第二章、天天生鲜注册功能基本实现
第二章 天天生鲜项目实现基本功能
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本项目关键词：天天生鲜注册实现源码
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天天生鲜项目学习视频
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本内容持续更新直至天天生鲜项目完成！
本文主要内容：实现注册基本逻辑
本设计不涉及中间过程，直接上手最后的功能，所以自己对着视频分模块学习，把这个整个模块学习完再导入下面的代码
本文中用到的Django的一些说明书
类试图使用手册
章节目录
第一章、天天生鲜项目框架搭建
第二章、天天生鲜注册功能实现
第一步
首先将static文件夹下面的register.html复制到templates中，由于CSS文件以及js文件与其不在同一路径，我们需要将头文件做如下改变
# 将头部文件做如下改变 PS:这个注释最好不要复制进去
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
"http://www.w3.org/1999/xhtml" xml:lang="en">
{% load static %}
-equiv="Content-Type" content="text/html;charset=UTF-8">
天天生鲜<span class="token operator">-</span>注册<<span class="token operator">/</span>title>
<link rel=<span class="token string">"stylesheet"</span> <span class="token function">type</span>=<span class="token string">"text/css"</span> href=<span class="token string">"{% static 'css/reset.css' %}"</span>>
<link rel=<span class="token string">"stylesheet"</span> <span class="token function">type</span>=<span class="token string">"text/css"</span> href=<span class="token string">"{% static 'css/main.css' %}"</span>>
<script <span class="token function">type</span>=<span class="token string">"text/javascript"</span> src=<span class="token string">"{% static js/jquery-1.12.4.min.js %}"</span>><<span class="token operator">/</span>script>
<script <span class="token function">type</span>=<span class="token string">"text/javascript"</span> src=<span class="token string">"{% static 'js/register.js' %}"</span>><<span class="token operator">/</span>script>
<<span class="token operator">/</span>head>
</code></pre>
<p>另外，如果前端代码中，存在图片连接，由于图片存放在static中，因此图片也需要做如下改变，只要是图片连接都要做这种改变</p>
<pre><code class="prism language-powershell"><a <span class="token keyword">class</span>=<span class="token string">"reg_logo"</span>><img src=<span class="token string">"{% static 'images/logo02.png' %}"</span>><<span class="token operator">/</span>a>
</code></pre>
<p>最后我们的前端页面register.html中的是这样的，当然中间还存在很多改变，自己看视频，防止敲错，直接复制即可</p>
<pre><code class="prism language-html"><span class="token doctype"><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>html</span> <span class="token attr-name">xmlns</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>http://www.w3.org/1999/xhtml<span class="token punctuation">"</span></span> <span class="token attr-name"><span class="token namespace">xml:</span>lang</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>en<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
{% load static %}
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>head</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>meta</span> <span class="token attr-name">http-equiv</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>Content-Type<span class="token punctuation">"</span></span> <span class="token attr-name">content</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>text/html;charset=UTF-8<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>title</span><span class="token punctuation">></span></span>天天生鲜-注册<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>title</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>link</span> <span class="token attr-name">rel</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>stylesheet<span class="token punctuation">"</span></span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>text/css<span class="token punctuation">"</span></span> <span class="token attr-name">href</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>{% static <span class="token punctuation">'</span>css/reset.css<span class="token punctuation">'</span> %}<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>link</span> <span class="token attr-name">rel</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>stylesheet<span class="token punctuation">"</span></span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>text/css<span class="token punctuation">"</span></span> <span class="token attr-name">href</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>{% static <span class="token punctuation">'</span>css/main.css<span class="token punctuation">'</span> %}<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>script</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>text/javascript<span class="token punctuation">"</span></span> <span class="token attr-name">src</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>{% static <span class="token punctuation">'</span>js/jquery-1.12.4.min.js<span class="token punctuation">'</span> %}<span class="token punctuation">"</span></span><span class="token punctuation">></span></span><span class="token script language-javascript"></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>script</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>script</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>text/javascript<span class="token punctuation">"</span></span> <span class="token attr-name">src</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>{% static <span class="token punctuation">'</span>js/register.js<span class="token punctuation">'</span> %}<span class="token punctuation">"</span></span><span class="token punctuation">></span></span><span class="token script language-javascript"></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>script</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>head</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>body</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>div</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>register_con<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>div</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>l_con fl<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>a</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>reg_logo<span class="token punctuation">"</span></span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>a</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>reg_logo<span class="token punctuation">"</span></span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>img</span> <span class="token attr-name">src</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>{% static <span class="token punctuation">'</span>images/logo02.png<span class="token punctuation">'</span> %}<span class="token punctuation">"</span></span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>a</span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>a</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>div</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>reg_slogan<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>足不出户 · 新鲜每一天<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>div</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>div</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>reg_banner<span class="token punctuation">"</span></span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>div</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>div</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>div</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>r_con fr<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>div</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>reg_title clearfix<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>h1</span><span class="token punctuation">></span></span>用户注册<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>h1</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>a</span> <span class="token attr-name">href</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>#<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>登录<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>a</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>div</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>div</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>reg_form clearfix<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>form</span> <span class="token attr-name">method</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>post<span class="token punctuation">"</span></span> <span class="token attr-name">action</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>/user/register<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
{% csrf_token %}
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>ul</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>li</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>label</span><span class="token punctuation">></span></span>用户名:<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>label</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>input</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>text<span class="token punctuation">"</span></span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>user_name<span class="token punctuation">"</span></span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>user_name<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>span</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>error_tip<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>提示信息<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>span</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>li</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>li</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>label</span><span class="token punctuation">></span></span>密码:<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>label</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>input</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>password<span class="token punctuation">"</span></span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>pwd<span class="token punctuation">"</span></span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>pwd<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>span</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>error_tip<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>提示信息<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>span</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>li</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>li</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>label</span><span class="token punctuation">></span></span>确认密码:<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>label</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>input</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>password<span class="token punctuation">"</span></span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>cpwd<span class="token punctuation">"</span></span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>cpwd<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>span</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>error_tip<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>提示信息<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>span</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>li</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>li</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>label</span><span class="token punctuation">></span></span>邮箱:<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>label</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>input</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>text<span class="token punctuation">"</span></span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>email<span class="token punctuation">"</span></span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>email<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>span</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>error_tip<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>提示信息<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>span</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>li</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>li</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>agreement<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>input</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>checkbox<span class="token punctuation">"</span></span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>allow<span class="token punctuation">"</span></span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>allow<span class="token punctuation">"</span></span> <span class="token attr-name">checked</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>checked<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>label</span><span class="token punctuation">></span></span>同意”天天生鲜用户使用协议“<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>label</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>span</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>error_tip2<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>提示信息<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>span</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>li</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>li</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>reg_sub<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>input</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>submit<span class="token punctuation">"</span></span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>注 册<span class="token punctuation">"</span></span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span><span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>li</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>ul</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>form</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>div</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>div</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>div</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>div</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>footer no-mp<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>div</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>foot_link<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>a</span> <span class="token attr-name">href</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>#<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>关于我们<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>a</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>span</span><span class="token punctuation">></span></span>|<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>span</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>a</span> <span class="token attr-name">href</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>#<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>联系我们<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>a</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>span</span><span class="token punctuation">></span></span>|<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>span</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>a</span> <span class="token attr-name">href</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>#<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>招聘人才<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>a</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>span</span><span class="token punctuation">></span></span>|<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>span</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>a</span> <span class="token attr-name">href</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>#<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>友情链接<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>a</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>div</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>p</span><span class="token punctuation">></span></span>CopyRight © 2016 北京天天生鲜信息技术有限公司 All Rights Reserved<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>p</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>p</span><span class="token punctuation">></span></span>电话：010-****888 京ICP备*******8号<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>p</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>div</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>body</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>html</span><span class="token punctuation">></span></span>
</code></pre>
<p>然后再user/views.py中添加如下代码</p>
<pre><code class="prism language-powershell"><span class="token keyword">from</span> django<span class="token punctuation">.</span>shortcuts import render<span class="token punctuation">,</span>redirect
<span class="token keyword">from</span> django<span class="token punctuation">.</span>urls import reverse <span class="token comment">#反向解析函数</span>
<span class="token keyword">from</span> django<span class="token punctuation">.</span>core<span class="token punctuation">.</span>mail import send_mail <span class="token comment">#导入发送邮件函数</span>
<span class="token keyword">from</span> django<span class="token punctuation">.</span>views<span class="token punctuation">.</span>generic import View <span class="token comment">#导入类视图</span>
<span class="token keyword">from</span> django<span class="token punctuation">.</span>http import HttpResponse
<span class="token keyword">from</span> django<span class="token punctuation">.</span>conf import settings
<span class="token keyword">from</span> user<span class="token punctuation">.</span>models import User
<span class="token keyword">from</span> itsdangerous import TimedJSONWebSignatureSerializer as Serializer <span class="token comment">#导入用于用户信息加密的插件并且给它取个别名为Serializer</span>
<span class="token keyword">from</span> itsdangerous import SignatureExpired <span class="token comment">#导入异常</span>
import re <span class="token comment">#导入正则匹配模块用于检验邮箱</span>
<span class="token comment"># Create your views here.</span>
<span class="token keyword">class</span> RegisterView<span class="token punctuation">(</span>View<span class="token punctuation">)</span>:
<span class="token string">"'注册类试图'"</span>
def get<span class="token punctuation">(</span>self<span class="token punctuation">,</span>request<span class="token punctuation">)</span>:
<span class="token string">"'显示注册页面'"</span>
<span class="token keyword">return</span> render<span class="token punctuation">(</span>request<span class="token punctuation">,</span> <span class="token string">'register.html'</span><span class="token punctuation">)</span>
def post<span class="token punctuation">(</span>self<span class="token punctuation">,</span>request<span class="token punctuation">)</span>:
<span class="token string">"'进行注册处理'"</span>
<span class="token comment"># 接收数据</span>
username = request<span class="token punctuation">.</span>POST<span class="token punctuation">.</span>get<span class="token punctuation">(</span><span class="token string">'user_name'</span><span class="token punctuation">)</span>
password = request<span class="token punctuation">.</span>POST<span class="token punctuation">.</span>get<span class="token punctuation">(</span><span class="token string">'pwd'</span><span class="token punctuation">)</span>
email = request<span class="token punctuation">.</span>POST<span class="token punctuation">.</span>get<span class="token punctuation">(</span><span class="token string">'email'</span><span class="token punctuation">)</span>
allow = request<span class="token punctuation">.</span>POST<span class="token punctuation">.</span>get<span class="token punctuation">(</span><span class="token string">'allow'</span><span class="token punctuation">)</span>
<span class="token comment"># 进行数据校验</span>
<span class="token keyword">if</span> not all<span class="token punctuation">(</span><span class="token namespace">[username, password, email]</span><span class="token punctuation">)</span>:
<span class="token comment"># 数据不完整</span>
<span class="token keyword">return</span> render<span class="token punctuation">(</span>request<span class="token punctuation">,</span> <span class="token string">'register.html'</span><span class="token punctuation">,</span> <span class="token punctuation">{</span><span class="token string">'errmsg'</span>: <span class="token string">'数据不完整'</span><span class="token punctuation">}</span><span class="token punctuation">)</span>
<span class="token comment"># 检验邮箱</span>
<span class="token comment"># 如果不是一个邮箱，即邮箱形式不合法</span>
<span class="token keyword">if</span> not re<span class="token punctuation">.</span>match<span class="token punctuation">(</span>r<span class="token string">'^[a-z0-9][\w.\-]*@[a-z0-9\-]+(\.[a-z]{2,5}){1,2}$'</span><span class="token punctuation">,</span> email<span class="token punctuation">)</span>:
<span class="token comment"># 邮箱格式不正确</span>
<span class="token keyword">return</span> render<span class="token punctuation">(</span>request<span class="token punctuation">,</span> <span class="token string">'register.html'</span><span class="token punctuation">,</span> <span class="token punctuation">{</span><span class="token string">'errmsg'</span>: <span class="token string">'邮箱不合法'</span><span class="token punctuation">}</span><span class="token punctuation">)</span>
<span class="token keyword">if</span> allow <span class="token operator">!</span>= <span class="token string">'on'</span>:
<span class="token comment"># 是否同意协议</span>
<span class="token keyword">return</span> render<span class="token punctuation">(</span>request<span class="token punctuation">,</span> <span class="token string">'register.html'</span><span class="token punctuation">,</span> <span class="token punctuation">{</span><span class="token string">'errmsg'</span>: <span class="token string">'请同意协议'</span><span class="token punctuation">}</span><span class="token punctuation">)</span>
<span class="token comment"># 校验用户名是否重复</span>
<span class="token keyword">try</span>:
user= User<span class="token punctuation">.</span>objects<span class="token punctuation">.</span>get<span class="token punctuation">(</span>username=username<span class="token punctuation">)</span>
except User<span class="token punctuation">.</span>DoesNotExist:
user = None
<span class="token keyword">if</span> user:
<span class="token comment"># 用户名已存在</span>
<span class="token keyword">return</span> render<span class="token punctuation">(</span>request<span class="token punctuation">,</span> <span class="token string">'register.html'</span><span class="token punctuation">,</span> <span class="token punctuation">{</span><span class="token string">'errmsg'</span>: <span class="token string">'用户名已存在'</span><span class="token punctuation">}</span><span class="token punctuation">)</span>
<span class="token comment"># 进行业务处理：进行用户注册</span>
user = User<span class="token punctuation">.</span>objects<span class="token punctuation">.</span>create_user<span class="token punctuation">(</span>username<span class="token punctuation">,</span> email<span class="token punctuation">,</span> password<span class="token punctuation">)</span>
user<span class="token punctuation">.</span>is_active = 0 <span class="token comment"># 不让他自动激活</span>
user<span class="token punctuation">.</span>save<span class="token punctuation">(</span><span class="token punctuation">)</span>
<span class="token comment">#发送激活邮件，包含激活链接：</span>
<span class="token comment">#激活连接中需要包含用户的身份信息，并且要把身份信息进行加密</span>
<span class="token comment">#加密用户的身份信息，生成激活token</span>
serializer=Serializer<span class="token punctuation">(</span>settings<span class="token punctuation">.</span>SECRET_KEY<span class="token punctuation">,</span>3600<span class="token punctuation">)</span>
info=<span class="token punctuation">{</span><span class="token string">'confirm'</span>:user<span class="token punctuation">.</span>id<span class="token punctuation">}</span>
token=serializer<span class="token punctuation">.</span>dumps<span class="token punctuation">(</span>info<span class="token punctuation">)</span> <span class="token comment">#返回的是字节</span>
token=token<span class="token punctuation">.</span>decode<span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token comment">#进行字节解码</span>
<span class="token comment"># 组织邮件信息</span>
subject = <span class="token string">'天天生鲜欢迎信息'</span>
message = <span class="token string">'欢迎注册'</span>
sender = settings<span class="token punctuation">.</span>EMAIL_FROM <span class="token comment"># 发件人</span>
receiver = <span class="token namespace">[email]</span>
html_message = <span class="token string">'<h1>%s欢迎您成为为天天生鲜交易市场注册会员</h1>请点击下面链接激活您的账户<br/><a href="http://127.0.0.1:8000/user/active/%s">http://127.0.0.1:8000/user/active/%s</a>'</span> <span class="token operator">%</span> <span class="token punctuation">(</span>username<span class="token punctuation">,</span> token<span class="token punctuation">,</span> token<span class="token punctuation">)</span>
send_mail<span class="token punctuation">(</span>subject<span class="token punctuation">,</span> message<span class="token punctuation">,</span> sender<span class="token punctuation">,</span> receiver<span class="token punctuation">,</span> html_message=html_message<span class="token punctuation">)</span>
<span class="token comment"># 返回应答，跳转到首页</span>
<span class="token keyword">return</span> redirect<span class="token punctuation">(</span>reverse<span class="token punctuation">(</span><span class="token string">'goods:index'</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
<span class="token keyword">class</span> ActiveView<span class="token punctuation">(</span>View<span class="token punctuation">)</span>:
<span class="token string">"'用户激活'"</span>
def get<span class="token punctuation">(</span>self<span class="token punctuation">,</span>request<span class="token punctuation">,</span>token<span class="token punctuation">)</span>:
<span class="token string">"'进行用户激活'"</span>
<span class="token comment"># 解密参数，获取要激活的用户信息</span>
serializer = Serializer<span class="token punctuation">(</span>settings<span class="token punctuation">.</span>SECRET_KEY<span class="token punctuation">,</span> 3600<span class="token punctuation">)</span>
<span class="token keyword">try</span>:
info=serializer<span class="token punctuation">.</span>loads<span class="token punctuation">(</span>token<span class="token punctuation">)</span>
<span class="token comment">#获取待激活用户的id</span>
user_id=info<span class="token punctuation">[</span><span class="token string">'confirm'</span><span class="token punctuation">]</span>
<span class="token comment">#根据用户id获取用户信息</span>
user=User<span class="token punctuation">.</span>objects<span class="token punctuation">.</span>get<span class="token punctuation">(</span>id=user_id<span class="token punctuation">)</span>
user<span class="token punctuation">.</span>is_active=1
user<span class="token punctuation">.</span>save<span class="token punctuation">(</span><span class="token punctuation">)</span>
<span class="token comment">#跳转登录页面</span>
<span class="token keyword">return</span> redirect<span class="token punctuation">(</span>reverse<span class="token punctuation">(</span><span class="token string">'user:login'</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
except SignatureExpired as e:
<span class="token comment">#激活链接已过期</span>
<span class="token keyword">return</span> HttpResponse<span class="token punctuation">(</span><span class="token string">'激活链接已过期'</span><span class="token punctuation">)</span>
</code></pre>
<p>然后在user/urls.py中添加如下内容太</p>
<pre><code class="prism language-powershell"><span class="token keyword">from</span> django<span class="token punctuation">.</span>urls import path<span class="token punctuation">,</span>re_path
<span class="token keyword">from</span> user<span class="token punctuation">.</span>views import RegisterView<span class="token punctuation">,</span>ActiveView
urlpatterns = <span class="token punctuation">[</span>
path<span class="token punctuation">(</span><span class="token string">'register'</span><span class="token punctuation">,</span>RegisterView<span class="token punctuation">.</span>as_view<span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">,</span>name=<span class="token string">'register'</span><span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token comment">#注册</span>
re_path<span class="token punctuation">(</span><span class="token string">'active/(?P<token>.*)$'</span><span class="token punctuation">,</span>ActiveView<span class="token punctuation">.</span>as_view<span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">,</span>name=<span class="token string">'active'</span><span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token comment">#用户激活</span>
<span class="token punctuation">]</span>
</code></pre>
<p>由于可能用到首页，所以在goods/urls.py中添加如下内容：</p>
<pre><code class="prism language-powershell"><span class="token keyword">from</span> django<span class="token punctuation">.</span>urls import path
<span class="token keyword">from</span> goods import views
urlpatterns = <span class="token punctuation">[</span>
path<span class="token punctuation">(</span><span class="token string">''</span><span class="token punctuation">,</span>views<span class="token punctuation">.</span>index<span class="token punctuation">,</span>name=<span class="token string">'index'</span><span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token comment">#首页</span>
<span class="token punctuation">]</span>
</code></pre>
<p>在goods/views.py中添加如下内容</p>
<pre><code class="prism language-powershell"><span class="token keyword">from</span> django<span class="token punctuation">.</span>shortcuts import render
<span class="token comment"># Create your views here.</span>
def index<span class="token punctuation">(</span>request<span class="token punctuation">)</span>:
<span class="token string">"'首页'"</span>
<span class="token keyword">return</span> render<span class="token punctuation">(</span>request<span class="token punctuation">,</span><span class="token string">'index.html'</span><span class="token punctuation">)</span>
</code></pre>
<h5>第二步、一些插件的安装</h5>
<p>发送邮件时，为了对有些链接进行加密，我们需要安装加密插件"itsdangerous"，直接运行：</p>
<pre><code class="prism language-powershell">pip install itsdangerous <span class="token comment">#第一步安装插件</span>
<span class="token keyword">from</span> itsdangerous import TimedJSONWebSignatureSerializer as Serializer <span class="token comment">#第二步 在user/views.py导入这个</span>
<span class="token comment"># 第三步，在settings中做如下配置,记得看视频改成自己的邮箱配置啊！</span>
<span class="token comment"># 发送邮件配置 </span>
EMAIL_BACKEND = <span class="token string">'django.core.mail.backends.smtp.EmailBackend'</span>
<span class="token comment"># smpt服务地址</span>
EMAIL_HOST = <span class="token string">'smtp.163.com'</span>
EMAIL_PORT = 25
<span class="token comment"># 发送邮件的邮箱</span>
EMAIL_HOST_USER = <span class="token string">'smartli_it@163.com'</span>
<span class="token comment"># 在邮箱中设置的客户端授权密码</span>
EMAIL_HOST_PASSWORD = <span class="token string">'smartli123'</span>
<span class="token comment"># 收件人看到的发件人</span>
EMAIL_FROM = <span class="token string">'天天生鲜<smartli_it@163.com>'</span>
</code></pre>
<p>mysql数据库应用小技巧</p>
<pre><code class="prism language-mysql"># 1、如何删除数据库中某个表中的数据，比如从df_user表中删除id=1的用户
delete from df_user where id=1
# 2、查看df_user表中的全部数据
select * from df_user;
select * from df_user \G; #这个可以让数据一行行的展示
# 3、如何查看表的结构,比如df_user表
desc df_user;
</code></pre>
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title="python如何无密码登录_服务器之间实现免密登录的简易教程" target="_blank">python如何无密码登录_服务器之间实现免密登录的简易教程</a>
<span class="text-muted">行者无疆0123</span>
<a class="tag" taget="_blank" href="/search/python%E5%A6%82%E4%BD%95%E6%97%A0%E5%AF%86%E7%A0%81%E7%99%BB%E5%BD%95/1.htm">python如何无密码登录</a>
<div>今天这篇文章主要是教会大家如何实现服务器之间的免密登录。1、先在所有服务器上执行命令：ssh-keygen-tdsa-P''-f~/.ssh/id_dsamaster服务器slave1服务器slave2服务器2、而后在所有服务器上执行命令：cat~/.ssh/id_dsa.pub>>~/.ssh/authorized_keysmaster服务器slave1服务器slave2服务器3、之后将每台服务</div>
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title="DRF框架使用djangorestframework-simplejwt实现自定义用户类的token校验" target="_blank">DRF框架使用djangorestframework-simplejwt实现自定义用户类的token校验</a>
<span class="text-muted">lj907722644</span>
<a class="tag" taget="_blank" href="/search/Python/1.htm">Python</a><a class="tag" taget="_blank" href="/search/python/1.htm">python</a><a class="tag" taget="_blank" href="/search/django/1.htm">django</a><a class="tag" taget="_blank" href="/search/jwt/1.htm">jwt</a><a class="tag" taget="_blank" href="/search/DRF/1.htm">DRF</a><a class="tag" taget="_blank" href="/search/simplejwt/1.htm">simplejwt</a>
<div>1.安装simplejwt库并修改settings.py安装simplejwtpipinstalldjangorestframeworkpipinstalldjangorestframework-simplejwt修改settings.py注册应用INSTALLED_APPS=[...'rest_framework','rest_framework_simplejwt',]设置jwt鉴权REST_</div>
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title="DRF框架使用djangorestframework-simplejwt实现自定义用户类的登录逻辑" target="_blank">DRF框架使用djangorestframework-simplejwt实现自定义用户类的登录逻辑</a>
<span class="text-muted">lj907722644</span>
<a class="tag" taget="_blank" href="/search/Python/1.htm">Python</a><a class="tag" taget="_blank" href="/search/python/1.htm">python</a><a class="tag" taget="_blank" href="/search/django/1.htm">django</a><a class="tag" taget="_blank" href="/search/simplejwt/1.htm">simplejwt</a><a class="tag" taget="_blank" href="/search/token/1.htm">token</a>
<div>1.token校验生成并校验token，参考上一篇文章：https://blog.csdn.net/u013071014/article/details/144562716?spm=1001.2014.3001.55022.新建role、menu子模块新建role、menu这两个子模块在PyCharm->Tools->Runmanage.pyTask中执行命令#创建role子模块startappr</div>
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title="python读取bashrc变量不生效问题" target="_blank">python读取bashrc变量不生效问题</a>
<span class="text-muted">鸭梨山大哎</span>
<a class="tag" taget="_blank" href="/search/linux/1.htm">linux</a><a class="tag" taget="_blank" href="/search/python/1.htm">python</a><a class="tag" taget="_blank" href="/search/python/1.htm">python</a><a class="tag" taget="_blank" href="/search/%E5%BC%80%E5%8F%91%E8%AF%AD%E8%A8%80/1.htm">开发语言</a>
<div>修改/etc/environment然后重启终端即可/etc/environment是Linux系统中用于设置全局环境变量的配置文件。它通常用于定义系统范围内所有用户和进程共享的环境变量。与用户级别的配置文件（如.bashrc或.bash_profile）不同，/etc/environment中的环境变量对所有用户和会话生效。1./etc/environment的作用全局生效：在/etc/envi</div>
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title="tk grid布局" target="_blank">tk grid布局</a>
<span class="text-muted">鸭梨山大哎</span>
<a class="tag" taget="_blank" href="/search/python/1.htm">python</a><a class="tag" taget="_blank" href="/search/python/1.htm">python</a>
<div>tkinter是Python的标准GUI库，用于创建图形用户界面。grid是tkinter中一种常用的布局管理器，它允许你以网格（行和列）的方式排列控件。grid布局非常灵活，适合创建复杂的界面。1.基本用法grid布局的核心思想是将窗口划分为行和列的网格，然后将控件放置在这些网格中。每个控件可以占据一个或多个单元格。示例：简单的网格布局importtkinterastkroot=tk.Tk()#</div>
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<li><a href="/article/1891833614740549632.htm"
title="使用 python框架FastAPI搭配Nacos 构建网关服务" target="_blank">使用 python框架FastAPI搭配Nacos 构建网关服务</a>
<span class="text-muted">xiaohu9606</span>
<a class="tag" taget="_blank" href="/search/python/1.htm">python</a><a class="tag" taget="_blank" href="/search/fastapi/1.htm">fastapi</a><a class="tag" taget="_blank" href="/search/%E6%95%B0%E6%8D%AE%E5%BA%93/1.htm">数据库</a>
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<span class="text-muted">悟空空心</span>
<a class="tag" taget="_blank" href="/search/csrf/1.htm">csrf</a><a class="tag" taget="_blank" href="/search/%E5%89%8D%E7%AB%AF/1.htm">前端</a>
<div>Forbidden(403)CSRFverificationfailed.Requestaborted.HelpReasongivenforfailure:CSRFtokenmissing.Ingeneral,thiscanoccurwhenthereisagenuineCrossSiteRequestForgery,orwhenDjango’sCSRFmechanismhasnotbeenuse</div>
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title="ssm毕业设计基于SSM框架的中医养生系统设计与实现[文档+开题+PPT" target="_blank">ssm毕业设计基于SSM框架的中医养生系统设计与实现[文档+开题+PPT</a>
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<a class="tag" taget="_blank" href="/search/%E8%AF%BE%E7%A8%8B%E8%AE%BE%E8%AE%A1/1.htm">课程设计</a>
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title="如何在在 CentOS 中安装 OLama" target="_blank">如何在在 CentOS 中安装 OLama</a>
<span class="text-muted">gzgenius</span>
<a class="tag" taget="_blank" href="/search/%E6%80%9D%E8%B7%AF/1.htm">思路</a><a class="tag" taget="_blank" href="/search/%E4%BA%BA%E5%B7%A5%E6%99%BA%E8%83%BD/1.htm">人工智能</a>
<div>在CentOS中安装OLama是一个相对直接的过程。以下是详细的步骤：步骤1：安装依赖项在安装OLama之前，需要先安装一些必要的依赖项，包括编译器、框架和工具。sudoapt-getupdate&&sudoapt-getinstall-y\build-essential\python3\python3-setuptools\cmake\libboost-dev\libboost-system-d</div>
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title="深入浅出Java Annotation(元注解和自定义注解）" target="_blank">深入浅出Java Annotation(元注解和自定义注解）</a>
<span class="text-muted">Josh_Persistence</span>
<a class="tag" taget="_blank" href="/search/Java+Annotation/1.htm">Java Annotation</a><a class="tag" taget="_blank" href="/search/%E5%85%83%E6%B3%A8%E8%A7%A3/1.htm">元注解</a><a class="tag" taget="_blank" href="/search/%E8%87%AA%E5%AE%9A%E4%B9%89%E6%B3%A8%E8%A7%A3/1.htm">自定义注解</a>
<div>一、基本概述
Annontation是Java5开始引入的新特征。中文名称一般叫注解。它提供了一种安全的类似注释的机制，用来将任何的信息或元数据（metadata）与程序元素（类、方法、成员变量等）进行关联。
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title="mysql优化特定类型的查询" target="_blank">mysql优化特定类型的查询</a>
<span class="text-muted">annan211</span>
<a class="tag" taget="_blank" href="/search/java/1.htm">java</a><a class="tag" taget="_blank" href="/search/%E5%B7%A5%E4%BD%9C/1.htm">工作</a><a class="tag" taget="_blank" href="/search/mysql/1.htm">mysql</a>
<div>
本节所介绍的查询优化的技巧都是和特定版本相关的，所以对于未来mysql的版本未必适用。
1 优化count查询
对于count这个函数的网上的大部分资料都是错误的或者是理解的都是一知半解的。在做优化之前我们先来看看
真正的count()函数的作用到底是什么。
count()是一个特殊的函数，有两种非常不同的作用，他可以统计某个列值的数量，也可以统计行数。
在统</div>
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title="MAC下安装多版本JDK和切换几种方式" target="_blank">MAC下安装多版本JDK和切换几种方式</a>
<span class="text-muted">棋子chessman</span>
<a class="tag" taget="_blank" href="/search/jdk/1.htm">jdk</a>
<div>环境：
MAC AIR,OS X 10.10,64位
历史：
过去 Mac 上的 Java 都是由 Apple 自己提供，只支持到 Java 6，并且OS X 10.7 开始系统并不自带（而是可选安装）（原自带的是1.6）。
后来 Apple 加入 OpenJDK 继续支持 Java 6，而 Java 7 将由 Oracle 负责提供。
在终端中输入jav</div>
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title="javaScript （1）" target="_blank">javaScript （1）</a>
<span class="text-muted">Array_06</span>
<a class="tag" taget="_blank" href="/search/JavaScript/1.htm">JavaScript</a><a class="tag" taget="_blank" href="/search/java/1.htm">java</a><a class="tag" taget="_blank" href="/search/%E6%B5%8F%E8%A7%88%E5%99%A8/1.htm">浏览器</a>
<div>JavaScript
1、运算符
运算符就是完成操作的一系列符号，它有七类： 赋值运算符（=,+=,-=,*=,/=,%=,<<=,>>=,|=,&=）、算术运算符(+,-,*,/,++,--,%)、比较运算符(>,<,<=,>=,==,===,!=,!==)、逻辑运算符(||,&&,!)、条件运算(?:)、位</div>
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title="国内顶级代码分享网站" target="_blank">国内顶级代码分享网站</a>
<span class="text-muted">袁潇含</span>
<a class="tag" taget="_blank" href="/search/java/1.htm">java</a><a class="tag" taget="_blank" href="/search/jdk/1.htm">jdk</a><a class="tag" taget="_blank" href="/search/oracle/1.htm">oracle</a><a class="tag" taget="_blank" href="/search/.net/1.htm">.net</a><a class="tag" taget="_blank" href="/search/PHP/1.htm">PHP</a>
<div> 现在国内很多开源网站感觉都是为了利益而做的
当然利益是肯定的,否则谁也不会免费的去做网站
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title="Elasticsearch、MongoDB和Hadoop比较" target="_blank">Elasticsearch、MongoDB和Hadoop比较</a>
<span class="text-muted">随意而生</span>
<a class="tag" taget="_blank" href="/search/mongodb/1.htm">mongodb</a><a class="tag" taget="_blank" href="/search/hadoop/1.htm">hadoop</a><a class="tag" taget="_blank" href="/search/%E6%90%9C%E7%B4%A2%E5%BC%95%E6%93%8E/1.htm">搜索引擎</a>
<div>
IT界在过去几年中出现了一个有趣的现象。很多新的技术出现并立即拥抱了“大数据”。稍微老一点的技术也会将大数据添进自己的特性，避免落大部队太远，我们看到了不同技术之间的边际的模糊化。假如你有诸如Elasticsearch或者Solr这样的搜索引擎，它们存储着JSON文档，MongoDB存着JSON文档，或者一堆JSON文档存放在一个Hadoop集群的HDFS中。你可以使用这三种配</div>
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title="mac os 系统科研软件总结" target="_blank">mac os 系统科研软件总结</a>
<span class="text-muted">张亚雄</span>
<a class="tag" taget="_blank" href="/search/mac+os/1.htm">mac os</a>
<div>1.1 Microsoft Office for Mac 2011
大客户版，自行搜索。
1.2 Latex （MacTex）:
系统环境：https://tug.org/mactex/
&nb</div>
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<span class="text-muted">AdyZhang</span>
<a class="tag" taget="_blank" href="/search/maven/1.htm">maven</a>
<div>1. 三套生命周期 Maven拥有三套相互独立的生命周期，它们分别为clean，default和site。 每个生命周期包含一些阶段，这些阶段是有顺序的，并且后面的阶段依赖于前面的阶段，用户和Maven最直接的交互方式就是调用这些生命周期阶段。 以clean生命周期为例，它包含的阶段有pre-clean, clean 和 post</div>
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<span class="text-muted">aijuans</span>
<a class="tag" taget="_blank" href="/search/Jenkins/1.htm">Jenkins</a>
<div>1. 将Jenkins程序目录copy过去 源程序在/export/data/tomcatRoot/ofctest-jenkins.jd.com下面 tar -cvzf jenkins.tar.gz ofctest-jenkins.jd.com &</div>
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<span class="text-muted">ayaoxinchao</span>
<a class="tag" taget="_blank" href="/search/request/1.htm">request</a><a class="tag" taget="_blank" href="/search/Inputstream/1.htm">Inputstream</a>
<div>问题：在使用HTTP协议实现应用间接口通信时，服务端读取客户端请求过来的数据，会用到request.getInputStream()，第一次读取的时候可以读取到数据，但是接下来的读取操作都读取不到数据
原因： 1. 一个InputStream对象在被读取完成后，将无法被再次读取，始终返回-1； 2. InputStream并没有实现reset方法（可以重</div>
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title="数据库SQL优化大总结之 百万级数据库优化方案" target="_blank">数据库SQL优化大总结之 百万级数据库优化方案</a>
<span class="text-muted">BigBird2012</span>
<a class="tag" taget="_blank" href="/search/SQL%E4%BC%98%E5%8C%96/1.htm">SQL优化</a>
<div>网上关于SQL优化的教程很多，但是比较杂乱。近日有空整理了一下，写出来跟大家分享一下，其中有错误和不足的地方，还请大家纠正补充。
这篇文章我花费了大量的时间查找资料、修改、排版，希望大家阅读之后，感觉好的话推荐给更多的人，让更多的人看到、纠正以及补充。
1.对查询进行优化，要尽量避免全表扫描，首先应考虑在 where 及 order by 涉及的列上建立索引。
2.应尽量避免在 where </div>
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<span class="text-muted">bijian1013</span>
<a class="tag" taget="_blank" href="/search/java/1.htm">java</a><a class="tag" taget="_blank" href="/search/json/1.htm">json</a>
<div> 在项目中难免会用java处理json格式的数据，因此封装了一个JSONUtil工具类。
JSONUtil.java
package com.bijian.json.study;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;</div>
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title="[Zookeeper学习笔记之六]Zookeeper源代码分析之Zookeeper.WatchRegistration" target="_blank">[Zookeeper学习笔记之六]Zookeeper源代码分析之Zookeeper.WatchRegistration</a>
<span class="text-muted">bit1129</span>
<a class="tag" taget="_blank" href="/search/zookeeper/1.htm">zookeeper</a>
<div>Zookeeper类是Zookeeper提供给用户访问Zookeeper service的主要API，它包含了如下几个内部类
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/**
* Register a watcher for a particular p</div>
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<span class="text-muted">bit1129</span>
<a class="tag" taget="_blank" href="/search/scala/1.htm">scala</a>
<div>何为部分应用函数？
Partially applied function: A function that’s used in an expression and that misses some of its arguments.For instance, if function f has type Int => Int => Int, then f and f(1) are p</div>
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<span class="text-muted">ronin47</span>
<a class="tag" taget="_blank" href="/search/tomcat/1.htm">tomcat</a>
<div>Tomcat报的错太含糊了，什么错都没报出来，只提示了Error listenerStart。为了调试，我们要获得更详细的日志。可以在WEB-INF/classes目录下新建一个文件叫logging.properties，内容如下
Java代码
handlers = org.apache.juli.FileHandler, java.util.logging.ConsoleHa</div>
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<span class="text-muted">BrokenDreams</span>
<a class="tag" taget="_blank" href="/search/%E5%AE%9E%E7%8E%B0/1.htm">实现</a>
<div> 今天有群友发了一个问题，要求不用加减符号(包括负号)来实现加减法。
分析一下，先看最简单的情况，假设1+1，按二进制算的话结果是10，可以看到从右往左的第一位变为0，第二位由于进位变为1。
</div>
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title="读《研磨设计模式》-代码笔记-状态模式-State" target="_blank">读《研磨设计模式》-代码笔记-状态模式-State</a>
<span class="text-muted">bylijinnan</span>
<a class="tag" taget="_blank" href="/search/java/1.htm">java</a><a class="tag" taget="_blank" href="/search/%E8%AE%BE%E8%AE%A1%E6%A8%A1%E5%BC%8F/1.htm">设计模式</a>
<div>声明： 本文只为方便我个人查阅和理解，详细的分析以及源代码请移步 原作者的博客http://chjavach.iteye.com/
/*
当一个对象的内在状态改变时允许改变其行为，这个对象看起来像是改变了其类
状态模式主要解决的是当控制一个对象状态的条件表达式过于复杂时的情况
把状态的判断逻辑转移到表示不同状态的一系列类中，可以把复杂的判断逻辑简化
如果在</div>
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<a class="tag" taget="_blank" href="/search/CUDA/1.htm">CUDA</a>
<div>调用CUDA的核函数时指定block 和 thread大小，该大小可以是dim3类型的（三维数组），只用一维时可以是usigned int型的。
以下程序验证了当block或thread大小超出硬件允许值时会产生异常！！！GPU根本不会执行运算！！！
所以验证结果的正确性很重要！！！
在VS中创建CUDA项目会有一个模板，里面有更详细的状态验证。
以下程序在K5000GPU上跑的。</div>
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2012-10-17T05:54:54.293+0800: 739594.224: [GC 739606.508: [ParNew: 996800K->110720K(996800K), 178.8826900 secs] 3700</div>
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安装maven之前，要先安装jdk及配置JAVA_HOME环境变量。这个安装和配置java环境不用多说。
maven下载地址：http://maven.apache.org/download.html，目前最新的是这个apache-maven-3.2.5-bin.zip，然后解压在任意位置，最好地址中不要带中文字符，这个做java 的都知道，地址中出现中文会出现很多</div>
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<a class="tag" taget="_blank" href="/search/PHP/1.htm">PHP</a>
<div>
对于PHP网站安全主要存在这样几种攻击方式:1、命令注入(Command Injection)2、eval注入(Eval Injection)3、客户端脚本攻击(Script Insertion)4、跨网站脚本攻击(Cross Site Scripting, XSS)5、SQL注入攻击(SQL injection)6、跨网站请求伪造攻击(Cross Site Request Forgerie</div>
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<a class="tag" taget="_blank" href="/search/GridView/1.htm">GridView</a>
<div>public function searchWithRelated() {
$criteria = new CDbCriteria;
$criteria->together = true; //without th</div>
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<a class="tag" taget="_blank" href="/search/java%E9%9B%86%E5%90%88/1.htm">java集合</a>
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<a class="tag" taget="_blank" href="/search/nginx/1.htm">nginx</a>
<div>近日有一需求，需要在一台主机上用nginx部署2个php应用，分别是wordpress和wiki，探索了半天，终于部署好了，下面把过程记录下来。
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<div>ubuntu创建账号的方式通常用到两种：useradd 和adduser . 本人尝试了useradd方法，步骤如下：
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使用useradd时，如果后面不加任何参数的话，如：sudo useradd sysadm 创建出来的用户将是默认的三无用户：无home directory ,无密码,无系统shell。
顾应该如下操作：
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<a class="tag" taget="_blank" href="/search/nginx/1.htm">nginx</a><a class="tag" taget="_blank" href="/search/lua/1.htm">lua</a>
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代码下载地址：http://www.zuidaima.com/share/1772648445103104.htm
有两种流行Spring定时器配置：Java的Timer类和OpenSymphony的Quartz。
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首先继承jav</div>
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<a class="tag" taget="_blank" href="/search/linux/1.htm">linux</a>
<div> 一、df显示文件系统的使用情况，与du比較，就是更全盘化。 最经常使用的就是 df -T，显示文件系统的使用情况并显示文件系统的类型。 举比例如以下： [root@localhost ~]# df -T Filesystem Type &n</div>
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<div>在写DAO层时，觉得从Cursor里一个一个的取出字段值再装到VO(值对象)里太麻烦了，就写了一个工具类，用到了反射，可以把查询记录的值装到对应的VO里，也可以生成该VO的List。
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考虑到Android的性能问题，VO没有使用Setter和Getter，而是直接用public的属性。
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<a class="tag" taget="_blank" href="/search/oracle/1.htm">oracle</a><a class="tag" taget="_blank" href="/search/sql/1.htm">sql</a><a class="tag" taget="_blank" href="/search/%E5%B7%A5%E4%BD%9C/1.htm">工作</a>
<div> 这是我在学习Oracle是用到的Employee表，在该笔记中用到的就是这张表，大家可以用它来学习和练习。
drop table Employee;
-- 员工信息表
create table Employee(
-- 员工编号
EmpNo number(3) primary key,
-- 姓</div>
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