第一步

import Cookies from "js-cookie";//将需要的信息放入cookie
Cookies.set("deptId", res.user.dept.deptId, { expires: 30 });

引入cookies

import Cookies from "js-cookie";// 查询参数queryParams: {deptName: undefined,status: undefined,deptId: undefined//从cookies中获取参数created() {this.deptId = Cookies.get("deptId");this.getList();},//后端发送请求携带参数methods: {/** 查询企业列表 */getList() {this.loading = true;this.queryParams.deptId= this.deptId;deptList(this.queryParams).then(response => {this.deptList = this.handleTree(response.data, "deptId");this.loading = false;});},