在这一学期中,信息管理这门课程主要学习了python语言,前段开发等知识。在这一学期中,我受益匪浅。接下来,让我来总结一下这一学期的学习情况:

    学期之初我刚接触到信息管理这门课程,本来以为是理论课,接下来上课才知道原来是学python 语言以及前段开发。起先是有一些懵懂的,因为自己对代码这一方面没有领悟能力,写代码能力也比较差,但是后来上课之后,我发现Python其实是一门很有趣的语言,跟着老师的节奏走的话,也特别容易明白,而且每节课老师都有给我们时间实践以及布置课后作业,我觉得这是一个很好巩固知识的方法,让我们不得不在课后也花实践去完成作业,这对我知识的加深巩固有很大的作用。接下来是学习用pycharm工具所做的前端开发,在学前端标签的时候,我觉得还是很容易的,而且能设计出自己的网页,也提高了我学习的动力。在css方面,我发现来时在课堂上讲的远远不够,无法满足我的需要,如果我想要别样的样式,这时就需要去网上看相关的学习资料,然后自己加以应用。这也让我领悟到知识是学不完的,老师能教给我们的是方法,自己课后还是要多加学习,才能学得更好。要完成一个完整的网页,我们还需要写后台的主py文件,以及连接数据库,在这一方面,我感觉有点难度了,通常出现一个错误就要找好久才能发现出错的地方,这也是我能力的不足之处,有时候还需要同学的帮忙来发现错误。不过紧跟老师的步伐,上课认真听讲的话,还是可以理解的,思路比较清晰。从开始入门学的时间类,分析文字出现,字典,列表,turtle画图,到现在的前端html+flask+python结合起来的一个项目都比较顺利,具体展示如下:

1、  使用工具

2、  基本页面展示:

(1)       注册页面、导航栏、底部导航栏

(2)       登录页面

 

(3)       发布问卷页面:

 

(4)       首页页面

 

(5)       评论页面:

(6)       个人中心页面:

 

3.第三方库展示,主py文件:

 

4.连接数据库展示,config.py文件:

5、创建数据表:

 

 

 

6、加载静态文件、父模板与其他页面继承

加载静态文件:

 

父模板:

 

其他页面继承:

7.注册页面的html:

{% extends 'base.html' %}
{% block title %}
    注册
{% endblock %}
{%  block head %}
    <link rel="stylesheet" type="text/css" href="{{ url_for('static',filename='css/dl.css') }}">
    <script src="{{ url_for('static',filename='js/zhuce.js') }}"></script>
{% endblock %}
{% block main %}
<div class="box">
    <div id="tittle"><h2 align="center">新用户注册</h2></div>
    <form action="{{ url_for('zhuce') }}" method="post">
    <div class="input_box">
        用户名: <input id="uname" type="text" placeholder="请输入用户名" name="username">
    </div>
    <div class="input_box">
        密码: <input id="upass" type="password" placeholder="请输入密码" name="password">
    </div>
    <div class="input_box ">
        密码:<input id="upass1" type="password" placeholder="请再次输入密码">
    </div>
    <div id="error_box"><br></div>
    <div class="input_box">
        <button onclick="foLogin()">注册</button>
    </div>
    </form>
</div>

 {% endblock %}

注册页面js 文件:

function foLogin() {
            var oUname = document.getElementById("uname");
            var oError = document.getElementById("error_box");
            var oUpass = document.getElementById("upass");
            var oUpass1=document.getElementById("upass1");
            var isoError = true;
            oError.innerHTML = "<br>";

            if (oUname.value.length < 6 || oUname.value.length > 20) {
                oError.innerHTML = "用户名要6-20位";
                isoError = false;
                return isoError;
            }else if((oUname.value.charCodeAt(0)<=48)&&(oUname.value.charCodeAt(0)>=57)){
                oError.innerHTML="首字母不能为数字";
                isoError = false;
                return isoError;
            }else for(var i=0;i<oUname.value.length;i++){
                if((oUname.value.charCodeAt(i)<48||oUname.value.charCodeAt(i)>57)&&(oUname.value.charCodeAt(i)<97||oUname.value.charCodeAt(i)>122)){
                    oError.innerHTML="只能包含字母和数字";
                    isoError = false;
                    return isoError;
                }
            }

            if (oUpass.value.length < 6 || oUpass.value.length > 20){
                oError.innerHTML = "密码要6-20位";
                isoError = false;
                return isoError;
            }
            if(oUpass.value()!=oUpass1.value()){
                oError.innerHTML="两次密码不一致";
                isoError = false;
                return isoError;
            }
            window.alert("注册成功!!")
    return true;

        }

登录页面html 文件:

{% extends 'base.html' %}
{% block title %}
    登录
{% endblock %}
{% block head %}
    <link rel="stylesheet" type="text/css" href="{{ url_for('static',filename='css/dl.css') }}">
    <script src="{{ url_for('static',filename='js/denglu.js') }}"></script>
{% endblock %}


{%  block main %}

    <div class="box">
    <form action="{{ url_for('denglu') }}" method="post">
    <div id="tittle"><h2 align="center">登录</h2></div>
    <div class="input_box">
        账户: <input id="uname" type="text" placeholder="请输入用户名" name="username">
    </div>
    <div class="input_box">
        密码: <input id="upass" type="password" placeholder="请输入密码" name="password">
    </div>
    <div id="error_box"><br></div>
    <div class="input_box">
        <button onclick="foLogin()">登录</button>
    </div>

    <button type="button" onclick="foLogin()"><a href="zhuce.html">注册</a></button>
    </form>
</div>

{% endblock %}

登录js文件:

function foLogin() {
            var oUname = document.getElementById("uname");
            var oError = document.getElementById("error_box");
            var oUpass = document.getElementById("upass");
            var isoError = true;
            oError.innerHTML = "<br>";

            if (oUname.value.length < 6|| oUname.value.length > 20) {
                oError.innerHTML = "用户名要6-20位";
                isoError = false;
               return isoError;
            }else if((oUname.value.charCodeAt(0)<=48)&&(oUname.value.charCodeAt(0)>=57)){
                oError.innerHTML="首字母不能为数字";
                isoError = false;
                return isoError;
            }else for(var i=0;i<oUname.value.length;i++){
                if((oUname.value.charCodeAt(i)<48||oUname.value.charCodeAt(i)>57)&&(oUname.value.charCodeAt(i)<97||oUname.value.charCodeAt(i)>122)){
                    oError.innerHTML="只能包含字母和数字";
                    isoError = false;
                    return isoError;
                }
            }


            if (oUpass.value.length < 6|| oUpass.value.length > 20) {
                oError.innerHTML = "密码要6-20位";
                isoError = false;
                return isoError;
            }

            window.alert("登录成功!!")
    return true;
        

 问卷页面:

{% extends 'base.html' %}
{% block title %}
    问卷调查
{% endblock %}
{% block head %}
    <!-- 引入 Bootstrap -->
      <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
{#    <link rel="stylesheet" type="text/css" href="{{ url_for('static',filename='css/wenjuan.css') }}">#}
{% endblock %}
{% block main %}
<div class="question-box" style="padding-left: 400px">
        <h1>发布问答</h1>
    <form method="post" >
        <div class="box-1">
            <label for="question">问题</label>
            <textarea class="form-control" rows="4" id="question" placeholder="问题" name="title" id="title"
                      style="width: 500px" ></textarea>
            <label for="questionDetail">详情</label>
            <textarea class="form-control" rows="4" id="questionDetail" placeholder="详细评论" name="detail" id="detail"
                      style="width: 500px"></textarea>
            <button type="submit" class="btn btn-default"onclick="">提交</button>

        </div>
        <br>
{#        <div class="input-area">#}
{#            <button type="submit" class="btn btn-default"onclick="">提交</button>#}
{#        </div>#}
    </form>
</div>
{% endblock %}

详情页面:

{% extends 'base.html' %}
{% block title %}问答详情{% endblock %}
{% block head %}
    <!-- 引入 Bootstrap -->
      <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
    {#    <link rel="stylesheet" type="text/css" href="{{ url_for('static',filename='css/wenjuan.css') }}">#}
{% endblock %}
{% block main %}
    <div class="page-headr">
        <h3>标题:{{ ques.title }}<br>
            <small>{{ ques.author.username }}<span class="badge">{{ ques.creat_time }}</span></small>
        </h3>
    </div>
    <p class="lead">内容:{{ ques.detail }}</p>
    <hr>
    <form action="{{ url_for('comment') }}" method="post" style="width: 400px">
        <div class="form-group">
            <textarea name="new_comment" class="form-control" rows="5" id="new-comment"
                      placeholder="Write your comment~" style="width: 850px"></textarea><br>
            <input type="hidden" name="question_id" value="{{ ques.id }}">
        </div>
        <button type="submit" class="btn btn-default" style="width:100px "> 发送
        </button>
    </form>
    <h4>评论:({{ ques.comments|length }})</h4>
    <ul class="list-unstyled" style="width: 900px">
        {% for foo in ques.comments %}
            <li class="list-group-item">
                <a href="{{ url_for('usercenter',user_id=foo.author_id,tag=1) }}">{{ foo.author.username }}</a>

                <span class="badge pull-right">{{ foo.creat_time }}</span>
                <p>{{ foo.detail }}</p>
                <br>
            </li>
        {% endfor %}
    </ul>


{% endblock %}

个人中心:

{% extends 'base.html' %}
{% block title %}个人中心{% endblock %}
{% block head %}
    <style>
        .nav-ul li {
            float: left;
            list-style: none;
            margin: 10px;
            border-bottom: outset;
        }
    </style>
{% endblock %}
{% block main %}
{#    <h3><span class="glyphicon glyphicon-user" aria-hidden="true"></span>{{ user.username }}#}
{#    </h3>#}

    <ul class="nav-ul">
        <li role="presentation"><a href="{{ url_for('usercenter',user_id=user.id,tag=1) }}">全部问答</a></li>
        <li role="presentation"><a href="{{ url_for('usercenter',user_id=user.id,tag=2) }}">全部评论</a></li>
        <li role="presentation"><a href="{{ url_for('usercenter',user_id=user.id,tag=3) }}">个人资料</a></li>
    </ul><br>
{% block usercenter %}{% endblock %}
{% endblock %}

后台操作:

from flask import Flask, render_template, request, redirect, url_for, session
from flask_sqlalchemy import SQLAlchemy
import config
from functools import wraps
from datetime import datetime
from sqlalchemy import or_,and_
from werkzeug.security import generate_password_hash,check_password_hash

app = Flask(__name__)
app.config.from_object(config)
db = SQLAlchemy(app)


class User(db.Model):
    __tablename__ = 'user'
    id = db.Column(db.Integer, primary_key=True, autoincrement=True)
    username = db.Column(db.String(20), nullable=False)
    _password = db.Column(db.String(200), nullable=False)#内部使用
    # nickname = db.Column(db.String(20))
    @property
    def password(self):#外部使用
        return self._password

    @password.setter
    def password(self,row_password):
        self._password=generate_password_hash(row_password)

    def check_password(self,row_password):
        result=check_password_hash(self._password,row_password)
        return result


class Question(db.Model):
    __tablename__='question'
    id = db.Column(db.Integer, primary_key=True, autoincrement=True)
    title=db.Column(db.String(100), nullable=False)
    detail=db.Column(db.Text, nullable=False)
    creat_time=db.Column(db.DateTime, default=datetime.now)
    author_id=db.Column(db.Integer,db.ForeignKey('user.id'))
    author=db.relationship('User',backref=db.backref('question'))


class Comment(db.Model):
    __tablename__='comment'
    id=db.Column(db.Integer, primary_key=True, autoincrement=True)
    author_id = db.Column(db.Integer,db.ForeignKey('user.id'))
    question_id = db.Column(db.Integer,db.ForeignKey('question.id'))
    creat_time = db.Column(db.DateTime, default=datetime.now)
    detail=db.Column(db.Text,nullable=False)
    question=db.relationship('Question',backref=db.backref('comments',order_by=creat_time.desc))
    author=db.relationship('User',backref=db.backref('comments'))

db.create_all()

# user = User(username='mis1114', password='mis1114')
# db.session.add(user)
# db.session.commit()

@app.route('/')
def base():
    return render_template('base.html')


@app.route('/shouye/')
def shouye():
    context={
        'questions':Question.query.order_by('-creat_time').all()
    }
    return render_template('shouye.html',**context)


@app.route('/denglu/', methods=['GET', 'POST'])
def denglu():
    if request.method == 'GET':
        return render_template('denglu.html')
    else:
        username = request.form.get('username')
        password = request.form.get('password')
        user = User.query.filter(User.username == username).first()
        if user:
            if user.check_password(password) :
                session['user'] = username
                session['id']=user.id
                session.permanent = True
                return redirect(url_for('shouye'))
            else:
                return u'password error.'
        else:
            return u'username is not existed.'

@app.context_processor
def mycontext():
    usern = session.get('user')
    if usern:
        return {'username': usern}
    else:
        return {}

@app.route('/logout/')
def logout():
    session.clear()
    return redirect(url_for('base'))

@app.route('/zhuce/', methods=['GET', 'POST'])
def zhuce():
    if request.method == 'GET':
        return render_template('zhuce.html')
    else:
        username = request.form.get('username')
        password = request.form.get('password')
        user = User.query.filter(User.username == username).first()
        if user:
            return 'username existed'
        else:
            user = User(username=username, password=password)
            db.session.add(user)
            db.session.commit()
            return redirect(url_for('denglu'))
            # 跳转到登录页面

def loginFirst(func):
    @wraps(func)
    def wrapper(*args,**kwargs):
        if session.get('user'):
            return func(*args,**kwargs)
        else:
            return redirect(url_for('denglu'))
    return wrapper


@app.route('/wenjuan/',methods=['GET','POST'])
@loginFirst
def wenjuan():
    if request.method=='GET':
        return render_template('wenjuan.html')
    else:
        title=request.form.get('title')
        detail = request.form.get('detail')
        author_id = User.query.filter(User.username == session.get('user')).first().id
        question=Question(title=title,detail=detail,author_id=author_id)
        db.session.add(question)
        db.session.commit()
        return redirect(url_for('shouye'))

@app.route('/xiangqing/<question_id>')
def xiangqing(question_id):
    quest=Question.query.filter(Question.id==question_id).first()
    return render_template('xiangqing.html',ques=quest)


@app.route('/comment/',methods=['POST'])
@loginFirst
def comment():
    comment=request.form.get('new_comment')
    ques_id=request.form.get('question_id')
    auth_id=User.query.filter(User.username==session.get('user')).first().id
    comm=Comment(author_id=auth_id,question_id=ques_id,detail=comment)
    db.session.add(comm)
    db.session.commit()
    return redirect(url_for("xiangqing",question_id=ques_id))

@app.route('/usercenter/<user_id>/<tag>')
@loginFirst
def usercenter(user_id,tag):
    user=User.query.filter(User.id==user_id).first()
    context={
       'user':user,
        'question':user.question,
        'comment':user.comments

    }
    if tag=='1':
        return render_template('usercenter1.html', **context)
    if tag=='2':
        return render_template('usercenter2.html', **context)
    if tag == '3':
        return render_template('usercenter3.html',**context)

@app.route('/search/')
def search():
    qu=request.args.get('q')
    ques=Question.query.filter(
        or_(
            Question.title.contains(qu),
            Question.detail.contains(qu)
        )
    ).order_by('-creat_time')
    return render_template('shouye.html',questions=ques)

if __name__ == '__main__':
    app.run(debug=True)

 

posted on 2018-01-06 14:18  034陈妍希  阅读(125)  评论(0编辑  收藏  举报