前端微服务无界实践

// 引入无界，根据框架不同版本不同，引入不同的版本
import { setupApp, bus, preloadApp, startApp } from 'wujie-vue2'

// 设置子应用默认参数
setupApp({
    name: '子应用id（唯一值）',
    url: "子应用地址",
    exec: true,
    el: "容器",
    sync: true
})

// 预加载
preloadApp({ name: "唯一id"});

// 启动子应用
startApp({ name: "唯一id"});

// 本地配置
server: {
    host: '127.0.0.1', // 本地启动如果主子应用没处在同一个ip下，也存在跨域的问题，需要配置
    headers: {
        'Access-Control-Allow-Credentials': true,
        'Access-Control-Allow-Origin': '*', // 如资源没有携带 cookie,需设置此属性
        'Access-Control-Allow-Headers': 'X-Requested-With,Content-Type',
        'Access-Control-Allow-Methods': '*'
    }
}

// nginx 配置
add_header Access-Control-Allow-Credentials true;
add_header Access-Control-Allow-Origin "*";
add_header Access-Control-Allow-Headers 'X-Requested-With,Content-Type';
add_header Access-Control-Allow-Methods "*";

// window.__POWERED_BY_WUJIE__用来判断子应用是否在无界的环境中
if (window.__POWERED_BY_WUJIE__) {
  let instance;
  // 将子应用的实例和路由进线创建和挂载
  window.__WUJIE_MOUNT = () => {
    const router = new VueRouter({ routes });
    instance = new Vue({ router, render: (h) => h(App) }).$mount("#app");
  };
   // 实例销毁
  window.__WUJIE_UNMOUNT = () => {
    instance.$destroy();
  };
} else {
  // 子应用单独启动
  new Vue({ router: new VueRouter({ routes }), render: (h) => h(App) }).$mount("#app");
}
 

// subList.js 数据可在配置页面动态配置
const subList = [
    {
        "name":"subVueApp1",
        "exec":true,// false只会预加载子应用的资源,true时预执行子应用代码
        "alive": true,
        "show":true,// 是否引入
        "url":{
            "pre":"http://xxx1-pre.com",
            "gray":"http://xxx1-gray.com",
            "prod":"http://xxx1.com"
        }
    },
    {
        "name":"subVueApp2",
        "exec":false,// false只会预加载子应用的资源,true时预执行子应用代码
        "alive": false,
        "show":true,// 是否引入
        "url":{
            "pre":"http://xxx2-pre.com",
            "gray":"http://xxx2-gray.com",
            "prod":"http://xxx2.com"
        }
    }
]
export default subList;

// hostMap.js
import subList from './subList'

 const env = process.env.mode || 'pre'

// 子应用map结构
const subMap = {}
const subArr = []

// 转换子应用
export const hostMap = () => {
    subList.forEach(v => {
        const {url, ...other} = v
        const info = {
            ...other,
            url: url[env]
        }
       subMap[v.name] = info
       subArr.push(info)
    })
   return subArr
}

// 获取子应用配置信息
export const getSubMap = name => {
    return subMap[name].show ? subMap[name] : {}
}

// setupApp.js
import WujieVue from 'wujie-vue2';
import {hostMap} from './hostMap';

const { setupApp, preloadApp } = WujieVue 

const setUpApp = Vue => {
    Vue.use(WujieVue)
    hostMap().forEach(v => {
        setupApp(v)
        preloadApp(v.name)
    })
}
export default setUpApp;


// main.js
import Vue from 'vue'
import setUpApp from'@/microConfig/setupApp'
setUpApp(Vue)

// lifecycle.js
const lifecycles = {
  beforeLoad: (appWindow) => console.log(`${appWindow.__WUJIE.id} beforeLoad 生命周期`),
  beforeMount: (appWindow) => console.log(`${appWindow.__WUJIE.id} beforeMount 生命周期`),
  afterMount: (appWindow) => console.log(`${appWindow.__WUJIE.id} afterMount 生命周期`),
  beforeUnmount: (appWindow) => console.log(`${appWindow.__WUJIE.id} beforeUnmount 生命周期`),
  afterUnmount: (appWindow) => console.log(`${appWindow.__WUJIE.id} afterUnmount 生命周期`),
  activated: (appWindow) => console.log(`${appWindow.__WUJIE.id} activated 生命周期`),
  deactivated: (appWindow) => console.log(`${appWindow.__WUJIE.id} deactivated 生命周期`),
  loadError: (url, e) => console.log(`${url} 加载失败`, e),
};

export default lifecycles;


// subCommon.js
// 跳转到主应用指定页面
const toJumpMasterApp = (location, query) => {
    
    this.$router.replace(location, query);
    const url = new URL(window.location.href);
    url.search = query
    // 手动的挂载url查询参数
    window.history.replaceState(null, '', url.href);
}
// 跳转到子应用的页面
const toJumpSubApp = (appName, query) => {
   this.$router.push({path: appName}, query)
}
export default {
    toJumpMasterApp,
    toJumpSubApp 
}


// setupApp.js
import lifecycles from './lifecycles';
import subCommon from './subCommon';
const setUpApp = Vue => {
    ....
    hostMap().forEach(v => {
        setupApp({
            ...v,
            ...lifecycles,
            props: subCommon
        })
        preloadApp(v.name)
    })
}

// 子应用页面加载
// app1.vue
<template>
    <WujieVue
        :key="update"
        width="100%"
        height="100%"
        :name="name"
        :url="appUrl"
        :sync="subVueApp1Info.sync" 
        :alive="subVueApp1Info.alive" 
        :props="{ data: dataProps ,method:{propsMethod}}"
    ></WujieVue>
</template>

<script>
import wujieVue from "wujie-vue2";
import {getSubMap} from '../../hostMap';
const name = 'subVueApp1'
export default {
    data() {
       return {
          dataProps: [],
          subVueApp1Info: getSubMap(name)
       }
    },
    computed: {
      appUrl() {
        // return getSubMap('subVueApp1').url
        return this.subVueApp1Info.url + this.$route.params.path
      }
    },
     watch: {
        // 如果子应用是保活模式，可以采用通信的方式告知路由变化
        "$route.params.path": {
          handler: function () {
            wujieVue.bus.$emit("vue-router-change", `/${this.$route.params.path}`);
          },
          immediate: true,
        },
      },
    methods: {
        propsMethod() {}
    }
}
</script>

// plugins.js
const plugins = {
  'subVueApp1': [{
    htmlLoader:code => {
      return code;
    },
    cssAfterLoaders: [
      // 在加载html所有样式之后添加一个外联样式
      { src:'http://xxx/xxx.css' },
      // 在加载html所有样式之后添加一个内联样式
      { content:'img{height: 300px}' }
    ],
    jsAfterLoaders: [
      { src:'http://xxx/xxx.js' },
      // 插入一个内联脚本本
      { content:`
          window.$wujie.bus.$on('routeChange', path => {
          console.log(path, window, self, global, location)
          })`
      },
      // 执行一个回调
      {
        callback(appWindow) {
          console.log(appWindow.__WUJIE.id);
        }
      }
    ]
  }],
  'subVueApp2': [{
    htmlLoader: code=> {
      return code;
    }
  }]
};
export default plugins;

// setupApp.js
import plugins from './plugins';
const setUpApp = Vue => {
    ......
    hostMap().forEach(v => {
        setupApp({
            ...v,
            plugins: plugins[element.name]
        })
        ......
    })
}

// 主应用
<WujieVue name="xxx" url="xxx" :props="{ data: xxx, methods: xxx }"></WujieVue>

// 子应用
const props = window.$wujie?.props; // {data: xxx, methods: xxx}

// 主应用获取子应用的全局变量数据
window.document.querySelector("iframe[name=子应用id]").contentWindow.xxx;

//子应用获取主应用的全局变量数据
window.parent.xxx;

// 使用 wujie-vue
import WujieVue from"wujie-vue";
const{ bus }= WujieVue;

// 主应用监听事件
bus.$on("事件名字",function(arg1,arg2, ...){});
// 主应用发送事件
bus.$emit("事件名字", arg1, arg2,...);
// 主应用取消事件监听
bus.$off("事件名字",function(arg1,arg2, ...){});

// 子应用监听事件
window.$wujie?.bus.$on("事件名字",function(arg1,arg2, ...){});
// 子应用发送事件
window.$wujie?.bus.$emit("事件名字", arg1, arg2,...);
// 子应用取消事件监听
window.$wujie?.bus.$off("事件名字",function(arg1,arg2, ...){});

// 主应用传参
bus.$emit('matser', options) // 主应用向所有子应用传参
bus.$emit('vite:getOptions', options) // 主应用向指定子应用传参

//子应用监听主应用事件
window?.$wujie?.bus.$on("master", (options) => {
  console.log(options)
});
//子应用监听主应用特定通知子应用事件
window?.$wujie?.bus.$on("vite:getOptions", (options) => {
  console.log(options)
});

jump (location) {
  this.$router.push(location);
}

function handleJump(){
   window.$wujie?.props.jump({ path:"/pathB"});
}

// 子应用A点击跳转处理函数, 子应用B需开启路由同步
function handleJump(){
    window.$wujie?.props.jump({ path:"/pathB", query:{ B:"/test"}});
}

// 子应用 A 点击跳转处理函数
function handleJump() {
  window.$wujie?.bus.$emit("routeChange", "/test");
}

// 子应用 B 监听并跳转
window.$wujie?.bus.$on("routeChange", (path) => this.$router.push({ path }));

主应用
jump(location,query){ 
    // 跳转到主应用B页面
    this.$router.push(location); 
    const url=new URL(window.location.href);
    url.search=query
    // 手动的挂载url查询参数
    window.history.replaceState(null,"",url.href);
}

// 子应用 B 开启路由同步能力


// 子应用A
function handleJump() {
  window.$wujie?.props.jump({ path: "/pathB" } , `?B=${window.encodeURIComponent("/test")}`});
}

// bus.js
// 在 xxx-sub 路由下子应用将激活路由同步给主应用，主应用跳转对应路由高亮菜单栏
  bus.$on('sub-route-change', (name, path) => {
      const mainName = `${name}-sub`;
      const mainPath = `/${name}-sub${path}`;
      const currentName = router.currentRoute.name;
      const currentPath = router.currentRoute.path;
    if (mainName === currentName && mainPath !== currentPath) {
        router.push({ path: mainPath });
      }
  });