vue登录 页面登陆两次问题 /?
1.启动服务后，跳转 [http://192.168.0.108:8080/]
2.然后 输入正确的用户名和密码
3.点击登录，304到登录页面
url变成[http://192.168.0.108:8080/?#]
多了一个 ?#
然后再次点击登录就能成功了
<template>
<div id="login">
<div class="container">
<form class="form1" action="#">
<h2>管理员登录</h2>
<div style="overflow: hidden;">
<input type="text" placeholder="UserName" class="input" v-model="UserName" />
<input type="password" placeholder="PassWord" class="input" v-model="PassWord" />
<input
type="text"
placeholder="验证"
class="input"
v-model="dtoUserCode"
style="width: 38%;float: left;"
/>
<div class="s-canvas">
<canvas
style="height: 40px;"
@click="btn2()"
id="s-canvas"
:width="contentWidth"
:height="contentHeight"
></canvas>
</div>
</div>
<span>欢迎来到后台管理系统</span>
<button v-loading.fullscreen.lock="fullscreenLoading" class="btn" @click="btn()">登录</button>
</form>
</div>
</div>
</template>
<script>
import axios from "axios";
export default {
props: {
identifyCode: {
type: String,
default: ""
},
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: 112
},
contentHeight: {
type: Number,
default: 31
}
},
created: function() {
this.btn2();
},
data() {
return {
UserName: "E00000",
PassWord: "123456",
dtoUserCode: "",
fullscreenLoading: false
};
},
methods: {
btn2() {
var identifyCode = "";
//设置长度，这里看需求，我这里设置了4
var codeLength = 4;
//设置随机字符
var random = new Array(0, 1, 2, 3, 4, 5, 6, 7, 8, 9);
//循环codeLength 我设置的4就是循环4次
for (var i = 0; i < codeLength; i++) {
//设置随机数范围,这设置为0 ~ 36
var index = Math.floor(Math.random() * 9);
//字符串拼接 将每次随机的字符 进行拼接
identifyCode += random[index];
}
//将拼接好的字符串赋值给展示的code
this.identifyCode = identifyCode;
},
// 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) {
let r = this.randomNum(min, max);
let g = this.randomNum(min, max);
let b = this.randomNum(min, max);
return "rgb(" + r + "," + g + "," + b + ")";
},
drawPic() {
let canvas = document.getElementById("s-canvas");
let 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";
let x = (i + 1) * (this.contentWidth / (this.identifyCode.length + 1));
let y = this.randomNum(this.fontSizeMax, this.contentHeight - 5);
var 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();
}
},
btn() {
var that = this;
// let param = {
// dtoUserName: this.UserName,
// password: this.PassWord
// };
if (this.UserName == "") {
this.$message.error("请输入正确的账号");
return false;
} else if (this.PassWord == "") {
this.$message.error("请输入正确的密码");
return false;
} else if (this.dtoUserCode == "") {
this.$message.error("请输入验证码");
} else if (this.dtoUserCode !== this.identifyCode) {
this.$message.error("验证码错误");
} else if (this.dtoUserCode == this.identifyCode) {
this.$message({
message: "登陆成功",
type: "success"
});
this.fullscreenLoading = true;
axios
.get(window.g.baseURL + "workOrder/login", {
params: {
userName: that.UserName, // E00000
passWord: that.PassWord // 123456
}
})
.then(res => {
setTimeout(() => {
this.fullscreenLoading = false;
}, 3000);
this.$router.push({ path: "/index" });
console.log(res);
})
.catch(error => {
console.log("失败");
});
}
}
},
watch: {
identifyCode() {
this.drawPic();
}
},
mounted() {
this.drawPic();
}
};
</script>
<style scoped>
#login {
align-items: center;
background: url("../../assets/login.jpg");
background-attachment: fixed;
background-position: center;
background-repeat: no-repeat;
background-size: cover;
display: grid;
height: 100vh;
place-items: center;
}
.container {
max-width: 400px;
background: #e9e9e9;
background: rgba(99, 99, 100, 0.4);
border-radius: 15px;
box-shadow: 0 0.9rem 1.7rem rgba(0, 0, 0, 0.25),
0 0.7rem 0.7rem rgba(0, 0, 0, 0.22);
margin: 0 18px;
}
.form1 {
padding: 2.75rem;
text-align: center;
}
h2 {
font-weight: 400;
margin-bottom: 1.25rem;
text-align: center;
color: #fff;
}
.input {
background-color: #fff;
border: none;
padding: 0.9rem 0.9rem;
margin: 0.5rem 0;
width: 100%;
border-radius: 6px;
box-sizing: border-box;
-webkit-box-sizing: border-box;
}
span {
color: #8b8b8b;
text-align: center;
display: block;
margin-top: 25px;
}
.btn {
background-image: linear-gradient(90deg, #0367a6 0%, #008997 74%);
border-radius: 20px;
border: 1px solid var(--blue);
cursor: pointer;
font-size: 0.8rem;
font-weight: bold;
letter-spacing: 0.1rem;
padding: 0.9rem 4rem;
text-transform: uppercase;
color: white;
transition: transform 80ms ease-in;
margin-top: 20px;
transition: 0.8s !important;
}
.btn:hover {
border-radius: 50px;
}
.s-canvas {
padding: 4px 0;
height: 38px;
margin: 0.5rem 0;
padding: 3px 0;
float: right;
}
#s-canvas {
border-radius: 10px;
margin-top: 0;
cursor: pointer;
}
.s-canvas canvas {
margin-top: 1px;
margin-left: 8px;
}
</style>
