�??xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>&#35270;&#39057;&#22312;&#32447;&#57;&#57;&#114;&#101;&#44;&#20037;&#20037;&#31934;&#21697;&#20037;&#20037;&#57;&#57;&#31934;&#21697;&#20037;&#20037;&#44;&#27431;&#27954;&#20122;&#27954;&#19968;&#21306;</title><link>http://www.aygfsteel.com/hx9111/category/1758.html</link><description>生如夏花�Q�死如秋�?
生如夏花之绚烂，��d���U�叶之静(r��n)��?/description><language>zh-cn</language><lastBuildDate>Wed, 28 Feb 2007 08:19:46 GMT</lastBuildDate><pubDate>Wed, 28 Feb 2007 08:19:46 GMT</pubDate><ttl>60</ttl><item><title>读Rod Johnson的Without EJB 有感 �Q?�Q?/title><link>http://www.aygfsteel.com/hx9111/archive/2006/05/31/49367.html</link><dc:creator>我爱夏花,更爱�U�叶</dc:creator><author>我爱夏花,更爱�U�叶</author><pubDate>Wed, 31 May 2006 15:18:00 GMT</pubDate><guid>http://www.aygfsteel.com/hx9111/archive/2006/05/31/49367.html</guid><wfw:comment>http://www.aygfsteel.com/hx9111/comments/49367.html</wfw:comment><comments>http://www.aygfsteel.com/hx9111/archive/2006/05/31/49367.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/hx9111/comments/commentRss/49367.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/hx9111/services/trackbacks/49367.html</trackback:ping><description><![CDATA[
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				<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">手头一直有本书从买来就没有���M��下——�?/span>
				<span lang="EN-US" style="mso-bidi-font-weight: bold">expert one-on-one J2EE Development without EJB</span>
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								<span style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">以上�q�些都是从理�����度出发考虑的，�?/span>
								<span lang="EN-US" style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Rod Johnson</span>
								<span style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">是从实践的角度来考虑问题�Q�大学学�?ji��n)点哲学原理都运用在�q�里�?ji��n)。以前在设计�W�一个框架的时候没有太多的考虑到程序员的实用型�Q�只是�ؓ(f��)�?ji��n)设计而设计，最后把框架设计的及(qi��ng)其复杂，最后的�l�果只有�q�行重新设计�Q�进行框架的重构。而在设计中遇到的问题很多�?/span>
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						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">设计中常常应该遵�?/span>
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						<span lang="EN-US" style="mso-bidi-font-weight: bold">80%</span>
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						<span lang="EN-US" style="mso-bidi-font-weight: bold">20%</span>
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						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">�Q�我们的框架代号�Q�框架中的元数据�pȝ��来说把，本来是�ؓ(f��)�?ji��n)对�pȝ��中的所有元素的一个徏模过�E�，涉及(qi��ng)到显�C�模型徏模，业务模型建模�Q�数据模型徏模，工作���模型徏模，�Q�这个就好比在基���框架基础上又抽象��Z��层）(j��)�Q�我们在建模中就是考虑到那</span>
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						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">的模型徏模来描述�q?/span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">20%</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">的报表徏模，�q�样问题���q��单多�?ji��n)，对于报表的设计来��_(d��)��虽然有点�ȝ��(ch��)�Q�但是我们的设计可以适应大多数的情况。实际只要我们作一些辅助的工具���可以简化报表模型的建模�Q�这是我们在框架开发的后期发现的，�l�过实践证明我们当初的想法是真确的�?/span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">
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		<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 42pt; TEXT-INDENT: 21pt">
				<font face="Times New Roman">
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">�q�种情况�q�出现在我们当初在做一个业务系�l�的时的框架选择上，当时我们��Z��(ji��n)框架能够承受更大的负载度�Q�而考虑使用</span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">EJB</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">的多层开发（�q�运的是没有用实�?/span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">Bean</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">�Q�，�q���我们的开发量整整增加的一倍，�q�在不考虑���试的情况下。项目结束了(ji��n)上线使用�Q�用��h��本没有当初设想的�q�发量，我们当时真的�q�考虑�?/span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">Rod </span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">所说的是否能够在客��L(f��ng)��支持</span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">Swing</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">�E�序�Q�幸亏后来被否定�?ji��n)。有时候我们在设计中��L���q�寻完美�Q��ؓ(f��)�?ji��n)设计而设计，�q�种做法正如</span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">Rod</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">所说的是不�U�学的�?/span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">
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		<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 42pt">
				<font face="Times New Roman">
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">���单才是美�Q�因为简单出��C��(ji��n)</span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">POJO</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">对象�Q�因为简单出��C��(ji��n)</span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">Hibernater</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">�Q�因为简单出��C��(ji��n)</span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">Annotation</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">�Q�因为简单出��C��(ji��n)</span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">EJB3.0</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">。因为简单才�?/span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">java</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">的开源社区如火如��|��人声鼎沸�?/span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">
								<o:p>
								</o:p>
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		</p>
		<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 42pt">
				<span lang="EN-US" style="mso-bidi-font-weight: bold">
						<o:p> </o:p>
				</span>
		</p>
		<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 45pt; TEXT-INDENT: -21pt; mso-list: l0 level1 lfo1; tab-stops: list 45.0pt">
				<font face="Times New Roman">
						<span lang="EN-US" style="FONT-FAMILY: Wingdings; mso-bidi-font-weight: bold; mso-fareast-font-family: Wingdings; mso-bidi-font-family: Wingdings">
								<span style="mso-list: Ignore">̔<span style="FONT: 7pt 'Times New Roman'"><font size="3">        </font></span></span>
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						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">高��</span>
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		<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: 21pt">
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						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">有时候，设计者注重的是设计，�q�也是我们设计中常常存在的一�U�习(f��n)惯，�E�序员��L���q�求完美�Q�追�?/span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">perfect</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">�Q�而一个企业在完成��目中要的是生成率，要的是质量，一个功能用那种完美的框枉����?/span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">2</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">周的旉���才能开发完�Q�而��用简单的框架只需�?/span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">3</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">天的旉������可以完成了(ji��n)�Q�你说我们应该��用���U�框架�?/span>
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		</p>
		<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: 21pt">
				<font face="Times New Roman">
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">��d��在开发一个项目的时候，因�ؓ(f��)我们是和其他部门一起合作开发，在项目开始的调研当中�Q�我们极力推荐��用我们的</span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">JBrain</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">元数据框�Ӟ��而另��Z��个部门却�����使用</span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">JSF</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">所建立的框�Ӟ��</span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">JSF</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">刚出来，而且那个部门的�h员还没有太多的理�?/span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">JSF</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">的深��d��义，他们觉得</span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">JSF</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">非常好，非常的完���）(j��)�Q�最后因为我们的框架是黑盒的�Q�客户不��x��他们的项目绑��d��我们的框架上�Q�所以最后决定���?/span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">JSF</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">来设计框�Ӟ��不说开发一个企业��框架所需要的旉����Q�，�q�里我不是说</span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">JSF</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">不好�Q�我研究�q?/span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">JSF</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">�Q�觉得他的设计哲学真的很好，���其他的�l��g�?w��i)和生命周期设计的非常完���，���其他�?/span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">Render</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">机制�Q�真的就是我们以前在使用</span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">jsp Tag</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">的时候一直想要又没有的功能（我们框架中的昄���模型有很多思想是从他的�l��g数概念而来的）(j��)�Q�但是如果用</span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">jsf</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">开发企业��E�序�Q�而且是在国内�q�种客户要求非常苛刻的情况下是非�怸����的。因为我们的</span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">JSF</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">框架是在</span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">Apache </span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">�?/span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">MyFace</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">基础上开发的�Q�实际上后来他的标签我们没有用多���，大部分都是我们自己在他的基础上重新开发的。后来框架设计出来了(ji��n)�Q�生产率太低�Q�完成一个工作需要做很多很多的事�Q�我实在看不下去�?ji��n)，看着我周边的同事一边又一边的�Ҏ(gu��)���Q�而且��目�l�束前几乎是天天加班�?/span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">9</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">点）(j��)�Q�根据我们原有框架的元数据原理，写了(ji��n)一�?/span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">JSF</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">框架的代码生成机�Q�这才把生��率稍微提上了(ji��n)一炏V�?/span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">
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		<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: 21pt">
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						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">实际有时候我们设计框架的时候不必要考虑�q�多�Q�一定要从开发和实用的角度去考虑�Q�多考虑一下程序员的工作方式�?/span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">
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						</span>
				</font>
		</p>
		<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; TEXT-INDENT: 21pt">
				<span lang="EN-US" style="mso-bidi-font-weight: bold">
						<o:p> </o:p>
				</span>
		</p>
		<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt">
				<span lang="EN-US" style="mso-bidi-font-weight: bold">
						<span style="mso-tab-count: 1">       </span>
				</span>
				<font face="Times New Roman">
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">今天���写到这里，可能是和</span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">Rod</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">�?/span>
						<span lang="EN-US" style="mso-bidi-font-weight: bold">Without EJB</span>
						<span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">中的��x��产生�?ji��n)共鸣才有�?ji��n)�q�么多费话，其他的感触将在后�l�的随笔中写到。写�q�篇文章也是��Z��(ji��n)提醒自己开发的时候一定要从实际出发，一切的灉|��都是来源于实�늚��?/span>
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<img src ="http://www.aygfsteel.com/hx9111/aggbug/49367.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/hx9111/" target="_blank">我爱夏花,更爱�U�叶</a> 2006-05-31 23:18 <a href="http://www.aygfsteel.com/hx9111/archive/2006/05/31/49367.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>白话自己�?j��)中的设计模�?/title><link>http://www.aygfsteel.com/hx9111/archive/2005/06/16/6238.html</link><dc:creator>我爱夏花,更爱�U�叶</dc:creator><author>我爱夏花,更爱�U�叶</author><pubDate>Thu, 16 Jun 2005 14:07:00 GMT</pubDate><guid>http://www.aygfsteel.com/hx9111/archive/2005/06/16/6238.html</guid><wfw:comment>http://www.aygfsteel.com/hx9111/comments/6238.html</wfw:comment><comments>http://www.aygfsteel.com/hx9111/archive/2005/06/16/6238.html#Feedback</comments><slash:comments>3</slash:comments><wfw:commentRss>http://www.aygfsteel.com/hx9111/comments/commentRss/6238.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/hx9111/services/trackbacks/6238.html</trackback:ping><description><![CDATA[<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT color=#000000><FONT size=2><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">&nbsp;&nbsp;&nbsp;再一�ơ的看设计模式的时候，感觉自己对设计模式，有了(ji��n)一个进一步的理解�Q�自我感觉的</SPAN><SPAN lang=EN-US style="FONT-FAMILY: Wingdings; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold; mso-char-type: symbol; mso-symbol-font-family: Wingdings"><SPAN style="mso-char-type: symbol; mso-symbol-font-family: Wingdings">J</SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">�Q?/SPAN><SPAN lang=EN-US style="mso-bidi-font-weight: bold">.<BR><BR><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT color=#000000><FONT size=2><SPAN lang=EN-US style="mso-bidi-font-weight: bold"><SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">在数学计���中我们要求</SPAN><SPAN lang=EN-US style="mso-bidi-font-weight: bold">A</SPAN><SPAN lang=EN-US style="FONT-FAMILY: Wingdings; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold; mso-char-type: symbol; mso-symbol-font-family: Wingdings"><SPAN style="mso-char-type: symbol; mso-symbol-font-family: Wingdings">à</SPAN></SPAN><SPAN lang=EN-US style="mso-bidi-font-weight: bold">B</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">点的最短�\径，可能�?/SPAN><SPAN lang=EN-US style="mso-bidi-font-weight: bold">A</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">点到</SPAN><SPAN lang=EN-US style="mso-bidi-font-weight: bold">B</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">�Ҏ(gu��)��很多�U�走法，但是�q�求完美的我们（���其是程序员�Q�，��L��希望扑ֈ�一条最短的路径。设计模式也是相同，在设计中我们惌���扑ֈ�设计中的最短�\径，也就是设计的永恒之道�Q�就是设计模式中常说的无名的质）(j��)�Q�说白了(ji��n)�Q�就是如何设计才能�ɾpȝ��更容易扩张，更灵�z�，更稳定。模式追求的是一�U�最佳的解决�Ҏ(gu��)���Q�在�q�个�Ҏ(gu��)��的指��g���Q�我们能够跟好的��d��现我们所惌���实现的东�ѝ�?BR><BR></SPAN><SPAN lang=EN-US style="mso-bidi-font-weight: bold"><o:p></o:p></SPAN></FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT color=#000000><FONT size=2><SPAN lang=EN-US style="mso-bidi-font-weight: bold"><SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">数学计算的时候有一定的法则�Q���Y件设计的时候也是有一定的法则的，而这些法则，都是在追求��Y件设计的守恒定律时�Ş成的——什么开</SPAN><SPAN lang=EN-US style="mso-bidi-font-weight: bold">/</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">闭原则，面向接口原则�Q�依赖倒置原则�{�等�Q�但是��Y件设计中的原则也是可变的�Q�而且是时��d��展的�Q�要不然��׃���?x��)出玎ͼ�今天�?/SPAN><SPAN lang=EN-US style="mso-bidi-font-weight: bold">spring</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">非常火的场面�Q?/SPAN><SPAN lang=EN-US style="mso-bidi-font-weight: bold">Ioc</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">原则�?BR><BR></SPAN><SPAN lang=EN-US style="mso-bidi-font-weight: bold"><o:p></o:p></SPAN></FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT color=#000000><FONT size=2><SPAN lang=EN-US style="mso-bidi-font-weight: bold"><SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">数学计算是通过许多的公式推倒出�l�果的，但是我们求解的时候，�?x��)出现这�U�情况，</SPAN><SPAN lang=EN-US style="mso-bidi-font-weight: bold">C</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">�l�果�Q�是通过</SPAN><SPAN lang=EN-US style="mso-bidi-font-weight: bold">A</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">�?/SPAN><SPAN lang=EN-US style="mso-bidi-font-weight: bold">B</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">两个公式推导出来的，模式也是一��P��有一些较?y��u)��的模式�Q�而这些较?y��u)��的模式是一些较大的模式的基����?BR><BR></SPAN><SPAN lang=EN-US style="mso-bidi-font-weight: bold"><o:p></o:p></SPAN></FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT color=#000000><FONT size=2><SPAN lang=EN-US style="mso-bidi-font-weight: bold"><SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">在理解模式的时候我们可以从对象的生命周期来理解�?BR><BR></SPAN><SPAN lang=EN-US style="mso-bidi-font-weight: bold"><o:p></o:p></SPAN></FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT color=#000000><FONT size=2><SPAN lang=EN-US style="mso-bidi-font-weight: bold"><SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">对象产生的时候需要描�q�对象的属性，它的存在形式�Q�创建模式就是用来描�q�这个的�Q�而这个对象存在就�?x��)和其他对象发生联系�Q�就�?x��)和其他对象发生作用�Q�如何描�q�C��们之间的联系和作用就是结构模式要做的事了(ji��n)�Q�前面这些都是静(r��n)态的�Q�对象的存在�Q�不可能永远�?r��n)止不动的，它�?x��)�Ҏ(gu��)��自己的需要，完成一些动作，语言中还有动词，名词�Q��Ş容词之分呢！模式���p��语言一样需要有动词来描�q�对象，行�ؓ(f��)模式���是用来描述对象的行动的�Q?BR><BR></SPAN><SPAN lang=EN-US style="mso-bidi-font-weight: bold"><o:p></o:p></SPAN></FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT color=#000000><FONT size=2><SPAN lang=EN-US style="mso-bidi-font-weight: bold"><SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">设计模式�Q�实际就是一�U�设计中的语�a��Q�很多的最基本的模式，���是�l�成�q�种语言的基����Q�我们在理解模式的时候不能只是背模式�Q�而应该灵�zȝ���q�用他们�Q�让他们有机的结合在一��P��形成一个生动的句子。这个就好比我们学英语，不是光背一些单词，���p��写出一���好文章的，�q�需要我们有语感�Q�理解了(ji��n)以后才能写出来�?BR><BR></SPAN><SPAN lang=EN-US style="mso-bidi-font-weight: bold"><o:p></o:p></SPAN></FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT color=#000000><FONT size=2><SPAN lang=EN-US style="mso-bidi-font-weight: bold"><SPAN style="mso-tab-count: 1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">�q�个只是我对模式的一点点个�h的理解，不代表所有�h的观点！�Q�）(j��)</SPAN></FONT></FONT><SPAN lang=EN-US style="mso-bidi-font-weight: bold"><o:p></o:p></SPAN></P><img src ="http://www.aygfsteel.com/hx9111/aggbug/6238.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/hx9111/" target="_blank">我爱夏花,更爱�U�叶</a> 2005-06-16 22:07 <a href="http://www.aygfsteel.com/hx9111/archive/2005/06/16/6238.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item></channel></rss>                                                              <footer>
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