2019狂神说VUE【8、404和路由钩子】

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<template>
  <div>
    <el-form ref="loginForm" :model="form" :rules="rules" label-width="80px" class="login-box">
      <h3 class="login-title">欢迎登录</h3>
      <el-form-item label="账号" prop="username">
        <el-input type="text" placeholder="请输入账号" v-model="form.username"/>
      </el-form-item>
      <el-form-item label="密码" prop="password">
        <el-input type="password" placeholder="请输入密码" v-model="form.password"/>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" v-on:click="onSubmit('loginForm')">登录</el-button>
      </el-form-item>
    </el-form>

    <el-dialog
      title="温馨提示"
      :visible.sync="dialogVisible"
      width="30%"
      :before-close="handleClose">
      <span>请输入账号和密码</span>
      <span slot="footer" class="dialog-footer">
        <el-button type="primary" @click="dialogVisible = false">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

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

      data(){
          return{
            form: {
              username: '',
              password: ''
            },
            //表单校验
            relus: {
              username: [
                {required: true, message: '账户不可为空', trigger: 'blur'}
              ],
              password: [
                {required: true, message: '密码不可为空', trigger: 'blur'}
              ],
            },
            //对话框显示和隐藏
            dialogVisible: false
          }
      },

      methods: {
        onSubmit(formName){
          //为表单绑定验证功能
          this.$refs[formName].validate((valid) => {
            if (valid) {
              //使用vue-router路由到指定页面，该方式称之为编程式导航
              // this.$router.push("/main");
              this.$router.push("/main/" + this.form.username);
            } else {
              this.dialogVisible = true;
              return false;
            }
          });
        }
      }

  }
</script>

<style scoped></style>

import Vue from 'vue'
import VueRouter from 'vue-router'

import Main from '../views/Main'
import Login from '../views/Login'
import UserList from '../views/user/List'
import UserProfile from '../views/user/Profile'

Vue.use(VueRouter);

export default new VueRouter({
  routes: [
    {
      path: '/login',
      component: Login
    },
    {
      // path: '/main',
      path: '/main/:name',
      props: true,
      component: Main,
      children: [ //嵌套路由
        {path: '/user/list', component: UserList},
        // {path: '/user/profile/:id', name: 'MyUserProfile', component: UserProfile} //接收参数-方式1
        {path: '/user/profile/:id', name: 'MyUserProfile', component: UserProfile, props: true} //接收参数-方式2
      ]
    },
    {
      path: '/goHome',
      redirect: '/main' //重定向
    }
  ]
});

<template>
    <div>
      <el-container>

        <el-aside width="200px">
          <el-menu :default-openeds="['1']">
            <el-submenu index="1">
              <template slot="title"><i class="el-icon-caret-right"></i>用户管理</template>
              <el-menu-item-group>
                <el-menu-item index="1-1">
                  <!--<router-link to="/user/profile">个人信息</router-link>-->
                  <router-link v-bind:to="{name:'MyUserProfile',params:{id:7}}">个人信息</router-link>
                </el-menu-item>
                <el-menu-item index="1-2">
                  <router-link to="/user/list">用户列表</router-link>
                </el-menu-item>
                <el-menu-item index="1-3">
                  <router-link to="/goHome">回到首页</router-link>
                </el-menu-item>
              </el-menu-item-group>
            </el-submenu>
            <el-submenu index="2">
              <template slot="title"><i class="el-icon-caret-right"></i>内容管理</template>
              <e1-menu-item-group>
                <el-menu-item index="2-1">分类管理</el-menu-item>
                <el-menu-item index="2-2">内容列表</el-menu-item>
              </e1-menu-item-group>
            </el-submenu>
            <el-submenu index="3">
              <template slot="title"><i class="el-icon-caret-right"></i>系统管理</template>
              <e1-menu-item-group>
                <el-menu-item index="3-1">用户设置</el-menu-item>
              </e1-menu-item-group>
            </el-submenu>
          </el-menu>
        </el-aside>

        <el-container>
          <el-header style="text-align: right; font-size: 12px">
            <el-dropdown>
              <i class="el-icon-setting" style="margin-right:15px"></i>
              <el-dropdown-menu slot="dropdown">
                <el-dropdown-item>个人信息</el-dropdown-item>
                <el-dropdown-item>退出登录</el-dropdown-item>
              </el-dropdown-menu>
            </el-dropdown>
            <span>{{name}}</span>
          </el-header>

          <el-main>
            <router-view />
          </el-main>
        </el-container>

      </el-container>
    </div>
</template>

<script>
    export default {
        name: "Main",
        props: ['name']
    }
</script>


<style scoped lang="scss">
  .el-header {
    .el-header {
      backdrop-color: #269ad1;
      color: #333;
      line-height: 60px;
    }

    .el-aside {
      color: #269ad1;
    }
  }
</style>

 

 

 

 

 

 

 

 

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{
  "name": "我的json数据",
  "url": "https://yppah.cnblogs.com",
  "page": 1,
  "isNonProfit": true,
  "address": {
    "street": "宁夏路",
    "city": "青岛市",
    "country": "中国"
  },
  "links": [
    {
      "name": "bilibili",
      "url": "https://www.bilibili.com"
    },
    {
      "name": "yub4by",
      "url": "https://yppah.cnblogs.com"
    }
  ]
}

 

 

 

 

 

<template>
  <div> <!--注意template标签下只能有一个根节点，即通常将所有元素都放到一个div里-->

    <h1>个人信息</h1>
    <!--{{ $route.params.id }}--> <!--方式1-->
    {{id}} <!--方式2-2-->

  </div>
</template>

<script>
    export default {
        name: "Profile",
        props: ['id'], //方式2-1
        beforeRouteEnter: (to,from,next)=>{ //这三个参数固定，这个方法类似于拦截器
          console.log("进入路由之前。。。");
          next(vm => {
            vm.getData();//进入路由之前执行   加载数据
          });
        },
        beforeRouteLeave: (to,from,next)=>{
          console.log("进入路由之后。。。");
          next();
        },
        methods: {
          getData: function () {
            this.axios({
              method: 'get',
              url: 'http://localhost:8080/static/mock/data.json'
            }).then(function (response) {
              console.log(response);
            });
          }
        }
    }
</script>

<style scoped>

</style>