django rest_framework vue 实现用户列表分页

时间：2024-06-08 23:35:08

django rest_framework vue 实现用户列表分页

后端

配置urls

# 导入view

from api.appview.userListView import userListView

# 增加url配置

urlpatterns = [

    ...

    url(r'^home/userlist/$', userListView.as_view()), # 用户列表

]

编写视图

# FileName : userListView.py

# Author   : Adil

# DateTime : 2019/8/2 1:46 PM

# SoftWare : PyCharm

from api import models

from django.http import JsonResponse

from rest_framework.views import APIView

from api.models import User

from api.utils.auth import Authentication

from api.common.PageHandle import MyLimitOffsetPagination

from rest_framework import serializers

class userListView(APIView):

    authentication_classes = [Authentication]   #  添加认证

    permission_classes = []      # 不尽兴权限控制

    def get(self,request,*args,**kwargs):

        # user1 = models.User.objects.all()

        #

        # print(user1)  # <QuerySet [<User: username: wang,password: 123456>,...

        # userInfoList = models.User.objects.values()

        # print('^^^^^')

        # for userlist in userInfoList:

        #

        #     # userlist = model_to_dict(userlist)

        #     print(type(userlist))

        #     print(userlist)

        # print(type(userInfoList))

        # print("!!!!!")

        # userInfoList = model_to_dict(userInfoList)

        #

        # print(type(userInfoList))

        # print(userInfoList)   #  <QuerySet [{'id': 1, 'username': 'wang', 'password': '123456', 'age': '20', 'e_mail': '272981562@qq.com', 'user_type': 2, 'create_time': datetime.datetime(2019, 7, 30, 21, 16, 12, 301365), 'update_time': datetime.datetime(2019, 7, 30, 21, 16, 12, 301396)}, {'id': 2, ...

        # for userList in userInfoList:

        #     #print(userList)

        # users = models.User.objects.values_list()

        # print("8***")

        # print(users)  # <QuerySet [(1, 'wang', '123456', '20', '272981562@qq.com', 2, datetime.datetime(2019, 7, 30, 21, 16, 12, 301365), datetime.datetime(2019, 7, 30, 21, 16, 12, 301396)), (2, 'yang', '....

        # for user in users:

        #     print(user)

        userInfoList = models.User.objects.values()print(userInfoList)

        ret = {'code': 1000, 'msg': None, 'data': None,'lens':None}

        try:

            ret['msg'] = '成功'

            ret['data'] = list(userInfoList)
　　　　　　　ret['lens'] = len(userInfoList)

        except Exception as e:

            ret['code'] = 1001

            ret['msg'] = '失败'

        return (JsonResponse(ret))

        # return (page.get_paginated_response(roles_ser.data))
 

至此完成后端code。

查看接口返回

django rest_framework vue 实现用户列表分页

可以看到此时返回的是查询所有结果，有21条数据。

django rest_framework vue 实现用户列表分页

可以看到 这样返回的结果是21条数据，而不能分页展示。

下面介绍一下分页功能

创建分页类

# FileName : PageHandle.py

# Author   : Adil

# DateTime : 2019/8/5 4:33 PM

# SoftWare : PyCharm

#logintest/api/common/PageHandle.py

from rest_framework.pagination import LimitOffsetPagination,PageNumberPagination

class MyLimitOffsetPagination(PageNumberPagination):

    # 每页显示多少个

    page_size = 3

    # 默认每页显示3个，可以通过传入pager1/?currentPage=2&pageSize=4,改变默认每页显示的个数

    page_size_query_param = "pageSize"

    # 最大页数不超过10

    max_page_size = 100

    # 获取页码数的

    page_query_param = "currentPage"

# default_limit：表示默认每页显示几条数据

# limit_query_param：表示url中本页需要显示数量参数

# offset_query_param：表示从数据库中的第几条数据开始显示参数

# max_limit：表示每页最大显示数量，做限制使用，避免突然大量的查询数据，数据库崩溃

view 增加分页代码  方式一

        # 增加分页

        userInfoList = models.User.objects.values().order_by('id')

        print(userInfoList)

        page = MyLimitOffsetPagination()

        print(page)

        page_roles = page.paginate_queryset(queryset=userInfoList, request=request, view=self)

        print(page_roles)

        roles_ser = PagerSerializer(instance=page_roles, many=True)

        print(roles_ser.data)

        # return Response(roles_ser.data)  # 只返回数据

        # return page.get_paginated_response(roles_ser.data)  # 返回前后夜url

        ret = {'code': 1000, 'msg': None, 'data': None,'lens':None}

        try:

            ret['msg'] = '成功'

            ret['data'] = list(page_roles)

            print(len(page_roles))

            print(len(userInfoList))

            ret['lens'] = len(userInfoList)

        except Exception as e:

            ret['code'] = 1001

            ret['msg'] = '失败'

        return (JsonResponse(ret))

这是请求相应如下

django rest_framework vue 实现用户列表分页

方式二

# userlistView.py

创建类

class PagerSerializer(serializers.ModelSerializer):

    class Meta:

        model = User

        fields = "__all__"

直接上代码

# FileName : userListView.py

# Author   : Adil

# DateTime : 2019/8/2 1:46 PM

# SoftWare : PyCharm

from api import models

from django.http import JsonResponse

from rest_framework.views import APIView

from api.models import User

from api.utils.auth import Authentication

from api.common.PageHandle import MyLimitOffsetPagination

from rest_framework import serializers

class PagerSerializer(serializers.ModelSerializer):

    class Meta:

        model = User

        fields = "__all__"

class userListView(APIView):

    authentication_classes = [Authentication]   #  添加认证

    permission_classes = []      # 不尽兴权限控制

    def get(self,request,*args,**kwargs):

        # user1 = models.User.objects.all()

        #

        # print(user1)  # <QuerySet [<User: username: wang,password: 123456>,...

        # userInfoList = models.User.objects.values()

        # print('^^^^^')

        # for userlist in userInfoList:

        #

        #     # userlist = model_to_dict(userlist)

        #     print(type(userlist))

        #     print(userlist)

        # print(type(userInfoList))

        # print("!!!!!")

        # userInfoList = model_to_dict(userInfoList)

        #

        # print(type(userInfoList))

        # print(userInfoList)   #  <QuerySet [{'id': 1, 'username': 'wang', 'password': '123456', 'age': '20', 'e_mail': '272981562@qq.com', 'user_type': 2, 'create_time': datetime.datetime(2019, 7, 30, 21, 16, 12, 301365), 'update_time': datetime.datetime(2019, 7, 30, 21, 16, 12, 301396)}, {'id': 2, ...

        # for userList in userInfoList:

        #     #print(userList)

        # users = models.User.objects.values_list()

        # print("8***")

        # print(users)  # <QuerySet [(1, 'wang', '123456', '20', '272981562@qq.com', 2, datetime.datetime(2019, 7, 30, 21, 16, 12, 301365), datetime.datetime(2019, 7, 30, 21, 16, 12, 301396)), (2, 'yang', '....

        # for user in users:

        #     print(user)

        # 增加分页

        userInfoList = models.User.objects.values().order_by('id')

        print(userInfoList)

        page = MyLimitOffsetPagination()

        print(page)

        page_roles = page.paginate_queryset(queryset=userInfoList, request=request, view=self)

        print(page_roles)

        roles_ser = PagerSerializer(instance=page_roles, many=True)

        print(roles_ser.data)

        # return Response(roles_ser.data)  # 只返回数据

        # return page.get_paginated_response(roles_ser.data)  # 返回前后夜url

        ret = {'code': 1000, 'msg': None, 'data': None,'lens':None}

        try:

            ret['msg'] = '成功'

            ret['data'] = list(page_roles)

            print(len(page_roles))

            print(len(userInfoList))

            ret['lens'] = len(userInfoList)

        except Exception as e:

            ret['code'] = 1001

            ret['msg'] = '失败'

            # return (JsonResponse(ret))

        return (page.get_paginated_response(roles_ser.data))

前端

前端预期

django rest_framework vue 实现用户列表分页

添加router

import userlist from '@/components/userlist'

Vue.use(Router)

var router =  new Router({

  routes: [

    {

      path: '/userlist',

      name: 'userlist',

      component: userlist

    },

新建userlist.vue，里面有两种方式处理后端返回。

<template>

<el-container style="height: 100%; border: 1px solid #eee">

  <el-aside width="200px" style="background-color: rgb(238, 241, 246)">

    <el-menu :default-openeds="['1', '3']">

      <el-submenu index="">

        <template slot="title"><i class="el-icon-message"></i>导航一</template>

        <el-menu-item-group>

          <template slot="title">分组一</template>

          <el-menu-item index="1-1">选项1</el-menu-item>

          <el-menu-item index="1-2">选项2</el-menu-item>

        </el-menu-item-group>

        <el-menu-item-group title="分组2">

          <el-menu-item index="1-3">选项3</el-menu-item>

        </el-menu-item-group>

        <el-submenu index="1-4">

          <template slot="title">选项4</template>

          <el-menu-item index="1-4-1">选项4-1</el-menu-item>

        </el-submenu>

      </el-submenu>

      <el-submenu index="">

        <template slot="title"><i class="el-icon-menu"></i>导航二</template>

        <el-menu-item-group>

          <template slot="title">分组一</template>

          <el-menu-item index="2-1">选项1</el-menu-item>

          <el-menu-item index="2-2">选项2</el-menu-item>

        </el-menu-item-group>

        <el-menu-item-group title="分组2">

          <el-menu-item index="2-3">选项3</el-menu-item>

        </el-menu-item-group>

        <el-submenu index="2-4">

          <template slot="title">选项4</template>

          <el-menu-item index="2-4-1">选项4-1</el-menu-item>

        </el-submenu>

      </el-submenu>

      <el-submenu index="">

        <template slot="title"><i class="el-icon-setting"></i>导航三</template>

        <el-menu-item-group>

          <template slot="title">分组一</template>

          <el-menu-item index="3-1">选项1</el-menu-item>

          <el-menu-item index="3-2">选项2</el-menu-item>

        </el-menu-item-group>

        <el-menu-item-group title="分组2">

          <el-menu-item index="3-3">选项3</el-menu-item>

        </el-menu-item-group>

        <el-submenu index="3-4">

          <template slot="title">选项4</template>

          <el-menu-item index="3-4-1">选项4-1</el-menu-item>

        </el-submenu>

      </el-submenu>

    </el-menu>

  </el-aside>

  <el-container style="padding-bottom: 15px">

    <el-header style="text-align: right; font-size: 12px">

      <el-dropdown>

        <i class="el-icon-setting" style="margin-right: 15px"></i>

        <el-dropdown-menu slot="dropdown">

          <el-dropdown-item>退出</el-dropdown-item>

          <!-- <el-dropdown-item>新增</el-dropdown-item>

          <el-dropdown-item>删除</el-dropdown-item> -->

        </el-dropdown-menu>

      </el-dropdown>

      <span>Adil</span>

    </el-header>

    <el-main>

      <el-table :data="tableData">

        <el-table-column prop="create_time" label="日期" width="">

        </el-table-column>

        <el-table-column prop="username" label="姓名" width="">

        </el-table-column>

        <el-table-column prop="username" label="地址">

        </el-table-column>

      </el-table>

    </el-main>

         <el-pagination

         background

      @size-change="handleSizeChange"

      @current-change="handleCurrentChange"

      :current-page="currentPage"

      :page-sizes="[10, 20, 30, 50]"

      :page-size="pageSize"

      layout=" sizes, prev, pager, next, jumper"

      :total="total">

    </el-pagination>

  </el-container>

</el-container>

</template>

<style>

  .el-header {

    background-color: #B3C0D1;

    color: #333;

    line-height: 60px;

  }

  .el-aside {

    color: #333;

  }

</style>

<script>

import axios from 'axios';

  export default {

    data() {

      return {

        tableData: [],

        total: 0,

        currentPage: 1,

        pageSize: 10

      }

    },

    created(){

        this.getUserList()

    },

    methods:{

        handleSizeChange(size) {

            this.pageSize = size;

            this.getUserList();

        },

        handleCurrentChange(current) {

            this.currentPage = current;

            this.getUserList();

        },

        getUserList(){

            const token = localStorage.getItem('token');

            axios.get(`/home/userlist/?token=${token}`,

            {headers:{token:localStorage.getItem('token')},

                params: {

                    currentPage: this.currentPage,

                    pageSize: this.pageSize

                }

            }).then((res)=>

        {

            // 后台方式一

            // const data = res.data

            // this.tableData = data.data;

            // this.total = data.lens;

            // 后台方式二

            const data = res.data

            this.tableData = data.results;

            this.total = data.count;

        console.log(res.data);

        // if (res.data.code===1000){

        // //   localStorage.setItem('token',res.data.token);

        // //     this.$router.push({path:'/userlist'});

        // }

        });

        }

        }

// getUserList(){

//             axios.get('/home/userlist/').then((res)=>

//         {

//         console.log(res);

//         // if (res.data.code===1000){

//         // //   localStorage.setItem('token',res.data.token);

//         // //     this.$router.push({path:'/userlist'});

//         // }

//         });

//         }

//         }

  }

</script>

方式二的返回结果如下

django rest_framework vue 实现用户列表分页

相关文章