用python flask框架搭建一个个人博客

flask作为轻量级框架被广泛应用于中小型的网站开发,不同于javaweb,flask简单易懂适合快速上手,通过以下简单实例制作一个简易网站。

开发前准备
开发技术应用的技术:
前端:jQuery+bootstrap+Ajax
后端:flask+jinjia2+SQLAchemy+pymysql

源码和数据库数据

数据库数据是mysql,数据sql文件在文章最后喔!

工具包通过pip安装即可

pip install sqlalchemy

用python flask框架搭建一个个人博客_第1张图片

如果需要安装对应版本的库则用pip install 库名==版本号

pip install sqlalchemy==1.4.36

用python flask框架搭建一个个人博客_第2张图片

如果出现pip命令报错的现象,跟换pip的下载源移步pip换源。建议均跟换下载源,国外的下载很慢。

# 切换为清华源
pip config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple

当然也可以不用pip下载,在pycharm中编写代码后通过IDE下载,如下

用python flask框架搭建一个个人博客_第3张图片

点击install package pymysql直接安装。

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注意这个项目是好久之前的项目了,用的技术比较旧,建议去flask官网学习最新的技术再移植https://www.osgeo.cn/flask/

本次使用的库及版本如下:

用python flask框架搭建一个个人博客_第4张图片

项目的目录结构如下:

用python flask框架搭建一个个人博客_第5张图片

启动后的页面如下:

登录前只能看文章,登陆后有个人中心,积分,账户,发表文章等功能:

用python flask框架搭建一个个人博客_第6张图片
用python flask框架搭建一个个人博客_第7张图片

页面有点丑哈,这是老早期的库存了。本来不打算更的,开了要不然就丢了,还是写一篇吧

common目录

在这里插入图片描述

# create_connect.py
from sqlalchemy import MetaData
#每个类都要继承flask-SQLAlchemy的db.Mdeol类,封装操作

def extendsModel():
    from main import db
    FactorySession=db.session
    FactoryModel=db.Model
    md=MetaData(bind=db.engine)
    return (FactorySession,FactoryModel,md)
# indentify.py
import random,string


class Figurecode:
    def randomcode(self):
        code=random.sample("abcdefghijklmnopqrstuvwxyz123456789",4)
        return ''.join(code)

在这里插入图片描述

# index.py

from os import abort
from flask import Blueprint, render_template, jsonify, session
from common.indentify import Figurecode
from model.tt_article import Article
from model.tt_user import User
from model.tt_favorite import Favorite
import math,re

index=Blueprint("index",__name__)
#自定义函数
def function_cost(username,cost:int):
    user=User()
    user.buy_article_with_credit(username,cost)
    return index.jinja_env.globals.update(buy=function_cost(username,cost))

"""
#实现jinja2前端渲染(Blueprint内置)将其注册到html中就不用再注册了没使用到注册
@index.context_processor
def jinja2_function():
    pass
"""

#定义主页路由
@index.route('/')         #定义路由模板页面
def home():

    article=Article()
    result=article.find_with_nickname(0,5)
    total_page = math.ceil(article.find_view_artilce_count() / 5)
    #print(result1)
    new, max, random=article.get_three_result()
    return render_template('display.html',result=result,total=total_page,page=1,new=new,max=max,random=random)   #将数据传到前端


#定义文章分页路由
@index.route('/page/')
def pagelimit(page):
    start=(page-1)*5
    article=Article()
    result=article.find_with_nickname(start,5)
    total_page=math.ceil(article.find_view_artilce_count()/5)
    new, max, random = article.get_three_result()
    return render_template('display.html',result=result,page=page,total=total_page,new=new,max=max,random=random)   #page是当前页参数


@index.route('/type/-')    #实现类别并分页
def articletypelimit(type,page):
    article=Article()
    start=(page-1)*5
    result1=article.find_article_by_type(type,start,5)
    paing_count=math.ceil(article.get_diffrent_articelcount_by_type(type)/5)
    new, max, random = article.get_three_result()
    return render_template('article.html',result=result1,paing=paing_count,page=page,type=type,new=new,max=max,random=random)

@index.route('/search/-')
def searchheadline(page,keyword):
    keyword=keyword.strip()
    if len(keyword)==0 or len(keyword)>15 :
        abort(404)
    start=(page-1)*5
    article=Article()
    result1=article.serach_by_headline(keyword,start,5)
    total=math.ceil(article.getcount_by_headline(keyword)/5)
    new, max, random = article.get_three_result()
    return render_template('search.html',result=result1,paing_count=total,keyword=keyword,page=page,new=new,max=max,random=random)

@index.route('/index4')
def function4():
    return render_template('index4.html')

@index.route('/index3')
def function3():
    return render_template('write.html')

@index.route('/article/')  #阅读界面
def function2(id):
    article=Article()
    result1=article.get_article_by_id(id)
    if result1 is None:
        abort(404)
    article.update_read_count(id)
    new, max, random = article.get_three_result()
    favorite=Favorite()
    art_collect=favorite.if_collect(id,session.get('userid'))
    return render_template('read.html',result=result1,new=new,max=max,random=random,collect=art_collect)



"""
@index.route('/test')  #实现前端渲染的路由
def function5():
    '''
    article=Article()
    new,max,random=article.get_three_result()
    list=[]
    list.append(dict(new))
    list.append(dict(max))
    list.append(dict(random))
    return  jsonify(list)    #特定的数据结构才能转化为了json
    '''
    
"""

# useregister.py

from flask import Blueprint, request, session, make_response, json, redirect, url_for, render_template
from common.indentify import *
from model.tt_favorite import Favorite
from model.comment import *

from model.tt_user import User

user = Blueprint('user', __name__)


@user.route('/code')
def get_code():
    figurecode = Figurecode()
    code = figurecode.randomcode()
    response = make_response(code)
    session['code'] = code.lower()
    return response


@user.route('/register', methods=['POST'])
def register():
    user = User()
    username = request.form.get('username')
    password = request.form.get('password')
    code = request.form.get('code')
    if user.identify_user_if_same(username) is False:
        return "USERNAME_IS_EXIST"
    elif code == session.get('code'):
        return 'CODE_ERROR'
    else:
        result = user.recive_registic(username, password)
        session['username'] = username
        session['islogin'] = 'true'
        session['userid'] = result.userid
        session['nickname'] = result.nickname
        session['role'] = result.role
        return 'OK'


@user.route('/login', methods=['POST'])
def login():
    user = User()
    username = request.form.get('username').strip()
    password = request.form.get('password').strip()
    code = request.form.get('code')
    print(username, password, code)
    result = user.identify_user_is_true(username, password)
    # if code != session.get('code'):
    #     return 'CODE ERROR'
    print(result,len(result))
    if len(result) == 0:
        return 'USER UNEXIST'
    elif result[0].password != password:
        return 'PASSWORD ERROR'
    else:
        user.add_credit_once(username)
        session['islogin'] = 'true'
        session['userid'] = result[0].userid
        session['username'] = result[0].username
        session['nickname'] = result[0].nickname
        session['role'] = result[0].role
        return 'LOGIN'

@user.route('/logout')
def logout():
    session.clear()     # 清空session,页面跳转,这里重定位
    return redirect('/')#url_for('/')
    #return render_template('display.html')


#定义文章消耗路由
@user.route('/article_cost',methods=['POST'])
def articlecost():
    user=User()
    username = request.form.get('username')
    cost = int(request.form.get('cost'))
    user.buy_article_with_credit(username,cost)
    return 'OK'

#定义文章收藏
@user.route('/article_favorite',methods=['POST'])
def article_favorite():
    favorite=Favorite()
    artid=request.form.get('articleid')
    userid=request.form.get('userid')
    favorite.insert_favorite(artid,userid)
    return 'OK'

#新增评论
@user.route('/add_comments',methods=['POST'])
def add_comments():
    comment=Comment()
    article_id=request.form.get('articleid')
    comments=request.form.get('content')
    if len(comments)<5 or len(comments)>200:
        return 'ERROR'
    else:
        comment.insert_commnet(article_id, comments)
        return 'OK'


在这里插入图片描述

# comment.py

from flask import session
from sqlalchemy import Table
from common.create_connect import extendsModel
import time
FactorySession,FactoryModel,md=extendsModel()

class Comment(FactoryModel):
    __table__=Table("comment",md,autoload=True)

    #新增一条评论
    def insert_commnet(self,article_id,comments):
        now = time.strftime('%Y-%m-%d')
        comment=Comment(userid=session.get("userid"),articleid=article_id,content=comments,updatetime=now)
        FactorySession.add(comment)
        FactorySession.commit()


    #根据文章id查询所有评论
    def find_comments_by_articelid(self,articleid):
        result=FactorySession.query(Comment).filter(Comment.articleid==articleid,Comment.hide==0).all()
        return result


"""
if __name__=='__main__':
    comment=Comment()
    print(comment.find_comments_by_articelid(7))
"""

# tt_article.py

from sqlalchemy import Table, func
from model.tt_user import User
from common.create_connect import extendsModel
FactorySession,FactoryModel,md=extendsModel()
class Article(FactoryModel):
    __table__=Table('tt_article',md,autoload=True)

    # 定义操作
    #指定分页limit限制和最新显示offset  select * from user limit param1  offset param2 ;  从(param2+1)条数据开始,取 param1条数据
    def find_with_nickname(self,start,count):

        result=FactorySession.query(Article,User.nickname).join(User,User.userid==Article.userid)\
            .filter(Article.hidden==0,Article.drafted==1,Article.checked==1)\
            .order_by(Article.articleid.asc()).limit(count).offset(start).all()
        return result  #将数据库表映射到对象


    #获取文章数量
    def find_view_artilce_count(self):
        count=FactorySession.query(Article).filter(Article.hidden==0,Article.drafted==1,Article.checked==1).count()
        return count

    #根据文章类型获取文章
    def find_article_by_type(self,type,start,count):
        result=FactorySession.query(Article,User.nickname).filter(Article.hidden==0,Article.drafted==1,Article.checked==1,Article.type==type)\
            .order_by(Article.articleid.asc()).limit(count).offset(start).all()       #按文章类型将所有文章查出来
        return result
    #根据文章类型获取不同文章类型的数量
    def get_diffrent_articelcount_by_type(self,type):
        articel_count = FactorySession.query(Article).filter(Article.hidden == 0, Article.drafted == 1,
                                                     Article.checked == 1,Article.type==type).count()
        return articel_count




    #根据文章标题搜索
    def serach_by_headline(self,headline,start,count):
        result = FactorySession.query(Article, User.nickname).filter(Article.hidden == 0, Article.drafted == 1,
                                                                     Article.checked == 1, Article.headline.like('%'+headline+'%') ) \
            .order_by(Article.articleid.asc()).limit(count).offset(start).all()  # 按文章类型将所有文章查出来
        return result

    #统计搜索标题的总数量
    def getcount_by_headline(self,headline):
        articel_count = FactorySession.query(Article).filter(Article.hidden == 0, Article.drafted == 1,
                                                             Article.checked == 1, Article.headline.like('%'+headline+'%')).count()
        return articel_count


    #最新文章推荐
    def get_new_article(self):  #倒叙输出文章
        result=FactorySession.query(Article.articleid,Article.headline)\
            .filter(Article.hidden==0,Article.drafted==1,Article.checked==1,Article.recommended==1)\
            .order_by(Article.articleid.desc()).limit(9).all()
        return result
    #最多阅读文章
    def get_max_readed_articel(self):
        result = FactorySession.query(Article.articleid, Article.headline) \
            .filter(Article.hidden == 0, Article.drafted == 1, Article.checked == 1, Article.recommended == 1) \
            .order_by(Article.readcount.desc()).limit(9).all()  # 倒叙输出文章
        return result
    #特别推荐从推荐随机生成文章
    def get_random_article(self):
        result = FactorySession.query(Article.articleid, Article.headline) \
            .filter(Article.hidden == 0, Article.drafted == 1, Article.checked == 1, Article.recommended == 1) \
            .order_by(func.rand()).limit(9).all()  # 倒叙输出文章
        return result
    #将上述三个结果一次返回
    def get_three_result(self):
        new= self.get_new_article()
        max=self.get_max_readed_articel()
        random=self.get_random_article()
        return new,max,random

    #根据文章id搜索文章
    def get_article_by_id(self,id):
        result = FactorySession.query(Article).filter(Article.hidden == 0, Article.drafted == 1,
                                                             Article.checked == 1, Article.articleid == id).all()
        return result

    #每阅读一次文章阅读量加一
    def update_read_count(self,articleid):
        result = FactorySession.query(Article).filter(Article.articleid==articleid).first()
        result.readcount += 1
        FactorySession.commit()




    '''
    def test_function(self):
        result = FactorySession.query(Article.headline).filter(Article.userid == 3).first()
        return result
    '''






"""测试函数
if __name__=='__main__':
    article = Article()
    #result1 = article.get_diffrent_articelcount_by_type(4)
    #result1=article.test_function()
    #result1=article.get_article_by_id(50)
    #result1=article.get_new_article()
    #print(result1)
    #result=article.update_read_count(1)
    print(article.get_random_article()[0])
"""
# tt_favorite.py


#引入flask-SQLAlchemy的封装类
from flask import session
from sqlalchemy import Table

from common.create_connect import extendsModel
#对flask-SQLAlchemy的封装类实例化
FactorySession,FactoryModel,md=extendsModel()

class Favorite(FactoryModel):
    __table__=Table('tt_favorite',md,autoload=True)

    #插入收藏id
    def insert_favorite(self,articleid,userid):
        result=FactorySession.query(Favorite).filter(Favorite.articleid==articleid,Favorite.userid==userid).all()

        if len(result) !=0 :
            result[0].canceled = 1
        else:
            favorite=Favorite(articleid=articleid,userid=userid,canceled=0)
            FactorySession.add(favorite)
        FactorySession.commit()

    #判断文章是否收藏
    def if_collect(self,articleid,userid):
        result=FactorySession.query(Favorite).filter(Favorite.articleid==articleid,Favorite.userid==userid).all()
        if len(result)==0:
            return "收藏"
        else:
            if result[0].canceled ==1:
                return "收藏"
            else:
                return "已收藏"



'''
if __name__=='__main__':
    f=Favorite()
    #f.insert_favorite(20,2)
    print(f.if_collect(20,51))

'''
#引入flask-SQLAlchemy的封装类
import time
from sqlalchemy import Table

from common.create_connect import extendsModel
#对flask-SQLAlchemy的封装类实例化
FactorySession,FactoryModel,md=extendsModel()
class User(FactoryModel):
    __table__=Table('tt_user',md,autoload=True)

    def identify_user_if_same(self,username):
        result=FactorySession.query(User.username).filter(User.username==username).all()

        if len(result) ==0:
            return True
        else:
            return False

    def identify_user_is_true(self,username,password):
        result=FactorySession.query(User).filter(User.username==username,User.password==password).all()
        return result


    #注册
    def recive_registic(self,username,password):
        now=time.strftime('%Y-%m-%d')
        user=User(username=username,password=password,role='user',credit=50,nickname="用户",avatar='one.png',createtime=now)
        FactorySession.add(user)
        FactorySession.commit()
        return user

    #每登录一次积分加一
    def add_credit_once(self,username):
        user=FactorySession.query(User).filter(User.username==username).first()
        user.credit += 1
        FactorySession.commit()

    def buy_article_with_credit(self,username,cost:int):

        user=FactorySession.query(User).filter(User.username==username).first()
        user.credit -= cost
        FactorySession.commit()




'''
if __name__=='__main__':
    user=User()
    #user.recive_registic("suyanzeng",123456)
    #print(user.identify_user_if_same('zhanglong'))
    #print(user.identify_user_is_true('zhangsan',123456))
    #print(user.add_credit_once('xuwenhui'))
    #print(user.buy_article_with_credit('xuwenhui',10))
    user.buy_article_with_credit('xuwenhui',10)
'''


启动类main.py

#coding=utf-8 
from flask import Flask, render_template, request, current_app
import os
from flask_sqlalchemy import SQLAlchemy
import pymysql
#from gevent import pywsgi
pymysql.install_as_MySQLdb()

app = Flask(__name__, template_folder='template', static_folder='resource', static_url_path='/')
app.config['SECRET_KEY']=os.urandom(24)  #sesession随机种子

#集成的flask-sqlalchemy处理数据库
app.config['SQLALCHEMY_DATABASE_URI']='mysql://root:[email protected]:3306/woliubiji'
app.config['SQLALCHEMY_TRACK_MODIFICATIONS']=False


#实例化sqlalchemy对象
db=SQLAlchemy(app)

#拦截器
@app.errorhandler(404)
def page_error(e):
    return render_template('page_no_found.html')

@app.errorhandler(505)
def server_error(e):
    return render_template('server_is_busy.html')

@app.errorhandler(401)
def page_error(e):
    return 'page_no_found.html',401


#定义文章类别函数,没有用bluepirnt要注册jinja2是blueprint内置的
@app.context_processor   #上下文处理器,对html中的一个字符修改相当于自定义一个函数共jinja2使用
def type_transform():
    typeExample={
        1:"科幻片",
        2:"战争片",
        3:"武侠片",
        4:"电视剧",
        5:"魔幻片"
    }
    return dict(article_type=typeExample)

"""
@app.jinja_env.filters.update  #jinja2自定义过滤器对文字的长度限制
def myTruncate(s,length,end=...):
    pass
"""




if __name__ == '__main__':

    from controller.index import *
    app.register_blueprint(index)

    from controller.userregistic import *
    app.register_blueprint(user)

    # 开启debug模式
 #   app.run(debug=True)
    app.run(host='127.0.0.1',port=5000)
  #  server = pywsgi.WSGIServer(('0.0.0.0', 5000), app)
  #  server.serve_forever()

静态资源

用python flask框架搭建一个个人博客_第8张图片
用python flask框架搭建一个个人博客_第9张图片
用python flask框架搭建一个个人博客_第10张图片

数据库sql文件

用python flask框架搭建一个个人博客_第11张图片

源码和数据库数据

服务器运行
该项目也是可以直接在服务器运行的,如下用法SSH工具上传到服务器

在这里插入图片描述

进入到主目录

在这里插入图片描述
上传到服务器需要将数据库地址改为本地,数据库本地地址对外网来说就是远程地址

在这里插入图片描述

然后输入python3 main.py启动项目

用python flask框架搭建一个个人博客_第12张图片

启动后直接输入ip+端口号访问


需要注意的是,退出SSH工具后就服务就停止了,使用nohup命令启动持久化即可Linux nohup 命令。

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