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<!DOCTYPE html>
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<article id="post-登录模块" class="article article-type-post article-index" itemscope itemprop="blogPost">
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<a class="article-title" href="/2018/12/31/登录模块/">登录模块</a>
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<a href="/2018/12/31/登录模块/" class="archive-article-date">
<time datetime="2018-12-31T13:52:51.000Z" itemprop="datePublished"><i class="icon-calendar icon"></i>2018-12-31</time>
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<p><strong>配置必要环境(以windows中用pychram为参考)</strong></p>
</blockquote>
<p>1.安装python3.6.2，<a href="https://www.python.org/downloads/release/python-362/" target="_blank" rel="noopener">前往下载页</a>,若无pip<a href="https://pypi.org/project/pip/#history" target="_blank" rel="noopener">前往下载页</a>，点击pip-18.1.tar.gz，下载完成后解压,进入到解压后的文件夹，运行<code>python setup.py install</code>，执行<code>pip -V</code>检测是否安装成功。</p>
<p>2.执行<code>pip install virtualenv</code>和<code>pip install virtualenvwrapper</code></p>
<p>3.然后再在windows环境变量(环境变量不是PATH，PATH只是环境变量中的一个变量)中添加变量<code>WORKON_HOME</code>该变量的值为自行选择的一个目录用来存放虚拟环境</p>
<p>4.<code>mkvirtualenv --python=C:\Users\19205\AppData\Local\Programs\Python\Python36-32\python.exe django-2.14</code>创建虚拟环境</p>
<p>5.创建完成后自动进入了该虚拟环境下，以后要进入运行workon +虚拟环境名字(如django-2.14)，以后该django项目所有命令行命令都在对应的虚拟环境中执行</p>
<p>6.<code>pip install django==2.1.4</code>安装django</p>
<a class="article-more-a" href="/2018/12/31/登录模块/#more">more >></a>
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<a href="javascript:void(0)" class="js-tag article-tag-list-link color1">微信小程序</a>
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<a href="javascript:void(0)" class="js-tag article-tag-list-link color3">登录</a>
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<article id="post-linux一些操作与命令" class="article article-type-post article-index" itemscope itemprop="blogPost">
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<a class="article-title" href="/2018/12/31/linux一些操作与命令/">linux的一些操作与命令</a>
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<a href="/2018/12/31/linux一些操作与命令/" class="archive-article-date">
<time datetime="2018-12-31T08:02:31.000Z" itemprop="datePublished"><i class="icon-calendar icon"></i>2018-12-31</time>
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<p>1.shell下某个文件外的其他全部文件全部删除的命令<br><a href="https://blog.csdn.net/taiyang1987912/article/details/41488395" target="_blank" rel="noopener">https://blog.csdn.net/taiyang1987912/article/details/41488395</a></p>
<p>2.将某个程序加入到环境变量，如python：<br>编译~/.bash_profile，在其中的PATH字段添加所需添加程序的绝对路径，eg:PATH=$PATH:$HOME/bin:/usr/local/python3/bin</p>
<p>3.开机启动某个程序，编辑/etc/rc.local,添加一行<code>/usr/local/nginx/sbin/nginx</code>, 保存后设置执行权限<code>chmod 755 rc.local</code> ，除此之外还可以通过systemctl的方式，参考<a href="https://www.cnblogs.com/heyongboke/p/9216510.html" target="_blank" rel="noopener">https://www.cnblogs.com/heyongboke/p/9216510.html</a></p>
<p>4.查看文件信息：ls -l filename，更多查看参考<a href="http://www.cnblogs.com/anliven/p/7944816.html" target="_blank" rel="noopener">http://www.cnblogs.com/anliven/p/7944816.html</a></p>
<p>5.修改主机名hostnamectl set-hostname name，详细见<a href="https://cloud.tencent.com/developer/article/1374708" target="_blank" rel="noopener">https://cloud.tencent.com/developer/article/1374708</a></p>
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<a href="javascript:void(0)" class="js-tag article-tag-list-link color1">linux</a>
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<a href="javascript:void(0)" class="js-tag article-tag-list-link color3">命令</a>
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<a href="javascript:void(0)" class="js-tag article-tag-list-link color3">操作</a>
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<a class="article-more-a" href="/2018/12/31/linux一些操作与命令/">展开全文 >></a>
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<a class="article-title" href="/2018/12/31/服务器搬迁/">重新开始</a>
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<a href="/2018/12/31/服务器搬迁/" class="archive-article-date">
<time datetime="2018-12-31T06:38:01.000Z" itemprop="datePublished"><i class="icon-calendar icon"></i>2018-12-31</time>
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<blockquote>
<p>大一时对linux操作不习惯用的腾讯云的windows server 2012，后来熟练linux交互环境后，日渐想换服务器，于是今天换了centos7，记录一下重新开始的过程。</p>
</blockquote>
<p>1.首先安装nginx，参考<a href="https://www.cnblogs.com/kaid/p/7640723.html" target="_blank" rel="noopener">https://www.cnblogs.com/kaid/p/7640723.html</a><br> ，注意：在这个连接中作者未开启ssl模块，若要开启ssl模块，则在./configure操作时改为应<code>./configure --prefix=/usr/local/nginx --with-http_stub_status_module --with-http_ssl_module</code>，然后再修改nginx/conf/nginx.conf，修改方式见文章nginx+hppts+django。</p>
<p>2.关于设置nginx开机自启，第一步安装连接中提到的编辑/etc/rc.local外还可以通过systemctl的方式，参考<a href="https://www.cnblogs.com/heyongboke/p/9216510.html" target="_blank" rel="noopener">https://www.cnblogs.com/heyongboke/p/9216510.html</a></p>
<p>3.将nginx添加到环境变量：<code>vim ~/.bash_profile</code>添加<code>PATH=$PATH:$HOME/bin:/usr/local/nginx/sbin</code><br>别忘了要以:分隔，保存退出后运行<code>source ~/.bash_profile</code>试修改生效</p>
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<article id="post-nginx+hppts+django" class="article article-type-post article-index" itemscope itemprop="blogPost">
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<a class="article-title" href="/2018/12/30/nginx+hppts+django/">nginx+https+django</a>
</h1>
<a href="/2018/12/30/nginx+hppts+django/" class="archive-article-date">
<time datetime="2018-12-30T03:20:13.000Z" itemprop="datePublished"><i class="icon-calendar icon"></i>2018-12-30</time>
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<blockquote>
<p>应用场景：微信小程序需要通过https协议对服务器发起请求，因此需要通过nginx配置ssl后转发443端口至django运行的8000端口</p>
</blockquote>
<p>步骤如下：</p>
<p>1.启动django项目：python manage.py runserver 127.0.0.1:8000</p>
<p>2.申请腾讯云免费ssl证书，下载证书，解压缩，将Nginx文件夹下的1_<a href="http://www.hellowmrliu.cn_bundle.crt和2_www.hellowmrliu.cn.key传到服务器。" target="_blank" rel="noopener">www.hellowmrliu.cn_bundle.crt和2_www.hellowmrliu.cn.key传到服务器。</a></p>
<p>3.前往<a href="https://www.djangoproject.com/download/" target="_blank" rel="noopener">https://www.djangoproject.com/download/</a> 下载nginx,下载完成后解压，将第一步中的两个文件复制到conf文件夹中，然后修改conf/nginx.conf，取消HPPTS SEVER下的注释，作如下修改，关于该配置文件的详细讲解，参考<a href="https://www.cnblogs.com/liang-wei/p/5849771.html：" target="_blank" rel="noopener">https://www.cnblogs.com/liang-wei/p/5849771.html：</a><br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br></pre></td><td class="code"><pre><span class="line">server {</span><br><span class="line"> listen 443 ssl;</span><br><span class="line"> server_name localhost;</span><br><span class="line"></span><br><span class="line"> ssl_certificate 1_www.hellowmrliu.cn_bundle.crt;</span><br><span class="line"> ssl_certificate_key 2_www.hellowmrliu.cn.key;</span><br><span class="line"></span><br><span class="line"> ssl_session_cache shared:SSL:1m;</span><br><span class="line"> ssl_session_timeout 5m;</span><br><span class="line"></span><br><span class="line"> ssl_ciphers HIGH:!aNULL:!MD5;</span><br><span class="line"> ssl_prefer_server_ciphers on;</span><br><span class="line"></span><br><span class="line"> location / {</span><br><span class="line"> proxy_pass http://127.0.0.1:8000;</span><br><span class="line"> root html;</span><br><span class="line"> index index.html index.htm;</span><br><span class="line"> }</span><br><span class="line">}</span><br></pre></td></tr></table></figure></p>
<p>4.完成上述步骤后，运行nginx即可将通过https协议访问443端口的流量全部转发至服务器本地的8000端口，也就是django运行的端口</p>
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<a class="article-title" href="/2018/11/28/django的ModelForm/">django Form做表单验证以及保存</a>
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<a href="/2018/11/28/django的ModelForm/" class="archive-article-date">
<time datetime="2018-11-28T10:28:38.000Z" itemprop="datePublished"><i class="icon-calendar icon"></i>2018-11-28</time>
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<blockquote>
<p>应用场景：处理表单的接口需要对提交的表单做验证以及处理</p>
</blockquote>
<p>view.py代码如下</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br></pre></td><td class="code"><pre><span class="line">from .forms import DeclareModelForm, DeclareForm</span><br><span class="line">from .models import UserProfile， DeclareProfile</span><br><span class="line"></span><br><span class="line">class Declaration(APIView):</span><br><span class="line"> @check_login</span><br><span class="line"> def get(self, request):</span><br><span class="line"> token_key_dict = get_qiniu_token_and_key()</span><br><span class="line"> return render(request, 'upload.html', token_key_dict)</span><br><span class="line"></span><br><span class="line"> @check_login</span><br><span class="line"> def post(self, request):</span><br><span class="line"> ret = BaseResponse()</span><br><span class="line"> if True:</span><br><span class="line"> form_querydict = request.POST</span><br><span class="line"> new_form_querydict = form_querydict.copy()</span><br><span class="line"> useropenid = request.session.get('user_openid')</span><br><span class="line"> userid = UserProfile.objects.filter(openid=useropenid).first().userid</span><br><span class="line"> new_form_querydict.__setitem__('sender', userid)</span><br><span class="line"> declare_form = DeclareForm(new_form_querydict)</span><br><span class="line"> declare_model_form = DeclareModelForm(new_form_querydict)</span><br><span class="line"> valid = declare_form.is_valid()</span><br><span class="line"> if valid == True:</span><br><span class="line"> declare_model_form.save()</span><br><span class="line"> ret.result['code'] = 2002</span><br><span class="line"> ret.result['message'] = 'save succeed'</span><br><span class="line"> ret.result['data'] = {'imgurl': new_form_querydict.get('imgurl')}</span><br><span class="line"> else:</span><br><span class="line"> result_dict = get_qiniu_token_and_key()</span><br><span class="line"> result_dict['form'] = declare_form</span><br><span class="line"> return render(request, 'upload.html', result_dict)</span><br><span class="line"> else:</span><br><span class="line"> ret.result['code'] = 4004</span><br><span class="line"> ret.result['error'] = 'Faild to upload'</span><br><span class="line"> return Response(ret.result)</span><br></pre></td></tr></table></figure>
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<article id="post-装饰器" class="article article-type-post article-index" itemscope itemprop="blogPost">
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<a class="article-title" href="/2018/11/28/装饰器/">使用装饰器验证登录</a>
</h1>
<a href="/2018/11/28/装饰器/" class="archive-article-date">
<time datetime="2018-11-28T10:00:54.000Z" itemprop="datePublished"><i class="icon-calendar icon"></i>2018-11-28</time>
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<blockquote>
<p>场景：某些接口需要在登录状态才能调用，为每个接口写太麻烦，因此采用装饰器，步骤如下：</p>
</blockquote>
<p>1.在当前对应的app下创建decrator.py文件，添加如下代码：<br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br></pre></td><td class="code"><pre><span class="line">def check_login(func):</span><br><span class="line"> def wrapper(self, request):</span><br><span class="line"> islogin = request.session.get('islogin')</span><br><span class="line"> if (islogin == True):</span><br><span class="line"> return func(self, request)</span><br><span class="line"> else:</span><br><span class="line"> data = {}</span><br><span class="line"> data['status'] = 4001</span><br><span class="line"> data['message'] = u'no login'</span><br><span class="line"> return HttpResponse(json.dumps(data), content_type="application/json")</span><br><span class="line"> return wrapper</span><br></pre></td></tr></table></figure></p>
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<a class="article-title" href="/2018/11/26/django_restful_framework/">django restful framework实现数据序列化和分页</a>
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<blockquote>
<p>1.安装pip install djangorestframework</p>
</blockquote>
<blockquote>
<p>2.在setting中将rest_framework注册搭到INSRALLED_APP元组中(django_project/settings.py)</p>
</blockquote>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br></pre></td><td class="code"><pre><span class="line">INSTALLED_APPS = [</span><br><span class="line"> 'django.contrib.admin',</span><br><span class="line"> 'django.contrib.auth',</span><br><span class="line"> 'django.contrib.contenttypes',</span><br><span class="line"> 'django.contrib.sessions',</span><br><span class="line"> 'django.contrib.messages',</span><br><span class="line"> 'django.contrib.staticfiles',</span><br><span class="line"> 'message',</span><br><span class="line"> 'users',</span><br><span class="line"> 'xadmin',</span><br><span class="line"> 'crispy_forms',</span><br><span class="line"> 'wechat_login',</span><br><span class="line"> 'rest_framework',</span><br><span class="line">]</span><br></pre></td></tr></table></figure>
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<a class="article-title" href="/2018/11/22/pychram永久激活/">pychram永久激活的最终解决方案</a>
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<a href="/2018/11/22/pychram永久激活/" class="archive-article-date">
<time datetime="2018-11-22T08:42:56.000Z" itemprop="datePublished"><i class="icon-calendar icon"></i>2018-11-22</time>
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<blockquote>
<p>最近pychram激活码到期了，没钱买正版，太贵了。。看到一大佬博客有解决方案，在此记录一下：<a href="https://blog.csdn.net/liu1152239/article/details/80374593" target="_blank" rel="noopener">https://blog.csdn.net/liu1152239/article/details/80374593</a></p>
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<a class="article-title" href="/2018/11/21/图片上传至七牛云/">一次有趣的前后端与七牛云的交互</a>
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<a href="/2018/11/21/图片上传至七牛云/" class="archive-article-date">
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<p><br></p>
<blockquote>
<p>场景：django写类似空间分享功能时，需要储存用户上传的图片，文章以及其他的一些内容，django的modle中内置有ImageFiled字段，实现将图片储存到本地，但是服务器空间有限，因此想将图片存在云服务商提供的空间，服务器存cdn加速外链。</p>
</blockquote>
<p>解决方案:用户在前端页面选择完图片后，通过触发时间onchange，触发ajax向七牛云发起post请求，并将七牛云返回的json数据中的key值与域名拼接事件，然后再将拼接后的url添加到name=img_url隐藏的input的value中。随后将正常提交表单。</p>
<blockquote>
<p>前端html代码<br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br></pre></td><td class="code"><pre><span class="line"><!DOCTYPE html></span><br><span class="line"><html lang="en" xmlns="http://www.w3.org/1999/html"></span><br><span class="line"><head></span><br><span class="line"> <meta charset="UTF-8"></span><br><span class="line"> <title>提交</title></span><br><span class="line"> <script src="https://code.jquery.com/jquery-3.3.1.min.js"></script></span><br><span class="line"> <script src="/static/js/upload_to_qiniu.js"></script></span><br><span class="line"></head></span><br><span class="line"><body></span><br><span class="line"> <form method="POST" action="http://0smallwhite0.vicp.io:16991/declare/" enctype="multipart/form-data"></span><br><span class="line"> <input name="key" id="key" type="hidden" value="{{ key }}"></span><br><span class="line"> <input name="token" id="token" type="hidden" value="{{ token }}"></span><br><span class="line"> <input name="file" id="file" type="file" onchange="ajaxform()"></br></span><br><span class="line"> <input name="towho" id="towho" type="text"></br></span><br><span class="line"> <input name="anonymous" id="anonymous" type="text"></br></span><br><span class="line"> <input name="content" id="content" type="text"></br></span><br><span class="line"> <input name="img_url" id="img_url" type="hidden" value=""></span><br><span class="line"> {% csrf_token %}</span><br><span class="line"> <input type="submit" id="submit" onclick="ajaxform()"></span><br><span class="line"> </form></span><br><span class="line"></body></span><br><span class="line"></html></span><br></pre></td></tr></table></figure></p>
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<article id="post-jdango七牛云回调实例" class="article article-type-post article-index" itemscope itemprop="blogPost">
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<a class="article-title" href="/2018/11/21/jdango七牛云回调实例/">django七牛云回调示例</a>
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<p>view如下，upload_img生成key，和token返回给前端表单，upload_status接受七牛云的回调信息fname和key，即上传的图片名和图片储存在七牛云的图片储存名<br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br></pre></td><td class="code"><pre><span class="line">def upload_img(self,request):</span><br><span class="line"> import qiniu</span><br><span class="line"> import uuid</span><br><span class="line"> result = self.jugelogin(request)</span><br><span class="line"> if 'errmsg' in result.keys():</span><br><span class="line"> return HttpResponse(result['errmsg'])</span><br><span class="line"> else:</span><br><span class="line"> useropenid = result['openid']</span><br><span class="line"> ACCESS_KEY = '七牛云access_key'</span><br><span class="line"> SECRET_KEY = '七牛云secret_key'</span><br><span class="line"> BUCKET_NAME = '七牛云仓库名'</span><br><span class="line"> key = str(uuid.uuid1()).replace('-', '') # 这里使用uuid作为保存在七牛里文件的名字。并去掉了uuid中的“-”</span><br><span class="line"> q = qiniu.Auth(ACCESS_KEY, SECRET_KEY)</span><br><span class="line"> token = q.upload_token(BUCKET_NAME, key, 7200, {'callbackUrl': '0smallwhite0.vicp.io:16991/upload_status/',</span><br><span class="line"> 'callbackBody': '{"name": "$(fname)", "key": "$(key)"}',</span><br><span class="line"> 'callbackBodyType': 'application/json',</span><br><span class="line"> 'mimeLimit': 'image/jpeg;image/png'})</span><br><span class="line"> return render_to_response('upload.html', {'token': token, 'key': key})</span><br><span class="line"></span><br><span class="line">def upload_status(self, request):</span><br><span class="line"> body = request.body</span><br><span class="line"> body = json.loads(body)</span><br><span class="line"> imgname = body['name']</span><br><span class="line"> imgkey = body['key']</span><br><span class="line"> return HttpResponse('200')</span><br></pre></td></tr></table></figure></p>
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