【一】分析

• 登录，注册，都写成组件----》在任意页面中，都能点击显示登录模态框

• 写好的组件，应该放在那个组件中----》不是页面组件(小组件)

• 点击登录按钮，把Login.vue 通过定位，占满全屏，透明度设为 0.5 ,纯黑色悲剧，覆盖在组件上

• 在Login.vue点关闭，要把Login.vue隐藏起来，父子通信之子传父，自定义事件

【二】登陆模态框引入

【1】父组件 header

<template>
  <div class="header">
    <div class="slogan">
      <p>老男孩IT教育 | 帮助有志向的年轻人通过努力学习获得体面的工作和生活</p>
    </div>
    <div class="nav">
      <ul class="left-part">
        <li class="logo">
          <router-link to="/">
            <img src="../assets/img/head-logo.svg" alt="">
          </router-link>
        </li>
        <li class="ele">
          <span @click="goPage('/free-course')" :class="{active: url_path === '/free-course'}">免费课</span>
        </li>
        <li class="ele">
          <span @click="goPage('/actual-course')" :class="{active: url_path === '/actual-course'}">实战课</span>
        </li>
        <li class="ele">
          <span @click="goPage('/light-course')" :class="{active: url_path === '/light-course'}">轻课</span>
        </li>
      </ul>

      <div class="right-part">
        <div>
          <span @click="goLogin">登录</span>
          <span class="line">|</span>
          <span>注册</span>
        </div>
      </div>
      <Login v-if="login_show" @close_login="close_login"></Login>

    </div>
  </div>

</template>

<script>
import Login from "@/components/Login.vue";

export default {
  name: "Header",
  data() {
    return {
      url_path: sessionStorage.url_path || '/',
      login_show: false,
    }
  },
  components: {
    Login,
  },
  methods: {
    goPage(url_path) {
      // 已经是当前路由就没有必要重新跳转
      if (this.url_path !== url_path) {
        this.$router.push(url_path);
      }
      sessionStorage.url_path = url_path;
    },
    goLogin() {
      this.login_show = true;
    },
    close_login() {
      this.login_show = false;
    },
  },
  created() {
    sessionStorage.url_path = this.$route.path;
    this.url_path = this.$route.path;
  }
}
</script>

<style scoped>
.header {
  background-color: white;
  box-shadow: 0 0 5px 0 #aaa;
}

.header:after {
  content: "";
  display: block;
  clear: both;
}

.slogan {
  background-color: #eee;
  height: 40px;
}

.slogan p {
  width: 1200px;
  margin: 0 auto;
  color: #aaa;
  font-size: 13px;
  line-height: 40px;
}

.nav {
  background-color: white;
  user-select: none;
  width: 1200px;
  margin: 0 auto;

}

.nav ul {
  padding: 15px 0;
  float: left;
}

.nav ul:after {
  clear: both;
  content: '';
  display: block;
}

.nav ul li {
  float: left;
}

.logo {
  margin-right: 20px;
}

.ele {
  margin: 0 20px;
}

.ele span {
  display: block;
  font: 15px/36px '微软雅黑';
  border-bottom: 2px solid transparent;
  cursor: pointer;
}

.ele span:hover {
  border-bottom-color: orange;
}

.ele span.active {
  color: orange;
  border-bottom-color: orange;
}

.right-part {
  float: right;
}

.right-part .line {
  margin: 0 10px;
}

.right-part span {
  line-height: 68px;
  cursor: pointer;
}
</style>

【2】子组件 Login

<script setup>

</script>

<template>
  <div class="login">
    <span @click="close">X</span>
  </div>
</template>
<script>
export default {
  name: "Login",
  methods: {
    close() {
      this.$emit('close_login')
    }
  }

}
</script>
<style scoped>
.login {
  width: 100vw;
  height: 100vh;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 10;
  background-color: rgba(0, 0, 0, 0.5);
}
</style>

【3】分析

• 点击登录按钮，把Login.vue 通过定位，占满全屏，透明度设为 0.5 ,纯黑色背景，覆盖在组件上
• 在Login.vue点关闭，要把Login.vue隐藏起来，父子通信之子传父，自定义事件

【三】登录页面

• luffy\lufycity_web\src\components\Login.vue

<template>
  <div class="login">
    <div class="box">
      <i class="el-icon-close" @click="close_login"></i>
      <div class="content">
        <div class="nav">
         <span :class="{active: login_method === 'is_pwd'}" @click="change_login_method('is_pwd')">密码登录</span>
          <span :class="{active: login_method === 'is_sms'}" @click="change_login_method('is_sms')">短信登录</span>
        </div>
        <el-form v-if="login_method === 'is_pwd'">
          <el-input
              placeholder="用户名/手机号/邮箱"
              prefix-icon="el-icon-user"
              v-model="username"
              clearable>
          </el-input>
          <el-input
              placeholder="密码"
              prefix-icon="el-icon-key"
              v-model="password"
              clearable
              show-password>
          </el-input>
          <el-button type="primary">登录</el-button>
        </el-form>
        <el-form v-if="login_method === 'is_sms'">
          <el-input
              placeholder="手机号"
              prefix-icon="el-icon-phone-outline"
              v-model="mobile"
              clearable
              @blur="check_mobile">
          </el-input>
          <el-input
              placeholder="验证码"
              prefix-icon="el-icon-chat-line-round"
              v-model="sms"
              clearable>
            <template slot="append">
              <span class="sms" @click="send_sms">{{ sms_interval }}</span>
            </template>
          </el-input>
          <el-button type="primary">登录</el-button>
        </el-form>
        <div class="foot">
          <span @click="go_register">立即注册</span>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
export default {
  name: "Login",
  data() {
    return {
      username: '',
      password: '',
      mobile: '',
      sms: '',
      login_method: 'is_pwd',
      sms_interval: '获取验证码',
      is_send: false,
    }
  },
  methods: {
    close_login() {
      this.$emit('close')
    },
    go_register() {
      this.$emit('go')
    },
    change_login_method(method) {
      this.login_method = method;
    },
    check_mobile() {
      if (!this.mobile) return;
      if (!this.mobile.match(/^1[3-9][0-9]{9}$/)) {
        this.$message({
          message: '手机号有误',
          type: 'warning',
          duration: 1000,
          onClose: () => {
            this.mobile = '';
          }
        });
        return false;
      }
      this.is_send = true;
    },
    send_sms() {

      if (!this.is_send) return;
      this.is_send = false;
      let sms_interval_time = 60;
      this.sms_interval = "发送中...";
      let timer = setInterval(() => {
        if (sms_interval_time <= 1) {
          clearInterval(timer);
          this.sms_interval = "获取验证码";
          this.is_send = true; // 重新回复点击发送功能的条件
        } else {
          sms_interval_time -= 1;
          this.sms_interval = `${sms_interval_time}秒后再发`;
        }
      }, 1000);
    }
  }
}
</script>

<style scoped>
.login {
  width: 100vw;
  height: 100vh;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 10;
  background-color: rgba(0, 0, 0, 0.5);
}

.box {
  width: 400px;
  height: 420px;
  background-color: white;
  border-radius: 10px;
  position: relative;
  top: calc(50vh - 210px);
  left: calc(50vw - 200px);
}

.el-icon-close {
  position: absolute;
  font-weight: bold;
  font-size: 20px;
  top: 10px;
  right: 10px;
  cursor: pointer;
}

.el-icon-close:hover {
  color: darkred;
}

.content {
  position: absolute;
  top: 40px;
  width: 280px;
  left: 60px;
}

.nav {
  font-size: 20px;
  height: 38px;
  border-bottom: 2px solid darkgrey;
}

.nav > span {
  margin: 0 20px 0 35px;
  color: darkgrey;
  user-select: none;
  cursor: pointer;
  padding-bottom: 10px;
  border-bottom: 2px solid darkgrey;
}

.nav > span.active {
  color: black;
  border-bottom: 3px solid black;
  padding-bottom: 9px;
}

.el-input, .el-button {
  margin-top: 40px;
}

.el-button {
  width: 100%;
  font-size: 18px;
}

.foot > span {
  float: right;
  margin-top: 20px;
  color: orange;
  cursor: pointer;
}

.sms {
  color: orange;
  cursor: pointer;
  display: inline-block;
  width: 70px;
  text-align: center;
  user-select: none;
}
</style>

【四】注册界面

• luffy\lufycity_web\src\components\Register.vue

<template>
    <div class="register">
        <div class="box">
            <i class="el-icon-close" @click="close_register"></i>
            <div class="content">
                <div class="nav">
                    <span class="active">新用户注册</span>
                </div>
                <el-form>
                    <el-input
                            placeholder="手机号"
                            prefix-icon="el-icon-phone-outline"
                            v-model="mobile"
                            clearable
                            @blur="check_mobile">
                    </el-input>
                    <el-input
                            placeholder="密码"
                            prefix-icon="el-icon-key"
                            v-model="password"
                            clearable
                            show-password>
                    </el-input>
                    <el-input
                            placeholder="验证码"
                            prefix-icon="el-icon-chat-line-round"
                            v-model="sms"
                            clearable>
                        <template slot="append">
                            <span class="sms" @click="send_sms">{{ sms_interval }}</span>
                        </template>
                    </el-input>
                    <el-button type="primary">注册</el-button>
                </el-form>
                <div class="foot">
                    <span @click="go_login">立即登录</span>
                </div>
            </div>
        </div>
    </div>
</template>

<script>
    export default {
        name: "Register",
        data() {
            return {
                mobile: '',
                password: '',
                sms: '',
                sms_interval: '获取验证码',
                is_send: false,
            }
        },
        methods: {
            close_register() {
                this.$emit('close', false)
            },
            go_login() {
                this.$emit('go')
            },
            check_mobile() {
                if (!this.mobile) return;
                if (!this.mobile.match(/^1[3-9][0-9]{9}$/)) {
                    this.$message({
                        message: '手机号有误',
                        type: 'warning',
                        duration: 1000,
                        onClose: () => {
                            this.mobile = '';
                        }
                    });
                    return false;
                }
                this.is_send = true;
            },
            send_sms() {
                if (!this.is_send) return;
                this.is_send = false;
                let sms_interval_time = 60;
                this.sms_interval = "发送中...";
                let timer = setInterval(() => {
                    if (sms_interval_time <= 1) {
                        clearInterval(timer);
                        this.sms_interval = "获取验证码";
                        this.is_send = true; // 重新回复点击发送功能的条件
                    } else {
                        sms_interval_time -= 1;
                        this.sms_interval = `${sms_interval_time}秒后再发`;
                    }
                }, 1000);
            }
        }
    }
</script>

<style scoped>
    .register {
        width: 100vw;
        height: 100vh;
        position: fixed;
        top: 0;
        left: 0;
        z-index: 10;
        background-color: rgba(0, 0, 0, 0.3);
    }

    .box {
        width: 400px;
        height: 480px;
        background-color: white;
        border-radius: 10px;
        position: relative;
        top: calc(50vh - 240px);
        left: calc(50vw - 200px);
    }

    .el-icon-close {
        position: absolute;
        font-weight: bold;
        font-size: 20px;
        top: 10px;
        right: 10px;
        cursor: pointer;
    }

    .el-icon-close:hover {
        color: darkred;
    }

    .content {
        position: absolute;
        top: 40px;
        width: 280px;
        left: 60px;
    }

    .nav {
        font-size: 20px;
        height: 38px;
        border-bottom: 2px solid darkgrey;
    }

    .nav > span {
        margin-left: 90px;
        color: darkgrey;
        user-select: none;
        cursor: pointer;
        padding-bottom: 10px;
        border-bottom: 2px solid darkgrey;
    }

    .nav > span.active {
        color: black;
        border-bottom: 3px solid black;
        padding-bottom: 9px;
    }

    .el-input, .el-button {
        margin-top: 40px;
    }

    .el-button {
        width: 100%;
        font-size: 18px;
    }

    .foot > span {
        float: right;
        margin-top: 20px;
        color: orange;
        cursor: pointer;
    }

    .sms {
        color: orange;
        cursor: pointer;
        display: inline-block;
        width: 70px;
        text-align: center;
        user-select: none;
    }
</style>

【五】头部header页面

• luffy\lufycity_web\src\components\Header.vue

<template>
  <div class="header">
    <div class="slogan">
      <p>老男孩IT教育 | 帮助有志向的年轻人通过努力学习获得体面的工作和生活</p>
    </div>
    <div class="nav">
      <ul class="left-part">
        <li class="logo">
          <router-link to="/">
            <img src="../assets/img/head-logo.svg" alt="">
          </router-link>
        </li>
        <li class="ele">
          <span @click="goPage('/free-course')" :class="{active: url_path === '/free-course'}">免费课</span>
        </li>
        <li class="ele">
          <span @click="goPage('/actual-course')" :class="{active: url_path === '/actual-course'}">实战课</span>
        </li>
        <li class="ele">
          <span @click="goPage('/light-course')" :class="{active: url_path === '/light-course'}">轻课</span>
        </li>
      </ul>

      <div class="right-part">
        <div>
          <span @click="put_login">登录</span>
          <span class="line">|</span>
          <span @click="put_register">注册</span>

        </div>
        <Login v-if="is_login" @close="close_login" @go="put_register"/>
        <Register v-if="is_register" @close="close_register" @go="put_login"/>
      </div>
    </div>
  </div>
</template>

<script>
import Login from "@/components/Login.vue";
import Register from "@/components/Register.vue";

export default {
  name: "Header",
  data() {
    return {
      url_path: sessionStorage.url_path || '/',
      is_login: false,
      is_register: false,
    }
  },
  components: {
    Login,
    Register,
  },
  methods: {
    goPage(url_path) {
      // 已经是当前路由就没有必要重新跳转
      if (this.url_path !== url_path) {
        this.$router.push(url_path);
      }
      sessionStorage.url_path = url_path;
    },
    put_login() {
      this.is_login = true;
      this.is_register = false;
    },
    put_register() {
      this.is_login = false;
      this.is_register = true;
    },
    close_login() {
      this.is_login = false;
    },
    close_register() {
      this.is_register = false;
    }
  },
  created() {
    sessionStorage.url_path = this.$route.path;
    this.url_path = this.$route.path;
  }
}
</script>

<style scoped>
.header {
  background-color: white;
  box-shadow: 0 0 5px 0 #aaa;
}

.header:after {
  content: "";
  display: block;
  clear: both;
}

.slogan {
  background-color: #eee;
  height: 40px;
}

.slogan p {
  width: 1200px;
  margin: 0 auto;
  color: #aaa;
  font-size: 13px;
  line-height: 40px;
}

.nav {
  background-color: white;
  user-select: none;
  width: 1200px;
  margin: 0 auto;

}

.nav ul {
  padding: 15px 0;
  float: left;
}

.nav ul:after {
  clear: both;
  content: '';
  display: block;
}

.nav ul li {
  float: left;
}

.logo {
  margin-right: 20px;
}

.ele {
  margin: 0 20px;
}

.ele span {
  display: block;
  font: 15px/36px '微软雅黑';
  border-bottom: 2px solid transparent;
  cursor: pointer;
}

.ele span:hover {
  border-bottom-color: orange;
}

.ele span.active {
  color: orange;
  border-bottom-color: orange;
}

.right-part {
  float: right;
}

.right-part .line {
  margin: 0 10px;
}

.right-part span {
  line-height: 68px;
  cursor: pointer;
}
</style>

【六】前端登陆功能实现

• lufycity_web\src\components\Login.vue

<template>
  <div class="login">
    <div class="box">
      <i class="el-icon-close" @click="close_login"></i>
      <div class="content">
        <div class="nav">
          <span :class="{active: login_method === 'is_pwd'}" @click="change_login_method('is_pwd')">密码登录</span>
          <span :class="{active: login_method === 'is_sms'}" @click="change_login_method('is_sms')">短信登录</span>
        </div>
        <el-form v-if="login_method === 'is_pwd'">
          <el-input
              placeholder="用户名/手机号/邮箱"
              prefix-icon="el-icon-user"
              v-model="username"
              clearable>
          </el-input>
          <el-input
              placeholder="密码"
              prefix-icon="el-icon-key"
              v-model="password"
              clearable
              show-password>
          </el-input>
          <el-button type="primary" @click="handleLogin">登录</el-button>
        </el-form>
        <el-form v-if="login_method === 'is_sms'">
          <el-input
              placeholder="手机号"
              prefix-icon="el-icon-phone-outline"
              v-model="mobile"
              clearable
              @blur="check_mobile">
          </el-input>
          <el-input
              placeholder="验证码"
              prefix-icon="el-icon-chat-line-round"
              v-model="sms"
              clearable>
            <template slot="append">
              <span class="sms" @click="send_sms">{{ sms_interval }}</span>
            </template>
          </el-input>
          <el-button type="primary" @click="handleSmSLogin">登录</el-button>
        </el-form>
        <div class="foot">
          <span @click="go_register">立即注册</span>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
export default {
  name: "Login",
  data() {
    return {
      username: '',
      password: '',
      mobile: '',
      sms: '',
      login_method: 'is_pwd',
      sms_interval: '获取验证码',
      is_send: false, // true发送验证码，false不允许发
    }
  },
  methods: {
    close_login() {
      this.$emit('close')
    },
    go_register() {
      this.$emit('go')
    },
    change_login_method(method) {
      this.login_method = method;
    },
    check_mobile() {
      if (!this.mobile) return;
      if (!this.mobile.match(/^1[3-9][0-9]{9}$/)) {
        this.$message({
          message: '手机号有误',
          type: 'warning',
          duration: 1000,
          onClose: () => {
            this.mobile = '';
          }
        });
        return false;
      }

      // 后端交互，校验手机号是否被注册过，如果注册过才能发送
      this.$axios.get(`${this.$settings.BASE_URL}user/userinfo/check_mobile/?mobile=${this.mobile}`).then(res => {
        if (res.data.code != 100) {

          this.$message({
            message: "手机号未注册,请先注册",
            type: 'warning'
          });

          // 手机号失败,清空手机号
          this.mobile = ''

        } else {
          this.is_send = true; // 允许发送验证码
        }
      })
    },
    // 发送手机验证码
    send_sms() {
      if (!this.is_send) return; // 如果是false 不允许发送验证码
      this.is_send = false; // 点击后变为true  允许发送验证码
      let sms_interval_time = 60; // 验证码发送频率限制
      this.sms_interval = "发送中...";
      let timer = setInterval(() => { // 设置定时器
        if (sms_interval_time <= 1) { // 定时时间小于 1分钟
          clearInterval(timer); // 时间为空清空定时器
          this.sms_interval = "获取验证码";
          this.is_send = true; // 重新回复点击发送功能的条件
        } else {
          sms_interval_time -= 1;
          this.sms_interval = `${sms_interval_time}秒后再发`;
        }
      }, 1000);
    },
    // 用户名密码登录
    handleLogin() {
      if (this.username && this.password) {
        this.$axios.post(`${this.$settings.BASE_URL}user/userinfo/mul_login/`, {
          username: this.username,
          password: this.password
        }).then(res => {
          if (res.data.code === 100) {
            // 登录成功 返回了token，用户名，头像--->把他们存到cookie中
            this.$cookies.set('token', res.data.token, '7d')
            this.$cookies.set('username', res.data.username, '7d')
            this.$cookies.set('icon', res.data.icon, '7d')
            // 页面关闭,子传父，调用 自定义事件close，就会触发父组件中的close_login方法
            this.$emit('close')
          } else {
            this.$message({
              message: res.data.msg,
              type: 'warning'
            });
          }
        })
      } else {
        this.$message({
          message: '用户名或密码不能为空',
          type: 'warning'
        });
      }
    },
    // 验证码登录
    handleSmSLogin() {
      if (this.mobile && this.sms) {
        this.$axios.post(`${this.$settings.BASE_URL}user/userinfo/sms_login/`, {
          mobile: this.mobile,
          code: this.sms
        }).then(res => {
          if (res.data.code == 100) {
            this.$cookies.set('token', res.data.token, '7d')
            this.$cookies.set('username', res.data.username, '7d')
            this.$cookies.set('icon', res.data.icon, '7d')
            this.$emit('close')
          } else {
            this.$message({
              message: res.data.msg,
              type: 'warning'
            });
          }
        })
      } else {
        this.$message({
          message: '手机号或验证码不能为空',
          type: 'warning'
        });
      }
    }
  }
}
</script>

<style scoped>
.login {
  width: 100vw;
  height: 100vh;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 10;
  background-color: rgba(0, 0, 0, 0.5);
}

.box {
  width: 400px;
  height: 420px;
  background-color: white;
  border-radius: 10px;
  position: relative;
  top: calc(50vh - 210px);
  left: calc(50vw - 200px);
}

.el-icon-close {
  position: absolute;
  font-weight: bold;
  font-size: 20px;
  top: 10px;
  right: 10px;
  cursor: pointer;
}

.el-icon-close:hover {
  color: darkred;
}

.content {
  position: absolute;
  top: 40px;
  width: 280px;
  left: 60px;
}

.nav {
  font-size: 20px;
  height: 38px;
  border-bottom: 2px solid darkgrey;
}

.nav > span {
  margin: 0 20px 0 35px;
  color: darkgrey;
  user-select: none;
  cursor: pointer;
  padding-bottom: 10px;
  border-bottom: 2px solid darkgrey;
}

.nav > span.active {
  color: black;
  border-bottom: 3px solid black;
  padding-bottom: 9px;
}

.el-input, .el-button {
  margin-top: 40px;
}

.el-button {
  width: 100%;
  font-size: 18px;
}

.foot > span {
  float: right;
  margin-top: 20px;
  color: orange;
  cursor: pointer;
}

.sms {
  color: orange;
  cursor: pointer;
  display: inline-block;
  width: 70px;
  text-align: center;
  user-select: none;
}
</style>

【七】前端注册功能实现

• lufycity_web\src\components\Register.vue

<template>
  <div class="register">
    <div class="box">
      <i class="el-icon-close" @click="close_register"></i>
      <div class="content">
        <div class="nav">
          <span class="active">新用户注册</span>
        </div>
        <el-form>
          <el-input
              placeholder="手机号"
              prefix-icon="el-icon-phone-outline"
              v-model="mobile"
              clearable
              @blur="check_mobile">
          </el-input>
          <el-input
              placeholder="密码"
              prefix-icon="el-icon-key"
              v-model="password"
              clearable
              show-password>
          </el-input>
          <el-input
              placeholder="验证码"
              prefix-icon="el-icon-chat-line-round"
              v-model="sms"
              clearable>
            <template slot="append">
              <span class="sms" @click="send_sms">{{ sms_interval }}</span>
            </template>
          </el-input>
          <el-button type="primary" @click="handleRegister">注册</el-button>
        </el-form>
        <div class="foot">
          <span @click="go_login">立即登录</span>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
export default {
  name: "Register",
  data() {
    return {
      mobile: '',
      password: '',
      sms: '',
      sms_interval: '获取验证码',
      is_send: false,
    }
  },
  methods: {
    close_register() {
      this.$emit('close', false)
    },
    go_login() {
      this.$emit('go')
    },
    check_mobile() {
      if (!this.mobile) return;
      if (!this.mobile.match(/^1[3-9][0-9]{9}$/)) {
        this.$message({
          message: '手机号有误',
          type: 'warning',
          duration: 1000,
          onClose: () => {
            this.mobile = '';
          }
        });
        return false;
      }

      // 校验手机号能发验证码 ---- 注册成功的手机号
      this.$axios.get(`${this.$settings.BASE_URL}user/userinfo/check_mobile/?mobile=${this.mobile}`).then(res => {
        if (res.data.code != 100) {
          // 提示该手机号未注册
          this.$message({
            message: '该手机号未注册，可以发送短信',
            type: 'success'
          });
          this.is_send = true;   // 可以发送验证码
        } else {
          // 手机号注册过了，不用注册了，直接登录即可
          this.$message({
            message: '该手机号已经注册过，可以直接登录',
            type: 'success',
            onClose: () => {
              // 跳转到登录页面
              this.$emit('go')
            }
          });
        }
      })

    },
    send_sms() {
      if (!this.is_send) return;
      this.is_send = false;
      let sms_interval_time = 60;
      this.sms_interval = "发送中...";
      let timer = setInterval(() => {
        if (sms_interval_time <= 1) {
          clearInterval(timer);
          this.sms_interval = "获取验证码";
          this.is_send = true; // 重新回复点击发送功能的条件
        } else {
          sms_interval_time -= 1;
          this.sms_interval = `${sms_interval_time}秒后再发`;
        }
      }, 1000);

      // 校验手机号能发验证码 ---- 注册成功的手机号
      this.$axios.get(`${this.$settings.BASE_URL}user/userinfo/check_mobile/?mobile=${this.mobile}`).then(res => {
        this.$message({
          message: res.data.msg,
          type: "success"
        });
      })
    },
    handleRegister() {
      if (this.mobile && this.sms && this.password) {
        this.$axios.post(`${this.$settings.BASE_URL}user/userinfo/register/`, {
          mobile: this.mobile,
          code: this.sms,
          password: this.password,
        }).then(res => {
          if (res.data.code === 100) {
            // 注册成功
            this.$message({
              message: res.data.msg,
              type: "success"
            });
            // 跳转登录 ---- 自定义事件功能
            this.$emit('go')
          }
        })
      } else {
        this.$message({
          message: "手机号,验证码,密码不能为空",
          type: "success"
        });
      }
    },
  }
}
</script>

<style scoped>
.register {
  width: 100vw;
  height: 100vh;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 10;
  background-color: rgba(0, 0, 0, 0.3);
}

.box {
  width: 400px;
  height: 480px;
  background-color: white;
  border-radius: 10px;
  position: relative;
  top: calc(50vh - 240px);
  left: calc(50vw - 200px);
}

.el-icon-close {
  position: absolute;
  font-weight: bold;
  font-size: 20px;
  top: 10px;
  right: 10px;
  cursor: pointer;
}

.el-icon-close:hover {
  color: darkred;
}

.content {
  position: absolute;
  top: 40px;
  width: 280px;
  left: 60px;
}

.nav {
  font-size: 20px;
  height: 38px;
  border-bottom: 2px solid darkgrey;
}

.nav > span {
  margin-left: 90px;
  color: darkgrey;
  user-select: none;
  cursor: pointer;
  padding-bottom: 10px;
  border-bottom: 2px solid darkgrey;
}

.nav > span.active {
  color: black;
  border-bottom: 3px solid black;
  padding-bottom: 9px;
}

.el-input, .el-button {
  margin-top: 40px;
}

.el-button {
  width: 100%;
  font-size: 18px;
}

.foot > span {
  float: right;
  margin-top: 20px;
  color: orange;
  cursor: pointer;
}

.sms {
  color: orange;
  cursor: pointer;
  display: inline-block;
  width: 70px;
  text-align: center;
  user-select: none;
}
</style>

【八】前端头部组件实现

• lufycity_web\src\components\Header.vue

<template>
  <div class="header">
    <div class="slogan">
      <p>老男孩IT教育 | 帮助有志向的年轻人通过努力学习获得体面的工作和生活</p>
    </div>
    <div class="nav">
      <ul class="left-part">
        <li class="logo">
          <router-link to="/">
            <img src="../assets/img/head-logo.svg" alt="">
          </router-link>
        </li>
        <li class="ele">
          <span @click="goPage('/free-course')" :class="{active: url_path === '/free-course'}">免费课</span>
        </li>
        <li class="ele">
          <span @click="goPage('/actual-course')" :class="{active: url_path === '/actual-course'}">实战课</span>
        </li>
        <li class="ele">
          <span @click="goPage('/light-course')" :class="{active: url_path === '/light-course'}">轻课</span>
        </li>
      </ul>

      <div class="right-part">
        <div v-if="username">

          <span><el-avatar :src="circleUrl"></el-avatar>{{ username }}</span>
          <span class="line">|</span>
          <span @click="handleLogout">注销</span>

        </div>
        <div v-else>
          <span @click="put_login">登录</span>
          <span class="line">|</span>
          <span @click="put_register">注册</span>

        </div>
        <Login v-if="is_login" @close="close_login" @go="put_register"/>
        <Register v-if="is_register" @close="close_register" @go="put_login"/>
      </div>
    </div>
  </div>
</template>

<script>
import Login from "@/components/Login.vue";
import Register from "@/components/Register.vue";

export default {
  name: "Header",
  data() {
    return {
      url_path: sessionStorage.url_path || '/',
      is_login: false,
      is_register: false,
      username: '',
      circleUrl: '',
    }
  },
  components: {
    Login,
    Register,
  },
  methods: {
    goPage(url_path) {
      // 已经是当前路由就没有必要重新跳转
      if (this.url_path !== url_path) {
        this.$router.push(url_path);
      }
      sessionStorage.url_path = url_path;
    },
    put_login() {
      this.is_login = true;
      this.is_register = false;
    },
    put_register() {
      this.is_login = false;
      this.is_register = true;
    },
    close_login() {
      this.is_login = false;
      // 子组件登陆成功触发 ， 将登陆成功的信息取出
      this.username = this.$cookies.get('username')
      this.icon = this.$cookies.get('icon')
    },
    close_register() {
      this.is_register = false;
    },
    handleLogout() {
      // 前后端分离，用户退出，只需要清除浏览器的cookie记录即可
      // 如果后端需要记录用户登陆退出时间，则需要发送axios请求到后端
      this.$cookies.remove('username')
      this.$cookies.remove('token')
      this.$cookies.remove('icon')
      this.username = ''
    },
  },
  created() {
    sessionStorage.url_path = this.$route.path;
    this.url_path = this.$route.path;
    this.username = this.$cookies.get('username')
    this.circleUrl = this.$cookies.get('icon')
  }
}
</script>

<style scoped>
.header {
  background-color: white;
  box-shadow: 0 0 5px 0 #aaa;
}

.header:after {
  content: "";
  display: block;
  clear: both;
}

.slogan {
  background-color: #eee;
  height: 40px;
}

.slogan p {
  width: 1200px;
  margin: 0 auto;
  color: #aaa;
  font-size: 13px;
  line-height: 40px;
}

.nav {
  background-color: white;
  user-select: none;
  width: 1200px;
  margin: 0 auto;

}

.nav ul {
  padding: 15px 0;
  float: left;
}

.nav ul:after {
  clear: both;
  content: '';
  display: block;
}

.nav ul li {
  float: left;
}

.logo {
  margin-right: 20px;
}

.ele {
  margin: 0 20px;
}

.ele span {
  display: block;
  font: 15px/36px '微软雅黑';
  border-bottom: 2px solid transparent;
  cursor: pointer;
}

.ele span:hover {
  border-bottom-color: orange;
}

.ele span.active {
  color: orange;
  border-bottom-color: orange;
}

.right-part {
  float: right;
}

.right-part .line {
  margin: 0 10px;
}

.right-part span {
  line-height: 68px;
  cursor: pointer;
}
</style>

【九】拓展功能

• 写个短信登录注册接口（只需要传手机号和验证码，生成一个默认密码，以短信形式通知用户）

• 登录接口，如果是用默认密码，不允许登录

• 记录三次用户密码修改记录，每次改密码，不能跟之前用过的相同

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