废话不多说，直接上代码。。。。。。。。。。
login文件
<template>
<div class="sigin background" :style="{height:cHeight+'px'}">
<div class="wrapper">
<div class="text-img">
<img :src="title" alt="">
</div>
<div class="login">
<div class="input-wrap">
<span class="input-lable">用户名</span>
<span class="input-ped"><input type="text" v-model="loginForm.userName"
autocomplete="username"></span>
</div>
<div class="input-wrap">
<span class="input-lable">密 码</span>
<span class="input-ped"><input :type="flag !== true?'password':'text'" v-model="loginForm.password"
autocomplete="current-password"></span>
<img style="margin-right:0px;" :src="this.registration_data.src" @click="changeType()" />
</div>
<div class="login-code">
<div class="input-wrap">
<span class="input-lable">验证码</span>
<span class="input-ped"><input type="password" v-model="loginForm.code"
autocomplete="current-password"></span>
</div>
<div class="code" @click="refreshCode">
<!--使用验证码组件-->
<s-identify :identifyCode="identifyCode"></s-identify>
</div>
</div>
<div class="remember">
<input type="checkbox" v-model="checked" style="margin-right:5px;"><span>记住密码</span>
</div>
<button class="log-btn" @click="login">登录</button>
</div>
</div>
<router-view />
</div>
</template>
<script>
import { getUserLogin, getCountNoReadForApp } from '@/api';
import { mapMutations } from 'vuex';
import SIdentify from '@/components/canvas/sIdentify.vue'; //引用验证码组件
import title from '../../assets/title.png';
export default {
name: '',
data() {
return {
title,
flag: false,
checked: false, // 默认不记住密码
loginForm: {
userName: '',
password: '',
code: ''
},
registration_data: {
pwdType: 'password',
src: require('../../assets/closeeyes.png')
},
identifyCode: '',
identifyCodes: '1234567890abcdefghijklinopqrsduvwxyz', // 1234567890ABCDEFGHIJKLINOPQRSDUVWXYZ
cHeight: null,
};
},
filters: {},
mounted() {
// // 初始化验证码
this.identifyCode = '1234';
// this.makeCode(this.identifyCodes, 4)
},
created() {
this.cHeight = window.innerHeight;
// 在页面加载时从localStorage获取登录信息
const userName = localStorage.getItem('userName');
const password = localStorage.getItem('password');
//判断用户是否点击了记住密码
if (localStorage.getItem('checked') === 'true') {
this.loginForm.userName = userName;
this.loginForm.password = password;
this.checked = true;
}
},
components: { SIdentify }, //注册验证码组件
methods: {
...mapMutations(['changeLogin']),
// 点击刷新验证码
refreshCode() {
this.identifyCode = '';
this.makeCode(this.identifyCode, 4);
},
//生成随机的四位数验证码
makeCode(o, l) {
for (let i = 0; i < l; i++) {
this.identifyCode += this.identifyCodes[
this.randomNum(0, this.identifyCodes.length)
];
}
},
randomNum(min, max) {
return Math.floor(Math.random() * (max - min) + min);
},
// 是否显示输入的密码
changeType() {
this.flag = !this.flag;
if (this.flag == true) {
this.registration_data.src = require('../../assets/openeyes.png');
} else {
this.registration_data.src = require('../../assets/closeeyes.png');
}
},
// 登录
login() {
if (!this.loginForm.userName) {
this.ShowToast('账号不能为空');
return;
}
if (!this.loginForm.password) {
this.ShowToast('密码不能为空');
return;
}
if (this.loginForm.code !== this.identifyCode) {
this.ShowToast('请填写正确验证码');
this.refreshCode();
return;
}
this.getUserLoginFn(this.loginForm.userName, this.loginForm.password);
},
getUserLoginFn(userName, password) {
this.ShowLoading();
getUserLogin({
username: userName,
password
}).then((res) => {
this.HideLoading();
this.setUserInfo();
// 这里是因为要在created中判断，所以使用localstorage比较简单
localStorage.setItem('checked', this.checked);
this.$store.commit('setUserInfo', res.data.user);// 用户信息
this.$store.commit('setPermissions', res.data.permissions);// 权限
this.$store.commit('setExipreTime', res.data.exipreTime);// token过期时间
this.$store.commit('setReOutUserId', res.data.user.id);// 退出时用的id
this.changeLogin({ Authorization: res.data.token });// token
// 跳转登录
this.$router.push({
name: 'home'
});
}).catch((err) => {
this.HideLoading();
this.ShowToast('账号或密码错误,登录失败');
console.log(err);
});
},
// 是否记住密码
setUserInfo() {
// 判断用户是否勾选记住密码，如果勾选，向localStorage中储存登录信息，
// 如果没有勾选，储存的信息为空
if (this.checked === true) {
localStorage.setItem('userName', this.loginForm.userName);
localStorage.setItem('password', this.loginForm.password);
} else {
localStorage.setItem('userName', '');
localStorage.setItem('password', '');
}
},
},
};
</script>
因为字段太多，没有上css样式，大家自行书写css样式楼~~~
接下来放上验证码组件 sIdentify.vue，，，，，
<template>
<div class="s-canvas">
<canvas id="s-canvas" :width="contentWidth" :height="contentHeight"></canvas>
</div>
</template>
<script>
export default {
name: 'SIdentify',
props: {
identifyCode: {
type: String,
default: '1234'
},
fontSizeMin: {
type: Number,
default: 25
},
fontSizeMax: {
type: Number,
default: 30
},
backgroundColorMin: {
type: Number,
default: 255
},
backgroundColorMax: {
type: Number,
default: 255
},
colorMin: {
type: Number,
default: 0
},
colorMax: {
type: Number,
default: 160
},
lineColorMin: {
type: Number,
default: 100
},
lineColorMax: {
type: Number,
default: 255
},
dotColorMin: {
type: Number,
default: 0
},
dotColorMax: {
type: Number,
default: 255
},
contentWidth: {
type: Number,
default: 100
},
contentHeight: {
type: Number,
default: 30
}
},
methods: {
// 生成一个随机数
randomNum(min, max) {
return Math.floor(Math.random() * (max - min) + min);
},
// 生成一个随机的颜色
randomColor(min, max) {
const r = this.randomNum(min, max);
const g = this.randomNum(min, max);
const b = this.randomNum(min, max);
return `rgb(${r},${g},${b})`;
},
drawPic() {
const canvas = document.getElementById('s-canvas');
const ctx = canvas.getContext('2d');
ctx.textBaseline = 'bottom';
// 绘制背景
ctx.fillStyle = this.randomColor(this.backgroundColorMin, this.backgroundColorMax);
ctx.fillRect(0, 0, this.contentWidth, this.contentHeight);
// 绘制文字
for (let i = 0; i < this.identifyCode.length; i++) {
this.drawText(ctx, this.identifyCode[i], i);
}
this.drawLine(ctx);
this.drawDot(ctx);
},
drawText(ctx, txt, i) {
ctx.fillStyle = this.randomColor(this.colorMin, this.colorMax);
ctx.font = `${this.randomNum(this.fontSizeMin, this.fontSizeMax)}px SimHei`;
const x = (i + 1) * (this.contentWidth / (this.identifyCode.length + 1));
const y = this.randomNum(this.fontSizeMax, this.contentHeight - 5);
const deg = this.randomNum(-45, 45);
// 修改坐标原点和旋转角度
ctx.translate(x, y);
ctx.rotate(deg * Math.PI / 180);
ctx.fillText(txt, 0, 0);
// 恢复坐标原点和旋转角度
ctx.rotate(-deg * Math.PI / 180);
ctx.translate(-x, -y);
},
drawLine(ctx) {
// 绘制干扰线
for (let i = 0; i < 5; i++) {
ctx.strokeStyle = this.randomColor(this.lineColorMin, this.lineColorMax);
ctx.beginPath();
ctx.moveTo(this.randomNum(0, this.contentWidth), this.randomNum(0, this.contentHeight));
ctx.lineTo(this.randomNum(0, this.contentWidth), this.randomNum(0, this.contentHeight));
ctx.stroke();
}
},
drawDot(ctx) {
// 绘制干扰点
for (let i = 0; i < 80; i++) {
ctx.fillStyle = this.randomColor(0, 255);
ctx.beginPath();
ctx.arc(this.randomNum(0, this.contentWidth), this.randomNum(0, this.contentHeight), 1, 0, 2 * Math.PI);
ctx.fill();
}
}
},
watch: {
identifyCode() {
this.drawPic();
}
},
mounted() {
this.drawPic();
}
};
</script>
<style scoped>
.s-canvas {
height: 38px;
}
</style>
哦了~~~~~~~~~~有需要的自行查看吧！希望能够帮到正在工作中的你~加油！！
