一个简单的用python 实现系统登录的http接口服务实例

用python 开发一个登录的http接口:

用户登录数据存在缓存redis里,登录时根据session判断用户是否已登录,session有效,则直接返回用户已登录,否则进mysql查询用户名及密码,用户信息匹配则返回登录成功并同时把seesion写进redis,session有效时间为40分钟。

具体实现如下:

项目结构:

start.py为启动文件:

import os,sys
BASE_PATH = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
sys.path.insert(0,BASE_PATH)
from lib.interface import server
from conf.setting import SERVER_PORT

server.run(host='0.0.0.0',port=SERVER_PORT,debug=True)

 

conf未配置文件,存放常量,setting.py内容:

MYSQL_HOST = '你的ip'
MYSQL_PORT = 3306
SQL_DB = 'api'

MYRDS_HOST = '你的ip'
MYRDS_PORT = '6379'
RDS_DB = 2

SERVER_PORT = 8888  #
SALT = 'dsadsadsada' #

data为常用数据文件 如  msg.py内容:

NOT_NULL = {
    "msg":"必填参数不能为空",
    "code":400
}

lib为函数功能文件:

tool.py主要存放工具类函数或方法:

from conf.setting import MYSQL_HOST,MYSQL_PORT,SQL_DB,SALT,MYRDS_HOST,MYRDS_PORT,RDS_DB

def md5_passwd(str):
    str=str+SALT 
    import hashlib
    md = hashlib.md5()  
    md.update(str.encode())
    res = md.hexdigest()
    return res.upper()

def conn_mysql(sql):
    import pymysql
    conn = pymysql.connect(host=MYSQL_HOST,user ='root',password ='123456',db=SQL_DB,charset='utf8',port=MYSQL_PORT)
    cur = conn.cursor(cursor=pymysql.cursors.DictCursor)
    cur.execute(sql)
    res = cur.fetchone()
    conn.commit()
    cur.close()
    conn.close()
    return res

def my_json(dic):
    import json
    return json.dumps(dic,ensure_ascii=False)

interface.py为http接口服务:

import flask
from lib.tools import conn_mysql,md5_passwd,my_json
from conf.setting import MYRDS_HOST,MYRDS_PORT,RDS_DB
from flask import request
from data.msg import NOT_NULL
server = flask.Flask(__name__)
import redis

@server.route('/login',methods =['post'])
def login():
    username = request.json.get("username")
    password = request.json.get("password")
    password = md5_passwd(password)
    if username and password:
        r1 = redis.Redis(host= MYRDS_HOST, port= MYRDS_PORT, password='123456', db=RDS_DB)
        keys = r1.keys()
        if username.encode() in keys:
                return '{"msg": "你已经登录", "code": 800}'
        else:
            sql = 'select id,username,password from user where username ="%s";' % username
            res = conn_mysql(sql)
            if not res:
                return '{code":200,"msg":"用户名不存在}'
            elif res['password'] == password:
                r1.setex(username,1,1000)
                return '{"code":200,"msg":"登录成功"}'
            else:
                return '{"code":400,"msg":"密码输入错误"}'
    else:
        return my_json(NOT_NULL)

 

posted @ 2017-11-16 18:02  真的,秋风来了  阅读(7279)  评论(0编辑  收藏  举报