自己做个天气小工具

自己的手机上下了个天气工具，感觉非常棒！自己就想实现一下！
目前的想法就是从提供天气信息的网站上获得相关信息并提取！
http://www.weather.com.cn/
这个网站提供的天气信息非常好，格式也非常符合标准！
信息抓取工具:HttpWatcher

装好HttpWatcher后，在网页中启动HttpWatcher，在IE中输入http://www.weather.com.cn/，并选中一个城市，闭关会抓取网页信息。

这个就不详述了。。。

通过对抓取到的信息的分析，得到一个城市的天气的网页URL为http://www.weather.com.cn/weather/101190101.shtml
我的是江苏南京南京(不要奇怪为什么南京要重复两次，因为南京市还有江宁，浦口。。。)
101190101是什么呢？肯定是所选城市的唯一ID啦~
其实根据实际，我们也应该让用户选择所关心的城市。
所以，我们应该先得到关于所感兴趣的城市的代码。

根据分析，一个所选地区的ID有三层
第一层：所属省份
[img]http://dl.iteye.com/upload/picture/pic/92036/77e6f5e6-41e8-33aa-8bdb-60d2e00cb263.bmp[/img]

第二层:所属城市
[img]http://dl.iteye.com/upload/picture/pic/92038/6d110223-adf6-3d10-869a-024884003650.bmp[/img]

第三层:所在区
[img]http://dl.iteye.com/upload/picture/pic/92040/c4109177-16e1-3f1f-8d29-e80e92e2cc41.bmp[/img]

具体的组织结构就像我们的资源管理器

中国
|____陕西
| |____西安
| | |____西安
| | |____ 户县
|_____江苏
| |___南京
|____南京
|____浦口
|____江宁

通过http://www.weather.com.cn/data/citydata/china.html可以得到省份信息
当然是实用URLConnection得到,当然也可以实用HttpClient！
我们得到的信息：
{"10101":"北京","10102":"上海","10103":"天津","10104":"重庆","10105":"黑龙江","10106":"吉林","10107":"辽宁","10108":"内蒙古","10109":"河北","10110":"山西","10111":"陕西","10112":"山东","10113":"新疆","10114":"西藏","10115":"青海","10116":"甘肃","10117":"宁夏","10118":"河南","10119":"江苏","10120":"湖北","10121":"浙江","10122":"安徽","10123":"福建","10124":"江西","10125":"湖南","10126":"贵州","10127":"四川","10128":"广东","10129":"云南","10130":"广西","10131":"海南","10132":"香港","10133":"澳门","10134":"台湾"}
实用正则表达式提取出来就好了~
得到城市，区都是一样的！
今天先写到这里！
(*^__^*) 嘻嘻……

全部代码：
其中URLs保存了我们需要使用到的URL
MyRegex保存了我们需要提取信息的正则表达式

package WeatherReport.util;

import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class ProvinceAndCity {

	public static Map<String, String> GetProvince() {

		Map<String, String> provinceMap = new HashMap<String, String>();
//		Map<String, String> tmpMap = new HashMap<String, String>();
		// 得到省份
		String content = WebHelper.getHtmlDoc(URLs.ProvinceURL);
		String[] provinces = content.split(",");
		// 构建提取省份的正则表达式
		Pattern proPattern = Pattern.compile(MyRegex.proRegex);
		for (String province : provinces) {
			Matcher proMatcher = proPattern.matcher(province);
			while (proMatcher.find()) {
				String id = proMatcher.group(1);
				String pro = proMatcher.group(2);
				provinceMap.put(pro, id);
				// System.out.println(id+":"+pro);
			}
		}
		CityMapUtil.savePropertiesInHashMap("config/province.txt", provinceMap);
		return provinceMap;
	}

	// 得到城市信息,需要先得到省份信息
	public static Map<String, String> GetCity() {
		// 得到省份信息
		Map<String, String> proMap = GetProvince();
		Set<String> proSet = proMap.keySet();
		Iterator<String> iter = proSet.iterator();
		Map<String, String> cityMap = new HashMap<String, String>();
		while (iter.hasNext()) {
			Map<String, String> tmpMap = new HashMap<String, String>();
			String proID = iter.next();
			String cityURL = URLs.CityURL + proID + ".html";
			String content = WebHelper.getHtmlDoc(cityURL);
			String[] cities = content.split(",");
			// 构建提取城市的正则表达式
			Pattern cityPattern = Pattern.compile(MyRegex.cityRegex);
			for (String city : cities) {
				Matcher proMatcher = cityPattern.matcher(city);
				while (proMatcher.find()) {
					String id = proMatcher.group(1);
					String pro = proMatcher.group(2);
					cityMap.put(proID + id, pro);
					tmpMap.put(pro, proID + id);
					// System.out.println(proID+id+":"+pro);
				}
			}
			CityMapUtil.savePropertiesInHashMap("config/" + proID + ".txt",
					tmpMap);
		}
		return cityMap;
	}

	// 根据指定的省份得到相应的城市
	public static  Map<String, String> GetCity(String provinceID) {
		 Map<String, String> cityMap = new HashMap<String, String>();
		String cityURL = URLs.CityURL + provinceID + ".html";
		String content = WebHelper.getHtmlDoc(cityURL);
		String[] cities = content.split(",");
		// 构建提取城市的正则表达式
		Pattern cityPattern = Pattern.compile(MyRegex.cityRegex);
		for (String city : cities) {
			Matcher proMatcher = cityPattern.matcher(city);
			while (proMatcher.find()) {
				String id = proMatcher.group(1);
				String cityName = proMatcher.group(2);
				cityMap.put(cityName, provinceID+id);
			}
		}
		return cityMap;
	}

	// 得到区域信息
	public static Map<String, String> GetState() {
		// 先得到城市信息
		Map<String, String> cityMap = GetCity();
		Set<String> citySet = cityMap.keySet();
		Iterator<String> iter = citySet.iterator();
		Map<String, String> stateMap = new HashMap<String, String>();
		while (iter.hasNext()) {
			Map<String, String> tmpMap = new HashMap<String, String>();
			String cityID = iter.next();
			String stateURL = URLs.StateURL + cityID + ".html";
			String content = WebHelper.getHtmlDoc(stateURL);
			// System.out.println("stateURL:"+stateURL);
			String[] states = content.split(",");
			// 构建提取城市的正则表达式
			Pattern cityPattern = Pattern.compile(MyRegex.stateRegex);
			for (String state : states) {
				Matcher stateMatcher = cityPattern.matcher(state);
				while (stateMatcher.find()) {
					String id = stateMatcher.group(1);
					String name = stateMatcher.group(2);
					stateMap.put(cityID + id, name);
					tmpMap.put(name, cityID + id);
					// System.out.println(cityID+id+":"+name);
				}
			}
			CityMapUtil.savePropertiesInHashMap("config/" + cityID + ".txt",
					tmpMap);
		}
		return stateMap;
	}

	// 根据制定的城市id,得到区域信息
	public static Map<String, String> GetState(String cityID) {
		Map<String, String> stateMap = new HashMap<String, String>();
		String stateURL = URLs.StateURL + cityID + ".html";
		String content = WebHelper.getHtmlDoc(stateURL);
		// System.out.println("stateURL:"+stateURL);
		String[] states = content.split(",");
		// 构建提取城市的正则表达式
		Pattern cityPattern = Pattern.compile(MyRegex.stateRegex);
		for (String state : states) {
			Matcher stateMatcher = cityPattern.matcher(state);
			while (stateMatcher.find()) {
				String id = stateMatcher.group(1);
				String name = stateMatcher.group(2);
				stateMap.put(name, cityID+id);
			}
		}
		return stateMap;
	}

	public static void main(String[] args) {
		// System.out.println(ProvinceAndCity.GetState());
//		GetState();
		System.out.println(GetCity("10130"));
		System.out.println(GetState("1013014"));
	}
}