1.在plugins/element.js中按需引入element组件

import Vue from 'vue'
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
} 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.prototype.$message = Message
Vue.prototype.$confirm = MessageBox.confirm

2.使用

​
<!--
 * @Author: your name
 * @Date: 2020-06-17 11:31:14
 * @LastEditTime: 2020-06-19 06:31:37
 * @LastEditors: Please set LastEditors
 * @Description: In User Settings Edit
 * @FilePath: \vue_shop\src\components\user\Users.vue
-->
<style lang="less" scoped>
.Users {
  .el-breadcrumb {
    margin-bottom: 15px;
    font-size: 12px;
  }
  .el-card {
    box-shadow: 0 1px 1px rgba(0, 0, 0, 0.15);
  }
  .el-table {
    margin-top: 15px;
    font-size: 12px;
  }
  .el-pagination {
    margin-top: 15px;
  }
}
</style>
<template>
  <div class="Users">
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片试图区域 -->
    <el-card>
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="7">
          <!-- 搜索与添加区域 -->
          <el-input placeholder="请输入内容"
                    clearable
                    @clear="getUserList"
                    v-model="queryInfo.query">
            <el-button slot="append"
                       icon="el-icon-search"
                       @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary"
                     @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userlist"
                border
                stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名"
                         prop="username"></el-table-column>
        <el-table-column label="邮箱"
                         prop="email"></el-table-column>
        <el-table-column label="电话"
                         prop="mobile"></el-table-column>
        <el-table-column label="角色"
                         prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state"
                       @change="userStateChanged(scope.row)">
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作"
                         width="180">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button type="primary"
                       icon="el-icon-edit"
                       size="mini"
                       @click="showEditDialog(scope.row.id)"></el-button>
            <!-- 删除按钮 -->
            <el-button type="danger"
                       icon="el-icon-delete"
                       size="mini"
                       @click="removeUserById(scope.row.id)"></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip effect="dark"
                        content="分配角色"
                        placement="top"
                        :enterable="false">
              <el-button type="warning"
                         icon="el-icon-setting"
                         size="mini"></el-button>
            </el-tooltip>

          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination @size-change="handleSizeChange"
                     @current-change="handleCurrentChange"
                     :current-page="queryInfo.pagenum"
                     :page-sizes="[1, 2, 5, 10]"
                     :page-size="queryInfo.pagesize"
                     layout="total, sizes, prev, pager, next, jumper"
                     :total="total">
      </el-pagination>
    </el-card>
    <!-- 添加用户对话框 -->
    <el-dialog title="添加用户"
               :visible.sync="addDialogVisible"
               width="50%"
               @close="addDialogClosed">
      <!-- 内容主题区域 -->
      <el-form ref="addFormRef"
               :model="addForm"
               label-width="70px"
               :rules="addFormRules">
        <el-form-item label="用户名"
                      prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码"
                      prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱"
                      prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机"
                      prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer"
            class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary"
                   @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 修改用户的对话框 -->
    <el-dialog title="修改用户"
               :visible.sync="editDialogVisible"
               width="50%"
               @close="editDialogClosed">
      <el-form ref="editFormRef"
               :model="editForm"
               label-width="70px"
               :rules="editFormRule">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username"
                    disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱"
                      prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号"
                      prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer"
            class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary"
                   @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  name: 'Users',
  mixins: [],
  components: {},
  props: {},
  data () {
    // 验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        // 合法的邮箱
        return cb()
      }
      cb(new Error('请输入合法的邮箱'))
    }
    // 验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      // 验证手机号的正则表达式
      const regMobile = /^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)) {
        // 合法的手机号
        return cb()
      }
      cb(new Error('请输入合法的手机号'))
    }
    return {
      queryInfo: {
        query: '',
        // 当前的页数
        pagenum: 1,
        pagesize: 2
      },
      userlist: [],
      total: 0,
      // 控制用户对话框的显示和隐藏
      addDialogVisible: false,
      // 添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '用户名的长度在3~10个之间', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '用户名的长度在6~15个之间', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail }
        ],
        mobile: [
          { required: true, message: '请输入手机', trigger: 'blur' },
          { validator: checkMobile }
        ]
      },
      // 控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      // 查询到的用户信息对象
      editForm: {},
      // 修改表单项的验证规则
      editFormRule: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail }
        ],
        mobile: [
          { required: true, message: '请输入手机', trigger: 'blur' },
          { validator: checkMobile }
        ]
      }
    }
  },
  watch: {},
  computed: {},
  methods: {
    async getUserList () {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error('获取用户列表失败！')
      this.userlist = res.data.users
      this.total = res.data.total
    },
    // 展示编辑用户的对话框
    async showEditDialog (id) {
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) return this.$message.error('查询用户信息失败！')
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 监听switch开关状态的改变
    async userStateChanged (userinfo) {
      const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      return this.$message.success('更新用户状态成功!')
    },
    // 监听pagesize改变的事件
    handleSizeChange (newSize) {
      // console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听页码值改变的事件
    handleCurrentChange (newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听添加用户对话框
    addDialogClosed () {
      this.$refs.addFormRef.resetFields()
    },
    // 点击按钮添加新用户
    addUser () {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        // 可以发起添加用户的网络请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta !== 201) {
          this.$message.error('添加用户失败！')
        }
        this.$message.success('添加用户成功！')
        // 隐藏添加用户的对话框
        this.addDialogVisible = false
        // 重新获取用户列表数据
        this.getUserList()
      })
    },
    // 监听编辑用户对话框
    editDialogClosed () {
      this.$refs.editFormRef.resetFields()
    },
    // 修改用户信息并提交
    editUserInfo () {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        // 提交编辑用户的网络请求
        const { data: res } = await this.$http.put('users/' + this.editForm.id, {
          email: this.editForm.email,
          mobile: this.editForm.mobile
        })
        if (res.meta.status !== 200) {
          this.$message.error('更新用户信息失败！')
        }
        this.$message.success('更新用户信息成功！')
        // 关闭对话框
        this.editDialogVisible = false
        // 重新获取用户列表数据
        this.getUserList()
      })
    },
    // 根据id删除对应的用户信息
    async removeUserById (id) {
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning',
        center: true
      }).catch(err => err)
      // 如果用户确认删除，则返回值为字符串 confirm
      // 如果用户取消了删除，则返回值为字符串 cancel
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除用户失败！')
      }
      this.$message.success('删除用户成功！')
      this.getUserList()
    }
  },
  created () {
    this.getUserList()
  },
  mounted () { }
}
</script>

​