使用正则表达式和REPLACE，SPLIT获得7,8,9天单个城市天气情况抓取解析代码

代码写的很凌乱，正则用得也不是很好，不过还是实现了功能，贴出代码

package com.zzk.cn;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.net.MalformedURLException;import java.net.URL;import java.net.URLConnection;import java.util.regex.Matcher;import java.util.regex.Pattern;public class TestSpider {public static void main(String[] args) {URL url = null;URLConnection conn = null;InputStream in = null;InputStreamReader isr = null;BufferedReader br = null;try {url = new URL("http://www.haotq.com/d_anqing.html");conn = url.openConnection();in = conn.getInputStream();isr = new InputStreamReader(in);br = new BufferedReader(isr);String line = "";String info="";while (null != (line = br.readLine())) {//System.out.println(line);info+=line;}//System.out.println(info);Pattern p=Pattern.compile("div\\sid=.weather_day_brief.*?</div>");//正则获取网页大致信息Matcher m=p.matcher(info);String s1="";    while(m.find()) {    s1=m.group();    //System.out.println(s1);    }        String s2="";        Pattern p1=Pattern.compile("<br>.*<script");//正则根据br获取7,8,9天的天气信息    //Pattern p1=Pattern.compile("<(/?\\s?br\\b)>");    Matcher m1=p1.matcher(s1);    while(m1.find()) {    //System.out.println(m1.group());        s2=m1.group();    }    String[] sPlit=s2.split("<br>");     int i=s2.length();     String t1="";    String t2="";    String t3="";    t1=sPlit[7];    t2=sPlit[8];    t3=sPlit[9];    System.out.println(t1);//7天后天气    System.out.println(t2);//8天后天气    System.out.println(t3);//9天后天气            //天气    String[] sPlit1=t1.split(" ");     int i1=t1.length();    System.out.println(sPlit1[1]);//白天阵雨，夜间阵雨，    System.out.println(sPlit1[2]);//气温2℃～9℃    System.out.println(sPlit1[3]);//北偏东风 二级        String w1="";    String w2="";    String w3="";    w1=sPlit1[1];    String[] sPlit4=w1.split("，");    String weather_title71=sPlit4[0].replace("白天", "");//第七天的白天的字段    String weather_title72=sPlit4[1].replace("夜间", "");//第七天的夜晚的字段            System.out.println(weather_title71);//第七天的白天天气情况            System.out.println(weather_title72);//第七天的夜晚天气情况        w2=sPlit1[2];    String[] sPlit5=w2.split("～");    String weather_temp71=sPlit5[0].replace("气温", "");    String weather_temp72=sPlit5[1].replace("~", "").replace("，", "");    System.out.println(weather_temp71);//第七天的最低气温    System.out.println(weather_temp72);//第七天的最高气温        w3=sPlit1[3];    String[] sPlit6=w3.split(" ");    String weather_winddirection71=sPlit6[0];    String weather_windpower71=sPlit6[1];    System.out.println(weather_winddirection71);//第七天的风向    System.out.println(weather_windpower71);//第七天的风力        String[] sPlit2=t2.split(" ");     int i2=t2.length();        String w4="";    String w5="";    String w6="";    w4=sPlit2[1];    String[] sPlit7=w4.split("，");    String weather_title81=sPlit7[0].replace("白天", "");//第八天的白天的字段    String weather_title82=sPlit7[1].replace("夜间", "");//第八天的夜晚的字段            System.out.println(weather_title81);//第八天的白天天气情况            System.out.println(weather_title82);//第八天的夜晚天气情况        w5=sPlit2[2];    String[] sPlit8=w5.split("～");    String weather_temp81=sPlit8[0].replace("气温", "");    String weather_temp82=sPlit8[1].replace("~", "").replace("，", "");    System.out.println(weather_temp81);//第八天的最低气温    System.out.println(weather_temp82);//第八天的最高气温        w6=sPlit2[3];    String[] sPlit9=w6.split(" ");    String weather_winddirection81=sPlit9[0];    String weather_windpower81=sPlit9[1];    System.out.println(weather_winddirection81);//第八天的风向    System.out.println(weather_windpower81);//第八天的风力            String[] sPlit3=t3.split(" ");     int i3=t3.length();    System.out.println(sPlit3[1]);    System.out.println(sPlit3[2]);    System.out.println(sPlit3[3]);        String w7="";    String w8="";    String w9="";    w7=sPlit3[1];    String[] sPlit10=w7.split("，");    String weather_title91=sPlit10[0].replace("白天", "");//第九天的白天的字段    String weather_title92=sPlit10[1].replace("夜间", "");//第九天的夜晚的字段            System.out.println(weather_title91);//第九天的白天天气情况            System.out.println(weather_title92);//第九天的夜晚天气情况        w8=sPlit3[2];    String[] sPlit11=w8.split("～");    String weather_temp91=sPlit11[0].replace("气温", "");    String weather_temp92=sPlit11[1].replace("~", "").replace("，", "");    System.out.println(weather_temp91);//第九天的最低气温    System.out.println(weather_temp92);//第九天的最高气温        w9=sPlit3[3];    String[] sPlit12=w9.split(" ");    String weather_winddirection91=sPlit12[0];    String weather_windpower91=sPlit12[1].replace("<script", "");    System.out.println(weather_winddirection91);//第九天的风向    System.out.println(weather_windpower91);//第九天的风力    } catch (MalformedURLException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();} finally {try {if (null != br) {br.close();}} catch (IOException e) {e.printStackTrace();}br = null;try {if (null != isr) {isr.close();}} catch (IOException e) {e.printStackTrace();}isr = null;try {if (null != in) {in.close();}} catch (IOException e) {e.printStackTrace();}in = null;}}}

输出：

7天后安庆天气： 白天阵雨，夜间阵雨， 气温2℃～9℃， 北偏东风 二级
8天后安庆天气： 白天阵雨，夜间阵雨， 气温-1℃～7℃， 北偏东风 二级
9天后安庆天气：&nbsp;白天局部多云，夜间局部多云，&nbsp;气温-1℃～8℃，&nbsp;北偏东风 二级<script
白天阵雨，夜间阵雨，
气温2℃～9℃，
北偏东风 二级
阵雨
阵雨
2℃
9℃
北偏东风
二级
阵雨
阵雨
-1℃
7℃
北偏东风
二级
白天局部多云，夜间局部多云，
气温-1℃～8℃，
北偏东风 二级<script
局部多云
局部多云
-1℃
8℃
北偏东风
二级