主要內容

本章目標：vue+element-ui完成注冊以及登陸

1.效果展示

2.視圖頁面：views

注冊頁面效果實作：

<template>
  <div class="login-section">
    <!-- :rules="rules" -->
    <el-form label-position="top" label-width="100px" class="demo-ruleForm" :rules="rules" :model="rulesForm" status-icon ref='ruleForm'>
      <el-form-item label="用戶名" prop="name">
        <el-input type="text" v-model="rulesForm.name"></el-input>
      </el-form-item>
      <el-form-item label="密碼" prop="password">
        <el-input type="password" v-model="rulesForm.password"></el-input>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" @click="submitForm('ruleForm')">提交</el-button>
        <el-button>重置</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>
<script>
import {login} from '@/service/api';
export default {
  data() {
    return {
      rulesForm:{
        name:'',
        password:''
      },
      rules:{
        name:[
            {required:true,message:'名字沒寫',trigger:'blur'},
            {min:1,max:5,message:'長度在3到5位'}
        ],
         password:[
            {required:true,message:'名字沒寫',trigger:'blur'},
            {min:3,max:5,message:'長度在3到5位'}
        ]
      }
    };
  },
  methods: {
    submitForm(formName){
      this.$refs[formName].validate((valid)=>{
        if(valid){//如果校檢通過向后端發送用戶名 密碼
            login({
              name:this.rulesForm.name,
              password:this.rulesForm.password
            }).then((data)=>{
                console.log(data)
                if(data.code===0){
                  localStorage.setItem('token',data.data.token)
                  window.location.href='/'
                }
                if(data.code===1){
                  this.$message.error(data.mes)
                }
            })
        }else{
          console.log('error submit!!');
          return false;
        }
      })
    }
  }
}
</script>
<style lang="stylus">
.login-section
  padding 0px 20px
</style>

login.vue

<template>
  <div class="login-section">
    <el-form label-position="top" label-width="100px" class="demo-ruleForm" :rules="rules" :model="rulesForm" status-icon ref='ruleForm'>
      <el-form-item label="用戶名" prop="name">
        <el-input type="text" v-model="rulesForm.name"></el-input>
      </el-form-item>
      <el-form-item label="密碼" prop="password">
        <el-input type="password" v-model="rulesForm.password"></el-input>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" @click="submitForm('ruleForm')">提交</el-button>
        <el-button>重置</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>
<script>
import {login} from '@/service/api';
export default {
  data() {
    return {
      rulesForm:{
        name:'',
        password:''
      },
      rules:{
        name:[
            {required:true,message:'名字沒寫',trigger:'blur'},
            {min:1,max:5,message:'長度在3到5位'}
        ],
         password:[
            {required:true,message:'名字沒寫',trigger:'blur'},
            {min:3,max:5,message:'長度在3到5位'}
        ]
      }
    };
  },
  methods: {
    submitForm(formName){
      this.$refs[formName].validate((valid)=>{
        if(valid){//如果校檢通過向后端發送用戶名 密碼
            login({
              name:this.rulesForm.name,
              password:this.rulesForm.password
            }).then((data)=>{
                console.log(data)
                if(data.code===0){
                  localStorage.setItem('token',data.data.token)
                  window.location.href='/'
                }
                if(data.code===1){
                  this.$message.error(data.mes)
                }
            })
        }else{
          console.log('error submit!!');
          return false;
        }
      })
    }
  }
}
</script>
<style lang="stylus">
.login-section
  padding 0px 20px
</style>

路由：index.js

import Vue from 'vue'
import Router from 'vue-router'
Vue.use(Router)
import Store from '@/store'
import {userInfo} from '@/service/api.js'
import Home from '@/views/home/Home.vue'
import Login from '@/views/user-login/index.vue'
const router = new Router({
    mode:"history",
    routes:[
        {
            path:'/',
            name:"Home",
            title:"首頁",
            component:Home
        }，
        {
            path:'/login',
            name:"login",
            title:"登錄頁",
            component:Login,
            meta:{
                login:true
            }
        }
    ]
});
router.beforeEach( async (to,from,next) => {
    const token = localStorage.getItem('token');
    const isLogin = !!token;
    //進入路由的時候，需要向后端發送token，驗證是否合法
    const data = await userInfo();
    Store.commit('chageUserInfo',data.data)
   if(to.matched.some(item => item.meta.login)){//需要登錄
        if(isLogin){//已經登錄的，直接通過
            if(data.error === 400){//后端告訴你，登錄不成功
                next({name:'login'});
                localStorage.removeItem('token');
                return;
            }
            if(to.name === 'login'){
                next({name:'home'});
            }else{
                next();
            }
            return;
        }
        if(!isLogin && to.name === 'login'){//未登錄，但是要去登錄頁
            next();
        }
        if(!isLogin && to.name !== 'login'){//未登錄，去的也不是登錄頁
            next({name:'login'});
        }
   }else{
       next();
   }
})
export default router;

總結

今天的內容就先到這里 因為還有一些沒完善所以不是很好 后面再繼續改進！