角色管理前后端实现

<template>
  <div class="role-manage">
    <div class="query-form">
      <el-form ref="form" :inline="true" :model="queryForm">
        <el-form-item label="角色名称" prop="roleName">
          <el-input v-model="queryForm.roleName" placeholder="请输入角色名称" />
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="getRoleList">查询</el-button>
          <el-button @click="handleReset('form')">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
    <div class="base-table">
      <div class="action">
        <el-button type="primary" @click="handleAdd">创建</el-button>
      </div>
      <el-table :data="roleList">
        <el-table-column
          v-for="item in columns"
          :key="item.prop"
          :prop="item.prop"
          :label="item.label"
          :width="item.width"
          :formatter="item.formatter"
        >
        </el-table-column>
        <el-table-column label="操作" width="260">
          <template #default="scope">
            <el-button size="mini" @click="handleEdit(scope.row)"
              >编辑</el-button
            >
            <el-button
              size="mini"
              type="primary"
              @click="handleOpenPermission(scope.row)"
              >设置权限</el-button
            >
            <el-button
              type="danger"
              size="mini"
              @click="handleDel(scope.row._id)"
              >删除</el-button
            >
          </template>
        </el-table-column>
      </el-table>
      <el-pagination
        class="pagination"
        background
        layout="prev, pager, next"
        :total="pager.total"
        :page-size="pager.pageSize"
        @current-change="handleCurrentChange"
      />
    </div>
    <el-dialog title="用户新增" v-model="showModal">
      <el-form
        ref="dialogForm"
        :model="roleForm"
        label-width="100px"
        :rules="rules"
      >
        <el-form-item label="角色名称" prop="roleName">
          <el-input v-model="roleForm.roleName" placeholder="请输入角色名称" />
        </el-form-item>
        <el-form-item label="备注" prop="remark">
          <el-input
            type="textarea"
            :rows="2"
            v-model="roleForm.remark"
            placeholder="请输入备注"
          />
        </el-form-item>
      </el-form>
      <template #footer>
        <span class="dialog-footer">
          <el-button @click="handleClose">取 消</el-button>
          <el-button type="primary" @click="handleSubmit">确 定</el-button>
        </span>
      </template>
    </el-dialog>
    <!-- 权限弹框-->
    <el-dialog title="权限设置" v-model="showPermission">
      <el-form label-width="100px">
        <el-form-item label="角色名称">
          {{ curRoleName }}
        </el-form-item>
        <el-form-item label="选择权限">
          <el-tree
            ref="tree"
            :data="menuList"
            show-checkbox
            node-key="_id"
            default-expand-all
            :props="{ label: 'menuName' }"
          >
          </el-tree>
        </el-form-item>
      </el-form>
      <template #footer>
        <span class="dialog-footer">
          <el-button @click="showPermission = false">取 消</el-button>
          <el-button type="primary" @click="handlePermissionSubmit"
            >确 定</el-button
          >
        </span>
      </template>
    </el-dialog>
  </div>
</template>
<script>
import utils from "../utils/utils";
export default {
  name: "role",
  data() {
    return {
      queryForm: {
        roleName: "",
      },
      columns: [
        {
          label: "角色名称",
          prop: "roleName",
        },
        {
          label: "备注",
          prop: "remark",
        },
        {
          label: "权限列表",
          prop: "permissionList",
          width: 200,
          formatter: (row, column, value) => {
            let names = [];
            let list = value.halfCheckedKeys || [];
            list.map((key) => {
              let name = this.actionMap[key];
              if (key && name) names.push(name);
            });
            return names.join(",");
          },
        },
        {
          label: "更新时间",
          prop: "updateTime",
          formatter(row, column, value) {
            return utils.formateDate(new Date(value));
          },
        },
        {
          label: "创建时间",
          prop: "createTime",
          formatter(row, column, value) {
            return utils.formateDate(new Date(value));
          },
        },
      ],
      roleList: [],
      pager: {
        total: 0,
        pageNum: 1,
        pageSize: 10,
      },
      showModal: false,
      action: "create",
      roleForm: {},
      rules: {
        roleName: [
          {
            required: true,
            message: "请输入角色角色名称",
          },
        ],
      },
      // 权限展示
      showPermission: false,
      curRoleId: "",
      curRoleName: "",
      menuList: [],
      // 菜单映射表
      actionMap: {},
    };
  },
  mounted() {
    this.getRoleList();
    this.getMenuList();
  },
  methods: {
    // 角色列表初始化
    async getRoleList() {
      try {
        let { list, page } = await this.$api.getRoleList({
          ...this.queryForm,
          ...this.pager,
        });
        this.roleList = list;
        this.pager.total = page.total;
      } catch (e) {
        throw new Error(e);
      }
    },
    // 菜单列表初始化
    async getMenuList() {
      try {
        let list = await this.$api.getMenuList();
        this.menuList = list;
        this.getActionMap(list);
      } catch (e) {
        throw new Error(e);
      }
    },
    // 表单重置
    handleReset(form) {
      this.$refs[form].resetFields();
    },
    // 角色添加
    handleAdd() {
      this.action = "create";
      this.showModal = true;
    },
    // 角色编辑
    handleEdit(row) {
      this.action = "edit";
      this.showModal = true;
      this.$nextTick(() => {
        this.roleForm = {
          _id: row._id,
          roleName: row.roleName,
          remark: row.remark,
        };
      });
    },
    // 角色删除
    async handleDel(_id) {
      await this.$api.roleOperate({ _id, action: "delete" });
      this.$message.success("删除成功");
      this.getRoleList();
    },
    // 弹框关闭
    handleClose() {
      this.handleReset("dialogForm");
      this.showModal = false;
    },
    // 角色提交
    handleSubmit() {
      this.$refs.dialogForm.validate(async (valid) => {
        if (valid) {
          let { roleForm, action } = this;
          let params = { ...roleForm, action };
          let res = await this.$api.roleOperate(params);
          if (res) {
            this.showModal = false;
            this.$message.success("创建成功");
            this.handleReset("dialogForm");
            this.getRoleList();
          }
        }
      });
    },
    handleCurrentChange(current) {
      this.pager.pageNum = current;
      this.getRoleList();
    },
    handleOpenPermission(row) {
      this.curRoleId = row._id;
      this.curRoleName = row.roleName;
      this.showPermission = true;
      let { checkedKeys } = row.permissionList;
      setTimeout(() => {
        this.$refs.tree.setCheckedKeys(checkedKeys);
      });
    },
    async handlePermissionSubmit() {
      let nodes = this.$refs.tree.getCheckedNodes();
      let halfKeys = this.$refs.tree.getHalfCheckedKeys();
      let checkedKeys = [];
      let parentKeys = [];
      nodes.map((node) => {
        if (!node.children) {
          checkedKeys.push(node._id);
        } else {
          parentKeys.push(node._id);
        }
      });
      let params = {
        _id: this.curRoleId,
        permissionList: {
          checkedKeys,
          halfCheckedKeys: parentKeys.concat(halfKeys),
        },
      };
      await this.$api.updatePermission(params);
      this.showPermission = false;
      this.$message.success("设置成功");
      this.getRoleList();
    },
    getActionMap(list) {
      let actionMap = {};
      const deep = (arr) => {
        while (arr.length) {
          let item = arr.pop();
          if (item.children && item.action) {
            actionMap[item._id] = item.menuName;
          }
          if (item.children && !item.action) {
            deep(item.children);
          }
        }
      };
      deep(JSON.parse(JSON.stringify(list)));
      this.actionMap = actionMap;
    },
  },
};
</script>


<style lang="scss">
</style>

role.js

/**
 * 用户管理模块
 */
const router = require('koa-router')()
const Role = require('../models/roleSchema')
const util = require('../utils/util')
const jwt = require('jsonwebtoken')
const md5 = require('md5')
router.prefix('/roles')


// 查询所有角色列表
router.get('/allList', async (ctx) => {
  try {
    const list = await Role.find({}, "_id roleName")
    ctx.body = util.success(list);
  } catch (error) {
    ctx.body = util.fail(`查询失败:${error.stack}`)
  }
})


// 按页获取角色列表
router.get('/list', async (ctx) => {
  const { roleName } = ctx.request.query;
  const { page, skipIndex } = util.pager(ctx.request.query)
  try {
    let params = {}
    if (roleName) params.roleName = roleName;
    const query = Role.find(params)
    const list = await query.skip(skipIndex).limit(page.pageSize)
    const total = await Role.countDocuments(params);
    ctx.body = util.success({
      list,
      page: {
        ...page,
        total
      }
    })
  } catch (error) {
    ctx.body = util.fail(`查询失败：${error.stack}`)
  }
})


// 角色操作：创建、编辑和删除
router.post('/operate', async (ctx) => {
  const { _id, roleName, remark, action } = ctx.request.body;
  let res, info;
  try {
    if (action == 'create') {
      res = await Role.create({ roleName, remark })
      info = "创建成功"
    } else if (action == 'edit') {
      if (_id) {
        let params = { roleName, remark }
        params.update = new Date();
        res = await Role.findByIdAndUpdate(_id, params)
        info = "编辑成功"
      } else {
        ctx.body = util.fail("缺少参数params: _id")
        return;
      }
    } else {
      if (_id) {
        res = await Role.findByIdAndRemove(_id)
        info = "删除成功"
      } else {
        ctx.body = util.fail("缺少参数params: _id")
        return;
      }
    }
    ctx.body = util.success(res, info)
  } catch (error) {
    ctx.body = util.fail(error.stack)
  }
})


// 权限设置
router.post('/update/permission', async (ctx) => {
  const { _id, permissionList } = ctx.request.body;
  try {
    let params = { permissionList, update: new Date() }
    let res = await Role.findByIdAndUpdate(_id, params)
    ctx.body = util.success('', "权限设置成功")
  } catch (error) {
    ctx.body = util.fail("权限设置失败")
  }
})
module.exports = router;