1.falsk介面開發、連線資料庫

import flask
import datetime
import json
import tools

server=flask.Flask(__name__)
#獲取當前時間介面
@server.route('/time')
def get_time():
    now=str(datetime.datetime.now())
    return '現在的時間是:%s'%now

@server.route('/login',methods=['post','get'])

def login():
    #args只能獲取到url裡面的引數,values都是能正常獲取
    # uname=flask.request.args.get('username')
    # passwd=flask.request.args.get('passwd')
    uname = flask.request.values.get('username')
    passwd = flask.request.values.get('passwd')
    if uname and passwd:
        sql="select username,passwd   from app_myuser where username='%s' \
         and passwd='%s'"%(uname,passwd)
        result=tools.my_sql(sql)
        if result:
            res= {"code":"0","msg":"登入成功"}
        else:
            res={"code":"2001","msg":"賬號密碼不對"}
    else:
        res={"error_code":3000,"msg":"必填引數未填，請檢視介面文件"}
    #ensure_ascii=False 顯示中文
    return json.dumps(res,ensure_ascii=False,indent=5)





#host='127.0.0.2'區域網設定連線的地址

#設定debug=True 加上它就不需要重新啟動了
server.run(host='0.0.0.0',port=8989,debug=True)

2.介面開發接收json格式入參
  需求，開發新增學生資訊介面

def add_student():
    params=flask.request.json
    if  params:
        name=params.get('name')
        sex = params.get('sex','男') #如果沒有傳預設是男
        age = params.get('age') #int
        addr = params.get('addr')
        grade = params.get('grade')
        phone = str(params.get('phone') )#電話只能是11位,校驗電話是否重複
        # name = params.get('name')
        gold = str(params.get('gold') )#金幣可以是小數
        if name and age and addr and grade and phone:
            if sex not in ['男',"女"]:
                res={"error_code":"3002","msg":"輸入的性別有誤"}
            elif len((phone))!=11 or not phone.isdigit():
                res = {"error_code": "3002", "msg": "輸入的手機號碼有誤"}
            elif  not str(age).isdigit() or int(age)<0:
                res = {"error_code": "3002", "msg": "輸入的年齡有誤"}
            elif   not gold.isdigit() and not tools.check_float(gold) :
                res = {"error_code": "3002", "msg": "輸入的金幣有誤"}
            else:
                sql="select phone from app_student where phone='%s'"%(phone)
                reuslt=tools.my_sql(sql)
                if reuslt:
                    res={"error_code": "3004", "msg": "手機號重複"}
                else:
                    sql="insert into app_student (NAME ,sex,age,addr,grade,phone,gold) values('%s','%s','%s','%s','%s','%s','%s')"%(name,sex,age,addr,grade,phone,gold)
                    tools.my_sql(sql)
                    res={"code":"0","msg":"新增學生資訊成功"}
        else:
            res={"error_code":"3001","msg":"必填引數未填請檢視介面文件"}

    else:
        res={"error_code":"3001","msg":"入參不能為空"}

3.上傳檔案介面