微前端：无界wujie简单上手-Toy模板网

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背景

之前用过了微前端框架 qiankun 并剖析了其原理，今天我们来试试另一个同样厉害的微前端框架无界，本文只是讲如何使用，原理部分后面再更新。

无界支持多种项目的接入，如 react、vue 等

普通项目

如果你项目是 react、vue 可以直接用 wujie-vue2、wujie-vue3、wujie-react，但是这些也是基于下面的内容封装的，所以建议看一下，我后面都会讲到

1、安装

npm i wujie -S
import { bus, setupApp, preloadApp, startApp, destroyApp } from "wujie";

2、初始化（非必须）

在项目入口处设置子应用的参数，更多参数请看这里

setupApp({
	name: "唯一id",
	// 子应用地址
	url: "//localhost:9001",
	//	子应用将被挂载在该容器上 HTMLElement | string
	el: "#app1"
})

为什么这一步是非必须的，因为接下来的预加载和启动都是和这一步的参数想同，但是如果你这一步有设置，那么接下来只需要设置这一步的 name 就好。

3、预加载

preloadApp({ name: "唯一id"});

4、启动子应用

startApp({ name: "唯一id" });

子应用将会在第 2 步设置的容器中启动。

vue项目

1、下载

# vue2 框架
npm i wujie-vue2 -S
# vue3 框架
npm i wujie-vue3 -S

2、初始化

// vue2
import WujieVue from "wujie-vue2";
// vue3
import WujieVue from "wujie-vue3";

const { bus, setupApp, preloadApp, destroyApp } = WujieVue;

Vue.use(WujieVue);
// 这里如果设置了，底3步可以直接通过name值来使用，
setupApp({
  name: "app1",
  url: "//localhost:9001/",
  ...lifecycles,
});

3、启动子项目

<WujieVue width="100%" height="100%" name="app1"></WujieVue>

原理

可以看到 wujie-vue 也只是简单的对基本操作进行了封装。

import Vue from "vue";
import { bus, setupApp, preloadApp, startApp, destroyApp } from "wujie";
import { createApp, h, defineComponent } from "vue";
const vue3Flag = !!createApp;

const wujieVueOptions = {
  name: "WujieVue",
  props: {
    width: { type: String, default: "" },
    height: { type: String, default: "" },
    name: { type: String, default: "" },
    loading: { type: HTMLElement, default: undefined },
    url: { type: String, default: "" },
    sync: { type: Boolean, default: false },
    prefix: { type: Object, default: undefined },
    alive: { type: Boolean, default: false },
    props: { type: Object, default: undefined },
    replace: { type: Function, default: undefined },
    fetch: { type: Function, default: undefined },
    fiber: { type: Boolean, default: true },
    degrade: { type: Boolean, default: false },
    plugins: { type: Array, default: null },
    beforeLoad: { type: Function, default: null },
    beforeMount: { type: Function, default: null },
    afterMount: { type: Function, default: null },
    beforeUnmount: { type: Function, default: null },
    afterUnmount: { type: Function, default: null },
    activated: { type: Function, default: null },
    deactivated: { type: Function, default: null },
    loadError: {type: Function, default: null}
  },
  data() {
    return {
      destroy: null,
      startAppQueue: Promise.resolve(),
    };
  },
  mounted() {
    bus.$onAll(this.handleEmit);
    this.execStartApp();
    this.$watch(
      () => this.name + this.url,
      () => this.execStartApp()
    );
  },
  methods: {
    handleEmit(event, ...args) {
      this.$emit(event, ...args);
    },
    execStartApp() {
      this.startAppQueue = this.startAppQueue.then(async () => {
        try {
          this.destroy = await startApp({
            name: this.name,
            url: this.url,
            el: this.$refs.wujie,
            loading: this.loading,
            alive: this.alive,
            fetch: this.fetch,
            props: this.props,
            replace: this.replace,
            sync: this.sync,
            prefix: this.prefix,
            fiber: this.fiber,
            degrade: this.degrade,
            plugins: this.plugins,
            beforeLoad: this.beforeLoad,
            beforeMount: this.beforeMount,
            afterMount: this.afterMount,
            beforeUnmount: this.beforeUnmount,
            afterUnmount: this.afterUnmount,
            activated: this.activated,
            deactivated: this.deactivated,
            loadError: this.loadError
          });
        } catch (error) {
          console.log(error);
        }
      });
    },
  },
  beforeDestroy() {
    bus.$offAll(this.handleEmit);
  },
  render(c) {
    const createElement = vue3Flag ? h : c;
    return createElement("div", {
      style: {
        width: this.height,
        height: this.height,
      },
      ref: "wujie",
    });
  },
};

const WujieVue = vue3Flag ? defineComponent(wujieVueOptions) : Vue.extend(wujieVueOptions);

WujieVue.setupApp = setupApp;
WujieVue.preloadApp = preloadApp;
WujieVue.bus = bus;
WujieVue.destroyApp = destroyApp;
WujieVue.install = function (Vue) {
  Vue.component("WujieVue", WujieVue);
};

export default WujieVue;