java获取未来7天天气数据（中国天气网）

package yuson;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

public class WeatherUtil {
	public static void main(String[] args) {
		String cityCode = "101050810";
		Thread t = new Thread() {
			@Override
			public void run() {
				while(true) {
					try {
						List<Weather> list = getURLInfo("http://www.weather.com.cn/weather/" + cityCode + ".shtml");
						System.out.println(list);
						Thread.sleep(1*1*10*1000);
					} catch (InterruptedException e) {
						e.printStackTrace();
					}
				}
			}
		};
		t.start();
	}

	private static List<Weather> getURLInfo(String urlInfo) {
		URL url;
		try {
			url = new URL(urlInfo);
			HttpURLConnection httpUrl;
			try {
				httpUrl = (HttpURLConnection) url.openConnection();
				InputStream is = httpUrl.getInputStream();
				BufferedReader br = new BufferedReader(new InputStreamReader(is, "utf-8"));
				StringBuilder sb = new StringBuilder();
				String line;
				while ((line = br.readLine()) != null) {
					line = line.replaceAll("</?a[^>]*>", "");
					// line = line.replaceAll("<(\\w+)[^>]*>", "<$1>");
					sb.append(line);
				}
				is.close();
				br.close();
				return getDataStructure(sb.toString().trim());
			} catch (IOException e) {
				e.printStackTrace();
				return null;
			}
		} catch (MalformedURLException e) {
			e.printStackTrace();
			return null;
		}
	}
	
	private static SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM月dd");
	private static SimpleDateFormat sdf2 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

	private static List<Weather> getDataStructure(String str) {
		List<Weather> list = new ArrayList<Weather>();
		String ul = str.split("<ul class=\"t clearfix\">")[1];
		String innerUl = ul.split("</ul>")[0];
		String[] strings = innerUl.split("</li>");
		for (int i = 0; i < strings.length - 1; i++) {
			String s = strings[i];
			Weather wea = new Weather();
			String str1 = s.split("<h1>")[1];
			String ieDate = str1.split("日")[0];
			
			Date date = new Date();
			String format = sdf.format(date);
			String month = format.split("月")[0];
			if (i == 0) {
				wea.setDate(month+"-"+ieDate);
			}else {
				if (Integer.parseInt(ieDate) > Integer.parseInt(strings[i-1].split("<h1>")[1].split("日")[0])) {
					wea.setDate(month+"-"+ieDate);
				}else {
					month = String.valueOf(Integer.parseInt(month) + 1);
					wea.setDate(month+"-"+ieDate);
				}
			}
			
			String str2 = s.split("<p title=\"")[1];
			wea.setWeather(str2.split("\"")[0]);
			String str3 = s.split("<span>")[1];
			wea.setHigh(str3.split("</span>")[0]);
			String str4 = s.split("<i>")[1];
			wea.setLow(str4.split("℃</i>")[0]);
			String str5 = s.split("<span title=\"")[1];
			wea.setWind(str5.split("\"")[0]);
			wea.setCreateTime(sdf2.format(date));
			// System.out.println(wea);
			list.add(wea);
			wea = null;
		}
		return list;
	}
}

class Weather {
	private String date;
	private String weather;
	private String high;
	private String low;
	private String wind;
	private String createTime;

	public String getCreateTime() {
		return createTime;
	}

	public void setCreateTime(String createTime) {
		this.createTime = createTime;
	}

	public String getDate() {
		return date;
	}

	public void setDate(String date) {
		this.date = date;
	}

	public String getWeather() {
		return weather;
	}

	public void setWeather(String weather) {
		this.weather = weather;
	}

	public String getHigh() {
		return high;
	}

	public void setHigh(String high) {
		this.high = high;
	}

	public String getLow() {
		return low;
	}

	public void setLow(String low) {
		this.low = low;
	}

	public String getWind() {
		return wind;
	}

	public void setWind(String wind) {
		this.wind = wind;
	}

	public Weather() {
		super();
	}

	@Override
	public String toString() {
		return "概况 [日期=" + date + ", 天气=" + weather + ", 最高温度=" + high + ", 最低温度=" + low + ", 风向=" + wind + ", 更新时间=" + createTime + "]";
	}

}