Python Django从安装到云平台攻略（二）前后端开发

Python Django从安装到云平台攻略（二）前后端开发 登录页面设计

在login.html中

{% csrf_token %} ##注意form，注意action就是当前页面，method是post还是get将触发后台的动作，整个form由submit来触发。 ##注意{% csrf_token %}。django默认启动 'django.middleware.csrf.CsrfViewMiddleware'中间件， 这个中间件就是来验证csrf_token的。如果没有加csrf_token，就会出错。 在view.py中 def login(request): loginfo = data_gen.login() userid = 0 userkey = 0 global qxpro global qxfunc if request.method == "POST": userid = request.POST.get("uid") userkey = request.POST.get("ukey") if (userid==loginfo.user01[0][0] and userkey==loginfo.user01[0][1]): qxpro = loginfo.user01[1] qxfunc = loginfo.user01[2] response = HttpResponseRedirect('/index/') response.set_cookie("username", 'kdkj') return response elif (userid==loginfo.user02[0][0] and userkey==loginfo.user02[0][1]): qxpro = loginfo.user02[1] qxfunc = loginfo.user02[2] response = HttpResponseRedirect('/index/') response.set_cookie("username", 'shzf') return response return render(request, 'login.html') 在data_gen中 class login(): user01 = (('kdkj','123456'),(1,1,1,0,0),(1,1,1,1,1,1,1,1,1)) user02 = (('shzf', 'shzf'), (1, 1, 0, 0, 0), (1, 1, 1, 0, 0, 0, 1, 0, 0)) ###ebpdacglpvestfdd def __str__(self): return self.ID ###在类login中建立用户账号和权限 # 用户权限配置 View.Py： def login(request): loginfo = basic.log() username = 0 userkey = 0

if request.method == "POST":
    username = request.POST.get("uname")
    userkey = request.POST.get("ukey")
    try:
        userdoc = loginfo.user(username)
        if (userkey==userdoc[0][2])and(userdoc[1]=='free'):
            user_id =loginfo.login_set(username)
            print("cookie is |", user_id)
            request.session['userid'] = user_id   ##very import, session to store user ID
            response = HttpResponseRedirect('../index/')
            return response
        else:
            return render(request, 'login.html')
    except:
        return render(request, 'login.html')

return render(request, 'login.html')

######################################################################################
def logout(request):
user_id = request.session.get(‘userid’) ##get user ID from session
loginfo = basic.log()
obj = loginfo.logout_set(user_id) ##set user state as “free” in “user_doc” table

return render(request, 'gate.html')

##################################################################################
def acount(request):
signinfo = basic.signon()
username = 0
userkey = 0
userkey2 = 0

if request.method == "POST":
    username = request.POST.get("uname")
    userkey = request.POST.get("ukey")
    userkey2 = request.POST.get("ukey2")
    try:
        if userkey == userkey2 and userkey != username and len(userkey) > 5:
            print(username)
            if signinfo.chk(username)==0:
                type_def = 'free'
                prj = "1001,1002"
                ath = "1,0,0,0,0,0,0,0"
                signinfo.sign(username, userkey, type_def, prj, ath)
                response = HttpResponseRedirect('../login/')
                return response
            else:
                slogan = "YOUR NAME HAD BEEN SIGNED SIR!!"
                return render(request, 'acount.html', {"slogan": slogan})
        else:
            slogan = "YOUR INFORMATION IS WRONG SIR!!"
            return render(request, 'acount.html', {"slogan": slogan})
    except:
        slogan = "Sorry Try Again SIR!!"
        return render(request, 'acount.html', {"slogan": slogan})

slogan = "WELCOME SIR!!"
return render(request, 'acount.html',{"slogan":slogan})

#####################################################################################
def index(request):
user_id = request.session.get(‘userid’) ##get user ID from session
print(“user ID”, user_id)
loginfo = basic.log()
user_auth = loginfo.log_chk(user_id) ##get more user information from “user_doc” table

Basic.py:
class log:
def user(self,uname):
obj = user_doc.objects.get(user_name=uname)
user_type = obj.type
user_proj = obj.proj.split(’,’)
user_proj = list(map(int,user_proj))
user_func = obj.auth.split(’,’)
user_func = list(map(int, user_func))

    user = [[obj.ID,obj.user_name,obj.user_key], user_type, user_proj, user_func]
    return user
def login_set(self,uname):
    obj = user_doc.objects.get(user_name=uname)
    user_id = obj.ID
    obj.type = 'busy' ## set user type state as “busy”
    obj.save()
    return user_id

def logout_set(self,user_id):
    obj = user_doc.objects.get(ID=user_id)
    obj.type = 'free' ## set user type state as “free”
    obj.save()
    return self

def log_chk(self,user_id):
    obj = user_doc.objects.get(ID=user_id)
    user_proj = obj.proj.split(',')
    user_proj = list(map(int, user_proj))
    user_func = obj.auth.split(',')
    user_func = list(map(int, user_func))
    user_auth = [user_proj, user_func]
    return user_auth

Models.py:
###########################################
class user_doc(models.Model):
ID = models.AutoField(primary_key=True)
user_name = models.CharField(max_length=30)
user_key = models.CharField(max_length=30)
type = models.CharField(max_length=20) ##‘free’-available, else-inusing
proj = models.CharField(max_length=1000) ##project authority: 101,102
auth = models.CharField(max_length=100) ##function authority:1,2,3,4,5

百度地图的引入

在index.html中

# Html页面跳转 {{n_pro}} 北京丽贝亚大厦