TestHTTP

package com.jasonhuang.test;

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

import org.apache.log4j.Level;
import org.apache.log4j.Logger;

/** *//**
 * 测试获得http连接及相关信息
 * 
 * @author Jason Huang
 */
public class TestHTTP ...{

    /** *//**
     * Log4j日志
     */
    private static Logger logger = Logger.getLogger(TestHTTP.class);

    /** *//**
     * @param args
     */
    public static void main(String[] args) ...{
        // 设置日志记录级别为INFO
        logger.setLevel(Level.INFO);

        // 网页地址
        String spec = "http://sports.sina.com.cn/f1/2006-09-21/14072468485.shtml";
        URL url = null;

        InputStream input = null;
        int length = 1024;
        byte[] buffer = new byte[length];
        int len = 0;

        try ...{
            url = new URL(spec);
            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            // 打印头信息
            logger.info("ResponseCode: " + conn.getResponseCode());
            logger.info("ContentEncoding: " + conn.getContentEncoding());
            logger.info("ContentType: " + conn.getContentType());
            logger.info("ContentLength: " + conn.getContentLength());

            logger.info("开始从网页连接读取数据并打印！");
            System.out.println();
            input = conn.getInputStream();
            while ((len = input.read(buffer)) > 0) ...{
                System.out.write(buffer, 0, len);
            }
            System.out.println();
            logger.info("结束从网页连接读取数据并打印！");

        } catch (Exception e) ...{
            logger.error(e.getMessage(), e);
        }
    }

}