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92 lines
2.5 KiB
92 lines
2.5 KiB
5 years ago
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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个国家
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def get_country_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 foreign_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 foreign_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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#测试
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if __name__ == "__main__":
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mydb = MyDB('localhost', 'root', '1999z5g24x', 'text_data_increasing')
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results = mydb.get_country_curconfirm_top5() # results : []
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for i in results:
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print(i)
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from flask import Flask, render_template
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from flask import jsonify
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app = Flask(__name__)
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@app.route('/hello')
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def say_hello():
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return '<html><body><h1>Hello World</h1></body></html>'
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@app.route('/')
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def hello():
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return render_template('we_text.html', name='Jerry')
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@app.route('/country_topn_curconfirm')
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def get_country_curconfirm_topn():
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mydb = MyDB('localhost', 'root', '1999z5g24x', 'text_data_increasing')
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results = mydb.get_country_curconfirm_top5() # results : []
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return jsonify(pub_date=results[0][2], country=[x[0] for x in results], curConfirms=[x[1] for x in results])
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app.run()
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