2007-10-9 - 上午11:47:26
*/
public class PageReader {
//连接对象
    private static HttpURLConnection conn;
/** *//**
* 根据url连接某地址，并返回返回码.
* 返回码说明：
*         0~200为正常情况，其中200为OK
*         其余都为错误的情况，具体请参见w3
* @param urlStr 需连接的url字符串
*/
    private int connect(String urlStr) throws Exception {
URL url = new URL(urlStr);
conn = (HttpURLConnection) url.openConnection();
System.out.println("返回码: " + conn.getResponseCode());
//如果定向的地址经过重定向，
//那么conn.getURL().toString()显示的是重定向后的地址
        System.out.println(conn.getURL().toString());
return conn.getResponseCode();
}
/** *//**
* 读取网页的内容.
* @return 返回网页的内容
*/
    private String readContents() throws Exception {
BufferedReader in = null;
StringBuffer sb = new StringBuffer();
in = new BufferedReader(new InputStreamReader(conn
.getInputStream()));
String inputLine;
while ((inputLine = in.readLine()) != null) {
sb.append(inputLine);
sb.append("\n");
}
return sb.toString();
}
/** *//**
* 中断连接.
*/
    private void disconnect() {
conn.disconnect();
}
/** *//**
* 测试方法
* @param args
* @throws Exception
*/
    public static void main(String[] args) throws Exception {
PageReader reader = new PageReader();
String url = "http://hexapixel.com/download.php?file=com.hexapixel.widgets.ribbon.alphatest.src.jar";
reader.connect(url);
String content = reader.readContents();
System.out.println("网页内容：" + content);
reader.disconnect();
}
}