flask 参数传递有几种方式
flask作为python中web开发的佼佼者框架，使用非常的便捷，今天何三就跟大家聊聊flask参数传递的几种常见方式。
flask参数传递常用方式如下：
- Get方式传参
- Post方式传参
- url路径传参
- json body 传参 ...
1、Get方式传参
代码：
from flask import Flask, request, jsonify
import json
app = Flask(__name__)
@app.route('/')
def index():
return 'hello,world'
# get方式传参数
@app.route('/name')
def getName():
name = request.args.get('name','')
return 'hello,{}'.format(name)
测试
$ curl -i -X GET http://127.0.0.1:5000/name?name=www.h3blog.com
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 20 100 20 0 0 6666 0 --:--:-- --:--:-- --:--:-- 10000HTTP/1.0 200 OK
Content-Type: text/html; charset=utf-8
Content-Length: 20
Server: Werkzeug/1.0.1 Python/3.8.0
Date: Mon, 11 May 2020 08:17:42 GMT
hello,www.h3blog.com
2、Post方式传参
代码
from flask import Flask, request, jsonify
import json
app = Flask(__name__)
@app.route('/')
def index():
return 'hello,world'
# post方式传参数
@app.route('/name',methods=['POST'])
def postName():
name = request.form.get('name','')
return 'hello,{}'.format(name)
测试
$ curl -X POST http://127.0.0.1:5000/name -d 'name=www.h3blog.com' -i % Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 39 100 20 100 19 625 593 --:--:-- --:--:-- --:--:-- 1258HTTP/1.0 200 OK
Content-Type: text/html; charset=utf-8
Content-Length: 20
Server: Werkzeug/1.0.1 Python/3.8.0
Date: Mon, 11 May 2020 08:19:27 GMT
hello,www.h3blog.com
3、url路径传参
代码
from flask import Flask, request, jsonify
import json
app = Flask(__name__)
@app.route('/')
def index():
return 'hello,world'
# url路径参数
@app.route('/name/<name>')
def urlName(name):
return 'hello,{}'.format(name)
测试
$ curl -X GET http://127.0.0.1:5000/name/www.h3blog.com -i
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 20 100 20 0 0 10000 0 --:--:-- --:--:-- --:--:-- 20000HTTP/1.0 200 OK
Content-Type: text/html; charset=utf-8
Content-Length: 20
Server: Werkzeug/1.0.1 Python/3.8.0
Date: Mon, 11 May 2020 08:21:12 GMT
hello,www.h3blog.com
4、json body 传参
代码
from flask import Flask, request, jsonify
import json
app = Flask(__name__)
@app.route('/')
def index():
return 'hello,world'
# ajax body json
@app.route('/json',methods=['POST'])
def json_body():
data = request.get_data(as_text=True)
print(data)
jsonObj = json.loads(data)
return jsonify(jsonObj)
测试
$ curl -X POST -H 'Content-Type:application/json' http://127.0.0.1:5000/json -d '{"name":"www.h3blog.com"}' -i
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 56 100 31 100 25 10333 8333 --:--:-- --:--:-- --:--:-- 28000HTTP/1.0 200 OK
Content-Type: application/json
Content-Length: 31
Server: Werkzeug/1.0.1 Python/3.8.0
Date: Mon, 11 May 2020 08:22:08 GMT
{
"name": "www.h3blog.com"
}
flask传递参数整体代码
from flask import Flask, request, jsonify
import json
app = Flask(__name__)
@app.route('/')
def index():
return 'hello,world'
# get方式传参数
@app.route('/name')
def getName():
name = request.args.get('name','')
return 'hello,{}'.format(name)
# post方式传参数
@app.route('/name',methods=['POST'])
def postName():
name = request.form.get('name','')
return 'hello,{}'.format(name)
# url路径参数
@app.route('/name/<name>')
def urlName(name):
return 'hello,{}'.format(name)
# ajax body json
@app.route('/json',methods=['POST'])
def json_body():
data = request.get_data(as_text=True)
print(data)
jsonObj = json.loads(data)
return jsonify(jsonObj)
总结
flask接收参数还是比较简单的，以上只是对flask参数传递的几点总结，当然还有很多的其他的传参方式，我这里就不一一例举了
