前端先看有无.eslintrc.js文件，添加 rules 和 ‘globals’

rules: {'no-console': process.env.NODE_ENV === 'production' ? 'warn' : 'off','no-debugger': process.env.NODE_ENV === 'production' ? 'warn' : 'off',},"globals":{"base64js": true,}

安装SM4

npm install sm4util

新建utils文件，引入使用

//引入和使用
import {SM4Util} from "sm4util";
const sm4 = new SM4Util();

<template><div><input v-model="mobilePhone" placeholder="请输入手机号"><input v-model="password" placeholder="请输入密码"></div>
</template>
<script>
import {SM4Util} from '@/utils/sm4';
export default {name: "Register",data(){return{username: '',mobilePhone: '',password: '',rePassword: ''}},mounted() {const sm4 = new SM4Util();const test = sm4.encryptData_CBC('123456')console.log('123456的加密结果：' + test)},methods:{register(){// sm4加密const sm4 = new SM4Util();this.$axios.post("/user/register", {mobilePhone: this.mobilePhone.trim(),password: sm4.encryptData_CBC(this.password.trim()),})}}
}
</script>

后端也需要安装相应的SM4，以此来解析