Django+Vue二手交易平台的设计与实现

[1 项目介绍](#1 项目介绍)
[2 项目截图](#2 项目截图)
[3 核心代码](#3 核心代码)
- [3.1 需要的环境](#3.1 需要的环境)
- [3.2 Django接口层](#3.2 Django接口层)
- [3.3 实体类](#3.3 实体类)
- [3.4 config.ini](#3.4 config.ini)
- [3.5 启动类](#3.5 启动类)
- [3.5 Vue](#3.5 Vue)
[4 数据库表设计](#4 数据库表设计)
[5 文档参考](#5 文档参考)
[6 计算机毕设选题推荐](#6 计算机毕设选题推荐)
[7 源码获取](#7 源码获取)

1 项目介绍

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👇🏻👇🏻文末获取源码

Django+Vue二手交易平台的设计与实现(源码+数据库+文档)

项目描述

本系统是基于B/S架构的网站系统，分为系统前台和系统后台，前台主要是提供给注册用户和未注册登录的游客使用的，包括系统主页、设备信息、公告信息、购物车、个人中心等；后台是给系统管理员使用的，可以全方面的对系统的资讯进行实时的更新，对系统进行实时的维护。它的主要功能包括用户、设备类型、设备信息、系统管理、订单管理、个人资料等。

2 项目截图

django基于Django的二手电子设备交易平台设计与开发演示

3 核心代码

3.1 需要的环境

django==2.0
django-threadlocals
pymysql
click
requests
xlrd==1.2.0
django-cors-headers

3.2 Django接口层

py 复制代码

# coding:utf-8
__author__ = "ila"

from django.http import JsonResponse

from .users_model import users
from util.codes import *
from util.auth import Auth
import util.message as mes
from dj2.settings import host,port,user,passwd,dbName,hasHadoop

def users_login(request):
    if request.method in ["POST", "GET"]:
        msg = {'code': normal_code, "msg": mes.normal_code}
        req_dict = request.session.get("req_dict")
        if req_dict.get('role')!=None:
            del req_dict['role']
        
        datas = users.getbyparams(users, users, req_dict)
        if not datas:
            msg['code'] = password_error_code
            msg['msg'] = mes.password_error_code
            return JsonResponse(msg)

        req_dict['id'] = datas[0].get('id')
        return Auth.authenticate(Auth, users, req_dict)


def users_register(request):
    if request.method in ["POST", "GET"]:
        msg = {'code': normal_code, "msg": mes.normal_code}
        req_dict = request.session.get("req_dict")

        error = users.createbyreq(users, users, req_dict)
        if error != None:
            msg['code'] = crud_error_code
            msg['msg'] = error
        return JsonResponse(msg)


def users_session(request):
    '''
    '''
    if request.method in ["POST", "GET"]:
        msg = {"code": normal_code,"msg":mes.normal_code, "data": {}}

        req_dict = {"id": request.session.get('params').get("id")}
        msg['data'] = users.getbyparams(users, users, req_dict)[0]

        return JsonResponse(msg)


def users_logout(request):
    if request.method in ["POST", "GET"]:
        msg = {
            "msg": "退出成功",
            "code": 0
        }

        return JsonResponse(msg)


def users_page(request):
    '''
    '''
    if request.method in ["POST", "GET"]:
        msg = {"code": normal_code, "msg": mes.normal_code,
               "data": {"currPage": 1, "totalPage": 1, "total": 1, "pageSize": 10, "list": []}}
        req_dict = request.session.get("req_dict")
        tablename = request.session.get("tablename")
        try:
            __hasMessage__ = users.__hasMessage__
        except:
            __hasMessage__ = None
        if __hasMessage__ and __hasMessage__ != "否":

            if tablename != "users":
                req_dict["userid"] = request.session.get("params").get("id")
        if tablename == "users":
            msg['data']['list'], msg['data']['currPage'], msg['data']['totalPage'], msg['data']['total'], \
            msg['data']['pageSize'] = users.page(users, users, req_dict)
        else:
            msg['data']['list'], msg['data']['currPage'], msg['data']['totalPage'], msg['data']['total'], \
            msg['data']['pageSize'] = [],1,0,0,10

        return JsonResponse(msg)


def users_info(request, id_):
    '''
    '''
    if request.method in ["POST", "GET"]:
        msg = {"code": normal_code, "msg": mes.normal_code, "data": {}}

        data = users.getbyid(users, users, int(id_))
        if len(data) > 0:
            msg['data'] = data[0]
        # 浏览点击次数
        try:
            __browseClick__ = users.__browseClick__
        except:
            __browseClick__ = None

        if __browseClick__ and "clicknum" in users.getallcolumn(users, users):
            click_dict = {"id": int(id_), "clicknum": str(int(data[0].get("clicknum", 0)) + 1)}
            ret = users.updatebyparams(users, users, click_dict)
            if ret != None:
                msg['code'] = crud_error_code
                msg['msg'] = ret
        return JsonResponse(msg)


def users_save(request):
    '''
    '''
    if request.method in ["POST", "GET"]:
        msg = {"code": normal_code, "msg": mes.normal_code, "data": {}}
        req_dict = request.session.get("req_dict")
        req_dict['role'] = '管理员'
        error = users.createbyreq(users, users, req_dict)
        if error != None:
            msg['code'] = crud_error_code
            msg['msg'] = error
        return JsonResponse(msg)


def users_update(request):
    '''
    '''
    if request.method in ["POST", "GET"]:
        msg = {"code": normal_code, "msg": mes.normal_code, "data": {}}
        req_dict = request.session.get("req_dict")
        if req_dict.get("mima") and req_dict.get("password"):
            if "mima" not in users.getallcolumn(users,users):
                del req_dict["mima"]
            if "password" not in users.getallcolumn(users,users):
                del req_dict["password"]
        try:
            del req_dict["clicknum"]
        except:
            pass
        error = users.updatebyparams(users, users, req_dict)
        if error != None:
            msg['code'] = crud_error_code
            msg['msg'] = error
        return JsonResponse(msg)


def users_delete(request):
    '''
    '''
    if request.method in ["POST", "GET"]:
        msg = {"code": normal_code, "msg": mes.normal_code, "data": {}}
        req_dict = request.session.get("req_dict")

        error = users.deletes(users,
            users,
            req_dict.get("ids")
        )
        if error != None:
            msg['code'] = crud_error_code
            msg['msg'] = error
        return JsonResponse(msg)

3.3 实体类

py 复制代码

# coding:utf-8
__author__ = "ila"

from django.db import models

from .model import BaseModel


class users(BaseModel):
    # id=models.BigIntegerField(verbose_name="自增id")
    username = models.CharField(max_length=100, verbose_name=u'账号')
    password = models.CharField(max_length=100, verbose_name=u'密码')
    role = models.CharField(max_length=100, verbose_name=u'角色')
    addtime = models.DateTimeField(auto_now_add=False, verbose_name=u'创建时间')
    image = models.CharField(max_length=100, verbose_name=u'头像')

    __tablename__ = 'users'

    class Meta:
        db_table = 'users'
        verbose_name = verbose_name_plural = u'管理员表'

    # def __str__(self):
    #     return self.username

3.4 config.ini

yml 复制代码

[sql]
;support two sql,mysql and mssql,choice one
type = mysql
host = 127.0.0.1
port = 3306
user = root
passwd = 123456
db = djangoc2e8kave
charset = utf8
hasHadoop=否
[redis]
host = 127.0.0.1
port = 6379
passwd = 123456

3.5 启动类

java 复制代码

#!/usr/bin/env python
import os
import sys

if __name__ == "__main__":
    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "dj2.settings")
    try:
        from django.core.management import execute_from_command_line
    except ImportError as exc:
        raise ImportError(
            "Couldn't import Django. Are you sure it's installed and "
            "available on your PYTHONPATH environment variable? Did you "
            "forget to activate a virtual environment?"
        ) from exc
    execute_from_command_line(sys.argv)

3.5 Vue

html 复制代码

<template>
  <div>
    <div class="container loginIn" style="backgroundImage: url(http://codegen.caihongy.cn/20201206/eaa69c2b4fa742f2b5acefd921a772fc.jpg)">

      <div :class="2 == 1 ? 'left' : 2 == 2 ? 'left center' : 'left right'" style="backgroundColor: rgba(255, 255, 255, 0.71)">
        <el-form class="login-form" label-position="left" :label-width="1 == 3 ? '56px' : '0px'">
          <div class="title-container"><h3 class="title" style="color: rgba(84, 88, 179, 1)">在线文档管理系统登录</h3></div>
          <el-form-item :label="1 == 3 ? '用户名' : ''" :class="'style'+1">
            <span v-if="1 != 3" class="svg-container" style="color:rgba(89, 97, 102, 1);line-height:44px"><svg-icon icon-class="user" /></span>
            <el-input placeholder="请输入用户名" name="username" type="text" v-model="rulesForm.username" />
          </el-form-item>
          <el-form-item :label="1 == 3 ? '密码' : ''" :class="'style'+1">
            <span v-if="1 != 3" class="svg-container" style="color:rgba(89, 97, 102, 1);line-height:44px"><svg-icon icon-class="password" /></span>
            <el-input placeholder="请输入密码" name="password" type="password" v-model="rulesForm.password" />
          </el-form-item>
          <el-form-item v-if="0 == '1'" class="code" :label="1 == 3 ? '验证码' : ''" :class="'style'+1">
            <span v-if="1 != 3" class="svg-container" style="color:rgba(89, 97, 102, 1);line-height:44px"><svg-icon icon-class="code" /></span>
            <el-input placeholder="请输入验证码" name="code" type="text" v-model="rulesForm.code" />
            <div class="getCodeBt" @click="getRandCode(4)" style="height:44px;line-height:44px">
              <span v-for="(item, index) in codes" :key="index" :style="{color:item.color,transform:item.rotate,fontSize:item.size}">{{ item.num }}</span>
            </div>
          </el-form-item>
          <el-form-item label="角色" prop="loginInRole" class="role">
            <el-radio
              v-for="item in menus"
	      v-if="item.hasBackLogin=='是'"
              v-bind:key="item.roleName"
              v-model="rulesForm.role"
              :label="item.roleName"
            >{{item.roleName}}</el-radio>
          </el-form-item>
          <el-button type="primary" @click="login()" class="loginInBt" style="padding:0;font-size:16px;border-radius:4px;height:44px;line-height:44px;width:100%;backgroundColor:rgba(84, 88, 179, 1); borderColor:rgba(84, 88, 179, 1); color:rgba(255, 255, 255, 1)">{{'1' == '1' ? '登录' : 'login'}}</el-button>
          <el-form-item class="setting">
            <!-- <div style="color:rgba(255, 255, 255, 1)" class="reset">修改密码</div> -->
          </el-form-item>
        </el-form>
      </div>

    </div>
  </div>
</template>
<script>
import menu from "@/utils/menu";
export default {
  data() {
    return {
      rulesForm: {
        username: "",
        password: "",
        role: "",
        code: '',
      },
      menus: [],
      tableName: "",
      codes: [{
        num: 1,
        color: '#000',
        rotate: '10deg',
        size: '16px'
      },{
        num: 2,
        color: '#000',
        rotate: '10deg',
        size: '16px'
      },{
        num: 3,
        color: '#000',
        rotate: '10deg',
        size: '16px'
      },{
        num: 4,
        color: '#000',
        rotate: '10deg',
        size: '16px'
      }],
    };
  },
  mounted() {
    let menus = menu.list();
    this.menus = menus;
  },
  created() {
    this.setInputColor()
    this.getRandCode()
  },
  methods: {
    setInputColor(){
      this.$nextTick(()=>{
        document.querySelectorAll('.loginIn .el-input__inner').forEach(el=>{
          el.style.backgroundColor = "rgba(255, 255, 255, 1)"
          el.style.color = "rgba(0, 0, 0, 1)"
          el.style.height = "44px"
          el.style.lineHeight = "44px"
          el.style.borderRadius = "2px"
        })
        document.querySelectorAll('.loginIn .style3 .el-form-item__label').forEach(el=>{
          el.style.height = "44px"
          el.style.lineHeight = "44px"
        })
        document.querySelectorAll('.loginIn .el-form-item__label').forEach(el=>{
          el.style.color = "rgba(89, 97, 102, 1)"
        })
        setTimeout(()=>{
          document.querySelectorAll('.loginIn .role .el-radio__label').forEach(el=>{
            el.style.color = "rgba(84, 88, 179, 1)"
          })
        },350)
      })

    },
    register(tableName){
      this.$storage.set("loginTable", tableName);
      this.$router.push({path:'/register'})
    },
    // 登陆
    login() {
      let code = ''
      for(let i in this.codes) {
        code += this.codes[i].num
      }
	  if ('0' == '1' && !this.rulesForm.code) {
	     this.$message.error("请输入验证码");
	    return;
	  }
      if ('0' == '1' && this.rulesForm.code.toLowerCase() != code.toLowerCase()) {
         this.$message.error("验证码输入有误");
		this.getRandCode()
        return;
      }
      if (!this.rulesForm.username) {
         this.$message.error("请输入用户名");
        return;
      }
      if (!this.rulesForm.password) {
         this.$message.error("请输入密码");
        return;
      }
      if (!this.rulesForm.role) {
         this.$message.error("请选择角色");
        return;
      }
      let menus = this.menus;
      for (let i = 0; i < menus.length; i++) {
        if (menus[i].roleName == this.rulesForm.role) {
          this.tableName = menus[i].tableName;
        }
      }
      this.$http({
        url: `${this.tableName}/login?username=${this.rulesForm.username}&password=${this.rulesForm.password}`,
        method: "post"
      }).then(({ data }) => {
        if (data && data.code === 0) {
          this.$storage.set("Token", data.token);
          this.$storage.set("role", this.rulesForm.role);
          this.$storage.set("sessionTable", this.tableName);
          this.$storage.set("adminName", this.rulesForm.username);
          this.$router.replace({ path: "/index/" });
        } else {
          this.$message.error(data.msg);
        }
      });
    },
    getRandCode(len = 4){
      this.randomString(len)
    },
    randomString(len = 4) {
      let chars = [
          "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k",
          "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v",
          "w", "x", "y", "z", "A", "B", "C", "D", "E", "F", "G",
          "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R",
          "S", "T", "U", "V", "W", "X", "Y", "Z", "0", "1", "2",
          "3", "4", "5", "6", "7", "8", "9"
      ]
      let colors = ["0", "1", "2","3", "4", "5", "6", "7", "8", "9", "a", "b", "c", "d", "e", "f"]
      let sizes = ['14', '15', '16', '17', '18']

      let output = [];
      for (let i = 0; i < len; i++) {
        // 随机验证码
        let key = Math.floor(Math.random()*chars.length)
        this.codes[i].num = chars[key]
        // 随机验证码颜色
        let code = '#'
        for (let j = 0; j < 6; j++) {
          let key = Math.floor(Math.random()*colors.length)
          code += colors[key]
        }
        this.codes[i].color = code
        // 随机验证码方向
        let rotate = Math.floor(Math.random()*60)
        let plus = Math.floor(Math.random()*2)
        if(plus == 1) rotate = '-'+rotate
        this.codes[i].rotate = 'rotate('+rotate+'deg)'
        // 随机验证码字体大小
        let size = Math.floor(Math.random()*sizes.length)
        this.codes[i].size = sizes[size]+'px'
      }
    },
  }
};
</script>
<style lang="scss" scoped>
.loginIn {
  min-height: 100vh;
  position: relative;
  background-repeat: no-repeat;
  background-position: center center;
  background-size: cover;

  .left {
    position: absolute;
    left: 0;
    top: 0;
    width: 360px;
    height: 100%;

    .login-form {
      background-color: transparent;
      width: 100%;
      right: inherit;
      padding: 0 12px;
      box-sizing: border-box;
      display: flex;
      justify-content: center;
      flex-direction: column;
    }

    .title-container {
      text-align: center;
      font-size: 24px;

      .title {
        margin: 20px 0;
      }
    }

    .el-form-item {
      position: relative;

      .svg-container {
        padding: 6px 5px 6px 15px;
        color: #889aa4;
        vertical-align: middle;
        display: inline-block;
        position: absolute;
        left: 0;
        top: 0;
        z-index: 1;
        padding: 0;
        line-height: 40px;
        width: 30px;
        text-align: center;
      }

      .el-input {
        display: inline-block;
        height: 40px;
        width: 100%;

        & /deep/ input {
          background: transparent;
          border: 0px;
          -webkit-appearance: none;
          padding: 0 15px 0 30px;
          color: #fff;
          height: 40px;
        }
      }

    }


  }

  .center {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 360px;
    transform: translate3d(-50%,-50%,0);
    height: 446px;
    border-radius: 8px;
  }

  .right {
    position: absolute;
    left: inherit;
    right: 0;
    top: 0;
    width: 360px;
    height: 100%;
  }

  .code {
    .el-form-item__content {
      position: relative;

      .getCodeBt {
        position: absolute;
        right: 0;
        top: 0;
        line-height: 40px;
        width: 100px;
        background-color: rgba(51,51,51,0.4);
        color: #fff;
        text-align: center;
        border-radius: 0 4px 4px 0;
        height: 40px;
        overflow: hidden;

        span {
          padding: 0 5px;
          display: inline-block;
          font-size: 16px;
          font-weight: 600;
        }
      }

      .el-input {
        & /deep/ input {
          padding: 0 130px 0 30px;
        }
      }
    }
  }

  .setting {
    & /deep/ .el-form-item__content {
      padding: 0 15px;
      box-sizing: border-box;
      line-height: 32px;
      height: 32px;
      font-size: 14px;
      color: #999;
      margin: 0 !important;

      .register {
        float: left;
        width: 50%;
      }

      .reset {
        float: right;
        width: 50%;
        text-align: right;
      }
    }
  }

  .style2 {
    padding-left: 30px;

    .svg-container {
      left: -30px !important;
    }

    .el-input {
      & /deep/ input {
        padding: 0 15px !important;
      }
    }
  }

  .code.style2, .code.style3 {
    .el-input {
      & /deep/ input {
        padding: 0 115px 0 15px;
      }
    }
  }

  .style3 {
    & /deep/ .el-form-item__label {
      padding-right: 6px;
    }

    .el-input {
      & /deep/ input {
        padding: 0 15px !important;
      }
    }
  }

  .role {
    & /deep/ .el-form-item__label {
      width: 56px !important;
    }

    & /deep/ .el-radio {
      margin-right: 12px;
    }
  }

}
</style>

4 数据库表设计

用户注册实体图如图所示：

数据库表的设计，如下表：

5 文档参考

6 计算机毕设选题推荐

最新计算机软件毕业设计选题大全：整理中...

7 源码获取

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