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java-web项目加密运行（支持window/linux）

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JAVA项目加密(Windows/Linux/Mac/龙芯系统)

视频讲解-Java调用DLL

PYTHON 中使用 GLOBAL引发的一系列问题

哪里出问题了python中，使用global会将全局变量设为本函数可用。同时，在函数内部访问变量会先本地再全局。在嵌套函数中，使用global会产生不合常理的行为。上代码：In[96]:defx():b=12defy():globala,ba=1b=2y()print"b=",b....:In[97]:a=111In[98]:delbIn[99]:x()b=12In[100]:aOut[100]:1In[101]:bOut[101]:2而在函数x()中，没

系统 2019-09-27 17:37:54 2235

Python

Python max内置函数详细介绍

Pythonmax内置函数max(iterable,*[,key,default])max(arg1,arg2,*args[,key])Returnthelargestiteminaniterableorthelargestoftwoormorearguments.Ifonepositionalargumentisprovided,itshouldbeaniterable.Thelargestitemintheiterableisreturned.Iftw

系统 2019-09-27 17:37:52 2235

编程技术

避免把判断处理放入 WHERE 条件

问题描述业务需求如下：有表A，在查询的时候，需要根据标志确定是查询大于某个值的记录，还是小于某个值的记录A、一般的处理方法IF@a=0

系统 2019-08-29 23:23:38 2235

编程技术

并发编程基础概念(一) IO-同步，异步，阻塞，非

原文链接：http://blog.csdn.net/historyasamirror/article/details/4270633作为程序员从应用层面来考虑的四个概念同步阻塞IO：在这个模型中，应用程序（application）为了执行这个read操作，会调用相应的一个systemcall，将系统控制权交给kernel，然后就进行等待（这其实就是被阻塞了）。kernel开始执行这个systemcall，执行完毕后会向应用程序返回响应，应用程序得到响应后，

系统 2019-08-29 23:17:51 2235

编程技术

struts+spring+hibernate的web应用 Dao层代码编

让我们打好了架子，接下来就来编写代码了。在编码之前，我们需要先自行了解strust,spring,hibernate基础知识，后面的文章将不会过多的介绍这些框架的基础知识。整个项目由Dao,Services,Web三层组成，Dao层主要通过hibernate来操作数据库，Service层主要体现了业务，事务的处理，Web层由struts来控制。整个项目的控制交由spring管理。现在的这个小项目除了完成基本的添删改查，还有一个简单的分

系统 2019-08-29 22:41:00 2235

编程技术

图像转字符串

学习地址写道http://myrpsh.spaces.live.com/blog/cns!10BEB08F8F3CBC84!10449.entry?wa=wsignin1.0http://www.photo2text.com/http://topic.csdn.net/t/20060729/21/4914143.html#http://www.cnblogs.com/yangbin1005/archive/2008/05/14/1197347.htmlht

系统 2019-08-29 22:07:18 2235

编程技术

一个功能齐全的DataGrid分页例子

下面的这个例子提供了DataGrid的分页功能。aspx代码和CoheBehind代码分别如下，注意更改数据录连接字符串。结果如下：C#版本例子DataGridPaging.aspx<%@Pagelanguage="c#"EnableViewState="true"Codebehind="DataGridPaging.aspx.cs"AutoEventWireup="false"Inherits="eMeng.Exam.DataGridPagin</span> <p class="auth-span"> <span class="muted"><i class="fa fa-user"></i><span class="zj-icon-text">系统</span></span> <span class="muted"><i class="fa fa-clock-o"></i><span class="zj-icon-text">2019-08-29 22:05:05</span></span> <span class="muted"><i class="fa fa-eye"></i><span class="zj-icon-text">2235</span></span>  </p> </article><article class="excerpt"> <header> <a title="编程技术" class="label label-important zj-del-target" href="/category/30">编程技术<i class="label-arrow"></i></a> <h2> <a class="zj-titles zj-del-target" href="/article/13089" title="一堂如何提高代码质量的培训课" target="_blank" onclick="return recordId('',)">一堂如何提高代码质量的培训课 </a> </h2> </header> <div class="focus"> <a class="zj-del-target" href="/article/13089" target="_blank"><img style="width: 200px; height: 123px;" class="thumb" src="/Public/static/images/article/18.jpg" alt="" title=""></a> </div> <span class="note" onclick="if (jq.browser.versions.mobile) {window.location.href='/article/13089';}else{window.open('/article/13089');}" style="cursor: pointer;">今天这堂培训课讲什么呢？我既不讲Spring，也不讲Hibernate，更不讲Ext，我不讲任何一个具体的技术。我们抛开任何具体的技术，来谈谈如何提高代码质量。如何提高代码质量，相信不仅是在座所有人苦恼的事情，也是所有软件项目苦恼的事情。如何提高代码质量呢，我认为我们首先要理解什么是高质量的代码。高质量代码的三要素我们评价高质量代码有三要素：可读性、可维护性、可变更性。我们的代码要一个都不能少地达到了这三要素的要求才能算高质量的代码。1.可读性强一提到可读</span> <p class="auth-span"> <span class="muted"><i class="fa fa-user"></i><span class="zj-icon-text">系统</span></span> <span class="muted"><i class="fa fa-clock-o"></i><span class="zj-icon-text">2019-08-29 21:58:58</span></span> <span class="muted"><i class="fa fa-eye"></i><span class="zj-icon-text">2235</span></span>  </p> </article><article class="excerpt"> <header> <a title="编程技术" class="label label-important zj-del-target" href="/category/30">编程技术<i class="label-arrow"></i></a> <h2> <a class="zj-titles zj-del-target" href="/article/11549" title="浅析Struts1" target="_blank" onclick="return recordId('',)">浅析Struts1 </a> </h2> </header> <div class="focus"> <a class="zj-del-target" href="/article/11549" target="_blank"><img style="width: 200px; height: 123px;" class="thumb" src="/Public/static/images/article/13.jpg" alt="" title=""></a> </div> <span class="note" onclick="if (jq.browser.versions.mobile) {window.location.href='/article/11549';}else{window.open('/article/11549');}" style="cursor: pointer;">基本概念Struts是Apache基金会Jakarta项目组的一个OpenSource项目，它采用MVC模式，能够很好地帮助java开发者利用J2EE开发Web应用。和其他的java架构一样，Struts也是面向对象设计，将MVC模式"分离显示逻辑和业务逻辑"的能力发挥得淋漓尽致。Structs框架的核心是一个弹性的控制层，基于如JavaServlets，JavaBeans，ResourceBundles与XML等标准技术，以及JakartaCommons</span> <p class="auth-span"> <span class="muted"><i class="fa fa-user"></i><span class="zj-icon-text">系统</span></span> <span class="muted"><i class="fa fa-clock-o"></i><span class="zj-icon-text">2019-08-12 09:29:49</span></span> <span class="muted"><i class="fa fa-eye"></i><span class="zj-icon-text">2235</span></span>  </p> </article><article class="excerpt"> <header> <a title="各行各业" class="label label-important zj-del-target" href="/category/38">各行各业<i class="label-arrow"></i></a> <h2> <a class="zj-titles zj-del-target" href="/article/10551" title="LR测试工具性能指标详解" target="_blank" onclick="return recordId('',)">LR测试工具性能指标详解 </a> </h2> </header> <div class="focus"> <a class="zj-del-target" href="/article/10551" target="_blank"><img style="width: 200px; height: 123px;" class="thumb" src="/Public/static/images/article/14.jpg" alt="" title=""></a> </div> <span class="note" onclick="if (jq.browser.versions.mobile) {window.location.href='/article/10551';}else{window.open('/article/10551');}" style="cursor: pointer;">这篇文章将对LoadRunner测试工具的性能指标从以下三点进行详解。第一点、Web资源分析是从服务器入手对Web服务器的性能分析。1、HitsperSecond"每秒点击次数",即使运行场景过程中虚拟用户每秒向Web服务器提交的HTTP请求数。通过它可以评估虚拟用户产生的负载量，如将其和"平均事务响应时间"图比较，可以查看点击次数对事务性能产生的影响。通过对查看"每秒点击次数",可以判断系统是否稳定。系统点击率下降通常表明服务器的响应速度在变慢，需进一步</span> 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