二、Django用Eclipse编写一个登录界面

一、Django用Eclipse编写一个登录界面

二、Django用Eclipse编写一个登录界面Ajax和Django交互

　　各软件版本：Python 2.7.14，django 1.6.11

　　　　

原来已经写好一个登录界面了，不过那个是系统自动的。现在我们自己动手写一个

1.我们在项目admin下新建一个

2.新建项目online：

3.把urls.py拷贝一份到online项目目录下：

然后开始修改admin项目下的settings.py:

"""
Django settings for admin project.

For more information on this file, see
https://docs.djangoproject.com/en/1.6/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/1.6/ref/settings/
"""

# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
import os
from django.conf.global_settings import STATIC_ROOT
BASE_DIR = os.path.dirname(os.path.dirname(__file__))

# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/1.6/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = 't2ruk$q%dl$t^$15=4tj!js*_2yal3+f&@hg_9__ww=p#5x9j&'

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True

TEMPLATE_DEBUG = True

ALLOWED_HOSTS = []

# Application definition

INSTALLED_APPS = (
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'online'
)

MIDDLEWARE_CLASSES = (
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    #'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
)

ROOT_URLCONF = 'admin.urls'

WSGI_APPLICATION = 'admin.wsgi.application'

# Database
# https://docs.djangoproject.com/en/1.6/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
    }
}

# Internationalization
# https://docs.djangoproject.com/en/1.6/topics/i18n/

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_L10N = True

USE_TZ = True

APPEND_SLASH = False
# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/1.6/howto/static-files/

STATIC_URL = '/static/'
STATIC_ROOT = os.path.join(BASE_DIR,'static')
#template
TEMPLATE_DIRS=(
    'D:\\own_own\\admin\src\\online\\templates'
)

4.然后开始修改admin项目下的urls.py:

 from django.conf.urls import patterns, include, url
 from django.contrib import admin
 admin.autodiscover()

 urlpatterns = patterns('',
     # Examples:
     # url(r'^$', 'mysite5.views.home', name='home'),

     url(r'^admin/', include(admin.site.urls)),
     url(r'^online/', include('online.urls')),
 )

5.如果需要新建数据库表的话，可以修改online项目下的models.py:

from django.db import models

# Create your models here.
class User(models.Model):
    username = models.CharField(max_length = 50)
    password = models.CharField(max_length = 50)

    def _unicode_(self):
        return self.username

然后执行命令行：win+r可进入cmd中到项目online目录下找到manage.py。执行如下命令：

 先 cd 进入 manage.py 所在的那个文件夹下，输入下面的命令

 # Django 1.6.x 及以下
 python manage.py syncdb

 # Django 1.7 及以上的版本需要用以下命令
 python manage.py makemigrations
 python manage.py migrate

Django 1.6.x 以下版本 显示大概如下：

Django 1.7.x 以上版本的同学会看到

6.在online项目下的urls.py中引用定义登录用的方法 

 from django.conf.urls import patterns, url
 from online import views

 urlpatterns = patterns('',
     url(r'^$', views.login, name='login'),
     url(r'^login/$',views.login,name = 'login'),
     url(r'^regist/$',views.regist,name = 'regist'),
     url(r'^index/$',views.index,name = 'index'),
     url(r'^logout/$',views.logout,name = 'logout'),

 )

7.在views.py中定义上面引用的方法。然后保存urls.py就不报错了。

 # -*- coding: utf-8 -*-
 from django.shortcuts import render,render_to_response
 from django.http import HttpResponse,HttpResponseRedirect
 from django.template import RequestContext
 from django import forms
 from models import User
 import json
 #表单
 class UserForm(forms.Form):
     username = forms.CharField(label='用户名',max_length=100)
     password = forms.CharField(label='密码',widget=forms.PasswordInput())

 #注册
 def regist(req):
     if req.method == 'POST':
         uf = UserForm(req.POST)
         if uf.is_valid():
             #获得表单数据
             username = uf.cleaned_data['username']
             password = uf.cleaned_data['password']
             #添加到数据库
             User.objects.create(username= username,password=password)
             return HttpResponse('regist success!!')
     else:
         uf = UserForm()
     return render_to_response('regist.html',{'uf':uf}, context_instance=RequestContext(req))

 #登录
 def login(req):
     if req.method == 'POST':
         data = req.POST
         jstr = json.dumps(data) # 把传入的参数json话
         decodejson = json.loads(jstr) # 封装json 然后获取其中的某个字段
         username = decodejson['username']
         print('username==%s'%username)
         req.session['username'] = username #吧username存储到session中
         responseData = {'state':0,'msg':'success','username':username}
         return HttpResponse(json.dumps(responseData,ensure_ascii=False,encoding="utf-8"), content_type="application/json")
     else:
         responseData = {'state':1,'msg':'faile'}
         return render(req, 'login.html', json.dumps(responseData))
 #登陆成功
 def index(req):
     username = req.session.get('username',False) # 获取session中的username
     print(username)
     return render_to_response('index.html' ,{'username':username})

 #退出
 def logout(req):
     response = HttpResponse('logout !!')
     #清理cookie里保存username
     response.delete_cookie('username')
     return response

8.方法写好后开始新建登录所需的模板和js以及css

online项目下的templates中新建 index.html,login.html,regist.html

index.html

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <title></title>
</head>

<body>
<h1>欢迎 {{username}} !</h1>
<br>
<a href="http://127.0.0.1:8000/online/logout/">退出</a>
</body>
</html>

login.html

<!DOCTYPE html>

<html>

    <head>
        <meta charset="utf-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
        <title>登录</title>
        <link rel="stylesheet" href="/static/plugins/layui/css/layui.css" media="all" />
        <link rel="stylesheet" href="/static/css/login.css" />
    </head>

    <body class="beg-login-bg">
        <div class="beg-login-box">
            <header>
                <h1>后台登录</h1>
            </header>
            <div class="beg-login-main">
                <form  enctype="multipart/form-data" class="layui-form" method="post"><input name="__RequestVerificationToken" type="hidden" value="fkfh8D89BFqTdrE2iiSdG_L781RSRtdWOH411poVUWhxzA5MzI8es07g6KPYQh9Log-xf84pIR2RIAEkOokZL3Ee3UKmX0Jc8bW8jOdhqo81" />
                    <div class="layui-form-item">
                        <label class="beg-login-icon">
                        <i class="layui-icon"></i>
                    </label>
                        <input id="id_username" type="text" name="username" lay-verify="username" autocomplete="off" placeholder="这里输入登录名" class="layui-input">
                    </div>
                    <div class="layui-form-item">
                        <label class="beg-login-icon">
                        <i class="layui-icon"></i>
                    </label>
                        <input id="id_password" type="password" name="password" lay-verify="password" autocomplete="off" placeholder="这里输入密码" class="layui-input">
                    </div>
                    <div class="layui-form-item">
                        <div class="beg-pull-left beg-login-remember">
                            <label>记住帐号？</label>
                            <input type="checkbox" name="rememberMe" value="true" lay-skin="switch" checked title="记住帐号">
                        </div>
                        <div class="beg-pull-right">
                            <button class="layui-btn layui-btn-primary" lay-submit lay-filter="syslogin" id='syslogin'>
                            <i class="layui-icon"></i> 登录
                        </button>
                        </div>
                        <div class="beg-clear"></div>
                    </div>
                </form>
            </div>
            <footer>
                <p>Beginner © www.zhengjinfan.cn</p>
            </footer>
        </div>
        <script type="text/javascript" src="/static/plugins/layui/layui.js"></script>
        <script>
            layui.use(['layer', 'form'], function() {
                var layer = layui.layer,
                    $ = layui.jquery,
                    form = layui.form();

                $('#syslogin').on('click',function(){
                    var username = $('#id_username').val();
                    var password = $('#id_password').val();
                    var cate = {'username':username,'password':password} ;
                    $.ajax({
                        url:'/online/login/',           //url相当于 form 中的 action
                        type:'POST',            //type相当于form 中的 method
                        data:cate,       // data：传人的数据 dat为任意设置的内容，相当于模版中的{author:lee}
                        dataType: "text",
                        success:function(result){     //成功执行  console.log() 函数 arg 为HttpResponse 返回的值
                            var data = JSON.parse(result)
                            console.info(result)          //打印obj
                            if(data.state==0){
                                document.cookie="username="+data.username;
                                window.location.href="/online/index/";
                            }else{
                                alert("失败并不")
                            }
                        },
                        error:function(){            //失败
                            console.info('失败')
                        }
                    });
                })
            });
        </script>
    </body>

</html>

regist.html

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <title>注册</title>
</head>

<body>
<h1>注册页面：</h1>
<form method = 'post' enctype="multipart/form-data">
    {% csrf_token %}
    {{uf.as_p}}
    <input type="submit" value = "ok" />
</form>
<br>
<a href="http://127.0.0.1:8000/online/login/">登陆</a>
</body>
</html>

 9.在online项目中新建static文件夹

login.css

.beg-login-bg {
    /* background: url(../Images/login-bg-1.jpg) no-repeat center center fixed; */
    background-color: #393D49;
}

.beg-login-box {
    width: 450px;
    height: 330px;
    margin: 10% auto;
    background-color: rgba(255, 255, 255, 0.407843);
    border-radius: 10px;
    color: aliceblue;
}

.beg-login-box header {
    height: 39px;
    padding: 10px;
    border-bottom: 1px solid aliceblue;
}

.beg-login-box header h1 {
    text-align: center;
    font-size: 25px;
    line-height: 40px;
}

.beg-login-box .beg-login-main {
    height: 185px;
    padding: 30px 90px 0;
}

.beg-login-main .layui-form-item {
    position: relative;
}

.beg-login-main .layui-form-item .beg-login-icon {
    position: absolute;
    color: #cccccc;
    top: 10px;
    left: 10px;
}

.beg-login-main .layui-form-item input {
    padding-left: 34px;
}

.beg-login-box footer {
    height: 35px;
    padding: 10px 10px 0 10px;
}

.beg-login-box footer p {
    line-height: 35px;
    text-align: center;
}

.beg-pull-left {
    float: left !important;
}

.beg-pull-right {
    float: right !important;
}

.beg-clear {
    clear: both;
}

.beg-login-remember {
    line-height: 38px;
}

.beg-login-remember .layui-form-switch {
    margin-top: 0px;
}

.beg-login-code-box {
    position: relative;
    padding: 10px;
}

.beg-login-code-box input {
    position: absolute;
    width: 100px;
}

.beg-login-code-box img {
    cursor: pointer;
    position: absolute;
    left: 115px;
    height: 38px;
}

layout.css

.beg-layout-container{
    /*min-width: 1024px;*/
}
.beg-layout-container .beg-layout-main{
    position: absolute;
}
.beg-layout-container .beg-layout-header{
    background-color: #FFFFFF;
    height: 55px;
    position: fixed;
    width: 100%;
    min-width: 800px;
    border-bottom: 5px solid #1AA094;
}
.beg-layout-container .beg-layout-header .beg-layout-logo{
    width: 200px;
    height: 60px;
    text-align: center;
    line-height: 60px;
}
.beg-layout-container .beg-layout-header .beg-layout-side-toggle{
    position: absolute;
    cursor: pointer;
    z-index:;
    left: 200px;
    color: white;
    text-align: center;
    width: 30px;
    height: 30px;
    background-color: #1AA094;
    line-height: 30px;
    top: 25%;
}
.beg-layout-container .beg-layout-header .beg-layout-side-toggle:hover{
    background-color: #5FB878;
}
.beg-layout-container .beg-layout-header .beg-layout-menu{
    top:;
    left:230px;
}
.beg-layout-header .beg-layout-menu .beg-layout-nav{
    background: none;
}
.beg-layout-header .beg-layout-menu .beg-layout-nav .layui-nav-item{
    line-height: 60px;
}
.beg-layout-header .beg-layout-menu .beg-layout-nav .layui-nav-item .layui-nav-more{
    top:27px
}
.beg-layout-header .beg-layout-menu .beg-layout-nav .layui-nav-item .layui-nav-mored{
    top:20px
}
.beg-layout-header .beg-layout-menu .beg-layout-nav .layui-this{
    color: #FFFFFF;
    background-color: #4E5465;
}
.beg-layout-header .beg-layout-menu .beg-layout-nav .layui-this:after,.beg-layout-header .layui-nav-bar{
    background-color: #4E5465;
}
.beg-layout-header .beg-layout-menu .beg-layout-nav .layui-nav-item a{
    color: #393D49;
}
.beg-layout-header .beg-layout-menu .beg-layout-nav .layui-this a{
    color: #FFFFFF;
}
.beg-layout-header .beg-layout-menu .beg-layout-nav .layui-nav-item a:hover{
    color: #FFFFFF;
    background-color: #4E5465;
}
.beg-layout-header .beg-layout-panel{
    right: 10px;
}
.beg-layout-header .beg-layout-panel .beg-layout-nav{
    background: none;
}
.beg-layout-header .beg-layout-panel .beg-layout-nav a{
    color: #393D49;
}
.beg-layout-header .beg-layou-head{

}
.beg-layout-header .beg-layou-head img{
    width: 40px; height: 40px; border-radius: 100%;
}

.beg-layout-container .beg-layout-side{
    background-color: #393D49;
    color: #FFFFFF;
    top: 60px;
}
.beg-layout-container .beg-layout-body{
    top: 60px;
    height: auto;
}
.beg-layout-container .beg-layout-body .layout-nav-card cite{
    font-style: normal;
    padding-left: 5px;
}
.beg-layout-body iframe{
    width: 100%;
    border:;
    height: 99.5%;
}
.beg-layout-container .beg-layout-footer{
    line-height: 44px;
    text-align: center;
}

.layout-tab-contextmenu {width: 135px; background-color: #CCCCCC;position: absolute; z-index:;display: none;}
.layout-tab-contextmenu .layui-nav{
    padding: 5px 3px;
}
.layout-tab-contextmenu .layui-nav .layui-nav-item{
    line-height: 27px;width: 100%;
}
.layout-tab-contextmenu .layui-nav .layui-nav-item:hover{
    background-color: #5FB878;
}
.layout-tab-contextmenu .layui-nav .layui-nav-item a{
    text-align: left;
}

.layout-tab-contextmenu .layui-nav .layui-this:after, .layout-tab-contextmenu  .layui-nav-bar {
    transition: none; -webkit-transition:none; background: none;
    }
.admin-contextmenu{
    position: absolute;line-height: 36px;padding: 5px 0;
    border: 1px solid #d2d2d2;background-color: white;z-index:;border-radius: 2px;white-space: nowrap;top:30px;
    /*width: 100px;height: 200px; */
}
.admin-contextmenu ul li{
    padding: 0 15px;
}
.admin-contextmenu ul li:hover{
    background-color: #eee;
    cursor: pointer;
}

@media screen and (max-width: 1024px) {
    .beg-layout-menu cite{
        display: none;
    }

}

layui.js

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p=n.createElement("script"),h=(a[m]?d+"lay/":o.base||"")+(f.modules[m]||m)+".js";return p.async=!0,p.charset="utf-8",p.src=h+function(){var e=o.version===!0?o.v||(new Date).getTime():o.version||"";return e?"?v="+e:""}(),o.modules[m]?!function g(){return++v>1e3*o.timeout/4?r(m+" is not a valid module"):void("string"==typeof o.modules[m]&&o.status[m]?c():setTimeout(g,4))}():(y.appendChild(p),!p.attachEvent||p.attachEvent.toString&&p.attachEvent.toString().indexOf("[native code")<0||l?p.addEventListener("load",function(e){s(e,h)},!1):p.attachEvent("onreadystatechange",function(e){s(e,h)})),o.modules[m]=h,f},t.fn.getStyle=function(t,n){var o=t.currentStyle?t.currentStyle:e.getComputedStyle(t,null);return o[o.getPropertyValue?"getPropertyValue":"getAttribute"](n)},t.fn.link=function(e,t,i){var l=this,a=n.createElement("link"),u=n.getElementsByTagName("head")[0];"string"==typeof t&&(i=t);var 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t,n=(e||location.hash).replace(/^#/,"").split("/")||[],o={dir:[]},i=0;i<n.length;i++)t=n[i].split("="),/^\w+=/.test(n[i])?function(){"dir"!==t[0]&&(o[t[0]]=t[1])}():o.dir.push(n[i]),t=null;return o},t.fn.data=function(t,n){if(t=t||"layui",e.JSON&&e.JSON.parse){if(null===n)return delete localStorage[t];n="object"==typeof n?n:{key:n};try{var o=JSON.parse(localStorage[t])}catch(i){var o={}}return n.value&&(o[n.key]=n.value),n.remove&&delete o[n.key],localStorage[t]=JSON.stringify(o),n.key?o[n.key]:o}},t.fn.device=function(t){var n=navigator.userAgent.toLowerCase(),o=function(e){var t=new RegExp(e+"/([^\\s\\_\\-]+)");return e=(n.match(t)||[])[1],e||!1},i={os:function(){return/windows/.test(n)?"windows":/linux/.test(n)?"linux":/iphone|ipod|ipad|ios/.test(n)?"ios":void 0}(),ie:function(){return!!(e.ActiveXObject||"ActiveXObject"in e)&&((n.match(/msie\s(\d+)/)||[])[1]||"11")}(),weixin:o("micromessenger")};return t&&!i[t]&&(i[t]=o(t)),i.android=/android/.test(n),i.ios="ios"===i.os,i},t.fn.hint=function(){return{error:r}},t.fn.each=function(e,t){var n,o=this;if("function"!=typeof t)return o;if(e=e||[],e.constructor===Object){for(n in e)if(t.call(e[n],n,e[n]))break}else for(n=0;n<e.length&&!t.call(e[n],n,e[n]);n++);return o},t.fn.stope=function(t){t=t||e.event,t.stopPropagation?t.stopPropagation():t.cancelBubble=!0},t.fn.onevent=function(e,t,n){return"string"!=typeof e||"function"!=typeof n?this:(o.event[e+"."+t]=[n],this)},t.fn.event=function(e,t,n){var i=this,r=null,l=t.match(/\(.*\)$/)||[],a=(t=e+"."+t).replace(l,""),u=function(e,t){var o=t&&t.call(i,n);o===!1&&null===r&&(r=!1)};return layui.each(o.event[a],u),l[0]&&layui.each(o.event[t],u),r},e.layui=new t}(window);

layui.js

10.在admin项目中修改settings.py

新增：

APPEND_SLASH = False #编码转换的时候用到了

新增：

STATIC_ROOT = os.path.join(BASE_DIR,'static') #定义js中用到的static路径
#template
TEMPLATE_DIRS=(
    'D:\\own_own\\admin\src\\online\\templates' #指定静态页面所在的目录
)

11.然后启动运行 Run As ->PyDev: Django

访问路径：http://127.0.0.1:8000/online/login/

访问路径不用弄错了，注意前后都有 /

然后就是登录界面：

随便输入登陆账户和密码，然后就能跳转到index.html页面

后面会陆续有新的文章，我会继续学习分享

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