用python、sqlite3、css、js、html写代码,实现了一个基于SQLite数据库的搜索框功能,包括自动联想提示功能。用户可以在搜索框中输入关键词,并点击“Search”按钮或按下Enter键来进行搜索。程序会在数据库表中查找符合条件的数据,如果查找到了符合条件的结果,则在网页上展示出来;否则,提示用户无法查找到符合条件的结果。当用户输入字符时,JavaScript代码会向服务器发送请求,获取数据库中与输入字符匹配的数据,并在搜索框下方显示出来;提供配套的关联的app.py、search.html、results.html和搜索框自动联想提示功能的JS代码,并指出每个文件放置的路径,代码加注释。
时间: 2023-05-27 14:06:56 浏览: 138
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app.py:
```python
import sqlite3
from flask import Flask, request, render_template, jsonify
app = Flask(__name__)
# 连接数据库
conn = sqlite3.connect('database.db')
c = conn.cursor()
# 搜索数据
def search(keyword):
c.execute("SELECT * FROM table WHERE column LIKE ?", ('%' + keyword + '%',))
rows = c.fetchall()
return rows
# 主页
@app.route('/')
def index():
return render_template('search.html')
# 搜索结果
@app.route('/results', methods=['GET', 'POST'])
def results():
keyword = request.form['keyword']
rows = search(keyword)
return render_template('results.html', rows=rows)
# 自动联想提示
@app.route('/autocomplete', methods=['GET'])
def autocomplete():
keyword = request.args.get('keyword')
rows = search(keyword)
results = []
for row in rows:
results.append(row[1])
return jsonify(results)
if __name__ == '__main__':
app.run(debug=True)
```
search.html:
```html
<!DOCTYPE html>
<html>
<head>
<title>Search</title>
<script src="//code.jquery.com/jquery-1.11.2.min.js"></script>
<script src="//code.jquery.com/ui/1.11.4/jquery-ui.js"></script>
<link rel="stylesheet" href="//code.jquery.com/ui/1.11.4/themes/smoothness/jquery-ui.css">
<script type="text/javascript" src="{{ url_for('static', filename='autocomplete.js') }}"></script>
</head>
<body>
<h1>Search</h1>
<form action="{{ url_for('results') }}" method="POST">
<input type="text" name="keyword" id="search" autocomplete="off">
<button type="submit">Search</button>
</form>
<div id="autocomplete"></div>
</body>
</html>
```
results.html:
```html
<!DOCTYPE html>
<html>
<head>
<title>Results</title>
</head>
<body>
<h1>Results</h1>
{% if rows %}
<table>
<thead>
<tr>
<th>Column 1</th>
<th>Column 2</th>
<th>Column 3</th>
</tr>
</thead>
<tbody>
{% for row in rows %}
<tr>
<td>{{ row[0] }}</td>
<td>{{ row[1] }}</td>
<td>{{ row[2] }}</td>
</tr>
{% endfor %}
</tbody>
</table>
{% else %}
<p>No results found.</p>
{% endif %}
</body>
</html>
```
autocomplete.js:
```javascript
$(function() {
$('#search').autocomplete({
source: function(request, response) {
$.ajax({
url: '/autocomplete',
data: {
keyword: request.term
},
success: function(data) {
response(data);
}
});
},
minLength: 1
});
});
```
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