vue如何批量引入组件、注册和使用详解

	import A from 'components/A'
	import B from 'components/B'
	import C from 'components/C'
	import D from 'components/D'

<template>
  <div class="water-analysis">
    <div class="content-box" ref="contentbox">
      <a-tabs :default-active-key="activeComponent" @change="tabChangeHandle">
        <a-tab-pane
          v-for="item in tabList"
          :key="item.key"
          :tab="item.tab"
        ></a-tab-pane>
      </a-tabs>
      <div class="tab-pane-box">
      	<!-- 通过is属性，绑定对应的组件名称，展示对应的组件 -->
        <component :is="activeComponent"></component>
      </div>
    </div>
  </div>
</template>

<script>
// 中横线转驼峰
var camelCase = function (s) {
  return s.replace(/-\w/g, function (x) {
    return x.slice(1).toUpperCase();
  });
};
// 批量引入子组件  重点，语法见上
const allComponents = require.context("./comp", false, /\.vue$/);

console.log(allComponents.keys())
// ["./tem-a.vue", "./tem-b.vue", "./tem-c.vue", "./tem-d.vue"]

console.log(allComponents.id)
//./src/views/tempManage/comp sync \.vue$

//制作组件数组，在下方components中注册使用
let resComponents = {};
allComponents.keys().forEach(comName => {
  let name = camelCase(comName);
  const comp = allComponents(comName);
  resComponents[name.replace(/^\.\/(.*)\.\w+$/, "$1")] = comp.default;
});

export default {
  name: "WaterQuery",
  components: resComponents,
  data() {
    return {
      activeComponent: "temA",
      tabList: [
        {
          key: "temA",
          tab: "A组件",
        },
        {
          key: "temB",
          tab: "B组件",
        },
        {
          key: "temC",
          tab: "C组件",
        },
        {
          key: "temD",
          tab: "D组件",
        },
      ],
    };
  },
  created() {
    if (this.$route.query["val"]) {
      this.activeComponent = this.$route.query["val"];
    }
  },
  methods: {
    // 切换tab栏
    tabChangeHandle(val) {
      const {path} = this.$router;

      this.$router.push({
        path,
        query: {val},
      });
      this.activeComponent = val;
    },
  },
};
</script>

<style scoped>
.water-analysis {
  height: 100%;
  overflow: auto;
}
.content-box {
  height: 100%;
}
.tab-pane-box {
  height: calc(100% - 62px);
}
</style>