python 链接sqlserver 写接口

我是使用pymssql完成的sqlserver，首先下载符合版本的pymssql的whl，然后安装，在pycharm的default setting->project Interpreter中确定项目的Interpreter有pymssql，然后就开始了~

` # -- coding:utf-8 --
import hashlib
import hmac
import json
import pymssql
from requests import Response
from rest_framework import status, generics
from rest_framework.decorators import api_view
from rest_framework.views import APIView
from django.http import HttpResponse, HttpRequest
@api_view([‘GET’, ‘POST’])
def userlogin(req,format=None):
ms = MSSQL(host=”你的IP地址”, user=”你的数据库账号”, pwd=”你的数据库密码”, db=”你的数据库名”)
if req.method == ‘GET’:
username = req.GET[‘username’]
password = req.GET[‘password’]
elif req.method == ‘POST’:
username= req.POST[‘username’]
password = req.POST[‘password’]
newsql = “select * from System_Users where Mobile = ‘”+username+”’”
print(newsql)
reslist = ms.ExecQuery(newsql.encode(‘utf-8’))
# //验证password加密后==LoginPwd
print(password)
print(reslist[0].get(“LoginKey”))
if Encrypt(password,reslist[0].get(“LoginKey”))==reslist[0].get(“LoginKey”):
reslist =json_success(reslist)
else:
reslist =json_error(reslist)
# meizis = System_Users.objects.all()
# serializer = MeiziSerializer(reslist, many=True)
# return Response(serializer.data)
return HttpResponse(json.dumps(reslist, default=lambda obj: obj.dict), content_type=’application/json’)
# return reslist

def Encrypt(password=”“,salt = “”):
clearBytes=[]
hasheByte=[]
# # encoding = unicode
# clearBytes= bytes(salt.lower().strip()+password.strip(),encoding=’Unicode’)
# salt = crypt.mksalt(crypt.METHOD_SHA512)
# 然后再进行数据加密:
# hasheByte = crypt.crypt(“helloworld”, salt)
# hasheByte =crypt.crypt(clearBytes, salt)
# password = hmac.new(key=clearBytes, msg=password)
# 待加密信息
str =salt.lower().strip()+password.strip()
# 创建md5对象
hl = hashlib.md5()
# Tips
# 此处必须声明encode
# 若写法为hl.update(str) 报错为： Unicode-objects must be encoded before hashing
print(‘MD5加密前为：’ + str)
hl.update(str.encode(encoding=’utf-16’))
print(‘MD5加密后为：’ + hl.hexdigest())
hl.update(str.encode(encoding=’UTF-8’))
print(‘MD5加密后为：’ + hl.hexdigest())
hl.update(str.encode(encoding=’GBK’))
print(‘MD5加密后为：’ + hl.hexdigest())
hl.update(str.encode(encoding=’GB2312’))
print(‘MD5加密后为：’ + hl.hexdigest())
print(password)
return password

def json_success(data, code=200, foreign_penetrate=False, **kwargs):
data = {
“status”: code,
“msg”: “成功”,
“data”: data,
}
print(data)
return data

def json_error(error_string=”失败”, code=500, **kwargs):
data = {
“status”: code,
“msg”: error_string,
“data”: {}
}
data.update(kwargs)
return data

class MSSQL:
def init(self, host, user, pwd, db):
self.host = host
self.user = user
self.pwd = pwd
self.db = db

def __GetConnect(self):
    if not self.db:
        raise (NameError, "没有设置数据库信息")
    self.conn = pymssql.connect(host=self.host, user=self.user, password=self.pwd, database=self.db, charset="GBK")
    cur = self.conn.cursor()
    if not cur:
        raise (NameError, "连接数据库失败")
    else:
        return cur

def ExecQuery(self, sql):
    cur = self.__GetConnect()
    cur.execute(sql)
    resList = cur.fetchall()
    col_names = [desc[0] for desc in cur.description]

    result = []
    for row in resList:
        objDict = {}
        # 把每一行的数据遍历出来放到Dict中
        for index, value in enumerate(row):
            index, col_names[index], value
            objDict[col_names[index]] = value
        result.append(objDict)

    # 查询完毕后必须关闭连接
    self.conn.close()
    return result

def ExecNonQuery(self, sql):
    cur = self.__GetConnect()
    cur.execute(sql)
    self.conn.commit()
    self.conn.close()

然后设置好url就ok了，这是在Django框架下，fask框架下链接数据库模块依然可以使用

python 链接sqlserver 写接口

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