Flask 应用部署文档（示例）
1. 环境准备
1.1 更新系统包并安装必要的软件：
sudo apt update
sudo apt install python3 python3-pip python3-venv sqlite3 -y
1.2 创建项目目录：
mkdir book_library
cd book_library
1.3 创建并激活虚拟环境：
python3 -m venv venv
source venv/bin/activate
1.4 在虚拟环境中安装 Flask：
pip install flask
2. 项目结构设置
2.1 创建必要的目录和文件：
mkdir templates static
mkdir static/css static/js
touch app.py database.py
touch templates/index.html templates/book.html
touch static/css/style.css static/js/main.js
3. 数据库设置
3.1 创建并初始化 SQLite 数据库：
sqlite3 books.db
CREATE TABLE books (id INTEGER PRIMARY KEY, title TEXT, content TEXT);
CREATE VIRTUAL TABLE books_fts USING fts5(title, content);
INSERT INTO books (title, content) VALUES ('Sample Book', 'This is a sample book content.');
INSERT INTO books_fts (title, content) SELECT title, content FROM books;
.quit
4. 应用代码
4.1 编辑 app.py：
from flask import Flask, render_template, jsonify, request
import sqlite3
app = Flask(__name__)
def get_db_connection():
conn = sqlite3.connect('books.db')
conn.row_factory = sqlite3.Row
return conn
@app.route('/')
def index():
conn = get_db_connection()
books = conn.execute('SELECT * FROM books').fetchall()
conn.close()
return render_template('index.html', books=books)
@app.route('/book/<int:book_id>')
def book(book_id):
conn = get_db_connection()
book = conn.execute('SELECT * FROM books WHERE id = ?', (book_id,)).fetchone()
conn.close()
if book is None:
return "Book not found", 404
return render_template('book.html', book=book)
@app.route('/search')
def search():
query = request.args.get('q', '')
conn = get_db_connection()
results = conn.execute('SELECT * FROM books_fts WHERE books_fts MATCH ? ORDER BY rank', (query,)).fetchall()
conn.close()
return jsonify([dict(row) for row in results])
if __name__ == '__main__':
app.run(debug=True, host='0.0.0.0', port=5000)
5. HTML 模板
5.1 编辑 templates/index.html：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Book Library</title>
<link rel="stylesheet" href="{{ url_for('static', filename='css/style.css') }}">
</head>
<body>
<h1>Book Library</h1>
<input type="text" id="search" placeholder="Search books...">
<ul id="results"></ul>
<h2>All Books:</h2>
<ul>
{% for book in books %}
<li><a href="{{ url_for('book', book_id=book['id']) }}">{{ book['title'] }}</a></li>
{% endfor %}
</ul>
<script src="{{ url_for('static', filename='js/main.js') }}"></script>
</body>
</html>
5.2 编辑 templates/book.html：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>{{ book['title'] }}</title>
<link rel="stylesheet" href="{{ url_for('static', filename='css/style.css') }}">
</head>
<body>
<h1>{{ book['title'] }}</h1>
<p>{{ book['content'] }}</p>
<a href="{{ url_for('index') }}">Back to all books</a>
</body>
</html>
6. 静态文件
6.1 编辑 static/css/style.css：
body {
font-family: Arial, sans-serif;
max-width: 800px;
margin: 0 auto;
padding: 20px;
}
ul {
list-style-type: none;
padding: 0;
}
li {
margin-bottom: 10px;
}
input[type="text"] {
width: 100%;
padding: 10px;
margin-bottom: 20px;
}
6.2 编辑 static/js/main.js：
document.addEventListener('DOMContentLoaded', function() {
const searchInput = document.getElementById('search');
const resultsContainer = document.getElementById('results');
searchInput.addEventListener('input', function() {
if (this.value.length > 2) {
fetch('/search?q=' + this.value)
.then(response => response.json())
.then(data => {
resultsContainer.innerHTML = '';
data.forEach(book => {
const li = document.createElement('li');
li.innerHTML = `<a href="/book/${book.id}">${book.title}</a>`;
resultsContainer.appendChild(li);
});
});
} else {
resultsContainer.innerHTML = '';
}
});
});
7. 运行应用
在项目目录中，确保虚拟环境已激活，然后运行：
python app.py
现在，测试通过 http://192.168.1.100:5000 访问应用。
8.退出虚拟环境：
在当前虚拟环境下比如(venv) root@testserver:/# 执行下面的命令
deactivate