利用flask框架，把数据库的内容用网页展示出来，并可以用关键词进行搜索操作。
一、项目目录
数据库的内容
二、Flask.py
from flask import Flask,request
from flask import render_template
from mysql import Mysql
app = Flask(__name__)
@app.route('/index')
def name():
page = request.args.get('page')
if not page or int(page) == 0:
page = 1
db = Mysql()
keyword = request.args.get('keyword')
items = db.getItems(page, keyword)
page_range = range(int(page) - 3, int(page) + 2)
if int(page) < 4:
page_range = range(1, int(page) + 4)
return render_template('index.html', items=items,page=int(page),prange = page_range)
if __name__ == '__main__':
app.run(app.run(debug=True,port=5222,host='127.0.0.1'))
三、mysql.py
import pymysql
class Mysql(object):
def __init__(self):
try:
self.conn = pymysql.connect(host='localhost',user='root',password='fxl395126',database='nba',charset="utf8")
self.cursor = self.conn.cursor() # 游标对象
print("连接数据库成功")
except:
print("连接失败")
def getItems(self,page,keyword=None):
sql = "select * from news"
if keyword:
sql = sql + " where title like '%" + keyword + "%'"
start = (int(page) - 1) * 10
sql = sql + " limit " + str(start) + ",13"
self.cursor.execute(sql)
items = self.cursor.fetchall()
return items
四、index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="/static/jquery-2.1.4.min.js"></script>
<link rel="stylesheet" href="/static/bootstrap-3.3.7-dist/css/bootstrap.min.css">
<script src="/static/bootstrap-3.3.7-dist/js/bootstrap.min.js"></script>
<style>
.container{
width: 80%;
}
</style>
</head>
<body>
<div class="container">
{# 标题#}
<h2>篮球新闻</h2>
{# 图片#}
<div class="col-md-4">
<img src="../static/basketball.jpg" style="height :700px;width:300px;"/>
</div>
<div class="col-md-8">
{# 搜索关键词#}
<div class="row search">
<div class="col-lg-6">
<div class="input-group">
<form action="/index">
<div class="col-lg-9">
<input type="text" class="form-control" name="keyword" placeholder="关键词">
</div>
<div class="col-lg-3">
<span class="input-group-btn">
<input class="btn btn-default" type="submit"/>
</span></div>
</form>
</div>
</div>
</div>
{# 新闻列表#}
<table class="table mytable-striped">
<thead>
<tr>
<th>序号</th>
<th>标题</th>
</tr>
</thead>
<tbody>
{% for item in items %}
<tr>
<td>{{ item[0]}}</td>
<td>{{ item[1]}}</td>
</tr>
{% endfor %}
</tbody>
</table>
</div>
{# 页数#}
<nav aria-label="Page navigation">
<ul class="pagination">
<li>
<a href="/index?page={{ page - 1 }}" aria-label="Previous">
<span aria-hidden="true">«</span>
</a>
</li>
{% for pg in prange %}
<li><a href="/index?page={{ pg }}">{{ pg }}</a></li>
{% endfor %}
<li>
<a href="/index?page={{ page + 1}}" aria-label="Next">
<span aria-hidden="true">»</span>
</a>
</li>
</ul>
</nav>
</div>
</body>
</html>
五、效果
在关键词框输入勇士并提交，我们可以搜索到有关勇士的新闻有4条
