计算机毕业设计django基于python学校在线打印系统

随着计算机多媒体技术的发展和网络的普及。采用当前流行的B/S模式以及3层架构的设计思想通过Python技术来开发此系统的目的是建立一个配合网络环境的学校在线打印系统的平台,这样可以有效地解决打印混乱的局面。

使用说明
使用Navicat或者其它工具，在mysql中创建对应名称的数据库，并导入项目的sql文件；
使用PyCharm 导入项目，修改配置，运行项目；
将项目中config.ini配置文件中的数据库配置改为自己的配置，然后运行；
运行成功后，在浏览器中输入：http://localhost:8080/项目名

在线提交文档进行打印 首页简单介绍系统 顶部或主页按钮转到打印 用户可以登录 查看历史打印记录 用户分学生和非学生 学生可以享有优惠 通过管理员身份进行用户以及文件的管理

本文首先介绍了学校在线打印系统的发展背景与发展现状,然后遵循软件常规开发流程,首先针对系统选取适用的语言和开发平台,根据需求分析制定模块并设计数据库结构,再根据系统总体功能模块的设计绘制系统的功能模块图,流程图以及E-R图。然后,设计框架并根据设计的框架编写代码以实现系统的各个功能模块。最后,对初步完成的系统进行测试,主要是功能测试、单元测试和性能测试。测试结果表明,该系统能够实现所需的功能,运行状况尚可并无明显缺点。`# 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

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”)
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)

`

目录
1 绪论 1
1.1课题背景 1
1.2课题研究现状 1
1.3初步设计方法与实施方案 2
1.4本文研究内容 2
2 系统开发环境 4
2.1 使用工具简介 4
2.2 环境配置 4
2.3 B/S结构简介 4
2.4 MySQL数据库 5
2.5 框架介绍 5
3 系统分析 6
3.1系统可行性分析 6
3.1.1经济可行性 6
3.1.2技术可行性 6
3.1.3运行可行性 6
3.2系统现状分析 6
3.3功能需求分析 7
3.4系统设计规则与运行环境 8
3.5系统流程分析 8
3.5.1操作流程 8
3.5.2添加信息流程 9
3.5.3删除信息流程 10
4 系统设计 11
4.1系统设计主要功能 11
4.2数据库设计 11
4.2.1数据库设计规范 11
4.2.2 E/R图 11
4.2.3数据表 12
5 系统实现 25
5.1系统功能模块 25
5.2后台模块 27
5.2.1管理员功能模块 27
5.2.2用户功能模块 30
6 系统测试 33
6.1功能测试 33
6.2可用性测试 33
6.3性能测试 34
6.4测试结果分析 34
7结 论 35
参考文献 36
致 谢 37