例子：用户

请求格式

返回数据类型

{
    "code": 200,
    "message": "获取所有用户成功",
    "total": 19,
    "totalPages": 2,
    "currentPage": 1,
    "data": [
        {
            "id": 1,
            "username": "ljz",
            "avatar": "https://wpimg.wallstcn.com/f778738c-e4f8-4870-b634-56703b4acafe.gif",
            "realname": "卢浩辰",
            "gender": "meal",
            "age": 18,
            "email": "255677899@qq.com",
            "userId": 1,
            "status": 0,
            "created_time": "2023-10-27T16:19:25.000Z",
            "update_time": "2023-11-02T12:08:47.000Z"
        }
    ]
}

设置返回数据类型

//定义获取全部用户数据类型
export interface allUser {
  id: number
  avatar: string
  username: string
  gender: string
  age: number
  email: string
  userId: number
  created_time: string
  code: number
}
export interface allUserReponseData {
  code: number
  message: string
  total: number
  totalPages: number
  currentPage: number
  data: allUser[]
}

属性

首先我们先要了解分页器的属性

v-model:current-page当前页码

v-model:page-size设置每页展示数据的条数

page-sizes每页显示个数选择器的个数

small是否使用小型分页样式

disabled 是否禁用分页

background 是否为分页按钮添加背景色

total 总条目数

layout 组件布局，子组件名用逗号分隔

size-change下拉菜单发生变化的时候

current-change当前页面发生改变事件

需求

需求：当每页显示条数发生变化时，页数（数据足够）可能还在当前页，或者最后一页（数据不够）

需求：当每页显示条数发生变化时，页数回归第一页

页面代码

<script setup lang="ts">
import { onMounted, ref } from 'vue'
import { reqAllUser } from '@/api/user/index'
import type { allUser, allUserReponseData } from '@/api/user/type'
const userData = ref<allUser[]>([])
//分页器当前页码
const page = ref<number>(1)
//每一页展示几条数据
const pageSize = ref<number>(10)
const total = ref<number>(0)
//处理分页模块
const handleSizeChange = () => {
  getAllUser()
}
//处理分页模块结束
//获取所有用户模块
const getAllUser = async (pager = 1) => {
  page.value = pager
  const res: allUserReponseData = await reqAllUser(page.value, pageSize.value)
  console.log(res, '111')
  if (res.code == 200) {
    total.value = res.total
    userData.value = res.data
  }
}
onMounted(() => {
  //获取所有用户模块
  getAllUser()
})
</script>

<template>
  <div class="card">
    <el-card class="box-card">
      <el-form :inline="true" class="form">
        <el-form-item label="用户名">
          <el-input placeholder="请你搜索用户名" />
        </el-form-item>
        <el-form-item>
          <el-button type="primary">搜索</el-button>
          <el-button type="primary" plain>重置</el-button>
        </el-form-item>
      </el-form>
    </el-card>
    <el-card style="margin: 10px 0">
      <!-- 添加按钮 -->
      <el-button type="primary" size="default">添加</el-button>
      <el-button type="danger" size="default">批量删除</el-button>
      <!-- 表格 -->
      <el-table :data="userData" style="margin-top: 10px">
        <el-table-column type="selection" width="80px" align="center" />
        <el-table-column prop="id" label="id" width="80px" align="center" />
        <el-table-column prop="username" label="用户名字" width="120px" align="center" />
        <el-table-column prop="avatar" label="用户头像" width="120px" align="center">
          <template #default="scope">
            <img :src="scope.row.avatar" style="width: 36px; margin: 0px 10px" alt="加载失败" />
          </template>
        </el-table-column>
        <el-table-column prop="gender" label="用户性别" width="120px" align="center" />
        <el-table-column prop="age" label="用户年龄" align="center" />
        <el-table-column prop="email" label="用户邮箱" align="center" />
        <el-table-column fixed="right" label="操作" width="180">
          <template #default>
            <el-button link type="primary" size="small">Detail</el-button>
            <el-button link type="primary" size="small">Edit</el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页按钮 -->
      <!-- v-model:current-page当前页码 
              v-model:page-size设置每页展示数据的条数
              page-sizes每页显示个数选择器的个数
              small是否使用小型分页样式
              disabled 是否禁用分页
          -->
      <el-pagination
        v-model:current-page="page"
        v-model:page-size="pageSize"
        :page-sizes="[3, 5, 7, 9]"
        :small="false"
        :disabled="false"
        :background="false"
        layout="  prev, pager, next, jumper,->,sizes, total"
        :total="total"
        @size-change="handleSizeChange"
        @current-change="getAllUser"
      />
    </el-card>
  </div>
</template>

<style scoped lang="scss">
.form {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
</style>