vue学习之路 —— 点击tab加载不同的组件

一：需要实现：点击导航栏加载不同的组件

二：本实例使用vue  + elementUi

三：需用到的页面：主组件，子组件1，子组件2，目录如下图所示：

　　

四：父组件中代码（子组件无处理操作）

<template>
  <div>
    <div style="background: #135f92">
       <img src="../assets/logo.png" style=" 78px;height:40px;
       display: block;padding:10px;padding-bottom: 4px;">
    </div>
    <div style="204px;float: left; height:-webkit-fill-available;;
    background: rgb(84,92,100);">
      <el-row class="tac">
        <el-col :span="24">
          <el-menu
            default-active="2"
            class="el-menu-vertical-demo"
            @open="handleOpen"
            @close="handleClose"
            background-color="#545c64"
            text-color="#fff"
            active-text-color="#ffd04b">
            <el-menu-item index="1" @click="changePage(chartBox)">
              <i class="el-icon-menu"></i>
              <span slot="title">Vue-echarts</span>
            </el-menu-item>
            <el-menu-item index="2" @click="changePage(tableBox)">
              <i class="el-icon-menu"></i>
              <span slot="title">table</span>
            </el-menu-item>
            <el-menu-item index="3">
              <i class="el-icon-setting"></i>
              <span slot="title">设置</span>
            </el-menu-item>

            <el-menu-item index="4">
              <i class="el-icon-setting"></i>
              <span slot="title">设置</span>
            </el-menu-item>
            <el-submenu index="5">
              <template slot="title">
                <i class="el-icon-location"></i>
                <span>导航一</span>
              </template>
              <el-menu-item-group>
                <template slot="title">分组一</template>
                <el-menu-item index="1-1">选项1</el-menu-item>
                <el-menu-item index="1-2">选项2</el-menu-item>
              </el-menu-item-group>
              <el-menu-item-group title="分组2">
                <el-menu-item index="1-3">选项3</el-menu-item>
              </el-menu-item-group>
              <el-submenu index="1-4">
                <template slot="title">选项4</template>
                <el-menu-item index="1-4-1">选项1</el-menu-item>
              </el-submenu>
            </el-submenu>
          </el-menu>
        </el-col>
      </el-row>
    </div>
    <div class="chartCon" id="chartCon" style="height:280px;margin-left: 204px;padding-top: 40px;">
      <component :is="currentView"></component>
    </div>
  </div>
</template>

<script>
  import chartBox from './chart.vue';
  import tableBox from './table.vue';
  export default {
    data () {
      return {
        chartBox: 'chartBox',
        tableBox: 'tableBox',
        currentView: 'tableBox' // 默认选中第一项
      };
    },
    methods: {
      handleOpen(key, keyPath) {
        console.log(key, keyPath);
      },
      handleClose(key, keyPath) {
        console.log(key, keyPath);
      },
      changePage(tabItem) {
        this.currentView = tabItem;
      }
    },
    components: {
      chartBox,
      tableBox
    }
  }
</script>