今日内容
1.登录页面分析
2.登录页面
3.注册页面
4.Redis介绍与安装
5.Redis普通连接和连接池
6.Redis之字符串类型
1.登录页面分析
点击登录,弹出登录组件,盖住整个屏幕(定位)
点击登录组件中的X,关闭登录组件(子传父)
Login.vue
<template>
<div class="login">
<span style="padding: 50px" @click="closeLogin">X</span>
</div>
</template>
<script>
export default {
name: "Login",
methods:{
closeLogin(){
this.$emit('go_close')
}
}
}
</script>
<style scoped>
.login {
width: 100vw;
height: 100vh;
position: fixed;
top: 0;
left: 0;
z-index: 10;
background-color: rgba(0, 0, 0, 0.5);
}
</style>
Header.vue
<div class="right-part">
<div>
<span @click="goLogin">登录</span>
<span class="line">|</span>
<span>注册</span>
</div>
</div>
</div>
<Login v-if="login_show" @go_close="goClose"></Login>
goLogin() {
this.login_show = true
},
goClose() {
this.login_show = false
}
2.登录页面
Login.vue
<template>
<div class="login">
<div class="box">
<i class="el-icon-close" @click="close_login"></i>
<div class="content">
<div class="nav">
<span :class="{active: login_method === 'is_pwd'}"
@click="change_login_method('is_pwd')">密码登录</span>
<span :class="{active: login_method === 'is_sms'}"
@click="change_login_method('is_sms')">短信登录</span>
</div>
<el-form v-if="login_method === 'is_pwd'">
<el-input
placeholder="用户名/手机号/邮箱"
prefix-icon="el-icon-user"
v-model="username"
clearable>
</el-input>
<el-input
placeholder="密码"
prefix-icon="el-icon-key"
v-model="password"
clearable
show-password>
</el-input>
<el-button type="primary" @click="login">登录</el-button>
</el-form>
<el-form v-if="login_method === 'is_sms'">
<el-input
placeholder="手机号"
prefix-icon="el-icon-phone-outline"
v-model="mobile"
clearable
@blur="check_mobile">
</el-input>
<el-input
placeholder="验证码"
prefix-icon="el-icon-chat-line-round"
v-model="sms"
clearable>
<template slot="append">
<span class="sms" @click="send_sms">{{ sms_interval }}</span>
</template>
</el-input>
<el-button @click="mobile_login" type="primary">登录</el-button>
</el-form>
<div class="foot">
<span @click="go_register">立即注册</span>
</div>
</div>
</div>
</div>
</template>
<script>
export default {
name: "Login",
data() {
return {
username: '',
password: '',
mobile: '',
sms: '', // 验证码
login_method: 'is_pwd',
sms_interval: '获取验证码',
is_send: false,
}
},
methods: {
close_login() {
this.$emit('close')
},
go_register() {
this.$emit('go')
},
change_login_method(method) {
this.login_method = method;
},
check_mobile() {
if (!this.mobile) return;
// js正则:/正则语法/
// '字符串'.match(/正则语法/)
if (!this.mobile.match(/^1[3-9][0-9]{9}$/)) {
this.$message({
message: '手机号有误',
type: 'warning',
duration: 1000,
onClose: () => {
this.mobile = '';
}
});
return false;
}
// 手机号前端校验通过---》开始后端手机号是否存在的校验
// 后台校验手机号是否已存在
this.$axios({
url: this.$settings.BASE_URL + '/user/userinfo/check_mobile/?mobile=' + this.mobile,
method: 'get',
}).then(response => {
// code 如果是100,说明手机号存在,登录功能,才能发送短信
// == 只比较值是否相等
// === 即比较值,又比较类型
if (response.data.code == 100) {
this.$message({
message: '账号正常',
type: 'success',
duration: 1000,
});
// 发生验证码按钮才可以被点击
this.is_send = true;
} else {
this.$message({
message: '账号不存在',
type: 'warning',
duration: 1000,
onClose: () => {
this.mobile = '';
}
})
}
}).catch(() => {
});
},
send_sms() {
// this.is_send 如果是false,函数直接结束,就不能发送短信
if (!this.is_send) return;
// 按钮点一次立即禁用
this.is_send = false;
let sms_interval_time = 60;
this.sms_interval = "发送中...";
// 定时器: setInterval(fn, time, args)
// 往后台发送验证码
this.$axios({
url: this.$settings.BASE_URL + '/user/userinfo/send_sms/',
method: 'post',
data: {
mobile: this.mobile
}
}).then(response => {
if (response.data.code == 100) { // 发送成功
// 启动定时器
let timer = setInterval(() => {
if (sms_interval_time <= 1) {
clearInterval(timer);
this.sms_interval = "获取验证码";
this.is_send = true; // 重新回复点击发送功能的条件
} else {
sms_interval_time -= 1;
this.sms_interval = `${sms_interval_time}秒后再发`;
}
}, 1000);
} else { // 发送失败
this.sms_interval = "重新获取";
this.is_send = true;
this.$message({
message: '短信发送失败',
type: 'warning',
duration: 3000
});
}
}).catch(() => {
this.sms_interval = "频率过快";
this.is_send = true;
})
},
login() {
if (!(this.username && this.password)) {
this.$message({
message: '请填好账号密码',
type: 'warning',
duration: 1500
});
return false // 直接结束逻辑
}
this.$axios({
url: this.$settings.BASE_URL + '/user/userinfo/login_mul/',
method: 'post',
data: {
username: this.username,
password: this.password,
}
}).then(response => {
let username = response.data.username;
let token = response.data.token;
this.$cookies.set('username', username, '7d');
this.$cookies.set('token', token, '7d');
this.$emit('success', response.data.result);
}).catch(error => {
console.log(error.response.data)
})
},
mobile_login() {
if (!(this.mobile && this.sms)) {
this.$message({
message: '请填好手机与验证码',
type: 'warning',
duration: 1500
});
return false // 直接结束逻辑
}
this.$axios({
url: this.$settings.BASE_URL + '/user/userinfo/login_sms/',
method: 'post',
data: {
mobile: this.mobile,
code: this.sms,
}
}).then(response => {
let username = response.data.username
let token = response.data.token
// 放到cookie中,7天过期
this.$cookies.set('username', username, '7d')
this.$cookies.set('token', token, '7d')
// 关闭登录框
this.$emit('success')
}).catch(error => {
console.log(error.response.data)
})
}
}
}
</script>
<style scoped>
.login {
width: 100vw;
height: 100vh;
position: fixed;
top: 0;
left: 0;
z-index: 10;
background-color: rgba(0, 0, 0, 0.7);
}
.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>
3.注册页面
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 @click="register" type="primary">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.$emit('go')
},
check_mobile() {
if (!this.mobile) return;
// js正则:/正则语法/
// '字符串'.match(/正则语法/)
if (!this.mobile.match(/^1[3-9][0-9]{9}$/)) {
this.$message({
message: '手机号有误',
type: 'warning',
duration: 1000,
onClose: () => {
this.mobile = '';
}
});
return false;
}
// 后台校验手机号是否已存在
this.$axios({
url: this.$settings.BASE_URL + '/user/userinfo/check_mobile/',
method: 'get',
params: {
mobile: this.mobile
}
}).then(response => {
// 手机号不存在,才能发送短信,才能注册
if (response.data.code != 100) {
this.$message({
message: '欢迎注册我们的平台',
type: 'success',
duration: 1500,
});
// 发生验证码按钮才可以被点击
this.is_send = true;
} else {
this.$message({
message: '账号已存在,请直接登录',
type: 'warning',
duration: 1500,
})
}
}).catch(() => {
});
},
send_sms() {
// this.is_send必须允许发生验证码,才可以往下执行逻辑
if (!this.is_send) return;
// 按钮点一次立即禁用
this.is_send = false;
let sms_interval_time = 60;
this.sms_interval = "发送中...";
// 往后台发送验证码
this.$axios({
url: this.$settings.BASE_URL + '/user/userinfo/send_sms/',
method: 'post',
data: {
mobile: this.mobile
}
}).then(response => {
if (response.data.code==100) { // 发送成功
let timer = setInterval(() => {
if (sms_interval_time <= 1) {
clearInterval(timer);
this.sms_interval = "获取验证码";
this.is_send = true; // 重新回复点击发送功能的条件
} else {
sms_interval_time -= 1;
this.sms_interval = `${sms_interval_time}秒后再发`;
}
}, 1000);
} else { // 发送失败
this.sms_interval = "重新获取";
this.is_send = true;
this.$message({
message: '短信发送失败',
type: 'warning',
duration: 3000
});
}
}).catch(() => {
this.sms_interval = "频率过快";
this.is_send = true;
})
},
register() {
if (!(this.mobile && this.sms && this.password)) {
this.$message({
message: '请填好手机、密码与验证码',
type: 'warning',
duration: 1500
});
return false // 直接结束逻辑
}
this.$axios({
url: this.$settings.BASE_URL + '/user/register/',
method: 'post',
data: {
mobile: this.mobile,
code: this.sms,
password: this.password
}
}).then(response => {
this.$message({
message: '注册成功,3秒跳转登录页面',
type: 'success',
duration: 3000,
showClose: true,
onClose: () => {
// 去向成功页面
this.$emit('success')
}
});
}).catch(error => {
this.$message({
message: '注册失败,请重新注册',
type: 'warning',
duration: 1500,
showClose: true,
onClose: () => {
// 清空所有输入框
this.mobile = '';
this.password = '';
this.sms = '';
}
});
})
}
}
}
</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>
Header.vue
<template>
<div class="header">
<div class="slogan">
<p>老男孩IT教育 | 帮助有志向的年轻人通过努力学习获得体面的工作和生活</p>
</div>
<div class="nav">
<ul class="left-part">
<li class="logo">
<router-link to="/">
<img src="../assets/img/head-logo.svg" alt="">
</router-link>
</li>
<li class="ele">
<span @click="goPage('/free-course')" :class="{active: url_path === '/free-course'}">免费课</span>
</li>
<li class="ele">
<span @click="goPage('/actual-course')" :class="{active: url_path === '/actual-course'}">实战课</span>
</li>
<li class="ele">
<span @click="goPage('/light-course')" :class="{active: url_path === '/light-course'}">轻课</span>
</li>
</ul>
<div class="right-part">
<div v-if="!username">
<span @click="put_login">登录</span>
<span class="line">|</span>
<span @click="put_register">注册</span>
</div>
<div v-else>
<span>{{ username }}</span>
<span class="line">|</span>
<span>注销</span>
</div>
</div>
</div>
<Login v-if="is_login" @close="close_login" @go="put_register" @success="success_login"/>
<Register v-if="is_register" @close="close_register" @go="put_login" @success="success_register"/>
</div>
</template>
<script>
import Login from "@/components/Login";
import Register from "@/components/Register";
export default {
name: "Header",
data() {
return {
// 当前所在路径,去sessionStorage取的,如果取不到,就是 /
url_path: sessionStorage.url_path || '/',
is_login: false,
is_register: false,
username: this.$cookies.get('username'),
token: this.$cookies.get('token'),
}
},
methods: {
goPage(url_path) {
// 已经是当前路由就没有必要重新跳转
if (this.url_path !== url_path) {
this.$router.push(url_path);
}
sessionStorage.url_path = url_path;
},
put_login() {
this.is_login = true;
this.is_register = false;
},
put_register() {
this.is_login = false;
this.is_register = true;
},
close_login() {
this.is_login = false;
},
close_register() {
this.is_register = false;
},
success_login() {
this.is_login = false;
this.username = this.$cookies.get('username')
this.token = this.$cookies.get('token')
},
success_register() {
this.is_login = true
this.is_register = false
}
},
created() {
// 组件加载万成,就取出当前的路径,存到sessionStorage this.$route.path
sessionStorage.url_path = this.$route.path;
// 把url_path = 当前路径
this.url_path = this.$route.path;
},
components: {
Login,
Register
}
}
</script>
<style scoped>
.header {
background-color: white;
box-shadow: 0 0 5px 0 #aaa;
}
.header:after {
content: "";
display: block;
clear: both;
}
.slogan {
background-color: #eee;
height: 40px;
}
.slogan p {
width: 1200px;
margin: 0 auto;
color: #aaa;
font-size: 13px;
line-height: 40px;
}
.nav {
background-color: white;
user-select: none;
width: 1200px;
margin: 0 auto;
}
.nav ul {
padding: 15px 0;
float: left;
}
.nav ul:after {
clear: both;
content: '';
display: block;
}
.nav ul li {
float: left;
}
.logo {
margin-right: 20px;
}
.ele {
margin: 0 20px;
}
.ele span {
display: block;
font: 15px/36px '微软雅黑';
border-bottom: 2px solid transparent;
cursor: pointer;
}
.ele span:hover {
border-bottom-color: orange;
}
.ele span.active {
color: orange;
border-bottom-color: orange;
}
.right-part {
float: right;
}
.right-part .line {
margin: 0 10px;
}
.right-part span {
line-height: 68px;
cursor: pointer;
}
</style>
4.Redis介绍与安装
redis:缓存数据库【大部分时间做缓存,不仅仅可以做缓存】,非关系型数据库【区别于mysql关系型数据库】
nosql:非关系型的数据库
c语言写的 服务(监听端口),用来存储数据的,数据是存储在内存中,取值,放值速度非常快, 10w qps
面试题:redis为什么这么快
1.纯内存操作
2.网络模型使用的IO多路复用(epoll)(可以处理的请求数更多)
3 6.x之前,单进程,单线程架构,没有线程进程间切换,更少的消耗资源
key-value形式存储,没有表的概念
版本
最新: 7.x
公司里 5.x比较多
安装
mac 源码编译安装
linux 源码编译安装
win 微软自己,基于源码,改动,编译成安装包
最新5.x版本 https://github.com/tporadowski/redis/releases/
最新3.x版本 https://github.com/microsoftarchive/redis/releases
一路下一步,安装完释放出两个命令,会把redis自动加入到服务中
redis-server # mysqld 服务端的启动命令
redis-cli # mysql 客户端的启动命令
安装目录
redis-server
redis-cli
redis.windows-service.conf 配置文件
bind 127.0.0.1 # 服务,跑在的地址
port 6379 #监听的端口
启动redis
1.方式一:
在服务中,点击启动,后台启动
2.方式二:使用命令
redis-server 指定配置文件 如果不指定,会默认
客户端连接redis
1.方式一
redis-cli #默认连接本地的6379端口
2.方式二:
redis-cli -h 地址 -p 端口
3.使用图形化客户端操作
Redis Desktop Manager :开源的,原来免费,后来收费了 推荐用(mac,win,linux 都有)
Qt5 qt是个平台,专门用来做图形化界面的
可以使用c++写
可以使用python写 pyqt5 使用python写图形化界面 (少量公司再用)
resp-2022.1.0.0.exe 一路下一步,安装完启动起来
Redis Client 小众
图形化界面,连接redis 输入地址和端口,点击连接即可
redis默认有16个库,默认连进去就是第0个
5.Redis普通连接和连接池
python 相当于客户端,操作redis
安装模块:pip install redis
补充:django 中操作mysql,没有连接池的,一个请求就是一个mysql连接
可能会有问题,并发数过高,导致mysql连接数过高,影响mysql性能
使用django连接池:https://blog.51cto.com/liangdongchang/5140039
普通连接
安装redis 模块:pip install redis
1.导入模块的Redis类
from redis import Redis
2.实例化得到对象
conn = Redis(host='127.0.0.1', port=6379)
3.使用conn,操作redis
获取name的值
res = conn.get('name') # 返回数据是bytes格式
4.设置值
conn.set('age',19)
conn.close()
连接池连接
pool.py
import redis
POOL = redis.ConnectionPool(max_connections=10, host='127.0.0.1', port=6379) # 创建一个大小为10的redis连接池
测试代码
import redis
from threading import Thread
from pool import POOL
def task():
做成模块后,导入,无论导入多少次,导入的都那一个POOL对象
conn = redis.Redis(connection_pool=POOL) # 报错的原因是拿连接,池里不够了,没有等待,线程报错 设置等待,参数
print(conn.get('name'))
for i in range(1000):
t = Thread(target=task) # 每次都是一个新的连接,会导致 的连接数过多
t.start()
单例模式:设计模式 23 中设计模式
全局只有一个 这个对象
p1=Person() # p1 对象
p2=Person() # p2 新对象
模块导入方式
6.Redis之字符串类型
redis 是key-value形式存储
redis 数据放在内存中,如果断电,数据丢失---》需要有持久化的方案
5 种数据类型,value类型
字符串:用的最多,做缓存;做计数器
列表: 简单的消息队列
字典(hash):缓存
集合:去重
有序集合:排行榜
字符串类型使用
1.set(name, value, ex=None, px=None, nx=False, xx=False)
2.setnx(name, value)
3.setex(name, value, time)
4.psetex(name, time_ms, value)
5.mset(*args, **kwargs)
6.get(name)
7.mget(keys, *args)
8.getset(name, value)
9.getrange(key, start, end)
10.setrange(name, offset, value)
11.setbit(name, offset, value)
12.getbit(name, offset)
13.bitcount(key, start=None, end=None)
14.bitop(operation, dest, *keys)
15.strlen(name)
16.incr(self, name, amount=1)
# incrby
17.incrbyfloat(self, name, amount=1.0)
18.decr(self, name, amount=1)
19.append(key, value)
import redis
conn = redis.Redis()
1.set(name, value, ex=None, px=None, nx=False, xx=False)
ex,过期时间(秒)
px,过期时间(毫秒)
nx,如果设置为True,则只有name不存在时,当前set操作才执行, 值存在,就修改不了,执行没效果
xx,如果设置为True,则只有name存在时,当前set操作才执行,值存在才能修改,值不存在,不会设置新值
conn.set('hobby','篮球',ex=3)
conn.set('hobby','篮球',px=3)
conn.set('name','lqz',nx=True)
conn.set('name','lqz',nx=False)
conn.set('hobby','篮球',xx=True)
conn.set('hobby','篮球',xx=False)
redis---》实现分布式锁,底层基于nx实现的
2.setnx(name, value)
等同于:conn.set('name','lqz',nx=True)
conn.setnx('name', '刘亦菲')
3.setex(name, value, time)
等同于:conn.set('name','lqz',ex=3)
conn.setex('wife', 3, '刘亦菲')
4.psetex(name, time_ms, value)
conn.psetex('wife',3000,'刘亦菲')
5.mset(*args, **kwargs)
conn.mset({'wife': '刘亦菲', 'hobby': '篮球'})
6.get(name)
print(str(conn.get('wife'),encoding='utf-8'))
print(conn.get('wife'))
7.mget(keys, *args)
res=conn.mget('wife','hobby')
res=conn.mget(['wife','hobby'])
print(res)
8.getset(name, value)
res=str(conn.getset('wife','迪丽热巴'),encoding='utf-8')
res=conn.getset('wife','迪丽热巴')
print(res)
9.getrange(key, start, end)
res = str(conn.getrange('wife', 0, 2), encoding='utf-8') # 字节长度,不是字符长度 前闭后闭区间
print(res)
10.setrange(name, offset, value)
conn.setrange('wife',2,'bbb')
---- 比特位---操作
11 setbit(name, offset, value)
12 getbit(name, offset)
13 bitcount(key, start=None, end=None)
---- 比特位---操作
14.bitop(operation, dest, *keys) 获取多个值,并将值做位运算,将最后的结果保存至新的name对应的值
15.strlen(name)
res=conn.strlen('hobby') # 统计字节长度
print(res)
16 incr(self, name, amount=1)
自增,不会出并发安全问题,单线程架构,并发量高
conn.incr('age')
incrby
17.incrbyfloat(self, name, amount=1.0)
conn.incrbyfloat('age',1.2)
18.decr(self, name, amount=1)
conn.decrby('age')
conn.decrby('age',-1)
19.append(key, value)
conn.append('hobby','sb')
print(conn.strlen('hobby'))
conn.close()
你需要记住的
set
get
strlen 字节长度
incr
decr
标签:name,mobile,redis,sms,路飞,message,conn
From: https://www.cnblogs.com/yueq43/p/17189539.html