vue + typescript + 极验登录验证的实现方法
此功能基于vue（v2.6.8） + typescript（v3.3.3333）, 引入极验（geetest v3+）（官方api），使用其product: 'bind'模式， 页面挂载后初始化ininGeetest，点击登录按钮后先做表单验证，通过后弹出滑块框，拖动验证成功，执行登录方法。
本项目为前后端分离，所以后端部署部分，请自行参考文档操作
后台接口：
开始：/public/js目录添加 jquery-1.12.3.min.js文件 和 gt.js（下载）在/public/index.html中引入以上添加的两个文件login.vue使用注意事项：要注意在gt.js中，initGeetest已被挂载到window对象
页面可能报错： Uncaught SyntaxError: Unexpected token <
将报错对象添加到与public同级的static目录下（没有则新建），修改引入路径即可。
源码：
<script lang="ts">
import { isValidUsername } from '@/utils/validate';
import { Component, Vue, Watch } from 'vue-property-decorator';
import { Route } from 'vue-router';
import { ElForm } from 'element-ui/types/form';
import { Loading } from 'element-ui';
import { Action } from 'vuex-class';
import AuthServices from '@/services/user/auth.ts';
import ThirdpartyServices from '@/services/thirdparty/index.ts';
const validateUsername = (rule: any, value: string, callback: any) => {
if (! value) {
callback(new Error('用户名不能为空'));
// } else if (!isValidUsername(value)) {
// callback(new Error('请输入正确的用户名'));
} else {
callback();
}
};
const validatePass = (rule: any, value: string, callback: any) => {
if (! value) {
callback(new Error('密码不能为空'));
// } else if (value.length < 5) {
// callback(new Error('密码不能小于5位'));
} else {
callback();
}
};
@Component({
name: 'login',
})
export default class Login extends Vue {
@Action('auth/login') private login_action!: CCS.LoginAction;
private loginForm = { username: '', password: '' };
private loginRules = {
username: [{trigger: 'blur', validator: validateUsername }],
password: [{trigger: 'blur', validator: validatePass }],
};
private loading = false;
private redirect: string | undefined = undefined;
private captchaEntity: any;
// private loadingInstance: any;
@Watch('$route', { immediate: true }) private OnRouteChange(route: Route) {
this.redirect = route.query && route.query.redirect as string;
}
// private created() {
// this.loadingInstance = Loading.service({
// customClass: 'login_loading',
// text: '正在初始化，请稍后',
// fullscreen: true,
// lock: true,
// });
// }
/** ==================== 验证 START ========================= */
/**
* 页面挂载后，后台获取初始化initGeetest所需参数值
*/
private async mounted() {
ThirdpartyServices.geetest_init().then((result) => {
// this.loadingInstance.close();
if (result.status) {
this.initGeetest(result.data);
} else {
this.$message({ type: 'error', message: result.message });
}
});
}
/**
* initGeetest 初始化
*/
private initGeetest(param: CCS.GeettestInitType) {
if ( ! (window as any) || ! (window as any).initGeetest ) {
return false;
}
(window as any).initGeetest({
gt: param.gt,
challenge: param.challenge,
offline: ! param.success,
new_captcha: param.newcaptcha,
timeout: '5000',
product: 'bind',
width: '300px',
https: true,
}, this.captchaObj_callback);
}
/**
* 初始化后的回调函数
*/
private async captchaObj_callback(captchaObj: any) {
this.captchaEntity = captchaObj; // promise对象
captchaObj
.onReady(() => { // 验证码就位
})
.onSuccess(() => {
const rst = captchaObj.getValidate();
if (!rst) {
this.$message({ type: 'warning', message: '请完成验证'});
}
// 调用后台check this.captchaObj
this.verify_check(rst);
})
.onError((err: Error) => {
console.log(err);
});
}
/**
* 后台验证初始化结果
*/
private async verify_check(validateResult: any) {
ThirdpartyServices.geetest_checked(validateResult.geetest_challenge, validateResult.geetest_validate, validateResult.geetest_seccode ).then((result) => {
if (result.status && result.data.result) {
// 验证通过，发送登录请求
this.handleLogin(result.data.token);
} else {
this.$message({ type: 'error', message: '验证失败'});
return false;
}
});
}
/** ==================== 验证 END ========================= */
/**
* 点击登录按钮，弹出验证框
*/
private login_btn_click() {
(this.$refs.refform as ElForm).validate((valid) => {
if (valid) {
this.captchaEntity.verify(); // 显示验证码
}
});
}
/**
* 验证成功，发送登录请求
*/
private async handleLogin(token: string) {
this.loading = true;
const { status, message} = await this.login_action({username: this.loginForm.username.trim(), password: this.loginForm.password, token});
this.loading = false;
if (status) {
this.$message({type: 'success', message: '登录成功'});
this.$router.push({ path: this.redirect || '/' });
} else {
this.$message({type: 'error', message});
}
}
}
</script>
<template>
<div class="login-container">
<div class="login_form_wraper">
<div class="logo_show">
<img :src="require('@/assets/images/logo_w328.png')">
</div>
<img class="form_bg" :src="require('@/assets/images/login_form.png')">
<el-form ref="refform" class="login-form" auto-complete="on" label-position="left"
:model="loginForm" :rules="loginRules">
<el-form-item prop="username">
<el-input v-model="loginForm.username" name="username" type="text" auto-complete="on" placeholder="用户名"/>
<i class="iconfont icon-zhanghaodenglu icon_prefix"></i>
</el-form-item>
<el-form-item prop="password">
<el-input v-model="loginForm.password" name="password" type="password" auto-complete="on" placeholder="密码"
@keyup.enter.native="handleLogin" />
<i class="iconfont icon-mima icon_prefix"></i>
</el-form-item>
<el-form-item class="login_btn">
<el-button v-if="!loading" @click.native.prevent="login_btn_click">登录</el-button>
<el-button :loading="loading" v-else @click.native.prevent="handleLogin">登录中</el-button>
</el-form-item>
</el-form>
</div>
</div>
</template>
<style lang="stylus" scoped>
@import '~@/assets/styles/var.styl';
@import '~@/assets/styles/pages/login.styl';
.login-container
pass
</style>
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