江河数据（一）

1 说明

这些数据其实早在2015年底就已经收集，并处理。

1.1 数据说明

数据来源于全国水雨晴信息网站，html表格的形式作为原始的存储。

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1.2 处理与展示

用Mysql数据存储，每月一个Table；通过这个一个table数据又处理为Excel的表格。

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2 写Mysql数据库

2.1 读html写入数据库

以一个月为单位，将这一个月的html数据转存到Mysql的一张表中。

# -*- encoding: utf8 -*-
'''
Created on 2015年12月8日
@author: baoluo
'''
from bs4 import BeautifulSoup
import time
import MySQLdb
import sys
import re
import os
import glob

reload(sys)
sys.setdefaultencoding( 'utf-8' )

def checkDir():
    if not os.path.isdir('./htmls'):
        os.mkdir("./htmls")


def tn():
    t = time.strftime("%Y%m%d", time.localtime())
    #print t,type(t)
    return t

def _w_log(fn):
    #print fn +  '  write log.txt'
    fp = open('log.txt','a+')
    fp.write(time.strftime("%Y-%m-%d %H:%M:%S  ", time.localtime()) + fn + '
')
    fp.close()

def table(fn, tp):
    fp = open(fn,'r')
    html =fp.read()
    fp.close()
    strhtml = html.replace(' ','')

    date =''
    re1 = r'd{4}-d{2}-d{2}'
    rg=re.compile(re1)
    m = rg.findall(strhtml[:7777])
    if m:
        date = m[0]
    #print date
    dbname = date.split('-')[0]+date.split('-')[1]
    sql = ''
    if tp=='hd':
        dbname = 'big_rivers'+dbname
    else:
        dbname = 'reservoir'+ dbname

    #数据库操作
    conn= MySQLdb.connect(
            host='localhost',
            port = 3306,
            user='root',
            passwd='root',
            charset='utf8'
            )
    cur = conn.cursor()
    conn.select_db('information_schema')
    #print 'dbname :->'+dbname
    fl = cur.execute("SELECT * FROM tables WHERE table_name='"+dbname+"';")
    conn.select_db('Grab_Hydrology_Data')
    if 0 == fl :
        print 'Creat new database:' + dbname
        if 'big_rivers' in dbname:
            creatsql = "CREATE TABLE " + dbname + """
                (id  VARCHAR(20)  primary key,
                流域  VARCHAR(20),
                行政区 VARCHAR(30),
                河名 VARCHAR(30),
                站名 VARCHAR(30),
                时间 VARCHAR(30),
                水位 VARCHAR(10),
                流量 VARCHAR(10),
                警戒水位 VARCHAR(10))"""
        else:
            creatsql = "CREATE TABLE " + dbname + """
                (id  VARCHAR(20)  primary key,
                流域  VARCHAR(20),
                行政区 VARCHAR(30),
                河名 VARCHAR(30),
                库名 VARCHAR(30),
                库水位 VARCHAR(10),
                蓄水量 VARCHAR(10),
                入库 VARCHAR(10),
                提顶高程 VARCHAR(10))"""
        #print creatsql
        cur.execute(creatsql)

    soup = BeautifulSoup(strhtml,"html.parser")
    trs= soup.findAll('tr')
    i=0
    #print 'trs',trs
    for tr in trs:
        i += 1
        param=[]
        sp = BeautifulSoup(str(tr),"html.parser")
        tds= sp.findAll('td')
        #print i,'tds',tds
        for td in tds:
            td = str(td)
            #print i,'td ',td
            if 'style' not in td:
                begin=td.index('">')+len('">')
                end=td.index('</')
                param.append(td[begin:end])
            else:
                #print td
                try:
                    td = td.split(')">')[1]
                    param.append(td.split('<')[0])
                except IndexError:
                    td = td.split(');">')[1]
                    param.append(td.split('<')[0])

        idname = "'"+date + ',' + str(i)+"',"
        vs = ''
        #print i,param

        for v in param:
            v = "'" + v.strip() + "'"
            vs += v + ','
        vs = idname + vs[:-1] +')'
        '''
        print param[0].decode('utf8').encode('GBK'),
        param[1].decode('utf8').encode('GBK'),
        param[2].decode('utf8').encode('GBK'),
        param[3].decode('utf8').encode('GBK'),
        param[4],param[5],param[6],param[7]
        '''
        try:
            cur.execute('INSERT INTO '+ dbname + ' VALUES (' + vs)
            conn.commit() # 提交到数据库执行
        except MySQLdb.Error,e:
            print "Mysql Error %d: %s" % (e.args[0], e.args[1])
            if 1062==e.args[0]:
                break
            elif 1064==e.args[0]:
                print vs.decode('utf8').encode('GBK')
                break
            else:
                break
            #print 'Already exists:' + vs.decode('utf8').encode('GBK')
            #_w_log(fn + "  except")
            conn.rollback() # 发生错误时回滚

    cur.close()
    conn.close()


if __name__ == '__main__':
    header = {'User-Agent':'Mozilla/5.0 (Windows NT 5.1; rv:28.0) Gecko/20100101 Firefox/28.0'}
    #checkDir()
    files = glob.glob('./htmdata/htmls-counter/2016/201610*.htm')
    print len(files),"个文件",time.strftime("%Y-%m-%d  %H:%M:%S ", time.localtime())
    for f in files:
        if  ( '江河'  in f.decode('gbk') or 'big_rivers' in f):
            print f.decode('gbk'),time.strftime("%Y-%m-%d  %H:%M:%S ", time.localtime())
            table(f,'hd')
            print time.strftime("%Y-%m-%d  %H:%M:%S ", time.localtime())

        elif '水库' or 'reservoir' in f.decode('gbk'):
            print f.decode('gbk'),time.strftime("%Y-%m-%d  %H:%M:%S ", time.localtime())
            table(f,'sk')
            print time.strftime("%Y-%m-%d  %H:%M:%S ", time.localtime())

2.2 运行结果

（从运行时间上看简直无法直视.....）

59 个文件 2016-11-01  10:04:12 
./htmdata/htmls-counter/201620161001水库数据.htm
Creat new database:reservoir201610
./htmdata/htmls-counter/201620161001江河数据.htm
Mysql Error 1062: Duplicate entry '2016-10-01,1' for key 'PRIMARY'
2016-11-01  10:04:26 
./htmdata/htmls-counter/201620161002水库数据.htm
./htmdata/htmls-counter/201620161002江河数据.htm
Mysql Error 1062: Duplicate entry '2016-10-02,1' for key 'PRIMARY'
2016-11-01  10:05:00 
./htmdata/htmls-counter/201620161003水库数据.htm
./htmdata/htmls-counter/201620161003江河数据.htm
Mysql Error 1062: Duplicate entry '2016-10-03,1' for key 'PRIMARY'
2016-11-01  10:05:36 
./htmdata/htmls-counter/201620161004水库数据.htm
./htmdata/htmls-counter/201620161004江河数据.htm
Mysql Error 1062: Duplicate entry '2016-10-04,1' for key 'PRIMARY'
2016-11-01  10:06:05 
./htmdata/htmls-counter/201620161005水库数据.htm
./htmdata/htmls-counter/201620161005江河数据.htm
Mysql Error 1062: Duplicate entry '2016-10-05,1' for key 'PRIMARY'
2016-11-01  10:06:37 
./htmdata/htmls-counter/201620161006水库数据.htm
./htmdata/htmls-counter/201620161006江河数据.htm
Mysql Error 1062: Duplicate entry '2016-10-06,1' for key 'PRIMARY'
2016-11-01  10:07:08 
./htmdata/htmls-counter/201620161007水库数据.htm
./htmdata/htmls-counter/201620161007江河数据.htm
Mysql Error 1062: Duplicate entry '2016-10-07,1' for key 'PRIMARY'
2016-11-01  10:07:37 
./htmdata/htmls-counter/201620161009水库数据.htm
./htmdata/htmls-counter/201620161009江河数据.htm
Mysql Error 1062: Duplicate entry '2016-10-09,1' for key 'PRIMARY'
2016-11-01  10:08:12 
./htmdata/htmls-counter/201620161010水库数据.htm
./htmdata/htmls-counter/201620161010江河数据.htm
2016-11-01  10:09:47 
./htmdata/htmls-counter/201620161011水库数据.htm
./htmdata/htmls-counter/201620161011江河数据.htm
2016-11-01  10:11:39 
./htmdata/htmls-counter/201620161013水库数据.htm
./htmdata/htmls-counter/201620161013江河数据.htm
2016-11-01  10:13:23 
./htmdata/htmls-counter/201620161013雨水情数据.htm
Mysql Error 1136: Column count doesn't match value count at row 1
./htmdata/htmls-counter/201620161015水库数据.htm
./htmdata/htmls-counter/201620161015江河数据.htm
2016-11-01  10:15:09 
./htmdata/htmls-counter/201620161015雨水情数据.htm
Mysql Error 1136: Column count doesn't match value count at row 1
./htmdata/htmls-counter/201620161016水库数据.htm
./htmdata/htmls-counter/201620161016江河数据.htm
2016-11-01  10:16:45 
./htmdata/htmls-counter/201620161016雨水情数据.htm
Mysql Error 1136: Column count doesn't match value count at row 1
./htmdata/htmls-counter/201620161017水库数据.htm
Mysql Error 1062: Duplicate entry '2016-10-17,1' for key 'PRIMARY'
./htmdata/htmls-counter/201620161017江河数据.htm
Mysql Error 1062: Duplicate entry '2016-10-17,1' for key 'PRIMARY'
2016-11-01  10:16:48 
./htmdata/htmls-counter/201620161018水库数据.htm
./htmdata/htmls-counter/201620161018江河数据.htm
2016-11-01  10:18:30 
./htmdata/htmls-counter/201620161019水库数据.htm
./htmdata/htmls-counter/201620161019江河数据.htm
2016-11-01  10:19:58 
./htmdata/htmls-counter/201620161020水库数据.htm
./htmdata/htmls-counter/201620161020江河数据.htm
2016-11-01  10:21:32 
./htmdata/htmls-counter/201620161021水库数据.htm
./htmdata/htmls-counter/201620161021江河数据.htm
2016-11-01  10:23:46 
./htmdata/htmls-counter/201620161022水库数据.htm
./htmdata/htmls-counter/201620161022江河数据.htm
2016-11-01  10:26:13 
./htmdata/htmls-counter/201620161023水库数据.htm
./htmdata/htmls-counter/201620161023江河数据.htm
2016-11-01  10:28:09 
./htmdata/htmls-counter/201620161024水库数据.htm
./htmdata/htmls-counter/201620161024江河数据.htm
2016-11-01  10:29:56 
./htmdata/htmls-counter/201620161025水库数据.htm
./htmdata/htmls-counter/201620161025江河数据.htm
2016-11-01  10:31:34 
./htmdata/htmls-counter/201620161026水库数据.htm
./htmdata/htmls-counter/201620161026江河数据.htm
2016-11-01  10:33:09 
./htmdata/htmls-counter/201620161027水库数据.htm
./htmdata/htmls-counter/201620161027江河数据.htm
2016-11-01  10:34:45 
./htmdata/htmls-counter/201620161028水库数据.htm
./htmdata/htmls-counter/201620161028江河数据.htm
2016-11-01  10:36:11 
./htmdata/htmls-counter/201620161029水库数据.htm
./htmdata/htmls-counter/201620161029江河数据.htm
2016-11-01  10:37:43 
./htmdata/htmls-counter/201620161030水库数据.htm
./htmdata/htmls-counter/201620161030江河数据.htm
2016-11-01  10:39:17 
./htmdata/htmls-counter/201620161031水库数据.htm
./htmdata/htmls-counter/201620161031江河数据.htm
2016-11-01  10:40:58 
[Finished in 2206.9s]

3 写Excel文件

# -*- encoding: utf-8 -*-

from StringIO import StringIO
import time
from openpyxl.workbook import Workbook
from openpyxl.reader.excel import load_workbook  
from openpyxl.writer.excel import ExcelWriter
import json
import MySQLdb
import os,sys
#reload(sys)
#sys.setdefaultencoding( 'utf-8' )

'''
JSON {"流域":{"站名":{"时间": [水位, 流量 , 警戒水位]},    ...
             {"站名":{"时间", [水位, 流量 , 警戒水位]}  },    ...
      "黄河":{"站名":{ "时间": [水位, 流量 , 警戒水位]},    ...
             {"站名":{"时间", [水位, 流量 , 警戒水位]}  },    ...
      "长江":{"站名":{ "时间": [水位, 流量 , 警戒水位]},    ...
             {"站名":{"时间", [水位, 流量 , 警戒水位]}  },    ...
      }'''
rjson ={}
daterow = {}
def loadJson(dic):
    io = StringIO(dic)
    io = json.dumps(str(io), sort_keys=True)
    return json.loads(io)

def rDB(dbname):
    #数据库操作
    conn= MySQLdb.connect(
            host='localhost',
            port = 3306,
            user='root',
            passwd='root',
            charset='utf8'
            )
    cursor = conn.cursor()
    conn.select_db('information_schema')
    fl = cursor.execute("SELECT * FROM tables WHERE table_name='"+dbname+"';")
    conn.select_db('Grab_Hydrology_Data')
    selectsql = "SELECT 流域, 时间, 站名, 水位, 流量 , 警戒水位 FROM " + dbname
    if 0 == fl :
        print 'NO DB :' + dbname
        cursor.close()
        conn.close()
        return
    else:
        lens = cursor.execute(selectsql)
        results = cursor.fetchall()
        #print type(results),len(results),results[0]
        for nrow  in range(lens):
            #print(results[i][0])
            #设置流域
            rjson.setdefault(results[nrow][0],{})
            #设置站名
            rjson[results[nrow][0]].setdefault(results[nrow][2] ,{})
            #设置时间
            rjson[results[nrow][0]][results[nrow][2]].setdefault(results[nrow][1] ,
                 [results[nrow][3],results[nrow][4],results[nrow][5]])
            #绑定时间
            daterow.setdefault(results[nrow][1],0)

    cursor.close()
    conn.close()

def pyxlWsheet(jss,dbname):
    dic = jss
    tn = time.strftime("%Y%m%d", time.localtime())
    fn = u'江河数据' + dbname + '.xlsx'

    sheet = Workbook()
    ew = ExcelWriter(workbook = sheet)
    ws = sheet.worksheets[0]

    ws.freeze_panes = ws['B4']

    ws.title = u'大江大河'
    ws.cell(row=3, column=1, value=u'时间')

    list =  sorted(daterow.iteritems(),key=lambda t:t[0],reverse=False)
    rowdate = {}
    #dbname = 'big_rivers201512'
    #rtn =  time.strftime("%Y", time.localtime())+'-'
    rtn = dbname[-6:-2]+'-'

    count_line = 3
    for i in range(len(list)):
        if i%2==0:
            count_line += 1
            rowdate[list[i][0]] = count_line
            ws.cell(row=count_line, column=1, value=rtn+list[i][0][:5])
        else:
            rowdate[list[i][0]] = count_line
            
    col = 2
    for k1,v1 in dic.items():
        for k2,v2 in v1.items():
            ws.cell(row=1, column=col, value=k1)
            ws.cell(row=2, column=col, value=k2)
            ws.cell(row=3, column=col, value=u'水位')
            ws.cell(row=3, column=col+1, value=u'流量')

            for k3,v3 in v2.items():
                ws.cell(row=rowdate[k3], column=col, value=v3[0])
                ws.cell(row=rowdate[k3], column=col+1, value=v3[1])
            col+=2
    ws = sheet.create_sheet()
    ws.freeze_panes = ws['A2']
    ws.title = u'警戒水位'
    rows = 1
    ws.cell(row=rows, column=1, value=u'河流')
    ws.cell(row=rows, column=2, value=u'站名')
    ws.cell(row=rows, column=3, value=u'警戒水位')
    for k1,v1 in dic.items():
        for k2,v2 in v1.items():
            rows += 1
            ws.cell(row=rows, column=1, value=k1)
            ws.cell(row=rows, column=2, value=k2)
            for k3,v3 in v2.items():
                ws.cell(row=rows, column=3, value=v3[2])
                break

    ew.save(filename = fn)

def freeze_panes(fn):
    wr1 = load_workbook(filename = fn)
    wr = wr1.worksheets[0]
    p = wr['B4']
    wr.freeze_panes = p
    wr1.save(fn)

if __name__=="__main__":
    dbname = 'big_rivers201610'
    rDB(dbname)
    print len(rjson)
    pyxlWsheet(rjson,dbname)

4 问题

  • Mysql数据库表设计差，写入效率太低。

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原文地址：https://www.cnblogs.com/oucbl/p/6423073.html