vue权限管理——按钮控制_vue 权限控制按钮 是否跳转

1.按钮根据后端返回数据决定展示与否

根据right中的数据对应增删改查按钮

const menuList = [
    {'id': 1, path:'/uploadSpec','authName': "上传spec", icon: 'User', children:[], rights:['view','add','edit','delete']},
    {'id': 2, path:'/showSpec', 'authName': "Spec预览", icon: 'DataAnalysis',children:[], rights:['view','add','edit','delete']},
    {'id': 3, path:'/generateTxt', 'authName': "生成测试数据", icon: 'DataAnalysis',children:[], rights:['view','add','edit','delete']},
    {'id': 4, path:'/generateCronjob', 'authName': "生成转码程序", icon: 'Promotion',children:[], rights:['view','add','edit','delete']},
    {'id': 5, path:'/pdfCompare', 'authName': "PDF文档对比", icon: 'DocumentCopy',children:[], rights:['view','add','edit','delete']},
    {'id': 6, path:'/resourceUpdate', 'authName': "资源更新管理", icon: 'Management',children:[], rights:['view','add','edit','delete']},
    {'id': 7, path:'/generateTestCase', 'authName': "自动生成ST/SIT案例", icon: 'Files',children:[], rights:['view','add','edit','delete']},
    {'id': 8, path:'/userManagement', 'authName': "用户管理", icon: 'User', rights:['view']},
    {'id': 9, path:'/roleManagement', 'authName': "角色管理", icon: 'Stamp', rights:['view']},
]

2.在设置动态路由时，将rights权限数据设置到路由元数据中meta

 initDynamicRoutes给用户对应的router中动态添加meta元数据后，permission.js中通过router.currentRoute就可以获取

export const initDynamicRoutes = async () => {
    const menuList = Store.state.user.menuList;;
    const rights = Store.state.user.rights;;
 
    menuList.length > 0 && menuList.forEach(item => {
        if (item.path) {
            const temp = routeMapping[item.path];
            // 动态添加rights到meta中，使用自定义指令时通过rights鉴别其是否有该权限
            temp.meta.rights = item.rights;
            router.addRoute("Home", temp);
        }
    });
    router.addRoute({ name: 'NotFound', path: '/404', title: "页面不存在", component: NotFound });
    router.addRoute({ path: '/:pathMatch(.*)', redirect: '/404' });
}

3.按钮上通过自定义指令控制

directives/permission.js

获取路由元数据中的rights权限和按钮上的action记录权限做比较：如果包含则有该权限，否则无权限，进行删除元素或者设置disabled

import router from "@/route/route"
import { nextTick } from 'vue'
 
export const vHas = {
    created(el, binding, vnode, prevVnode) {
        let metaRights = router.currentRoute.value.meta.rights;
        let action = binding.value.action;
        let effect = binding.value.effect;
 
        if (!metaRights.includes(action)) {
            // 注意要使用nextTick，才能立即修改DOM
            nextTick(() => {
                if (effect === "disabled") {
                    el.ariaDisabled = 'true';
                    el.classList.add('is-disabled')
                } else {
                    if (el.parentNode)
                        el.parentNode.removeChild(el)
                    else
                        el.remove();
                }
            });
        }
    }
}

4.页面中使用v-has指令

<template>
<div>
    <el-button type="primary" v-has="{action:'add',effect:'disabled'}">增加角色</el-button>
    <el-button type="success" v-has="{action:'edit'}">修改角色</el-button>
    <el-button type="info" v-has="{action:'view'}">查看角色</el-button>
    <el-button type="warning" v-has="{action:'delete',effect:'disabled'}">删除角色</el-button>
</div>
   
</template>
<script setup>
import { vHas } from "@/directives/permission"
 
</script>