Springboot+vue后台管理系统-登陆注册功能的实现

首先说一下怎样写登陆注册功能：

我们之前是直接在Home.vue里面直接写主题代码，在APP.vue里面直接引入全部主题，但是显然这样是不符合实际情况的！所以我们需要写新的路由：

我们新的APP.vue：

<template>
  <div >
    <router-view />
  </div>
</template>


<script>
export default {
  name:"Layout",

}
</script>

然后我们新建一个框架层：也就是上面APP.vue引入的

<template>

  <div>

    <!--    头部-->
    <Header/>
    <!--    主体-->
    <div style="display: flex">
      <!--      侧边栏-->
      <Aside />
      <!--      内容区域-->
      <router-view style="flex: 1"/>
    </div>

  </div>

</template>

<script>
import Header from "@/components/Header";
import Aside from "@/components/Aside";
export default {
  name: "Layout.vue",
  components:{
    Header,
    Aside
  }
}
</script>

<style scoped>

</style>

接下来我们写登陆界面：

<template>
  <div class="homepage-hero-module">
    <div class="video-container">
      <div :style="fixStyle" class="filter">
        <div style="width: 400px; margin: 100px auto">
          <div style="font-size: 30px; text-align: center; padding: 30px 0; color: #333">欢迎登录div>
          <el-form ref="form" :model="form" size="normal" :rules="rules">
            <el-form-item prop="username">
              <el-input  v-model="form.username" placeholder="请输入账号">el-input>
            el-form-item>
            <el-form-item prop="password">
              <el-icon :size="20">
                <edit />
              el-icon>
              <el-input  v-model="form.password" show-password placeholder="请输入密码">el-input>
            el-form-item>
            <el-form-item>
              <div style="display: flex">
                <el-input prefix-icon="el-icon-key" v-model="form.validCode" style="width: 50%;" placeholder="请输入验证码">el-input>
                <ValidCode @input="createValidCode" />
              div>
            el-form-item>
            
            
            
            
            <el-form-item>
              <el-button style="width: 100%" type="primary" @click="login">登 录el-button>
            el-form-item>
            <el-form-item><el-button type="text" @click="$router.push('/register')">前往注册 >> el-button>el-form-item>
          el-form>
        div>
      div>
      <video :style="fixStyle" autoplay loop muted class="fillWidth" v-on:canplay="canplay">
        <source src="../assets/sea.mp4" type="video/mp4"/>
        浏览器不支持 video 标签，建议升级浏览器。
      video>
    div>
  div>

template>

<script>
import request from "@/utils/request";
import ValidCode from "@/components/ValidCode";
import { ArrowDown } from '@element-plus/icons-vue';
import {Share} from "@element-plus/icons";
export default {
  name: "Login",
  components: {
    Share,
    ValidCode,
    ArrowDown
  },
  data() {
    return {
      vedioCanPlay: false,
      fixStyle: '',
      form: {role: 1},
      rules: {
        username: [
          {required: true, message: '请输入用户名', trigger: 'blur'},
        ],
        password: [
          {required: true, message: '请输入密码', trigger: 'blur'},
        ],
      },
      validCode: ''
      // 加背景图片
      // bg: {
      //   backgroundImage: "url(" + require("@/assets/bg.jpg") + ")",
      //   backgroundRepeat: "no-repeat",
      //   backgroundSize: "100% 100%"
      // }
    }
  },
  mounted() {
    sessionStorage.removeItem("user")

    window.onresize = () => {
      const windowWidth = document.body.clientWidth
      const windowHeight = document.body.clientHeight
      const windowAspectRatio = windowHeight / windowWidth
      let videoWidth
      let videoHeight
      if (windowAspectRatio < 0.5625) {
        videoWidth = windowWidth
        videoHeight = videoWidth * 0.5625
        this.fixStyle = {
          height: windowWidth * 0.5625 + 'px',
          width: windowWidth + 'px',
          'margin-bottom': (windowHeight - videoHeight) / 2 + 'px',
          'margin-left': 'initial'
        }
      } else {
        videoHeight = windowHeight
        videoWidth = videoHeight / 0.5625
        this.fixStyle = {
          height: windowHeight + 'px',
          width: windowHeight / 0.5625 + 'px',
          'margin-left': (windowWidth - videoWidth) / 2 + 'px',
          'margin-bottom': 'initial'
        }
      }
    }
    window.onresize()
  },
  methods: {
    canplay() {
      this.vedioCanPlay = true
    },
    // 接收验证码组件提交的 4位验证码
    createValidCode(data) {
      this.validCode = data
    },
    login () {
      this.$refs['form'].validate((valid) => {
        if (valid) {
          if (!this.form.validCode) {
            this.$message.error("请填写验证码")
            return
          }
          if(this.form.validCode.toLowerCase() !== this.validCode.toLowerCase()) {
            this.$message.error("验证码错误")
            return
          }
          request.post("/user/login", this.form).then(res => {
            if (res.code === '0') {
              this.$message({
                type: "success",
                message: "登录成功"
              })
              sessionStorage.setItem("user", JSON.stringify(res.data))  // 缓存用户信息

              // 登录成功的时候更新当前路由
              this.$router.push("/layout")  //登录成功之后进行页面的跳转，跳转到主页

            } else {
              this.$message({
                type: "error",
                message: res.msg
              })
            }
          })
        }
      })
    }
  }
}
script>

<style scoped>
.homepage-hero-module,
.video-container {
  position: relative;
  height: 100vh;
  overflow: hidden;
}

.video-container .poster img{
  z-index: 0;
  position: absolute;
}

.video-container .filter {
  z-index: 1;
  position: absolute;
  /*background: rgba(0, 0, 0, 0.4);*/
  width: 100%;
}

.fillWidth {
  width: 100%;
}
style>

注册界面：

<template>
  <div style="width: 100%;background-color: orange; height: 100vh; overflow: hidden" >
    <div style="width: 400px; margin: 100px auto">
      <div style="font-size: 30px; text-align: center; padding: 30px 0">欢迎注册div>
      <el-form ref="form" :model="form" size="normal" :rules="rules">
        <el-form-item prop="username">
          <el-input prefix-icon="el-icon-user-solid" v-model="form.username">el-input>
        el-form-item>
        <el-form-item prop="password">
          <el-input prefix-icon="el-icon-lock" v-model="form.password" show-password>el-input>
        el-form-item>
        <el-form-item prop="confirm">
          <el-input prefix-icon="el-icon-lock" v-model="form.confirm" show-password>el-input>
        el-form-item>
        <el-form-item>
          <el-button style="width: 100%" type="primary" @click="register">注册el-button>
        el-form-item>
        <el-form-item><el-button type="text" @click="$router.push('/login')"><<返回登录 el-button>el-form-item>
      el-form>
    div>
  div>
template>

<script>
import request from "@/utils/request";

export default {
  name: "Register",
  data() {
    return {
      form: {},
      rules: {
        username: [
          {required: true, message: '请输入用户名', trigger: 'blur'},
        ],
        password: [
          {required: true, message: '请输入密码', trigger: 'blur'},
        ],
        confirm: [
          {required: true, message: '请确认密码', trigger: 'blur'},
        ],
      }
    }
  },
  methods: {
    register() {
      if (this.form.password !== this.form.confirm) {
        this.$message({
          type: "error",
          message: '2次密码输入不一致！'
        })
        return
      }

      this.$refs['form'].validate((valid) => {
        if (valid) {
          request.post("/user/register", this.form).then(res => {
            if (res.code === '0') {
              this.$message({
                type: "success",
                message: "注册成功"
              })
              this.$router.push("/login")  //登录成功之后进行页面的跳转，跳转到主页
            } else {
              this.$message({
                type: "error",
                message: res.msg
              })
            }
          })
        }
      })
    }
  }
}
script>

<style scoped>

style>

后端代码：

 /**
     * 用户登录
     */
    @PostMapping("/login")
    public Result<?> login(@RequestBody User user){
        User res = userMapper.selectOne(Wrappers.<User>lambdaQuery().eq(User::getUsername, user.getUsername()).eq(User::getPassword, user.getPassword()));

        if (res ==null){
            return  Result.error("-1","用户名或密码错误");
        }
        return Result.success();
    }

    /**
     * 用户注册
     */
    @PostMapping("/register")
    public Result<?> register(@RequestBody User user){
        User res = userMapper.selectOne(Wrappers.<User>lambdaQuery().eq(User::getUsername, user.getUsername()));
        if (res!=null){
            return Result.error("-1","用户名重复");
        }
        if (user.getPassword()==null){
            user.setPassword("123456");
        }
        userMapper.insert(user);
        return Result.success();
    }

前端路由：

import { createRouter, createWebHistory } from 'vue-router'
import Layout from '../layout/Layout.vue'

const routes = [

  {
    path: '/layout',
    name: 'Layout',
    component: Layout,
    //重定向实现路由自动跳转：
    redirect:"/home",
    // 嵌套路由
    children:[
        {
      path: '/home',
      name: 'Home',
      component: () => import("@/views/Home"),
    }
    ]
  },
  {
    path: '/login',
    name: 'Login',
    component: () => import("@/views/Login")
  },
  {
    path: '/',
    redirect:"/login",
  },
  {
    path: '/register',
    name: 'Register',
    component: () => import("@/views/Register")
  }
]

const router = createRouter({
  history: createWebHistory(process.env.BASE_URL),
  routes
})

export default router

验证码插件：

<template>
  <div
      class="ValidCode disabled-select"
      :style="`width:${width}; height:${height}`"
      @click="refreshCode"
  >
    <span
        v-for="(item, index) in codeList"
        :key="index"
        :style="getStyle(item)"
    >{{ item.code }}span>
  div>
template>

<script>
export default {
  name: 'ValidCode',
  model: {
    prop: 'value',
    event: 'input'
  },
  props: {
    width: {
      type: String,
      default: '100px'
    },
    height: {
      type: String,
      default: '40px'
    },
    length: {
      type: Number,
      default: 4
    },
    refresh: {
      type: Number
    }
  },
  data () {
    return {
      codeList: []
    }
  },
  watch: {
    refresh () {
      this.createdCode()
    }
  },
  mounted () {
    this.createdCode()
  },
  methods: {
    refreshCode () {
      this.createdCode()
    },
    createdCode () {
      const len = this.length
      const codeList = []
      const chars = 'ABCDEFGHJKMNPQRSTWXYZabcdefhijkmnprstwxyz0123456789'
      const charsLen = chars.length
      // 生成
      for (let i = 0; i < len; i++) {
        const rgb = [Math.round(Math.random() * 220), Math.round(Math.random() * 240), Math.round(Math.random() * 200)]
        codeList.push({
          code: chars.charAt(Math.floor(Math.random() * charsLen)),
          color: `rgb(${rgb})`,
          fontSize: `${10 + (+[Math.floor(Math.random() * 10)] + 6)}px`,
          padding: `${[Math.floor(Math.random() * 10)]}px`,
          transform: `rotate(${Math.floor(Math.random() * 90) - Math.floor(Math.random() * 90)}deg)`
        })
      }
      // 指向
      this.codeList = codeList
      // 将当前数据派发出去
      // console.log(codeList.map(item => item.code).join(''))
      this.$emit('input', codeList.map(item => item.code).join(''))
    },
    getStyle (data) {
      return `color: ${data.color}; font-size: ${data.fontSize}; padding: ${data.padding}; transform: ${data.transform}`
    }
  }
}
script>

<style scoped>
.ValidCode{
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
}
.ValidCode span{
  display: inline-block;
}
style>

完结