电商后台管理系统权限管理角色列表的分配权限

深碍√TFBOYSˉ_ 2021-07-24 12:05 471阅读 0赞

# 一 代码 #

## 1 修改 Roles.vue ##

<template>
        <div>
            
            <el-breadcrumb separator-class="el-icon-arrow-right">
                <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
                <el-breadcrumb-item>权限管理</el-breadcrumb-item>
                <el-breadcrumb-item>角色列表</el-breadcrumb-item>
            </el-breadcrumb>
            
            <el-card>
                
                <el-row>
                    <el-col>
                        <el-button type="primary" @click="AddRoleDialogVisible=true">添加角色</el-button>
                    </el-col>
                </el-row>
                
                <el-table :data="rolesList" border stripe>
                    
                    <el-table-column type="expand">
                        <template slot-scope="scope">
                            <el-row :class="['bdbottom',i1 === 0 ?'bdtop':'']" v-for="(item1,i1) in scope.row.children"
                                    :key="item1.id">
                                
                                <el-col :span="5">
                                    <el-tag closable
                                            @close="removeRightById(scope.row,item1.id)">{
       {item1.authName}}
                                    </el-tag>
                                    <i class="el-icon-caret-right"></i>
                                </el-col>
                                
                                <el-col :span="19">
                                    
                                    <el-row :class="[i2 !== 0 ?'bdtop':'']" v-for="(item2,i2) in item1.children"
                                            :key="item2.id">
                                        
                                        <el-col :span="6">
                                            <el-tag type="success" closable
                                                    @close="removeRightById(scope.row,item2.id)">{
       {item2.authName}}
                                            </el-tag>
                                            <i class="el-icon-caret-right"></i>
                                        </el-col>
                                        
                                        <el-col :span="18">
                                            <el-tag type="warning" v-for="(item3,i3) in item2.children" :key="item3.id"
                                                    closable
                                                    @close="removeRightById(scope.row,item3.id)">
                                                {
       {item3.authName}}
                                            </el-tag>
                                        </el-col>
                                    </el-row>
                                </el-col>
                            </el-row>
                        </template>
                    </el-table-column>
                    
                    <el-table-column type="index"></el-table-column>
                    <el-table-column label="角色名称" prop="roleName"></el-table-column>
                    <el-table-column label="角色描述" prop="roleDesc"></el-table-column>
                    <el-table-column label="操作">
                        <template slot-scope="scope">
                            <el-button size="mini" type="primary" icon="el-icon-edit" @click="showEditDialog(scope.row.id)">
                                编辑
                            </el-button>
                            <el-button size="mini" type="danger" icon="el-icon-delete"
                                       @click="removeRoleById(scope.row.id)">删除
                            </el-button>
                            <el-button size="mini" type="warning" icon="el-icon-setting"
                                       @click="showSetRightDialog(scope.row)">分配权限
                            </el-button>
                        </template>
                    </el-table-column>
                </el-table>
            </el-card>
            
            <el-dialog title="添加角色" :visible.sync="AddRoleDialogVisible" width="40%" @close="addRoleDialogClosed">
                <el-form
                        :model="addRoleForm"
                        ref="addRoleFormRef"
                        :rules="addRoleFormRules"
                        label-width="100px">
                    <el-form-item label="角色名称" prop="roleName">
                        <el-input v-model="addRoleForm.roleName"></el-input>
                    </el-form-item>
                    <el-form-item label="角色描述" prop="roleDesc">
                        <el-input v-model="addRoleForm.roleDesc"></el-input>
                    </el-form-item>
                </el-form>
                <span slot="footer" class="dialog-footer">
            <el-button @click="AddRoleDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="addRoles">确 定</el-button>
          </span>
            </el-dialog>
            
            <el-dialog title="编辑角色" :visible.sync="editRoleDialogVisible" width="40%" @close="addRoleDialogClosed">
                <el-form
                        :model="editRoleForm"
                        ref="editRoleFormRef"
                        :rules="editRoleFormRules"
                        label-width="100px">
                    <el-form-item label="角色名称" prop="roleName">
                        <el-input v-model="editRoleForm.roleName"></el-input>
                    </el-form-item>
                    <el-form-item label="角色描述" prop="roleDesc">
                        <el-input v-model="editRoleForm.roleDesc"></el-input>
                    </el-form-item>
                </el-form>
                <span slot="footer" class="dialog-footer">
                    <el-button @click="editRoleDialogVisible = false">取 消</el-button>
                    <el-button type="primary" @click="editRoles">确 定</el-button>
                </span>
            </el-dialog>
            
            <el-dialog
                    title="分配权限"
                    :visible.sync="setRightDialogVisible"
                    width="50%"
                    @close="setRightDialogClosed">
                
                <el-tree :data="rightsList" :props="treeProps" show-checkbox node-key="id"
                         default-expand-all
                         :default-checked-keys="defKeys"
                         ref="treeRef">
                </el-tree>
                <span slot="footer" class="dialog-footer">
                    <el-button @click="setRightDialogVisible = false">取 消</el-button>
                    <el-button type="primary" @click="allotRights">确 定</el-button>
                </span>
            </el-dialog>
        </div>
    </template>
    
    
    <script>
        export default {
            name: "Roles",
            data() {
                return {
                    // 所有角色列表数据
                    rolesList: [],
                    // 添加角色对话框
                    AddRoleDialogVisible: false,
                    // 添加角色表单
                    addRoleForm: {},
                    // 添加角色表单验证
                    addRoleFormRules: {
                        roleName: [
                            {required: true, message: '请输入角色名称', trigger: 'blur'}
                        ],
                        roleDesc: [
                            {required: true, message: '请输入角色描述', trigger: 'blur'}
                        ]
                    },
                    // 编辑角色信息
                    editRoleForm: {},
                    editRoleDialogVisible: false,
                    editRoleFormRules: {
                        roleName: [
                            {required: true, message: '请输入角色名称', trigger: 'blur'}
                        ],
                        roleDesc: [
                            {required: true, message: '请输入角色描述', trigger: 'blur'}
                        ]
                    },
                    // 控制分配权限对话框的显示与隐藏
                    setRightDialogVisible: false,
                    // 所有权限的数据
                    rightsList: [],
                    // 树形控件的属性绑定对象
                    treeProps: {
                        label: 'authName',
                        children: 'children'
                    },
                    // 默认选中的节点Id值数组
                    defKeys: [],
                    // 当前即将分配权限的角色id
                    roleId: ''
                }
            },
            created() {
                this.getRolesList()
            },
            methods: {
                // 获取所有角色列表
                async getRolesList() {
                    const {data: res} = await this.$http.get('roles')
                    if (res.meta.status !== 200) {
                        return this.$message.error("获取角色列表失败！")
                    }
                    this.rolesList = res.data
    
    
                },
                // 添加角色对话框的关闭
                addRoleDialogClosed() {
                    this.$refs.addRoleFormRef.resetFields()
                },
                // 添加角色
                addRoles() {
                    this.$refs.addRoleFormRef.validate(async valid => {
                        if (!valid) return
                        const {data: res} = await this.$http.post('roles', this.addRoleForm)
                        if (res.meta.status !== 201) {
                            this.$message.error('添加角色失败！')
                        }
                        this.$message.success('添加角色成功！')
                        this.AddRoleDialogVisible = false
                        this.getRolesList()
                    })
                },
                // 删除角色
                async removeRoleById(id) {
                    const confirmResult = await this.$confirm(
                        '此操作将永久删除该角色, 是否继续?',
                        '提示',
                        {
                            confirmButtonText: '确定',
                            cancelButtonText: '取消',
                            type: 'warning'
                        }
                    ).catch(err => err)
                    if (confirmResult !== 'confirm') {
                        return this.$message.info('已取消删除')
                    }
                    const {data: res} = await this.$http.delete('roles/' + id)
                    if (res.meta.status !== 200) return this.$message.error('删除角色失败！')
                    this.$message.success('删除用户成功！')
                    this.getRolesList()
                },
                // 编辑角色
                async showEditDialog(id) {
                    const {data: res} = await this.$http.get('roles/' + id)
                    if (res.meta.status !== 200) return this.$message.error('查询角色信息失败！')
                    this.editRoleForm = res.data
                    this.editRoleDialogVisible = true
                },
                editRoles() {
                    this.$refs.editRoleFormRef.validate(async valid => {
                        // 表单预校验失败
                        if (!valid) return
                        const {data: res} = await this.$http.put(
                            'roles/' + this.editRoleForm.roleId,
                            {
                                roleName: this.editRoleForm.roleName,
                                roleDesc: this.editRoleForm.roleDesc
                            }
                        )
                        if (res.meta.status !== 200) {
                            this.$message.error('更新角色信息失败！')
                        }
                        // 隐藏编辑角色对话框
                        this.editRoleDialogVisible = false
                        this.$message.success('更新角色信息成功！')
                        this.getRolesList()
                    })
                },
                /* 根据id 删除对应的权限*/
                async removeRightById(role, rightId) {
                    // 弹框提示用户是否要删除
                    const confirmResult = await this.$confirm('此操作将永久删除该权限, 是否继续?', '提示', {
                        confirmButtonText: '确定',
                        cancelButtonText: '取消',
                        type: 'warning'
                    }).catch(err => err)
                    if (confirmResult !== 'confirm') {
                        return this.$message.info('取消了删除')
                    }
    
    
                    const {data: res} = await this.$http.delete(`roles/${role.id}/rights/${rightId}`)
                    if (res.meta.status !== 200) {
                        return this.$message.error('权限删除失败')
                    }
                    role.children = res.data
                },
                /* 展示分配权限对话框 */
                async showSetRightDialog(role) {
                    this.roleId = role.id
                    // 获取所有权限数据
                    const {data: res} = await this.$http.get('rights/tree')
                    if (res.meta.status !== 200) {
                        return this.$message.error('获取权限数据失败')
                    }
                    // 获取到的权限数据
                    this.rightsList = res.data
                    // 获得三级节点的id
                    this.getLeafKeys(role, this.defKeys)
                    this.setRightDialogVisible = true;
                },
                // 通过递归的形式，获得角色下所有三级权限的id，并保存到 defkeys 数组中
                getLeafKeys(node, arr) {
                    // 如果当前 node 节点不包含children 属性，则是三级节点
                    if (!node.children) {
                        return arr.push(node.id)
                    }
                    node.children.forEach(item => this.getLeafKeys(item, arr))
    
    
                },
                // 监听分配权限对话框关闭事件
                setRightDialogClosed() {
                    this.defKeys = []
                },
                // 为角色分配权限
                async allotRights() {
                    const keys = [
                        ...this.$refs.treeRef.getCheckedKeys(),
                        ...this.$refs.treeRef.getHalfCheckedKeys()
                    ]
                    const idstr = keys.join(',')
                    const {data:res} = await this.$http.post(`roles/${this.roleId}/rights`,
                        {rids: idstr})
                    if(res.meta.status !==200){
                        return this.$message.error('分配权限失败')
                    }
    
    
                    this.$message.success('分配权限成功')
                    this.getRolesList()
                    this.setRightDialogVisible = false
    
    
                }
            }
        }
    </script>
    
    
    <style scoped>
    
    
    </style>

## 2  注册组件 element.js ##

import Vue from 'vue'
    // 按需分配各个组件
    import {
        Button,
        Form,
        FormItem,
        Input,
        Message,
        Container,
        Header,
        Aside,
        Main,
        Menu,
        Submenu,
        MenuItem,
        Breadcrumb,
        BreadcrumbItem,
        Card,
        Row,
        Col,
        Table,
        TableColumn,
        Switch,
        Tooltip,
        Pagination,
        Dialog,
        MessageBox,
        Tag,
        Tree
    } from 'element-ui'
    
    
    Vue.use(Button)
    Vue.use(Form)
    Vue.use(FormItem)
    Vue.use(Input)
    Vue.use(Container)
    Vue.use(Header)
    Vue.use(Aside)
    Vue.use(Main)
    Vue.use(Menu)
    Vue.use(Submenu)
    Vue.use(MenuItem)
    Vue.use(Breadcrumb)
    Vue.use(BreadcrumbItem)
    Vue.use(Card)
    Vue.use(Row)
    Vue.use(Col)
    Vue.use(Table)
    Vue.use(TableColumn)
    Vue.use(Switch)
    Vue.use(Tooltip)
    Vue.use(Pagination)
    Vue.use(Dialog)
    Vue.use(Tag)
    Vue.use(Tree)
    // 这里和其他组件不一样，需要通过 prototype 全局挂载 Message
    Vue.prototype.$message = Message
    Vue.prototype.$confirm = MessageBox.confirm

# 二 测试 #

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70][]

# 三 源码参考 #

[https://gitee.com/cakin24/vue\_shop][https_gitee.com_cakin24_vue_shop]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70]: /images/20210724/2c1e655e0193484e8ecf66aee393260c.png
[https_gitee.com_cakin24_vue_shop]: https://gitee.com/cakin24/vue_shop