flask》》Blueprint 蓝图

Ares-Wang2026-04-17 8:25

蓝图加前缀

pp.register_blueprint(auth_bp, url_prefix='/xxx')

python 复制代码

# 创建蓝图时就指定 url_prefix
auth_bp = Blueprint('auth', __name__, url_prefix='/auth')

@auth_bp.route('/login')
def login():
    return "Login page"

# 注册时可以不再指定，或者再添加外层前缀
app.register_blueprint(auth_bp)  # 实际路径：/auth/login
# 或者叠加前缀
app.register_blueprint(auth_bp, url_prefix='/api/v1')  # 实际路径：/api/v1/auth/login

python 复制代码

# project/blueprints/user.py
from flask import Blueprint

user_bp = Blueprint('user', __name__, url_prefix='/user')

@user_bp.route('/profile')
def profile():
    return "User Profile"

# project/blueprints/admin.py
from flask import Blueprint

admin_bp = Blueprint('admin', __name__, url_prefix='/admin')

@admin_bp.route('/settings')
def settings():
    return "Admin Settings"

# app.py
from flask import Flask
from project.blueprints.user import user_bp
from project.blueprints.admin import admin_bp

app = Flask(__name__)

# 注册时统一添加 API 版本前缀
app.register_blueprint(user_bp, url_prefix='/api/v1')
app.register_blueprint(admin_bp, url_prefix='/api/v1')

# 最终路由：
# /api/v1/user/profile
# /api/v1/admin/settings

python 复制代码

# 动态前缀示例
app.config['API_PREFIX'] = '/api/v2'
app.register_blueprint(user_bp, url_prefix=app.config['API_PREFIX'])