我做这个项目写了比较多的python和html文件。所以，可能得分几次发文。
先创建Flask项目，然后，在下面构建目录和文件如下：
创建名为MongoDB_data_export的python文件，文件内容如下所示：
#encoding="utf-8"
#Author:Mr.Pan_学狂
#从MongoDB中导出数据
import pymongo
import re
client = pymongo.MongoClient("mongodb://localhost:27017/")
db = client["Car"]
collection = db["options"]
def export():
result = []
options_data_ls = collection.find({})
for options_data in options_data_ls:
# if '_id' in options_data:
del options_data['_id']
s = '{}'.format(options_data)
reg = '{(.*?)}'
ls = re.findall(reg,s)[0]
result.append(ls)
# print(ls)
# print(result)
return result
def data_show():
suv_count = 0
comment_count = 0
machine_count = 0
bsx_count = 0
options_data_ls = collection.find({})
ls = []
# all_length = len(options_data_ls)
for options_data in options_data_ls:
del options_data['_id']
ls.append(options_data)
# print(options_data)
if '级 别' in options_data:
if 'SUV' in options_data['级 别']:
suv_count += 1
if '用户评分 ' in options_data:
if '暂无' in options_data['用户评分 ']:
comment_count+=1
if '发 动 机' in options_data:
machine_count += 1
if '变 速 箱' in options_data:
bsx_count += 1
all_length = len(ls)
other_count = all_length - suv_count
print('其他级别:',round(other_count/all_length,2))
suv_glv = round(suv_count/all_length,2) * 100
No_suv_glv = round(other_count/all_length,2) * 100
print('SUV:',round(suv_count/all_length,2))
have_comment = all_length - comment_count
print('有用户评分:',round(have_comment/all_length,2))
have_comment_glv = round(have_comment/all_length,2) * 100
print('无用户评分:',round(comment_count/all_length,2))
No_comment_glv = round(comment_count/all_length,2) * 100
No_machine = all_length-machine_count
print('电动机:',round(No_machine/all_length,2))
print('发动机:',round(machine_count/all_length,2))
machine_glv = round(machine_count/all_length,2) * 100
No_machine_glv = round(No_machine/all_length,2) * 100
No_bsx = all_length-bsx_count
print('变速箱:',round(bsx_count/all_length,2))
print('非变速箱:',round(No_bsx/all_length,2))
bsx_glv = round(bsx_count/all_length,2) * 100
No_bsx_glv = round(No_bsx/all_length,2) * 100
return suv_glv,No_suv_glv,have_comment_glv,No_comment_glv,machine_glv,No_machine_glv,bsx_glv,No_bsx_glv
if __name__ == '__main__':
data_show()
在Flask框架中创建路由，如下所示：
"""
#encoding="utf-8"
Author:Mr.Pan_学狂
前端和后端结合，
需要连接MongoDB和mysql，
MongoDB负责做数据展示和数据搜索（数据查询）
mysql负责存储和调度用户数据
用pyecharts做数据可视化
"""
from flask import Flask,request,redirect
from flask import render_template
import user_mysql as user
import MongoDB_data_export as Mde
app = Flask(__name__)
@app.route('/')
def index():
return render_template("index.html")
@app.route("/info_show")#全部数据展示
def car_show():
options_ls = Mde.export()
# print(options)
return render_template("info.html",d=options_ls)
@app.route("/search",methods=['GET','POST'])#搜索页面
def car_search():
if request.method == 'POST':
car_name = request.form.get('车名')
car_ls = Mde.export()
data = []
for car in car_ls:
if car_name in car:
data.append(car)
return render_template("search.html",d=data)
return render_template("search.html")
@app.route("/data_show")#数据可视化页面
def data_show():
return "数据可视化页面"
@app.route("/login",methods=["GET","POST"])#用户登录页面
def login():
# data_ls = []
if request.method == "POST":
name = request.form.get('用户名')
pwd = request.form.get('密码')
tup = (name,pwd)
sql = "select * from user;"
data = user.query(sql)
if tup in data:
return redirect('info_show')
else:
return "用户名或密码错误
返回登录页面"
return render_template('login.html')
@app.route("/registration",methods=["POST","GET"])#用户注册页面
def user_regist():
dt = {}
if request.method == "POST":
username = request.form.get('用户名')
password = request.form.get('密码')
sql = "select * from user;"
data = user.query(sql)
# print(data)
for d in data:
dt[d[0]] = d[1]
if username == '':
return "用户名不能为空！！
返回注册页面"
if password == '':
return "密码不能为空！！
返回注册页面"
if username in dt.keys():
return "此用户已存在！！
返回注册页面"
else:
name = "'"+username+"'"
pwd = "'"+password+"'"
sql2 = "insert into user(name,pwd)values({},{})".format(name,pwd)
user.insert_data(sql2)
return render_template('user_registration.html')
@app.route("/history")#用户历史浏览
def user_visit():
return render_template('visit.html')
@app.route("/Author")#作者页面
def introduce():
return render_template('Author.html')
if __name__ == '__main__':
app.run(debug=True)
下几篇文章会把路由对应的html文件公布出来，我可视化还没有搞，先搞可视化，然后再把剩下的内容发上去。我马上做完这个项目就搞机器学习了，因为我的毕设是深度学习的题目，我得马上学会，时间不是很多，项目可能做的不够完善。大家见谅。要是需要项目的源代码，可以与我联系（QQ：2143883550或者是163邮箱：python_jack@163.com）。
最后，感谢大家前来观看鄙人的文章，文中或有诸多不妥之处，还望指出和海涵。
