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index.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>滑块验证DEMO</title>
<style type="text/css">
html, body {
padding: 0;
margin: 0;
background: #2d3a4b;
}
.login{
width: 100%;
height: 100vh;
display: flex;
align-items: center;
flex-direction: row;
justify-content: center;
}
.login-mask {
width: 350px;
height: 300px;
background: rgba(0, 0, 0, 0.3);
border-radius: 8px;
margin: 0 auto;
display: flex;
align-items: center;
flex-direction: row;
justify-content: center;
color: white;
}
.login-mask div {
text-align: center;
}
.login-mask button {
border: none;
width: 120px;
height: 31px;
border-radius: 31px;
background: #109eff;
color: white;
cursor: pointer;
}
.login-mask button:hover {
background: #409eff;
}
.remark{
position: absolute;
top: 10vh;
width: 100%;
color: white;
font-size: 16px;
}
.remark div {
width: 330px;
border-radius: 4px;
margin-left: calc(50% - 175px);
background: rgba(0, 0, 0, .3);
padding: 10px;
}
</style>
</head>
<body>
<div class="remark">
<div>
滑块验证，将滑块滑到指定位置即可验证成功
</div>
</div>
<div class="login">
<div class="login-mask">
<div>
<h1>滑块验证DEMO</h1>
<button type="button" onclick="captcha()">滑 块 验 证</button>
</div>
</div>
</div>
</body>
</html>
<script type="text/javascript" src="./slider/slider-min.js"></script>
<script type="text/javascript">
// 开始验证
function captcha(){
// 根据 poster 获取验证参数
// 以下注释为请求接口返回数据，可自行替换自己的请求方法是
Slider = new langSlider({
title: '滑块安全验证',
start: async function(Slider) {
// 请求滑块参数
// const res = await getSlider()
// Slider.sliderStart({
// sliderBg: res.img,
// sliderKey: res.key,
// sliderY: res.y,
// })
setTimeout(function(){
Slider.sliderStart({
sliderBg: './slider/img/slider.png',
sliderKey: '1212',
sliderY: 46
})
}, 1000);
},
check: async function(sliderKey, sliderX, Slider) {
// await request({
// type:'post',
// url: 'http://localhost:8990/check',
// data: {key:sliderKey, x:sliderX},
// success: async function(res){
// if (res.code === 200) {
// Slider.sliderSuccess()
// } else {
// // 错误调用该方法
// // 模拟调用获取验证参数接口
// const res = await getSlider()
// Slider.sliderError({
// sliderBg: res.img,
// sliderKey: res.key,
// sliderY: res.y,
// })
// }
// },
// error: function(err) {
// console.log(err)
// }
// })
// 模拟调用验证接口
const check = () => {
const leeway = 5 // 误差值
const value = 208 // 正确值
if(value >= (sliderX - leeway) && value <= (sliderX + leeway)){
// 成功调用该方法
Slider.sliderSuccess()
} else {
// 错误调用该方法
// 模拟调用获取验证参数接口
setTimeout(function(){
Slider.sliderError({
sliderBg: './slider/img/slider.png',
sliderKey: '1212',
sliderY: 46
})
}, 1000);
}
}
setTimeout(function(){
check()
}, 1000)
},
refresh: async function(Slider){
// const res = await getSlider()
// Slider.sliderRefresh({
// sliderBg: res.img,
// sliderKey: res.key,
// sliderY: res.y,
// })
setTimeout(function(){
Slider.sliderRefresh({
sliderBg: './slider/img/slider.png',
sliderKey: '1212',
sliderY: 46
})
}, 1000);
},
})
}
// 获取滑块参数方法
async function getSlider() {
var response
await request({
type:'get',
url: 'http://localhost:8990/poster',
success: async function(res){
if(res.code == 200){
response = res.data;
}
},
error: function(err) {
console.log(err)
}
})
return response
}
// 封装一个简单请求接口
function request(obj) {
return new Promise(function (resolve, reject) {
var xhr = new XMLHttpRequest();
switch(obj.type) {
case 'get':
xhr.open('GET', obj.url, true);
xhr.onload = function() {
resolve(obj.success(JSON.parse(this.responseText)))
};
xhr.onError= function () {
reject(obj.error({
status: this.status,
statusText: xhr.statusText
}));
};
break;
case 'post':
xhr.open('POST', obj.url, true);
xhr.setRequestHeader('Content-Type', 'application/json');
xhr.onreadystatechange = function() {
if (this.readyState === XMLHttpRequest.DONE && this.status === 200) {
resolve(obj.success(JSON.parse(this.responseText)))
}
};
break;
}
xhr.send(JSON.stringify(obj.data));
});
}
</script>