一、操作步驟
1. 導入:import flask,json
2. 執行個體化:api = flask.Flask(__name__)
3. 定義接口通路路徑及通路方式:@api.route('/index',methods=['get/post/PUT/DELETE'])
4. 定義函數,注意需與路徑的名稱一緻,設定傳回類型并支援中文:def index(): return json.dumps(ren,ensure_ascii=False)
5. 三種格式入參通路接口:
5.1 url格式入參:flask.request.args.get('id')
5.2 form-data格式入參:pwd = flask.request.values.get('pwd')
5.3 josn格式入參:pwd = flask.request.json.get('pwd')
6. 啟動服務:api.run(port=8888,debug=True,host='127.0.0.1'),開啟服務之後,就可以通過ip+端口+路徑+入參通路接口
二、源碼舉例
#!/usr/bin/python3
# encoding:utf-8
import flask,json
# 執行個體化api,把目前這個python檔案當作一個服務,__name__代表目前這個python檔案
api = flask.Flask(__name__)
# 'index'是接口路徑,methods不寫,預設get請求
@api.route('/index',methods=['get'])
# get方式通路
def index():
ren = {'msg':'成功通路首頁','msg_code':200}
#json.dumps 序列化時對中文預設使用的ascii編碼.想輸出中文需要指定ensure_ascii=False
return json.dumps(ren,ensure_ascii=False)
#post入參通路方式一:url格式參數
@api.route('/article',methods=['post'])
def article():
#url格式參數?id=12589&name='lishi'
id = flask.request.args.get('id')
if id:
if id == '12589':
ren = {'msg':'成功通路文章','msg_code':200}
else:
ren = {'msg':'找不到文章','msg_code':400}
else:
ren = {'msg':'請輸入文章id參數','msg_code':-1}
return json.dumps(ren,ensure_ascii=False)
#post入參通路方式二:from-data(k-v)格式參數
@api.route('/login',methods=['post'])
def login():
#from-data格式參數
usrname = flask.request.values.get('usrname')
pwd = flask.request.values.get('pwd')
if usrname and pwd:
if usrname =='test' and pwd =='123456':
ren = {'msg':'登入成功','msg_code':200}
else:
ren = {'msg':'使用者名或密碼錯誤','msg_code':-1}
else:
ren = {'msg':'使用者名或密碼為空','msg_code':1001}
return json.dumps(ren,ensure_ascii=False)
#post入參通路方式二:josn格式參數
@api.route('/loginjosn',methods=['post'])
def loginjosn():
#from-data格式參數
usrname = flask.request.json.get('usrname')
pwd = flask.request.json.get('pwd')
if usrname and pwd:
if usrname =='test' and pwd =='123456':
ren = {'msg':'登入成功','msg_code':200}
else:
ren = {'msg':'使用者名或密碼錯誤','msg_code':-1}
else:
ren = {'msg':'使用者名或密碼為空','msg_code':1001}
return json.dumps(ren,ensure_ascii=False)
if __name__ == '__main__':
api.run(port=8888,debug=True,host='127.0.0.1') # 啟動服務
# debug=True,改了代碼後,不用重新開機,它會自動重新開機
# 'host='127.0.0.1'别IP通路位址
運作結果
* Serving Flask app "restful" (lazy loading)
* Environment: production
WARNING: This is a development server. Do not use it in a production deployment.
Use a production WSGI server instead.
* Debug mode: on
* Restarting with stat
* Debugger is active!
* Debugger PIN: 249-915-285
* Running on http://127.0.0.1:8888/ (Press CTRL+C to quit)
三、postman通路接口
get方式,無參數通路接口
![](https://img.laitimes.com/img/9ZDMuAjOiMmIsIjOiQnIsIyZuBnLxkzMxUTOwYjM0ADMyAjMvwlNxcDMwIDMy8CXsxWdm9CXzRWYvxGc19CXhlGZl12Lc52YuUGN54yd3d3Lc9CX6MHc0RHaiojIsJye.png)
post方式,url格式入參通路接口
post方式,form-data格式入參通路接口
post方式,josn格式入參通路接口
以上就是本文的全部内容,希望對大家的學習有所幫助,也希望大家多多支援python部落格。