Django实现注册/登录：方法1

以下是第一种方法

# 注册
def userreg(request):
    # 判断是否POST方式，如果是则进行下面的表单处理
    if request.method == 'POST':
        userDict = request.POST.dict()  # 吧用户输入的信息转成字典形式，并用userDict接收
        try:
            del userDict['csrfmiddlewaretoken']
            # 格式化时间
            myDate = datetime.now()
            formatedDate = myDate.strftime("%Y-%m-%d %H:%M:%S")
            # 第一步，保存新用户信息到数据库
            row = Users.objects.create(createtime=formatedDate, **userDict)  
            # Users.objects.create(email=email, pwd=pwd, nicheng=nicheng)  # 创建一个对象实例
            userDict['id'] = row.id
            # 第二步，如果验证通过，则保存用户信息到 session, 实现用户登陆
            # userDict = {'uaid': row.id, 'email': rouserDictw.email, 'pwd': userDict.pwd,'role':1}
            request.session['dict'] = userDict  # 设置session
            return render(request, 'home.html') # 注意这里，这里是返回home页面，在实现登录注册的另一个方法里使用的是重定向
        #验证是否重复
        except Exception as err:
            errStr = err.args[1]
            if 'emailuniq' in errStr:
                return HttpResponse('<script>alert("用户名重复");location.href="/";</script>')
            elif 'nichenguniq' in errStr:
                return HttpResponse('<script>alert("昵称重复");location.href="/";</script>')
    else:
        return render(request, 'home.html')


# 登录
def userlogin(request):
    emailVal = request.POST.get('email')
    pwd = request.POST.get('pwd')

        #方法1，直接查询数据方式   这里采用方法2
        #cursor = connection.cursor()
        # userSql = "SELECT * FROM users WHERE `email`=%s AND pwd=%s"
        # cursor.execute(userSql, [emailVal, pwd])
        # row = cursor.fetchone()
        
        #方法2，model对象查询
        row = Users.objects.filter(email=emailVal, pwd=pwd).first()
        if row == None:  # 如果不匹配
            return HttpResponse('<script>alert("用户名或密码出错");location.href="/";</script>')
        else:
            # 第二步，如果验证通过，则保存用户信息到 session, 用户登陆
                    loginbean = {}
                    loginbean['id'] = row.id
                    loginbean['nicheng'] = row.nicheng
                    loginbean['role'] = row.role
                    request.session['loginbean'] = loginbean  # 设置session
            return render(request, 'home.html')
    else:
        return HttpResponse('<script>alert("用户名已过期请重新登录");location.href="/";</script>')
        return render(request, 'home.html')