路飞项目六
Posted chenyoupan
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1 短信接口频率限制
# throttlings.py
from rest_framework.throttling import SimpleRateThrottle
class SMSThrotting(SimpleRateThrottle):
scope = ‘sms‘
def get_cache_key(self, request, view):
telephone = request.query_params.get(‘telephone‘)
#‘throttle_%(scope)s_%(ident)s‘%{}
return self.cache_format%{‘scope‘:self.scope,‘ident‘:telephone}
# 配置在视图类上
from .throttlings import SMSThrotting
class SendSmSView(ViewSet):
throttle_classes = [SMSThrotting,]
# 早setting中配置
REST_FRAMEWORK = {
‘DEFAULT_THROTTLE_RATES‘:{
‘sms‘:‘1/m‘ # key要跟类中的scop对应
}
}
2 验证码登陆接口
# views.py
@action(methods=[‘POST‘],detail=False)
def code_login(self,request,*args,**kwargs):
ser = serializer.CodeUserSerilaizer(data=request.data)
if ser.is_valid():
token = ser.context[‘token‘]
username = ser.context[‘user‘].username
return APIResponse(token=token, username=username)
else:
return APIResponse(code=0,msg=ser.errors)
# serializer
class CodeUserSerilaizer(serializers.ModelSerializer):
code=serializers.CharField()
class Meta:
model = models.User
fields = [‘telephone‘, ‘code‘]
def validate(self, attrs):
user=self._get_user(attrs)
# 用户存在，签发token
token = self._get_token(user)
self.context[‘token‘] = token
self.context[‘user‘] = user
return attrs
def _get_user(self, attrs):
from django.core.cache import cache
from django.conf import settings
import re
telephone = attrs.get(‘telephone‘)
code = attrs.get(‘code‘)
# 取出原来的code
cache_code=cache.get(settings.PHONE_CACHE_KEY%telephone)
if code ==cache_code:
# 验证码通过
if re.match(‘^1[3-9][0-9]{9}$‘, telephone):
user = models.User.objects.filter(telephone=telephone).first()
if user:
# 把使用过的验证码删除
cache.set(settings.PHONE_CACHE_KEY % telephone,‘‘)
return user
else:
raise ValidationError(‘用户不存在‘)
else:
raise ValidationError(‘手机号不合法‘)
else:
raise ValidationError(‘验证码错误‘)
def _get_token(self, user):
from rest_framework_jwt.serializers import jwt_payload_handler, jwt_encode_handler
payload = jwt_payload_handler(user) # 通过user对象获得payload
token = jwt_encode_handler(payload) # 通过payload获得token
return token
3 前台发送验证码
<template>
<div class="login">
<div class="box">
<i class="el-icon-close" @click="close_login"></i>
<div class="content">
<div class="nav">
<span :class="{active: login_method === ‘is_pwd‘}"
@click="change_login_method(‘is_pwd‘)">密码登录</span>
<span :class="{active: login_method === ‘is_sms‘}"
@click="change_login_method(‘is_sms‘)">短信登录</span>
</div>
<el-form v-if="login_method === ‘is_pwd‘">
<el-input
placeholder="用户名/手机号/邮箱"
prefix-icon="el-icon-user"
v-model="username"
clearable>
</el-input>
<el-input
placeholder="密码"
prefix-icon="el-icon-key"
v-model="password"
clearable
show-password>
</el-input>
<el-button type="primary" @click="login_password">登录</el-button>
</el-form>
<el-form v-if="login_method === ‘is_sms‘">
<el-input
placeholder="手机号"
prefix-icon="el-icon-phone-outline"
v-model="mobile"
clearable
@blur="check_mobile">
</el-input>
<el-input
placeholder="验证码"
prefix-icon="el-icon-chat-line-round"
v-model="sms"
clearable>
<template slot="append">
<span class="sms" @click="send_sms">{{ sms_interval }}</span>
</template>
</el-input>
<el-button type="primary" @click="code_login">登录</el-button>
</el-form>
<div class="foot">
<span @click="go_register">立即注册</span>
</div>
</div>
</div>
</div>
</template>
<script>
export default {
name: "Login",
data() {
return {
username: ‘‘,
password: ‘‘,
mobile: ‘‘,
sms: ‘‘,
login_method: ‘is_pwd‘,
sms_interval: ‘获取验证码‘,
is_send: false,
}
},
methods: {
close_login() {
this.$emit(‘close‘)
},
go_register() {
this.$emit(‘go‘)
},
change_login_method(method) {
this.login_method = method;
},
check_mobile() {
if (!this.mobile) return;
//字符串.match(/正则表达式/)
if (!this.mobile.match(/^1[3-9][0-9]{9}$/)) {
this.$message({
message: ‘手机号有误‘,
type: ‘warning‘,
duration: 1000,
onClose: () => {
this.mobile = ‘‘;
}
});
return false;
}
//发送axios请求
// this.$axios.get(this.$settings.base_url+‘/user/check_telephone/telephone=‘+this.mobile})
this.$axios.get(this.$settings.base_url + ‘/user/check_telephone/‘, {params: {telephone: this.mobile}}).then(response => {
if (response.data.code) {
//手机号存在，允许发送验证码
this.is_send = true;
} else {
this.$message({
message: ‘手机号不存在‘,
type: ‘warning‘,
duration: 1000,
onClose: () => {
this.mobile = ‘‘;
}
});
}
}).catch(error => {
console.log(error)
})
},
send_sms() {
if (!this.is_send) return;
this.is_send = false;
let sms_interval_time = 60;
this.sms_interval = "发送中...";
this.$axios.get(this.$settings.base_url + ‘/user/send/‘, {params: {‘telephone‘: this.mobile}})
.then(response => {
if (response.data.code) {
this.$message({
message: ‘发送验证码成功‘,
type: ‘success‘,
duration: 1000,
});
}
})
// setInterval(()=>{},100)
//定时器：每隔一秒种，把数字减一，当减到小于1，按钮又能点了，显示获取验证码
let timer = setInterval(() => {
if (sms_interval_time <= 1) {
clearInterval(timer); //如果小于等于1，把定时器清除
this.sms_interval = "获取验证码";
this.is_send = true; // 重新回复点击发送功能的条件
} else {
sms_interval_time -= 1;
this.sms_interval = `${sms_interval_time}秒后再发`;
}
}, 1000);
},
login_password() {
if (this.username && this.password) {
//发送请求
this.$axios.post(this.$settings.base_url + ‘/user/login/‘, {
username: this.username,
password: this.password
}).then(response => {
console.log(response.data)
//把用户信息保存到cookie中
// this.$cookies.set(‘key‘,‘value‘,‘过期时间,按s计‘)
this.$cookies.set(‘token‘, response.data.token, ‘7d‘)
this.$cookies.set(‘username‘, response.data.username, ‘7d‘)
//关闭登录窗口(子传父)
this.$emit(‘close‘)
//给父组件，Head传递一个事件，让它从cookie中取出token和username
this.$emit(‘loginsuccess‘)
}).catch(errors => {
})
} else {
this.$message({
message: ‘用户名或密码必须填哦‘,
type: ‘warning‘,
});
}
},
code_login() {
if (this.mobile && this.sms) {
//发送请求
this.$axios.post(this.$settings.base_url + ‘/user/code_login/‘, {
telephone: this.mobile,
code: this.sms
}).then(response => {
console.log(response.data)
//把用户信息保存到cookie中
// this.$cookies.set(‘key‘,‘value‘,‘过期时间,按s计‘)
this.$cookies.set(‘token‘, response.data.token, ‘7d‘)
this.$cookies.set(‘username‘, response.data.username, ‘7d‘)
//关闭登录窗口(子传父)
this.$emit(‘close‘)
//给父组件，Head传递一个事件，让它从cookie中取出token和username
this.$emit(‘loginsuccess‘)
}).catch(errors => {
})
} else {
this.$message({
message: ‘手机号或验证码必填‘,
type: ‘warning‘,
});
}
},
}
}
</script>
<style scoped>
.login {
width: 100vw;
height: 100vh;
position: fixed;
top: 0;
left: 0;
z-index: 10;
background-color: rgba(0, 0, 0, 0.3);
}
.box {
width: 400px;
height: 420px;
background-color: white;
border-radius: 10px;
position: relative;
top: calc(50vh - 210px);
left: calc(50vw - 200px);
}
.el-icon-close {
position: absolute;
font-weight: bold;
font-size: 20px;
top: 10px;
right: 10px;
cursor: pointer;
}
.el-icon-close:hover {
color: darkred;
}
.content {
position: absolute;
top: 40px;
width: 280px;
left: 60px;
}
.nav {
font-size: 20px;
height: 38px;
border-bottom: 2px solid darkgrey;
}
.nav > span {
margin: 0 20px 0 35px;
color: darkgrey;
user-select: none;
cursor: pointer;
padding-bottom: 10px;
border-bottom: 2px solid darkgrey;
}
.nav > span.active {
color: black;
border-bottom: 3px solid black;
padding-bottom: 9px;
}
.el-input, .el-button {
margin-top: 40px;
}
.el-button {
width: 100%;
font-size: 18px;
}
.foot > span {
float: right;
margin-top: 20px;
color: orange;
cursor: pointer;
}
.sms {
color: orange;
cursor: pointer;
display: inline-block;
width: 70px;
text-align: center;
user-select: none;
}
</style>
4 前台验证码登陆
#详细代码看第三条，前台发送验证码
5 后台注册接口
# urls.py
router.register(‘register‘, views.RegisterView, ‘register‘) # /user/register post请求就是新增
# views.py
class RegisterView(GenericViewSet,CreateModelMixin):
queryset = models.User.objects.all()
serializer_class = serializer.UserRegisterSerilaizer
def create(self, request, *args, **kwargs):
response=super().create(request, *args, **kwargs)
username=response.data.get(‘username‘)
return APIResponse(code=1,msg=‘注册成功‘,username=username)
# serializer.py
class UserRegisterSerilaizer(serializers.ModelSerializer):
code=serializers.CharField(max_length=4,min_length=4,write_only=True)
class Meta:
model = models.User
fields = [‘telephone‘, ‘code‘,‘password‘,‘username‘]
extra_kwargs = {
‘password‘: {‘max_length‘: 18,‘min_length‘:8},
‘username‘: {‘read_only‘:True}
}
def validate(self, attrs):
telephone = attrs.get(‘telephone‘)
code = attrs.get(‘code‘)
# 取出原来的code
cache_code = cache.get(settings.PHONE_CACHE_KEY % telephone)
if code == cache_code:
# 验证码通过
if re.match(‘^1[3-9][0-9]{9}$‘, telephone):
attrs[‘username‘]=telephone # 把用户的名字设成手机号
attrs.pop(‘code‘)
return attrs
else:
raise ValidationError(‘手机号不合法‘)
else:
raise ValidationError(‘验证码错误‘)
# 重写create方法
def create(self, validated_data):
user=models.User.objects.create_user(**validated_data)
return user
6 前台注册功能
# Register.vue
<template>
<div class="register">
<div class="box">
<i class="el-icon-close" @click="close_register"></i>
<div class="content">
<div class="nav">
<span class="active">新用户注册</span>
</div>
<el-form>
<el-input
placeholder="手机号"
prefix-icon="el-icon-phone-outline"
v-model="mobile"
clearable
@blur="check_mobile">
</el-input>
<el-input
placeholder="密码"
prefix-icon="el-icon-key"
v-model="password"
clearable
show-password>
</el-input>
<el-input
placeholder="验证码"
prefix-icon="el-icon-chat-line-round"
v-model="sms"
clearable>
<template slot="append">
<span class="sms" @click="send_sms">{{ sms_interval }}</span>
</template>
</el-input>
<el-button type="primary" @click="register">注册</el-button>
</el-form>
<div class="foot">
<span @click="go_login">立即登录</span>
</div>
</div>
</div>
</div>
</template>
<script>
export default {
name: "Register",
data() {
return {
mobile: ‘‘,
password: ‘‘,
sms: ‘‘,
sms_interval: ‘获取验证码‘,
is_send: false,
}
},
methods: {
close_register() {
this.$emit(‘close‘, false)
},
go_login() {
this.$emit(‘go‘)
},
check_mobile() {
if (!this.mobile) return;
//字符串.match(/正则表达式/)
if (!this.mobile.match(/^1[3-9][0-9]{9}$/)) {
this.$message({
message: ‘手机号有误‘,
type: ‘warning‘,
duration: 1000,
onClose: () => {
this.mobile = ‘‘;
}
});
return false;
}
this.$axios.get(this.$settings.base_url + ‘/user/check_telephone/‘, {params: {telephone: this.mobile}}).then(response => {
if (response.data.code) {
this.$message({
message: ‘您已经注册过了，快去登录把‘,
type: ‘warning‘,
duration: 1000,
onClose: () => {
this.go_login()
}
});
} else {
this.is_send = true;
this.$message({
message: ‘该用户没有注册过，欢迎注册我们的平台‘,
type: ‘success‘,
duration: 1000,
});
}
}).catch(error => {
console.log(error)
})
},
send_sms() {
if (!this.is_send) return;
this.is_send = false;
let sms_interval_time = 60;
this.sms_interval = "发送中...";
this.$axios.get(this.$settings.base_url + ‘/user/send/‘, {params: {‘telephone‘: this.mobile}})
.then(response => {
if (response.data.code) {
this.$message({
message: ‘发送验证码成功‘,
type: ‘success‘,
duration: 1000,
});
}
})
// setInterval(()=>{},100)
//定时器：每隔一秒种，把数字减一，当减到小于1，按钮又能点了，显示获取验证码
let timer = setInterval(() => {
if (sms_interval_time <= 1) {
clearInterval(timer); //如果小于等于1，把定时器清除
this.sms_interval = "获取验证码";
this.is_send = true; // 重新回复点击发送功能的条件
} else {
sms_interval_time -= 1;
this.sms_interval = `${sms_interval_time}秒后再发`;
}
}, 1000);
},
register() {
if (this.mobile && this.sms && this.password) {
this.$axios.post(this.$settings.base_url + ‘/user/register/‘, {
telephone: this.mobile,
code: this.sms,
password: this.password
}).then(response => {
if (response.data.code) {
//注册成功，来个提示，跳转到登录
this.$message({
message: ‘注册成功‘,
type: ‘success‘,
duration: 1000,
onClose: () => {
this.go_login()
}
});
} else {
this.$message({
message: ‘未知错误‘,
type: ‘error‘,
duration: 1000,
onClose: () => {
this.mobile = ‘‘
this.sms = ‘‘
this.password = ‘‘
}
});
}
})
} else {
this.$message({
message: ‘你有没填的信息‘,
type: ‘error‘,
duration: 1000,
});
}
},
}
}
</script>
<style scoped>
.register {
width: 100vw;
height: 100vh;
position: fixed;
top: 0;
left: 0;
z-index: 10;
background-color: rgba(0, 0, 0, 0.3);
}
.box {
width: 400px;
height: 480px;
background-color: white;
border-radius: 10px;
position: relative;
top: calc(50vh - 240px);
left: calc(50vw - 200px);
}
.el-icon-close {
position: absolute;
font-weight: bold;
font-size: 20px;
top: 10px;
right: 10px;
cursor: pointer;
}
.el-icon-close:hover {
color: darkred;
}
.content {
position: absolute;
top: 40px;
width: 280px;
left: 60px;
}
.nav {
font-size: 20px;
height: 38px;
border-bottom: 2px solid darkgrey;
}
.nav > span {
margin-left: 90px;
color: darkgrey;
user-select: none;
cursor: pointer;
padding-bottom: 10px;
border-bottom: 2px solid darkgrey;
}
.nav > span.active {
color: black;
border-bottom: 3px solid black;
padding-bottom: 9px;
}
.el-input, .el-button {
margin-top: 40px;
}
.el-button {
width: 100%;
font-size: 18px;
}
.foot > span {
float: right;
margin-top: 20px;
color: orange;
cursor: pointer;
}
.sms {
color: orange;
cursor: pointer;
display: inline-block;
width: 70px;
text-align: center;
user-select: none;
}
</style>
7 redis
#1 key-value的存储方式，value有很多数据类型：5大：string(字符串)、list(链表)、set(集合)、zset(sorted set --有序集合)和hash（哈希类型
#2 内存数据库
#3 与Memcached比较：
-1 Memcached只支持一种数据类型字符串
-2 Memcached不支持持久化（不支持存到硬盘上，只要一断电，数据就没了）
# 4 使用Redis有哪些好处？
(1) 速度快，因为数据存在内存中，类似于HashMap，HashMap的优势就是查找和操作的时间复杂度都是O(1)
(2) 支持丰富数据类型，支持string，list，set，sorted set，hash
(3) 支持事务，操作都是原子性，所谓的原子性就是对数据的更改要么全部执行，要么全部不执行
(4) 丰富的特性：可用于缓存，消息，按key设置过期时间，过期后将会自动删除
# 5 单线程，单进程，不存在并发访问的问题（新版本已经不是了）
-单线程为什么这么快
-数据在内存（最重要的）
-io多路复用技术
-因为没有进程，线程间的切换
# 6 redis适合的场景
1 排行榜
2 网站访问量，文章访问量
3 缓存数据库（用的最多，就是做缓存）
4 发布订阅
5 去重
6 分布式（blpop）
# 7 安装
-Redis-x64-3.2.100.msi 安装包
-redis-desktop-manager-0.9.3.817.exe 等同于navicate
# 8 使用
-服务端和客户端
-安装完，服务端自动启动：redis-server 配置文件.conf
-redis-cli ：客户端连接服务端(redis-cli -h 127.0.0.1 -p 6379)
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