移动端和web端 全球疫情数据查询

首先需要用爬虫，在这我是用的java进行的爬取丁香园疫情数据 学习位置 https://blog.csdn.net/qq_27471405/article/details/104140132 ,在其基础上进行了修改以爬取全球数据) 爬取全球数据,并存到电脑上的MySQL。

package yiqing;


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.security.Timestamp;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

import javax.net.ssl.HttpsURLConnection;
import javax.xml.crypto.Data;

import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
public class WuhanService {
	
	public static void main(String[] args) throws IOException {
		getAreaStat();
		getListByCountryTypeService2(); 
		}
	// 根URL
	private static String httpRequset(String requesturl) throws IOException {
		StringBuffer buffer = null;
		BufferedReader bufferedReader = null;
		InputStreamReader inputStreamReader = null;
		InputStream inputStream = null;
		HttpsURLConnection httpsURLConnection = null;
		try {
			URL url = new URL(requesturl);
			httpsURLConnection = (HttpsURLConnection) url.openConnection();
			httpsURLConnection.setDoInput(true);
			httpsURLConnection.setRequestMethod("GET");
			inputStream = httpsURLConnection.getInputStream();
			inputStreamReader = new InputStreamReader(inputStream, "utf-8");
			bufferedReader = new BufferedReader(inputStreamReader);
			buffer = new StringBuffer();
			String str = null;
			while ((str = bufferedReader.readLine()) != null) {
				buffer.append(str);
			}
		} catch (MalformedURLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

		return buffer.toString();
	}

	/**
	 * 获取全国各个省市的确诊、死亡和治愈人数
	 * 
	 * @return
	 */
	
	public static String getAreaStat() {
		String url = "https://ncov.dxy.cn/ncovh5/view/pneumonia";
		String htmlResult = "";
		try {
			htmlResult = httpRequset(url);
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		// System.out.println(htmlResult);

		// 正则获取数据
		// 因为html的数据格式看着就像json格式，所以我们正则获取json
		String reg = "window.getAreaStat = (.*?)\}(?=catch)";
		Pattern totalPattern = Pattern.compile(reg);
		Matcher totalMatcher = totalPattern.matcher(htmlResult);

		String result = "";
		if (totalMatcher.find()) {
			result = totalMatcher.group(1);
			System.out.println(result);
			// 各个省市的是一个列表List，如果想保存到数据库中，要遍历结果，下面是demo
			JSONArray array = JSONArray.parseArray(result);
			DBUTIL l = new DBUTIL();
			try {
				Connection con = l.lin("VData");
				Statement stmt = con.createStatement();

				Date date = new Date();//获得系统时间.
				SimpleDateFormat sdf =   new SimpleDateFormat( "yyyy-MM-dd hh:mm:ss" );
				String nowTime = sdf.format(date);

				for (int i = 0; i <= 30; i++) {

					com.alibaba.fastjson.JSONObject jsonObject = com.alibaba.fastjson.JSONObject
							.parseObject(array.getString(i));

				
					    String provinceName = jsonObject.getString("provinceName");
					    String cityname1 = " ";
						String confirmed = jsonObject.getString("confirmedCount");
						String cured = jsonObject.getString("curedCount");
						String dead = jsonObject.getString("deadCount");
						String suspect = jsonObject.getString("suspectedCount");
						stmt.executeUpdate("insert into info2(Date,Province,City,Confirmed_num,Yisi_num,Cured_num,Dead_num) values('"+ nowTime + "','"+ provinceName + "','"+ cityname1 + "','" + confirmed + "','" + suspect +"','" + cured +"','" + dead +"')");
						
						JSONArray array2 = jsonObject.getJSONArray("cities");
						for (int j = 0; j < array2.size(); j++) {
							com.alibaba.fastjson.JSONObject jsonObject2 = com.alibaba.fastjson.JSONObject
									.parseObject(array2.getString(j));
							String provinceName2 = jsonObject.getString("provinceName");
							String cityname = jsonObject2.getString("cityName");
							String confirmed2 = jsonObject2.getString("confirmedCount");
							String cured2 = jsonObject2.getString("curedCount");
							String dead2 = jsonObject2.getString("deadCount");
							String suspect2 = jsonObject2.getString("suspectedCount");
							stmt.executeUpdate("insert into info3(Date,Province,City,Confirmed_num,Yisi_num,Cured_num,Dead_num) values('"+ nowTime + "','"+ provinceName2 + "','"+ cityname + "','" + confirmed2 + "','" + suspect2 +"','" + cured2 +"','" + dead2 +"')");
				}
			}
				stmt.close();
				con.close();
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		return result;
	}
	/**
     * 获取全球各个国家的确诊、死亡和治愈人数
     * @return
     */
	public static String getListByCountryTypeService2() {
		String url = "https://ncov.dxy.cn/ncovh5/view/pneumonia";
		String htmlResult = "";
		try {
			htmlResult = httpRequset(url);
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		// System.out.println(htmlResult);

		// 正则获取数据
		// 因为html的数据格式看着就像json格式，所以我们正则获取json
		String reg = "window.getListByCountryTypeService2true = (.*?)\}(?=catch)";
		Pattern totalPattern = Pattern.compile(reg);
		Matcher totalMatcher = totalPattern.matcher(htmlResult);

		String result = "";
		if (totalMatcher.find()) {
			result = totalMatcher.group(1);
			System.out.println(result);
			// 各个省市的是一个列表List，如果想保存到数据库中，要遍历结果，下面是demo
			JSONArray array = JSONArray.parseArray(result);
			DBUTIL l = new DBUTIL();
			try {
				Connection con = l.lin("VData");
				Statement stmt = con.createStatement();

				Date date = new Date();//获得系统时间.
				SimpleDateFormat sdf =   new SimpleDateFormat( "yyyy-MM-dd hh:mm:ss" );
				String nowTime = sdf.format(date);

				for (int i = 0; i <array.size(); i++) {
			com.alibaba.fastjson.JSONObject jsonObject = com.alibaba.fastjson.JSONObject
					.parseObject(array.getString(i));	
			    String continents =jsonObject.getString("continents");
			    String provinceName = jsonObject.getString("provinceName");
				String confirmed = jsonObject.getString("confirmedCount");
				String cured = jsonObject.getString("curedCount");
				String dead = jsonObject.getString("deadCount");
				String suspect = jsonObject.getString("suspectedCount");
				stmt.executeUpdate("insert into info4(Date,Continents,Province,Confirmed_num,Yisi_num,Cured_num,Dead_num) values('"+ nowTime + "','"+ continents + "','"+ provinceName + "','" + confirmed + "','" + suspect +"','" + cured +"','" + dead +"')");
					
				}
				stmt.close();
				con.close();
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
	}
		return result;
	}

}

　　然后通过调取数据库数据进行图标和列表展示，效果如图。

移动端连接远程数据库实现数据查询展示

日期	起始时间	结束时间	活动	备注
3.17	14：00	15:30	听课
	15：40	18：00	编程	爬取数据并入库
	19：00	20：30	看视频	学习云服务器的构建
3.18	13：00	18：00	学习+跟做	一边看视频一变创建自己的服务器
	19：00	20：00	配置服务器	未完成配置
3.19	14：30	15：30	配置服务器	完成基本配置与访问
	15：50	18：30	安装数据库	失败
	19：30	20：00	学习	看视频，决定放弃云服务器
3.20	19：00	22：00	配环境	内网穿透实现其他客户端的访问
3.21	7：00	10：00	编程	编写app项目
	10：10	11：30	编程	建立app与数据库间的链接