移動端和web端 全球疫情數據查詢

首先需要用爬蟲，在這我是用的java進行的爬取丁香園疫情數據 學習位置 https://blog.csdn.net/qq_27471405/article/details/104140132 ,在其基礎上進行了修改以爬取全球數據) 爬取全球數據,並存到電腦上的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();
	}

	/**
	 * 獲取全國各個省市的確診、死亡和治愈人數
	 * 
	 * @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);

		// 正則獲取數據
		// 因為html的數據格式看着就像json格式，所以我們正則獲取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);
			// 各個省市的是一個列表List，如果想保存到數據庫中，要遍歷結果，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();//獲得系統時間.
				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;
	}
	/**
     * 獲取全球各個國家的確診、死亡和治愈人數
     * @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);

		// 正則獲取數據
		// 因為html的數據格式看着就像json格式，所以我們正則獲取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);
			// 各個省市的是一個列表List，如果想保存到數據庫中，要遍歷結果，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();//獲得系統時間.
				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;
	}

}

　　然后通過調取數據庫數據進行圖標和列表展示，效果如圖。

 

移動端連接遠程數據庫實現數據查詢展示

 

 

日期	起始時間	結束時間	活動	備注
3.17	14：00	15:30	聽課
	15：40	18：00	編程	爬取數據並入庫
	19：00	20：30	看視頻	學習雲服務器的構建
3.18	13：00	18：00	學習+跟做	一邊看視頻一變創建自己的服務器
	19：00	20：00	配置服務器	未完成配置
3.19	14：30	15：30	配置服務器	完成基本配置與訪問
	15：50	18：30	安裝數據庫	失敗
	19：30	20：00	學習	看視頻，決定放棄雲服務器
3.20	19：00	22：00	配環境	內網穿透實現其他客戶端的訪問
3.21	7：00	10：00	編程	編寫app項目
	10：10	11：30	編程	建立app與數據庫間的鏈接