lujian
卢健
5 years ago
parent
3489845ae8
commit
cd49025acb
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from flask import Flask, render_template
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from mydb import MyDB
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from flask import jsonify
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app = Flask(__name__)
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@app.route('/')
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def hello():
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return render_template('province_top.html')
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@app.route('/province_topn_curconfirm')
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def get_province_curconfirm_topn():
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mydb = MyDB('localhost', 'root', 'lujian123', 'covid19_datas_guangxi')
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results = mydb.get_province_curconfirm_top5() # results : []
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return jsonify(pub_date=results[0][2], privinces=[x[0] for x in results], curConfirms=[x[1] for x in results])
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app.run()
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import pymysql
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from datetime import datetime, timedelta
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import time
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class MyDB:
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def __init__(self, host, user, passwd, db):
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self.conn = pymysql.connect(host, user, passwd, db)
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self.cursor = self.conn.cursor()
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def __del__(self):
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self.conn.close()
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# 获取当然日期
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def get_cur_date(self):
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date = datetime.today()
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curdate = date.strftime('%Y.%m.%d')
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return curdate
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# 获取前N天的日期
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def get_pren_date(self, n=1):
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predate = datetime.today() + timedelta(-n)
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predate = predate.strftime('%Y.%m.%d')
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return predate
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# 获取现有确诊人数最多的5个省份
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def get_province_curconfirm_top5(self):
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curdate = self.get_cur_date() # 获取当天的日期
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sql = "select area,curConfirm,pub_date from province_daily_datas where pub_date like '%s' order by curConfirm desc limit 5" % (curdate + '%')
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print('+++ sql: %s' % sql)
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results = []
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try:
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self.cursor.execute(sql)
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results = self.cursor.fetchall()
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n = 1
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while len(results) <= 0:
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predate = self.get_pren_date(n)
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sql = "select area,curConfirm,pub_date from province_daily_datas where pub_date like '%s' order by curConfirm desc limit 5" % (predate + '%')
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print('+++ presql: %s' % sql)
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self.cursor.execute(sql)
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results = self.cursor.fetchall()
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n += 1
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if n >= 30:
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break
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else:
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time.sleep(1)
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except Exception as e:
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print(e)
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return results
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if __name__ == "__main__":
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mydb = MyDB('127.0.0.1', 'root', 'lujian123', 'covid19_datas_guangxi')
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results = mydb.get_province_curconfirm_top5() # results : []
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File diff suppressed because it is too large
Load Diff
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var myCharts1 = echarts.init(document.getElementById("main1"));
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var option1 = {
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title: {
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text: '现有确诊人数Top5的省份',
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subtext: '',
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left: 'center',
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textStyle:{
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color:'#FF0000',
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fontFamily:'微软雅黑'
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}
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},
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tooltip: {
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trigger: 'item',
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formatter: '{a} <br/>{b} : {c} ({d}%)'
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},
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legend: {
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type: 'scroll',
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orient: 'vertical',
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right: 10,
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top: 20,
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bottom: 20,
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data: []
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},
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series: [
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{
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name: '省份',
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type: 'pie',
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radius: '55%',
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center: ['40%', '50%'],
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data: [],
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emphasis: {
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itemStyle: {
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shadowBlur: 10,
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shadowOffsetX: 0,
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shadowColor: 'rgba(0, 0, 0, 0.5)'
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}
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}
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}
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]
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};
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// 向后台发起请求，获取数据
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$.ajax({
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cache: false,
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type:"GET",
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url:"/province_topn_curconfirm",
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data: null,
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dataType : "json",
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async: false,
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error: function(request) {
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alert("发送请求失败！");
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},
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success: function(result) {
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// pub_date, privinces, curConfirms
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option1.title.subtext = "数据更新时间： " + result.pub_date
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for(i=0; i<result.privinces.length; ++i) {
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option1.legend.data.push(result.privinces[i])
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option1.series[0].data.push({name:result.privinces[i], value:result.curConfirms[i]})
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}
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console.info(result)
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}
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});
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myCharts1.setOption(option1);
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