恋上你的爱

package com.zdao.weather.util;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import com.zdao.weather.bean.Weather;

public class OpenUrl {
	public static void main(String[] args){
		OpenUrl openUrl = new OpenUrl();
		Weather w = openUrl.getWeatherByUrl("http://weather.tq121.com.cn/detail.php?city=武汉");
		System.out.println(w.getDate1());
		System.out.println(w.getTemperature1());
		System.out.println(w.getWeather1());
		System.out.println(w.getWind1());
		
		System.out.println(w.getDate2());
		System.out.println(w.getTemperature2());
		System.out.println(w.getWeather2());
		System.out.println(w.getWind2());
		
		System.out.println(w.getDate3());
		System.out.println(w.getTemperature3());
		System.out.println(w.getWeather3());
		System.out.println(w.getWind3());
		
		System.out.println(w.getDate4());
		System.out.println(w.getTemperature4());
		System.out.println(w.getWeather4());
		System.out.println(w.getWind4());
		
		System.out.println(w.getDate5());
		System.out.println(w.getTemperature5());
		System.out.println(w.getWeather5());
		System.out.println(w.getWind5());
	}
	
	/**
	 * 根据连接抓出5天天气
	 */
	public Weather getWeatherByUrl(String url){
		Weather weather = new Weather();
		try {
			long l1 = System.currentTimeMillis();

			String content = getContent(url);
			weather = getDateTemperature(content , weather);
			weather = getWind3(content , weather);
			weather = getWeather3(content , weather);
			weather = getDate(content , weather);
			weather = getTemperature(content , weather);
			weather = getWind2(content , weather);
			weather = getWeather2(content , weather);
			long l2 = System.currentTimeMillis();
			System.out.println(l2 - l1);
		}catch (Exception e){
			System.out.println(e);
		}
		return weather;
	}

	/**
	 * 根据连接地址抓出页面内容
	 * @param 根据一个连接地址
	 * @return 页面内容
	 */
	private String getContent(String strUrl){
		try{
			URL url = new URL(strUrl);
			BufferedReader br = new BufferedReader(new InputStreamReader(url.openStream()));
			String s = "";
			StringBuffer sb=new StringBuffer();
			while((s = br.readLine())!=null){
				sb.append(s+"\r\n");
			}
			br.close();
			return sb.toString();
		}catch(Exception e){
			return "error open url" + strUrl;
		}
	}

	/**
	 * 取当前3天内的温度和时间
	 * 返回一个天气bean
	 * 0和1 2个参数为第一天时间和温度 后面相同
	 * content 为页面内容
	 * weather 为天气bean
	 */
	private Weather getDateTemperature(String content , Weather weather) throws Exception{
		String[] s = analysis("<td width=\"215\" align=\"center\" valign=\"middle\"><span class=\"big-cn\">(.*?)</span></td>", content , 6);
		weather.setDate1(s[0].trim());
		weather.setTemperature1(s[1].trim());
		weather.setDate2(s[2].trim());
		weather.setTemperature2(s[3].trim());
		weather.setDate3(s[4].trim());
		weather.setTemperature3(s[5].trim());
		return weather;
	}

	/**
	 * 取前3天的风向
	 * content 为页面内容
	 * weather 为天气bean
	 */
	private Weather getWind3(String content , Weather weather){
		String[] s = analysis("<td width=\"215\" align=\"center\" valign=\"middle\"><span class=\"cn\">(.*?)</span></td>", content , 3);
		weather.setWind1(s[0].trim());
		weather.setWind2(s[1].trim());
		weather.setWind3(s[2].trim());
		return weather;
	}
	
	/**
	 * 取前3天的天气情况
	 * content 为页面内容
	 * weather 为天气bean
	 */
	private Weather getWeather3(String content , Weather weather){
		String[] s = analysis("align=\"center\" valign=\"top\"><img src=\"../images/a(.*?).gif\" width=\"70\" height=\"65\"></td>" , content , 6);
		s = ConversionWeather(s);
		weather.setWeather1(s[0]);
		weather.setWeather2(s[1]);
		weather.setWeather3(s[2]);
		return weather;
	}
	
	/**
	 * 取后2天的日期
	 */
	private Weather getDate(String content , Weather weather){
		String[] s = analysis("<td width=\"121\"><span class=\"cn\">(.*?)</span></td>" , content , 2);
		weather.setDate4(s[0].trim());
		weather.setDate5(s[1].trim());
		return weather;
	}
	
	/**
	 * 取后天2天的温度
	 */
	private Weather getTemperature(String content , Weather weather){
		String[] s = analysis("<td width=\"86\" class=\"cn\"><span class=\"wendu\">(.*?)</span></td>" , content , 2);
		weather.setTemperature4(s[0].trim());
		weather.setTemperature5(s[1].trim());
		return weather;
	}
	
	/**
	 * 取后天2天的风向
	 */
	private Weather getWind2(String content , Weather weather){
		String[] s = analysis("<td width=\"157\"><span class=\"cn\">(.*?)</span></td>" , content , 2);
		weather.setWind4(s[0].trim());
		weather.setWind5(s[1].trim());
		return weather;
	}
	
	/**
	 * 
	 */
	private Weather getWeather2(String content , Weather weather){
		String[] s = analysis("<img src=\"../images/b(.*?).gif\" width=\"50\" height=\"46\"></td>" , content , 4);
		s = ConversionWeather(s);
		weather.setWeather4(s[0]);
		weather.setWeather5(s[1]);
		return weather;
	}

	/**
	 * 根据页面内容和正则表达式来分析页面,得到分析结果
	 * @param pattern 正则表达式
	 * @param match 页面内容
	 * @return content 结果
	 */
	private String[] analysis(String pattern, String match , int i){
		Pattern sp = Pattern.compile(pattern);
	    Matcher matcher = sp.matcher(match);
	    String[] content = new String[i];
	    for (int i1 = 0; matcher.find(); i1++){
	    	content[i1] = matcher.group(1);
	    }
	    return content;
	}

	/**
	 * 转换天气情况
	 * @param s第1张图片
	 * @return 天气情况
	 */
	private String[] ConversionWeather(String s[]){
		String[] s1 = {"晴天", "多云", "阴", "阵雨", "雷阵雨", "雷阵雨并伴有冰雹", "雨加雪", "小雨", "中雨", "大雨", "暴雨", "大暴雨", "特大暴雨", "阵雪", "小雪", "中雪", "大雪", "暴雪", "雾", "冻雨", "沙尘暴", "小雨-中雨", "中雨-大雨", "大雨-暴雨", "暴雨-大暴雨", "大暴雨-特大暴雨", "小雪-中雪", "中雪-大雪", "大雪-暴雪", "浮尘", "扬沙", "强沙尘暴"};
		String[] s2 = new String[s.length/2];
		int i1 = 0;
		for (int i = 0; i < s.length; i += 2){
			if (s[i].trim().equals(s[i+1].trim())){
				s2[i1] = s1[Integer.parseInt(s[i])];
			}else {
				s2[i1] = s1[Integer.parseInt(s[i])] + "转" + s1[Integer.parseInt(s[i+1])];
			}
			i1++;
		}
		return s2;
	}
}

package com.zdao.weather.bean;

public class Weather {
	//第1天时间
	private String date1;

	//第1天温度
	private String temperature1;

	//第1天天气情况
	private String weather1;

	//第1天风向
	private String wind1;

	//第2天时间
	private String date2;

	//第2天温度
	private String temperature2;

	//第2天天气情况
	private String weather2;

	//第2天风向
	private String wind2;

	//第3天时间
	private String date3;

	//第3天温度
	private String temperature3;

	//第3天天气情况
	private String weather3;

	//第3天风向
	private String wind3;

	//第4天时间
	private String date4;

	//第4天温度
	private String temperature4;

	//第4天天气情况
	private String weather4;

	//第4天风向
	private String wind4;

	//第5天时间
	private String date5;

	//第5天温度
	private String temperature5;

	//第5天天气情况
	private String weather5;

	//第5天风向
	private String wind5;

	public String getDate1() {
		return date1;
	}

	public void setDate1(String date1) {
		this.date1 = date1;
	}

	public String getDate2() {
		return date2;
	}

	public void setDate2(String date2) {
		this.date2 = date2;
	}

	public String getDate3() {
		return date3;
	}

	public void setDate3(String date3) {
		this.date3 = date3;
	}

	public String getDate4() {
		return date4;
	}

	public void setDate4(String date4) {
		this.date4 = date4;
	}

	public String getDate5() {
		return date5;
	}

	public void setDate5(String date5) {
		this.date5 = date5;
	}

	public String getTemperature1() {
		return temperature1;
	}

	public void setTemperature1(String temperature1) {
		this.temperature1 = temperature1;
	}

	public String getTemperature2() {
		return temperature2;
	}

	public void setTemperature2(String temperature2) {
		this.temperature2 = temperature2;
	}

	public String getTemperature3() {
		return temperature3;
	}

	public void setTemperature3(String temperature3) {
		this.temperature3 = temperature3;
	}

	public String getTemperature4() {
		return temperature4;
	}

	public void setTemperature4(String temperature4) {
		this.temperature4 = temperature4;
	}

	public String getTemperature5() {
		return temperature5;
	}

	public void setTemperature5(String temperature5) {
		this.temperature5 = temperature5;
	}

	public String getWeather1() {
		return weather1;
	}

	public void setWeather1(String weather1) {
		this.weather1 = weather1;
	}

	public String getWeather2() {
		return weather2;
	}

	public void setWeather2(String weather2) {
		this.weather2 = weather2;
	}

	public String getWeather3() {
		return weather3;
	}

	public void setWeather3(String weather3) {
		this.weather3 = weather3;
	}

	public String getWeather4() {
		return weather4;
	}

	public void setWeather4(String weather4) {
		this.weather4 = weather4;
	}

	public String getWeather5() {
		return weather5;
	}

	public void setWeather5(String weather5) {
		this.weather5 = weather5;
	}

	public String getWind1() {
		return wind1;
	}

	public void setWind1(String wind1) {
		this.wind1 = wind1;
	}

	public String getWind2() {
		return wind2;
	}

	public void setWind2(String wind2) {
		this.wind2 = wind2;
	}

	public String getWind3() {
		return wind3;
	}

	public void setWind3(String wind3) {
		this.wind3 = wind3;
	}

	public String getWind4() {
		return wind4;
	}

	public void setWind4(String wind4) {
		this.wind4 = wind4;
	}

	public String getWind5() {
		return wind5;
	}

	public void setWind5(String wind5) {
		this.wind5 = wind5;
	}
}