vue中使用goole人机验证recaptcha

前言：
由于公司需要使用goole人机验证功能。

前期准备

- 前往注册goole 账号
- 前往注册账号 (https://www.google.com/recaptcha/admin)
- 设置域名、获取秘钥

详细教程前往(https://www.mmuaa.com/post/a0...

由于是在vue项目中使用reCaptcha所以这里只说在vue中的用法

• 子组件: reCaptcha.vue

<template>
    <div ref="grecaptcha"></div>
</template>
<script>
export default {
  props: ["sitekey"], // 所要传的秘钥
  methods: {
    loaded() {
      window.grecaptcha.render(this.$refs.grecaptcha, {
        sitekey: this.sitekey,
        /**
        * res返回的是goole的验证情况，
        * 成功返回字符串
        * 失败不返回字符串
        * 所以根据字符串判断验证情况
        */
        callback: res => {
            res.length > 0 ? 
            // true  - 验证成功
            // false - 验证失败
            this.$emit("getValidateCode", true) : 
            this.$emit("getValidateCode", false)
        }
      });
    }
  },
  mounted() {
    window.ReCaptchaLoaded = this.loaded;
    var script = document.createElement("script");
    script.src =
      "https://recaptcha.net/recaptcha/api.js?onload=ReCaptchaLoaded&render=explicit";
    document.head.appendChild(script);
  }
};
</script>

• 父组件

<template>
  <el-form class="login-form"
           status-icon
           :rules="loginRules"
           ref="loginForm"
           :model="loginForm"
           label-width="0">
    <el-form-item prop="username">
      <el-input size="small"
                @keyup.enter.native="handleLogin"
                v-model="loginForm.username"
                auto-complete="off"
                placeholder="请输入用户名">
        <i slot="prefix"
           class="icon-yonghu"></i>
      </el-input>
    </el-form-item>
    <el-form-item prop="password">
      <el-input size="small"
                @keyup.enter.native="handleLogin"
                :type="passwordType"
                v-model="loginForm.password"
                auto-complete="off"
                placeholder="请输入密码">
        <i class="el-icon-view el-input__icon"
           slot="suffix"
           @click="showPassword"></i>
        <i slot="prefix"
           class="icon-mima"></i>
      </el-input>
    </el-form-item>
    <el-form-item prop='validateCode'>
      <el-row :span="24">
        <el-col :span="24">
        <!-- reCaptcha -->
          <reCaptcha :sitekey="key" @getValidateCode='getValidateCode' v-model="loginForm.validateCode"></reCaptcha>
        </el-col>
      </el-row>

    </el-form-item>
    <el-form-item>
      <el-button type="primary"
                 size="small"
                 @click.native.prevent="handleLogin"
                 class="login-submit">登录</el-button>
    </el-form-item>
  </el-form>
</template>

<script>
import reCaptcha from './reCaptcha'
import { randomLenNum } from "@/util/util";
import { validateReCode } from "@/util/validate"
import { mapGetters } from "vuex";

export default {
  name: "userlogin",
  components: {
      reCaptcha
    },
  data () {
    var checkCode = (rule, value, callback) => {
        if (value == false) {
          callback(new Error('请进行人机验证'));
        } else {
          callback();
        }
      };
    return {
      key: '6LfJF-QUAAAAAOl_ddwGTfQM5terhXJGOs0_WBiQ',
      loginForm: {
        username: "admin",
        password: "123456",
        redomStr: "",
        validateCode: false,
      },
      checked: false,
      loginRules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" }
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          { min: 6, message: "密码长度最少为6位", trigger: "blur" }
        ],
        validateCode: [
          { validator: checkCode, trigger: 'change' }
        ]
      },
      passwordType: "password"
    };
  },
  mounted(){
    console.log(this.$refs.recaptcha)
  },
  computed: {
    ...mapGetters(["tagWel"])
  },
  methods: {
    getValidateCode(value) {
      this.loginForm.validateCode = value
    },
    showPassword () {
      this.passwordType == ''
        ? (this.passwordType = 'password')
        : (this.passwordType = '')
    },
    handleLogin () {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.$store.dispatch("LoginByUsername", this.loginForm).then(() => {
            this.$router.push({ path: this.tagWel.value });
          }).catch(()=>{
            this.refreshCode()
          })

        }
      });
    }
  }
};
</script>