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read_data_save_to_mysql.py
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read_data_save_to_mysql.py
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# -*- coding: utf-8 -*-
"""
Created on Sun Jul 15 00:01:50 2018
@author: Administrator
"""
import pandas as pd
import pymysql
config = {'user': 'root',
'password': '123456',
'port':3300,
'host': '127.0.0.1',
'db': 'Book',
'charset':'utf8'}
class BookSqlTools:
#链接MYSQL数据库
#读取出来转化成pandas的dataframe格式
def LinkMysql(self, sql):
try:
connection = pymysql.connect(user=config['user'],
password=config['password'],
port=config['port'],
host=config['host'],
db=config['db'],
charset=config['charset'])
cur = connection.cursor()
except Exception as e:
print("Mysql link fail：%s" % e)
try:
cur.execute(sql)
except Exception as e:
print("dont do execute sql")
try:
result1 = cur.fetchall()
title1 = [i[0] for i in cur.description]
Main = pd.DataFrame(result1)
Main.columns = title1
except Exception as e:
print(" select Mysql error：{}".format(e))
return Main
#数据库中的表插入数据
def UpdateMysqlTable(self, data, sql_qingli, sql_insert):
try:
connection = pymysql.connect(user=config['user'],
password=config['password'],
port=config['port'],
host=config['host'],
db=config['db'],
charset=config['charset'])
cursor = connection.cursor()
except Exception as e:
print("Mysql link fail：%s" % e)
try:
cursor.execute(sql_qingli)
except:
print("dont do created table sql")
try:
datas = data.to_dict(orient='records')
for data in datas:
x = list(data.values())
sql = sql_insert.format(tuple(x)).encode(encoding='utf-8')
print(sql)
try:
cursor.execute(sql)
except Exception as e:
print("Mysql insert fail%s" % e)
except Exception as e:
connection.rollback()
print("Mysql insert fail%s" % e)
connection.commit()
cursor.close()
connection.close()
connection = pymysql.connect(user=config['user'],
password=config['password'],
port=config['port'],
host=config['host'],
charset=config['charset'])
cur = connection.cursor()
cur.execute('DROP DATABASE if exists Book')
cur.execute('CREATE DATABASE if not exists Book')
connection.commit()
cur.close()
# 创建购物车表
connection = pymysql.connect(user=config['user'],
password=config['password'],
port=config['port'],
host=config['host'],
db=config['db'],
charset=config['charset'])
cur = connection.cursor()
createCartSql = '''CREATE TABLE Cart
(UserID VARCHAR(100) ,
BookID VARCHAR(100) )'''
cur.execute(createCartSql)
connection.commit()
cur.close()
connection.close()
BookInfoInsert = BookSqlTools()
#--------------------------------------------------------------------------
#读取本地的BX-Users.csv文件 在数据库中建一个User表 将User.csv内容插入到数据库中
#--------------------------------------------------------------------------
path = './data/BX-Users.csv'
User = pd.read_csv(path, sep=None, error_bad_lines=False)
createUserSql = '''CREATE TABLE User
(UserID VARCHAR(100) ,
Location VARCHAR(100) ,
Age VARCHAR(100) );'''
UserSql_insert='insert into User (UserID,Location,Age) values {}'
BookInfoInsert.UpdateMysqlTable(User,createUserSql,UserSql_insert)
del User
#--------------------------------------------------------------------------
#读取本地的BX-Books.csv文件 在数据库中建一个Books表 将book.csv内容插入到数据库中
#--------------------------------------------------------------------------
path = './data/BX-Books.csv'
Book = pd.read_csv(path, sep=None, error_bad_lines=False)
createBooksSql =''' CREATE TABLE Books
(BookID VARCHAR(999) ,
BookTitle VARCHAR(999) ,
BookAuthor VARCHAR(999) ,
PubilcationYear VARCHAR(999) ,
Publisher VARCHAR(999) ,
ImageS VARCHAR(999) ,
ImageM VARCHAR(999) ,
ImageL VARCHAR(999));'''
BooksSql_insert='insert into Books (BookID,BookTitle,BookAuthor,PubilcationYear,Publisher,ImageS,ImageM,ImageL) values {}'
BookInfoInsert.UpdateMysqlTable(Book,createBooksSql,BooksSql_insert)
del Book
#--------------------------------------------------------------------------
#读取本地的BX-Book-Ratings文件 在数据库中建一个Bookrating表 将bookrating.csv内容插入到数据库中
#--------------------------------------------------------------------------
path = './data/BX-Book-Ratings.csv'
Rating = pd.read_csv(path, sep=None, error_bad_lines=False)
createBookratingSql = '''CREATE TABLE Bookrating
(UserID VARCHAR(999) ,
BookID VARCHAR(999) ,
Rating VARCHAR(999));'''
BookratingSql_insert='insert into Bookrating (UserID,BookID,Rating) values {}'
BookInfoInsert.UpdateMysqlTable(Rating,createBookratingSql,BookratingSql_insert)
del Rating
#--------------------------------------------------------------------------
#读取本地的Booktuijian.csv文件 在数据库中建一个Booktuijian表 将Booktuijian.csv内容插入到数据库中
#--------------------------------------------------------------------------
Booktuijian = pd.read_csv('data/booktuijian.csv')
Booktuijian['score'] = Booktuijian['score'].apply(lambda x: round(x,2))
Booktuijian['score'] = 10*(Booktuijian['score'])/(max(Booktuijian['score']))
Booktuijian=Booktuijian[['BookID','UserID','score']]
createBookrecomql = '''CREATE TABLE Booktuijian
(UserID VARCHAR(999) ,
BookID VARCHAR(999) ,
score FLOAT(5,3) );'''
BooktuijianSql_insert='insert into Booktuijian (BookID,UserID,score) values {}'
BookInfoInsert.UpdateMysqlTable(Booktuijian,createBookrecomql ,BooktuijianSql_insert)