day09
内容概要
- 登录页面分析
- 登录页面
- 注册页面
- Redis介绍与安装
- Redis普通连接和连接池
- Redis之字符串
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，关闭登录组件
雏形
页头组件中
<template>
<div class="header">
<div class="right-part">
<div>
<span @click="checkLoginShow">登录</span>
<span class="line">|</span>
<span>注册</span>
</div>
</div>
<Login v-if="loginShow" @close="checkLoginShow"></Login>
</div>
</template>
<script>
import Login from "@/components/Login";
export default {
name: "Header",
components: {
Login
},
data() {
return {
// 当前所在路径，去sessionStorage取的，如果取不到，就是 /
url_path: sessionStorage.url_path || '/',
loginShow: false
}
},
methods: {
checkLoginShow() {
this.loginShow = !this.loginShow
}
},
}
</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>
Login组件
<template>
<div class="login">
<h3 @click="MyClose">呵呵呵</h3>
</div>
</template>
<script>
export default {
name: "Login",
methods: {
MyClose() {
this.$emit('close')
}
}
}
</script>
<style scoped>
.login {
width: 100vw;
height: 100vh;
position: fixed;
top: 0;
left: 0;
z-index: 10;
background-color: rgba(0, 0, 0, 0.5);
}
</style>
就是一个子传父
页头组件点击登录模态框显示，
登录组件点击 呵呵呵调用父组件的方法，把true改为false
登录页面
Login组件
<template>
<div class="login">
<div class="box">
<i class="el-icon-close" @click="close_login"></i>
<div class="content">
<div class="nav">
<span :class="{active: login_method === 'is_pwd'}"
@click="change_login_method('is_pwd')">密码登录</span>
<span :class="{active: login_method === 'is_sms'}"
@click="change_login_method('is_sms')">短信登录</span>
</div>
<el-form v-if="login_method === 'is_pwd'">
<el-input
placeholder="用户名/手机号/邮箱"
prefix-icon="el-icon-user"
v-model="username"
clearable>
</el-input>
<el-input
placeholder="密码"
prefix-icon="el-icon-key"
v-model="password"
clearable
show-password>
</el-input>
<el-button type="primary" @click="mLogin">登录</el-button>
</el-form>
<el-form v-if="login_method === 'is_sms'">
<el-input
placeholder="手机号"
prefix-icon="el-icon-phone-outline"
v-model="mobile"
clearable
@blur="check_mobile">
</el-input>
<el-input
placeholder="验证码"
prefix-icon="el-icon-chat-line-round"
v-model="sms"
clearable>
<template slot="append">
<span class="sms" @click="send_sms">{{ sms_interval }}</span>
</template>
</el-input>
<el-button type="primary">登录</el-button>
</el-form>
<div class="foot">
<span @click="go_register">立即注册</span>
</div>
</div>
</div>
</div>
</template>
<script>
export default {
name: "Login",
data() {
return {
username: '',
password: '',
mobile: '',
sms: '',
login_method: 'is_pwd',
sms_interval: '获取验证码',
is_send: false,
}
},
methods: {
close_login() {
this.$emit('close')
},
go_register() {
this.$emit('go')
},
change_login_method(method) {
this.login_method = method;
},
check_mobile() {
if (!this.mobile) return;
if (!this.mobile.match(/^1[3-9][0-9]{9}$/)) {
this.$message({
message: '手机号有误',
type: 'warning',
duration: 1000,
onClose: () => {
this.mobile = '';
}
});
return false;
}
this.is_send = true;
},
send_sms() {
if (!this.is_send) return;
this.is_send = false;
let sms_interval_time = 60;
this.sms_interval = "发送中...";
let timer = setInterval(() => {
if (sms_interval_time <= 1) {
clearInterval(timer);
this.sms_interval = "获取验证码";
this.is_send = true; // 重新回复点击发送功能的条件
} else {
sms_interval_time -= 1;
this.sms_interval = `${sms_interval_time}秒后再发`;
}
}, 1000);
},
mLogin() {
this.$axios({
method: "post",
url: this.$settings.BASE_URL + '/user/userinfo/login/',
data: {
username: this.username,
password: this.password
}
}).then(res => {
if (res.data.code === 100) {
this.$cookies.set("username", res.data.data.username, "7d")
this.$cookies.set("token", res.data.data.token, "7d")
this.$message.success(res.data.msg)
this.$emit('success')
} else {
this.$message.error(res.data.msg)
}
})
}
}
}
</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>
Header 页头组件
<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 @click="logout">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";
export default {
name: "Header",
components: {
Login
},
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"),
}
},
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.$cookies.get('token')
},
success_register() {
this.is_login = true
this.is_register = false
},
logout() {
this.$cookies.remove("username")
this.$cookies.remove("token")
this.username = ''
this.token = ''
}
},
created() {
// 组件加载万成，就取出当前的路径，存到sessionStorage this.$route.path
sessionStorage.url_path = this.$route.path;
// 把url_path = 当前路径
this.url_path = this.$route.path;
},
}
</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>
手机号登录
<!--<template>-->
<!-- <div class="login">-->
<!-- <h3 @click="MyClose">呵呵呵</h3>-->
<!-- </div>-->
<!--</template>-->
<!--<script>-->
<!--export default {-->
<!-- name: "Login",-->
<!-- methods: {-->
<!-- MyClose() {-->
<!-- this.$emit('close')-->
<!-- }-->
<!-- }-->
<!--}-->
<!--</script>-->
<!--<style scoped>-->
<!--.login {-->
<!-- width: 100vw;-->
<!-- height: 100vh;-->
<!-- position: fixed;-->
<!-- top: 0;-->
<!-- left: 0;-->
<!-- z-index: 10;-->
<!-- background-color: rgba(0, 0, 0, 0.5);-->
<!--}-->
<!--</style>-->
<template>
<div class="login">
<div class="box">
<i class="el-icon-close" @click="close_login"></i>
<div class="content">
<div class="nav">
<span :class="{active: login_method === 'is_pwd'}"
@click="change_login_method('is_pwd')">密码登录</span>
<span :class="{active: login_method === 'is_sms'}"
@click="change_login_method('is_sms')">短信登录</span>
</div>
<el-form v-if="login_method === 'is_pwd'">
<el-input
placeholder="用户名/手机号/邮箱"
prefix-icon="el-icon-user"
v-model="username"
clearable>
</el-input>
<el-input
placeholder="密码"
prefix-icon="el-icon-key"
v-model="password"
clearable
show-password>
</el-input>
<el-button type="primary" @click="mLogin">登录</el-button>
</el-form>
<el-form v-if="login_method === 'is_sms'">
<el-input
placeholder="手机号"
prefix-icon="el-icon-phone-outline"
v-model="mobile"
clearable
@blur="check_mobile">
</el-input>
<el-input
placeholder="验证码"
prefix-icon="el-icon-chat-line-round"
v-model="sms"
clearable>
<template slot="append">
<span class="sms" @click="send_sms">{{ sms_interval }}</span>
</template>
</el-input>
<el-button type="primary" @click="modelLogin">登录</el-button>
</el-form>
<div class="foot">
<span @click="go_register">立即注册</span>
</div>
</div>
</div>
</div>
</template>
<script>
export default {
name: "Login",
data() {
return {
username: '',
password: '',
mobile: '',
sms: '',
login_method: 'is_pwd',
sms_interval: '获取验证码',
is_send: false,
}
},
methods: {
close_login() {
this.$emit('close')
},
go_register() {
this.$emit('go')
},
change_login_method(method) {
this.login_method = method;
},
check_mobile() {
if (!this.mobile) return;
if (!this.mobile.match(/^1[3-9][0-9]{9}$/)) {
this.$message({
message: '手机号有误',
type: 'warning',
duration: 1000,
onClose: () => {
this.mobile = '';
}
});
return false;
}
this.is_send = true;
},
send_sms() {
if (!this.is_send) return;
this.is_send = false;
let sms_interval_time = 60;
this.$axios({
method: 'post',
url: this.$settings.BASE_URL += '/user/userinfo/get_code/',
data: {
mobile: this.mobile
}
}).then(res => {
if (res.data.code === 100) {
this.sms_interval = "发送中...";
} else {
this.$message.error("发送失败")
}
})
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 = `${sms_interval_time}秒后再发`;
}
}, 1000);
},
modelLogin() {
this.$axios({
method: "post",
url: this.$settings.BASE_URL + '/user/userinfo/mobile_login/',
data: {
mobile: this.mobile,
code: this.sms
}
}).then(res => {
if (res.data.code === 100) {
this.$cookies.set("username", res.data.data.username, "7d")
this.$cookies.set("token", res.data.data.token, "7d")
this.$message.success(res.data.msg)
this.$emit('success')
} else {
this.$message.error(res.data.msg)
}
})
}
}
}
</script>
注册页面
Register
<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 => {
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...";
// 定时器: setInterval(fn, time, args)
// 往后台发送验证码
this.$axios({
url: this.$settings.BASE_URL + '/user/userinfo/get_code/',
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.$settings.BASE_URL + '/user/userinfo/register/',
method: 'post',
data: {
mobile: this.mobile,
code: this.sms,
password: this.password
}
}).then(response => {
if (response.data.code === 100) {
this.$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.$emit('success')
}
});
} else {
this.$message.error(response.data.msg)
}
}).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>
Redis介绍安装
redister: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：关系型数据库
-c语言写的 服务(监听端口),用来存储数据库的，数据库是存储在内存中，取值，放值速度非常快，10w qps 并发量
面试题：redis为什么这么快
- 纯内存操作
- 网络模型使用的IO多路复用(epoll)(可以处理的请求数更多)
- 6.x之前，单进程，单线程架构，没有线程进程之间切换，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
win 安装redis 下载安装包后
然后等完了
安装完成释放两个命令，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
命令启动服务和命令连接服务
# 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
图形化连接redis
-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
使用可视化软件
Redis普通连接跟连接池
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，并发量过高，导致mysql连接数过高，影响msyql性能
-使用django连接池：https://blog.51cto.com/liangdongchang/5140039
普通连接
# 安装redis
# 1.导入模块
from redis import Redis
# 2.实例化对象
conn = Redis(host='127.0.0.1', port=6379)
# 3.使用conn，操做redis
print(conn.set("name", "lqz"))
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()
Redis之Value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---》需要有持久化方案
5中数据类型，valued类型
- 字符串(string)：用的最多，做缓存，计数器
- 列表(list)：简单的消息队列
- 字典(hash)：缓存
- 集合(set)：去重
- 有序集合(zset)：排行榜
Redis之字符串类型
'''
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)
'''
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