�??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>&#20122;&#27954;&#31119;&#21033;&#35270;&#39057;&#19968;&#21306;&#44;&#32508;&#21512;&#20037;&#20037;&#20122;&#27954;&#44;&#20122;&#27954;&#34588;&#33216;&#97;&#118;&#20081;&#30721;&#20037;&#20037;&#31934;&#21697;</title><link>http://www.aygfsteel.com/love1563/</link><description>自强不息</description><language>zh-cn</language><lastBuildDate>Sat, 05 Jul 2025 11:49:02 GMT</lastBuildDate><pubDate>Sat, 05 Jul 2025 11:49:02 GMT</pubDate><ttl>60</ttl><item><title>从菜鸟走向大数据高手</title><link>http://www.aygfsteel.com/love1563/archive/2015/12/22/428778.html</link><dc:creator>love1563</dc:creator><author>love1563</author><pubDate>Tue, 22 Dec 2015 03:23:00 GMT</pubDate><guid>http://www.aygfsteel.com/love1563/archive/2015/12/22/428778.html</guid><wfw:comment>http://www.aygfsteel.com/love1563/comments/428778.html</wfw:comment><comments>http://www.aygfsteel.com/love1563/archive/2015/12/22/428778.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/love1563/comments/commentRss/428778.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/love1563/services/trackbacks/428778.html</trackback:ping><description><![CDATA[<span style="text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; display: inline !important; font: 13px/19px Verdana, Geneva, Arial, Helvetica, sans-serif; white-space: normal; float: none; letter-spacing: normal; color: rgb(75,75,75); word-spacing: 0px; -webkit-text-stroke-width: 0px">大数据是用scala语言�Q�和java有些不同又比java强大�Q�省��M��很多�J�琐的东西，scala中的的接口用trait来定义，不同于java的接口，trait中可以有抽象�Ҏ��也可以有不抽象方法。scala中的�Ҏ��中还可以定义�Ҏ���Q�这在java中是从来没有的�?/span><br style="text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; font: 13px/19px Verdana, Geneva, Arial, Helvetica, sans-serif; white-space: normal; letter-spacing: normal; color: rgb(75,75,75); word-spacing: 0px; -webkit-text-stroke-width: 0px" /><span style="text-transform: none; background-color: rgb(255,255,255); text-indent: 0px; display: inline !important; font: 13px/19px Verdana, Geneva, Arial, Helvetica, sans-serif; white-space: normal; float: none; letter-spacing: normal; color: rgb(75,75,75); word-spacing: 0px; -webkit-text-stroke-width: 0px">大数据未来几�q�发展的重点方向�Q�大数据战略已经在十八届五中全会上作为重�Ҏ��略方向，中国在大数据斚w��才刚刚�v步，但是在美国已�l���生了上千亿的市场价倹{���D个例子，���国通用公司是一个生产飞机发动机的一个公司，�q�家公司在飞机发动机的每一个零部�g上都安装了传感器�Q�这些传感器在飞机发动机�q�作的同时不断的把发动机状态的数据传到通用公司的云�q�_��上，通用公司又有很多数据分析中心专门接受�q�些数据�Q�根据大数据的分析可以随时掌握每一家航�I�公司发动机的飞行状况，可以告知�q�些航空公司发动机的哪些部�g需要检修或保养�Q�避免飞��Z��故，通过�q�种服务通用公司��׃�生了几百亿美元的产倹{�?/span><br style="text-transform: none; 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摘要: &nbsp;&nbsp;<a href='http://www.aygfsteel.com/love1563/archive/2015/02/27/423088.html'>阅读全文</a><img src ="http://www.aygfsteel.com/love1563/aggbug/423088.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/love1563/" target="_blank">love1563</a> 2015-02-27 19:30 <a href="http://www.aygfsteel.com/love1563/archive/2015/02/27/423088.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>团队���理�Q�领��D��的五个致命错误</title><link>http://www.aygfsteel.com/love1563/archive/2014/02/18/409991.html</link><dc:creator>love1563</dc:creator><author>love1563</author><pubDate>Tue, 18 Feb 2014 08:45:00 GMT</pubDate><guid>http://www.aygfsteel.com/love1563/archive/2014/02/18/409991.html</guid><wfw:comment>http://www.aygfsteel.com/love1563/comments/409991.html</wfw:comment><comments>http://www.aygfsteel.com/love1563/archive/2014/02/18/409991.html#Feedback</comments><slash:comments>3</slash:comments><wfw:commentRss>http://www.aygfsteel.com/love1563/comments/commentRss/409991.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/love1563/services/trackbacks/409991.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要: &nbsp;&nbsp;<a href='http://www.aygfsteel.com/love1563/archive/2014/02/18/409991.html'>阅读全文</a><img src ="http://www.aygfsteel.com/love1563/aggbug/409991.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/love1563/" target="_blank">love1563</a> 2014-02-18 16:45 <a href="http://www.aygfsteel.com/love1563/archive/2014/02/18/409991.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>控制_22_分钟的会议时�?/title><link>http://www.aygfsteel.com/love1563/archive/2013/12/28/408145.html</link><dc:creator>love1563</dc:creator><author>love1563</author><pubDate>Sat, 28 Dec 2013 02:34:00 GMT</pubDate><guid>http://www.aygfsteel.com/love1563/archive/2013/12/28/408145.html</guid><wfw:comment>http://www.aygfsteel.com/love1563/comments/408145.html</wfw:comment><comments>http://www.aygfsteel.com/love1563/archive/2013/12/28/408145.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/love1563/comments/commentRss/408145.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/love1563/services/trackbacks/408145.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要: &nbsp;&nbsp;<a href='http://www.aygfsteel.com/love1563/archive/2013/12/28/408145.html'>阅读全文</a><img src ="http://www.aygfsteel.com/love1563/aggbug/408145.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/love1563/" target="_blank">love1563</a> 2013-12-28 10:34 <a href="http://www.aygfsteel.com/love1563/archive/2013/12/28/408145.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>高效 Java Web 开发框�?JessMA v3.3.1 Beta-1 发布 .</title><link>http://www.aygfsteel.com/love1563/archive/2013/11/24/406735.html</link><dc:creator>love1563</dc:creator><author>love1563</author><pubDate>Sat, 23 Nov 2013 23:49:00 GMT</pubDate><guid>http://www.aygfsteel.com/love1563/archive/2013/11/24/406735.html</guid><wfw:comment>http://www.aygfsteel.com/love1563/comments/406735.html</wfw:comment><comments>http://www.aygfsteel.com/love1563/archive/2013/11/24/406735.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/love1563/comments/commentRss/406735.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/love1563/services/trackbacks/406735.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要: &nbsp;&nbsp;&nbsp;&nbsp;JessMA�Q�原名：Portal-Basic�Q�是一套功能完备的高性能&nbsp;Full-Stack&nbsp;Web&nbsp;应用开发框�Ӟ��内置可扩展的&nbsp;MVC&nbsp;Web&nbsp;基础架构�?nbsp;DAO&nbsp;数据库访问组�Ӟ��内部已提供了&nbsp;Hibernate、MyBatis&nbsp;�?nbsp;JDBC...&nbsp;&nbsp;<a href='http://www.aygfsteel.com/love1563/archive/2013/11/24/406735.html'>阅读全文</a><img src ="http://www.aygfsteel.com/love1563/aggbug/406735.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/love1563/" target="_blank">love1563</a> 2013-11-24 07:49 <a href="http://www.aygfsteel.com/love1563/archive/2013/11/24/406735.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>ITPUB索引�?/title><link>http://www.aygfsteel.com/love1563/archive/2013/09/30/404643.html</link><dc:creator>love1563</dc:creator><author>love1563</author><pubDate>Mon, 30 Sep 2013 03:42:00 GMT</pubDate><guid>http://www.aygfsteel.com/love1563/archive/2013/09/30/404643.html</guid><wfw:comment>http://www.aygfsteel.com/love1563/comments/404643.html</wfw:comment><comments>http://www.aygfsteel.com/love1563/archive/2013/09/30/404643.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/love1563/comments/commentRss/404643.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/love1563/services/trackbacks/404643.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 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代码分析领域�Q?/p><ul><li>�~�码标准</li><li>代码重复</li><li>代码覆盖�?/li><li>依赖��分�?/li><li>复杂度监�?/li></ul><p>可以用接下来的几个灵�zȝ�� Eclipse 插�g来揭�C����些分析领域：</p><ul><li>CheckStyle�Q�用于编码标�?/li><li>PMD �?CPD�Q�帮助发��C��码重�?/li><li>Coverlipse�Q�测量代码覆盖率</li><li>JDepend�Q�提供依赖项分析</li><li>Eclipse Metric 插�g�Q�有效地查出复杂�?/li></ul><div   id="wmqeeuq"   class="ibm-container ibm-alt-header dw-container-sidebar"><h2>Eclipse 不是您的构徏�pȝ��</h2><div   id="wmqeeuq"   class="ibm-container-body">				&nbsp; 使用 Eclipse 插�g与您���这些检验工��L��于构������E��ƈ不矛盾。事实上�Q�您惌������保的是�Q�下列���?Eclipse 插�g的规则就是应用到构徏�q�程中的规则�?/div></div><p><a name="N100B9"><span id="wmqeeuq"    class="atitle">安装 Eclipse 插�g</span></a></p><p>安装 Eclipse 插�g再简单不�q�了�Q�只需要几个步骤。在开始之前，最好把该插件下载站点的 URL 准备好。表 1 是本文用到的插�g的列表： </p><br /><a name="N100C2"><strong>�?1. 代码改进插�g和相应的下蝲站点 URL</strong></a><br /><table class="ibm-data-table" border="0" cellspacing="0" summary="Table using a caption tag, alternating color rows" cellpadding="0" width="100%"><caption><tbody><tr><th>工具</th><th>目的</th><th>Eclipse 插�g�?URL</th></tr><tr><td class="tb-row">CheckStyle</td><td>�~�码标准分析</td><td>http://eclipse-cs.sourceforge.net/update/</td></tr><tr class="alt-row"><td class="tb-row">Coverlipse</td><td>���试代码覆盖�?/td><td>http://coverlipse.sf.net/update</td></tr><tr><td class="tb-row">CPD</td><td>复制/�_�脓����?/td><td>http://pmd.sourceforge.net/eclipse/</td></tr><tr class="alt-row"><td class="tb-row">JDepend</td><td>包依赖项分析</td><td>http://andrei.gmxhome.de/eclipse/</td></tr><tr><td class="tb-row">Metrics</td><td>复杂度监�?/td><td>http://metrics.sourceforge.net/update</td></tr></tbody></table><p>知道了这些有用插件的下蝲地址后，安装插�g���是一个极���单的�q�程。启�?Eclipse�Q�然后遵循下列步骤：</p><ol><li>选择 <strong>Help | Software Updates | Find and Install</strong>�Q�如�?1 所�C�：<br /><br /><br /><br /><a name="fig1"><strong>�?1. ��L���q�安�?Eclipse 插�g</strong></a><br /><img alt="��L���q�安�?Eclipse 插�g" src="https://www.ibm.com/developerworks/cn/java/j-ap01117/findinstall-plugin.jpg" width="572" height="200" /><br /><br /><br /><br /></li><li>选择 <strong>Search for new features to install</strong> 单选按�?单击 <strong>Next</strong>�?<br /><br /></li><li>单击 <strong>New Remote Site</strong>�Q�输入要安装的插件名�?URL�Q�参见图 2�Q�，单击 <strong>OK</strong>�Q�然后单�?<strong>Finish</strong> 来显�C?Eclipse 更新���理器�?br /><br /><br /><br /><a name="fig2"><strong>�?2. 配置新的�q�程站点</strong></a><br /><img alt="配置新的�q�程站点" src="https://www.ibm.com/developerworks/cn/java/j-ap01117/pmd-remotesite.jpg" width="353" height="151" /><br /><br /><br /><br /></li><li>�?Eclipse 更新���理器中�Q�有一个查看插件各斚w���Ҏ��的选项。我通常选择�����，如图 3 所�C�。选择您需要的选项�q�单�?<strong>Finish</strong>。Eclipse 现在安装该插件。您需要重�?Eclipse 实例�?<br /><br /><br /><br /><a name="fig3"><strong>�?3. 安装 Eclipse 插�g</strong></a><br /><img alt="安装 Eclipse 插�g" src="https://www.ibm.com/developerworks/cn/java/j-ap01117/pmd-updates.jpg" width="572" height="476" /><br /><br /></li></ol><p>请遵循上�q�这些步骤来安装其他�?Eclipse 插�g�Q�只需改变插�g名和相应的下载位�|�即可�?</p><div   id="wmqeeuq"   class="ibm-alternate-rule"><hr /></div><p class="ibm-ind-link ibm-back-to-top"><a class="ibm-anchor-up-link" >回页�?/a></p><p><a name="N10193"><span id="wmqeeuq"    class="atitle">�?CheckStyle 校正标准</span></a></p><p>代码库的可维护性直接媄响着软�g的整个成本。另外，不佳的可�l�护性还会让开发�h员十分头痛（�q�而导致开发�h员的�~�Z���Q?#8212;&#8212; 代码���容易修改，���p���Ҏ����d��新的产品�Ҏ��。像 CheckStyle �q�样的工具可以协助寻��N��些可影响到可�l�护性、与�~�码标准相冲�H�的地方�Q�比方说�Q�过大的�c�R��太长的�Ҏ��和未使用的变量等�{��?/p><div   id="wmqeeuq"   class="ibm-container ibm-alt-header dw-container-sidebar"><h2>有关 PMD</h2><div   id="wmqeeuq"   class="ibm-container-body">另一个叫�?PMD 的开源工��h��供的功能�?CheckStyle �c�M��。我偏爱 CheckStyle�Q�但 PMD 也有很多执着的追随者，所以我�����您了解一下这个工��P��毕竟它也颇受一些�h的青睐�?/div></div><p>使用 Eclipse �?CheckStyle 插�g的好处是能够在编码过�E�中了解到源代码上下文的各种�~�码冲突�Q�让开发�h员更可能在签入该代码前真正处理好�q�些冲突。您也几乎可以把 CheckStyle 插�g视作一个连�l�的代码复查工具�Q?/p><p>安装 CheckStyle 插�g�q�做如下配置�Q�参见图 4�Q�：</p><ol><li>选择 <strong>Project</strong>�Q�然后选择 Eclipse 菜单中的 <strong>Properties</strong> 菜单��V�?br /><br /></li><li>选择 <strong>CheckStyle active for this project</strong> 复选框�Q�单�?<strong>OK</strong>�?<br /><br /><br /><br /><a name="fig4"><strong>�?4. �?Eclipse 中配�|?CheckStyle 插�g </strong></a><br /><img alt="�?Eclipse 中配�|?CheckStyle 插�g" src="https://www.ibm.com/developerworks/cn/java/j-ap01117/checkstyle-config.jpg" width="572" height="456" /><br /><br /></li></ol><p>Eclipse 重新构徏工作�I�间�Q��ƈ�?Eclipse 控制��C��列示已发现的�~�码冲突�Q�如�?5 所�C�：</p><br /><a name="fig5"><strong>�?5. Eclipse �?CheckStyle 的代码冲�H�列�?</strong></a><br /><img alt="Eclipse �?CheckStyle 的代码冲�H�列�? src="https://www.ibm.com/developerworks/cn/java/j-ap01117/checkstyle-eclipse.jpg" width="572" height="412" /><br /><p>使用 CheckStyle 插�g�?Eclipse 内嵌入编码标准检验是一�U�很���的�Ҏ���Q�用�q�种�Ҏ��可以<em>在编码时</em> �U�极地改�q�代码，从而在开发周期的早期发现源代码中潜在的缺陗���这么做�q�有更多的好处，如节省时间、减���失败，也因此会减少��目的成本。没错，�q�就是一�U�积极主动的方式�Q?/p><div   id="wmqeeuq"   class="ibm-alternate-rule"><hr /></div><p class="ibm-ind-link ibm-back-to-top"><a class="ibm-anchor-up-link" >回页�?/a></p><p><a name="N101EF"><span id="wmqeeuq"    class="atitle">�?Coverlipse ���认覆盖�?/span></a></p><p>Coverlipse 是一个用�?Cobertura �?Eclipse 插�g�Q�Cobertura 是一个代码覆盖率工具�Q�可以用它来评估��h��相应���试的源代码的比率。Cobertura 也提供一�?Ant ��d���?Maven 插�g�Q�但�?Cobertura�Q�您可以<em>在编写代码时</em> 评估代码覆盖率。您见过�q�样的模式吗�Q?/p><p>通过选择 Eclipse 菜单��?<strong>Run</strong> 安装 Coverlipse 插�g�q�将其和 JUnit 兌�����h���Q�该操作会显�C�Z���p�d���q�行配置选项�Q�例�?JUnit、SWT 应用�E�序�?Java&#8482; 应用�E�序。右键单��d���q����择 <strong>JUnit w/Coverlipse</strong> 节点中的 <strong>New</strong>。在�q�里�Q�需要确�?JUnit ���试的位�|�，如图 6 所�C�：</p><br /><a name="fig6"><strong>�?6. 配置 Coverlipse 以获取代码覆盖率 </strong></a><br /><img alt="配置 Coverlipse 以获取代码覆盖率" src="https://www.ibm.com/developerworks/cn/java/j-ap01117/coverlipse-config.jpg" width="572" height="458" /><br /><p>一旦单��M�� <strong>Run</strong>�Q�Eclipse 会运�?Coverlipse �q�在源代码（如图 7 所�C�）中嵌入标讎ͼ�该标记显�C�Z����h��相关 JUnit ���试的代码部分：</p><br /><a name="fig7"><strong>�?7. Coverlipse 生成的具有嵌入类标记的报�?</strong></a><br /><img alt="Coverlipse 生成的具有嵌入类标记的报�? src="https://www.ibm.com/developerworks/cn/java/j-ap01117/coverlipse-report.jpg" width="572" height="414" /><br /><p>正如您所见，使用 Coverlipse Eclipse 插�g可以更快地确定代码覆盖率。例如，�q�种实时数据功能有助于在���代码签�?CM �pȝ��<em>�?/em> 更好地进行测试。这�Ҏ���q�编�E�来说意味着什么呢�Q?/p><div   id="wmqeeuq"   class="ibm-alternate-rule"><hr /></div><p class="ibm-ind-link ibm-back-to-top"><a class="ibm-anchor-up-link" >回页�?/a></p><p><a name="N10233"><span id="wmqeeuq"    class="atitle">�?CPD 捕捉代码重复</span></a></p><p>Eclipse �?PMD 插�g提供了一��叫�?CPD�Q�或复制�_�脓探测器）的功能，用于��L��重复的代码。�ؓ�?Eclipse 中��用这��便利的工具�Q�需要安装具�?PMD �?Eclipse 插�g�Q�该插�g��h�� CPD 功能�?/p><p>为寻��N��复的代码�Q�请用右键单��M���?Eclipse ��目�q����择 <strong>PMD | Find Suspect Cut and Paste</strong>�Q�如�?8 所�C�：</p><br /><a name="fig8"><strong>�?8. 使用 CPD 插�g�q�行复制�_�脓����?/strong></a><br /><img alt="使用 PMD/CPD 插�g�q�行复制�_�脓����? src="https://www.ibm.com/developerworks/cn/java/j-ap01117/cpd-eclipse.jpg" width="528" height="602" /><br /><p>一旦运行了 CPD�Q�您�?Eclipse 根目录下��׃��创徏��Z���?<code>report</code> 文�g夹，其中包含一个叫�?cpd.txt 的文�Ӟ��文�g中列�C�Z��所有重复的代码。图 9 中是一�?cpd.txt 文�g的例子：</p><br /><a name="fig9"><strong>�?9. Eclipse 插�g生成�?CPD 文本文�g</strong></a><br /><img alt="Eclipse 插�g生成�?CPD 文本文�g" src="https://www.ibm.com/developerworks/cn/java/j-ap01117/cpd-report.jpg" width="572" height="504" /><br /><p>靠�h工来��L��重复的代码是一��Ҏ��战，但��用像 CPD �q�样的插件却能在�~�码时轻村֜�发现重复的代码�?/p><div   id="wmqeeuq"   class="ibm-alternate-rule"><hr /></div><p class="ibm-ind-link ibm-back-to-top"><a class="ibm-anchor-up-link" >回页�?/a></p><p><a name="N1026A"><span id="wmqeeuq"    class="atitle">使用 JDepend �q�行依赖��Ҏ���?/span></a></p><p>JDepend 是个可免费获取的开源工��P��它�ؓ包依赖项提供面向对象的度量��|��以此指明代码库的�Ҏ��。换句话��_��JDepend 可有效测量一个架构的健壮性（反之�Q�脆弱性）�?/p><p>除了 Eclipse 插�g�Q�JDepend �q�提供一�?Ant ��d��、Maven 插�g和一�?Java 应用�E�序�Q�用以获取这些度量倹{��对于相同的信息�Q�它们有着不同的传递机�Ӟ���?Eclipse 插�g的特别之处和相应优点是：它能以更接近源代码（卻I���~�码�Ӟ��的方式传递这条信息�?/p><p>�?10 演示了���?Eclipse JDepend 插�g的方法：通过右键单击源文件夹�q����择 <strong>Run JDepend Analysis</strong>。一定要选择一个含源代码的源文件夹�Q�否则看不到此菜单项�?/p><br /><a name="fig10"><strong>�?10. 使用 JDepend Analysis 分析代码</strong></a><br /><img alt="使用 JDepend Analysis 分析代码" src="https://www.ibm.com/developerworks/cn/java/j-ap01117/run-jdepend.jpg" width="306" height="521" /><br /><p>�?11 昄���了运�?JDepend Analysis 时生成的报告。左�Ҏ���C�包�Q�右�Ҏ���C�针�Ҏ��个包的依赖项度量倹{�?/p><br /><a name="fig11"><strong>�?11. Eclipse ��目中的包依赖项 </strong></a><br /><img alt="Eclipse ��目中的包依赖项" src="https://www.ibm.com/developerworks/cn/java/j-ap01117/jdepend-report.jpg" width="572" height="412" /><br /><p>正如您所见，JDepend 插�g提供了有助于不断观察架构可维护性变化的大量信息 &#8212;&#8212; �q�其中最大的好处是您可以在编码时看到�q�些数据�?/p><div   id="wmqeeuq"   class="ibm-alternate-rule"><hr /></div><p class="ibm-ind-link ibm-back-to-top"><a class="ibm-anchor-up-link" >回页�?/a></p><p><a name="N102A0"><span id="wmqeeuq"    class="atitle">�?Metrics ���量复杂�?/span></a></p><p>&#8220;五大&#8221;代码分析最后的一��Ҏ�����量复杂度。Eclipse 提供一�U�叫�?Metrics 的插�Ӟ��使用该插件可以进行许多有用的代码度量�Q�包括圈复杂度度量，它用于测量方法中惟一路径的数目�?/p><p>安装 Metrics 插�g�q�����?Eclipse�Q�然后遵循下列步骤：</p><ol><li>右键单击您的��目�q����择 <strong>Properties</strong> 菜单。在�l�果�H�口中，选择 <strong>Enable Metrics plugin</strong> 复选框�q�单�?<strong>OK</strong>�Q�如�?12 所�C�： <br /><br /><br /><br /><a name="fig12"><strong>�?12. 为项目配�|?Metrics</strong></a><br /><img alt="为项目配�|?Metrics" src="https://www.ibm.com/developerworks/cn/java/j-ap01117/metrics-enable-project-properties.jpg" width="572" height="475" /><br /><br /><br /><br /></li><li>�?Eclipse 中选择 <strong>Window</strong> 菜单打开 Metrics 视图�Q�然后选择 <strong>Show View | Other...</strong>�?br /><br /></li><li>选择 <strong>Metrics | Metrics View</strong> 打开如图 13 中显�C�的�H�口。您需要���?Java 透视囑�ƈ重新构徏��目�Q�从而显�C����些度量倹{�?br /><br /><br /><br /><a name="fig13"><strong>�?13. 打开 Eclipse 中的 Metrics View </strong></a><br /><img alt="打开 Eclipse 中的 Metrics View" src="https://www.ibm.com/developerworks/cn/java/j-ap01117/metrics-view.jpg" width="276" height="401" /><br /><br /><br /><br /></li><li>单击 <strong>OK</strong> 来显�C�如�?14 中的�H�口�?br /><br />在此例中�Q�我正在查看一个单独方法的圈复杂度。真正妙的是您可以双�?Metrics 列表中的�Ҏ���Q�该插�g会在 Eclipse �~�辑器中为此�Ҏ��打开源代码。这���p��修正变得����񔽎�单（如果需要的话）�Q?br /><br /><br /><br /><a name="fig14"><strong>�?14. 查看�Ҏ��的圈复杂�?/strong></a><br /><img alt="查看�Ҏ��的圈复杂�? src="https://www.ibm.com/developerworks/cn/java/j-ap01117/metrics-report.jpg" width="572" height="377" /><br /><br /></li></ol><p>正如我之前提到过的，Eclipse Metrics 插�g�q�提供了许多功能强大的度量��|��有助于您在开发��Y件的�q�程中改�q�代�?&#8212;&#8212; 可见�Q�它是一个渐�q�编�E�意义上的插�?</p><div   id="wmqeeuq"   class="ibm-alternate-rule"><hr /></div><p class="ibm-ind-link ibm-back-to-top"><a class="ibm-anchor-up-link" >回页�?/a></p><p><a name="N1031C"><span id="wmqeeuq"    class="atitle">合适的才是最好的</span></a></p><p>正如您从本文中看到的那样�Q�将&#8220;五大&#8221;���量�Ҏ���Q�即�~�码标准、代码重复、代码覆盖率、依赖项分析和复杂度监控�Q�用于改�q�代码质量十分重要。但适合您的才是好的。请��C���q�有其他许多可用�?Eclipse 插�g�Q�比�?PMD �?FindBugs�Q�能够帮助您在开发周期的早期改进代码质量。不���您惌���的工��h��偏爱的方法是什么，重要的是�Q�行动�v来去�U�极改进代码质量�q�让手工代码���验的�q�程变得更加有效。我估计您��用这些插件一�D�|��间后�Q�就再也���M��开它们了�?/p><!-- CMA ID: 192414 --> <!-- Site ID: 10 --> <!-- XSLT stylesheet used to transform this file:  dw-article-6.0-beta.xsl --><br /><p><a name="resources"><span id="wmqeeuq"    class="atitle">参考资�?</span></a></p><p><strong>学习</strong></p><ul><li>您可以参阅本文在 developerWorks 全球站点上的 <a  target="_blank">英文原文</a> �?br /><br /></li><li><a ><em>让开发自动化</em></a>�Q�Paul Duvall�Q�developerWorks�Q�：阅读完整的系列�?br /><br /></li><li>&#8220;<a >Improving Code Quality with PMD and Eclipse</a>&#8221; �Q�Levent Gurses�Q�Jacoozi�Q?005 �q?1 月）�Q�这���文章将 PMD 视�ؓ Eclipse 插�g�Q�介�l�了使用 PMD 改进代码质量�q�羃短代码检验过�E�的�Ҏ���?br /><br /></li><li>&#8220;<a >�?Cobertura ���量���试覆盖�?/a>&#8221; �Q�Elliotte Rusty Harold�Q�developerWorks�Q?005 �q?5 月）�Q�Elliotte Rusty Harold 分��n了他的经验，卛_��何��用代码覆盖率的最佛_��跉|��利用 Cobertura�?br /><br /></li><li>&#8220;<a >不要被覆盖报告所�q�h��</a>&#8221; �Q�Andrew Glover�Q�developerWorks�Q?006 �q?1 月）�Q�这���文章进一步揭�C�Z��覆盖率报告中的数字所代表的真正含义，也给��Z���q�些数字所不能代表的含义�?br /><br /></li><li>&#8220;<a >Managing Your Dependencies with JDepend</a>&#8221; �Q�Glen Wilcox�Q�OnJava�Q?004 �q?1 月）�Q�在�q�篇文章中，Glen Wilcox 介绍�?JDepend�Q�这是一个可以免费获取的工具�Q�它能洞悉��Y件架构中的许多质量问题�?br /><br /></li><li>&#8220;<a >软�g架构的代码质�?/a>&#8221; �Q�Andrew Glover�Q�developerWorks�Q?006 �q?4 月）�Q�Andrew Glover 介绍了如何持�l�监控以及如何改正能够媄响��Y件架构长期存�l�性的代码质量问题�?br /><br /></li><li>&#8220;<a ><em>让开发自动化</em>: 持箋����?/a>&#8221; �Q�Paul Duvall�Q�developerWorks�Q?006 �q?8 月）�Q�Paul Duvall 介绍了自动化的检查工��P���?CheckStyle、JavaNCSS �?CPD �Q�是如何增强开发过�E�的以及何时应该使用�q�些工具�?br /><br /></li><li>&#8220;<a >Detecting Duplicate Code with PMD's CPD</a>&#8221; �Q�Tom Copeland�Q�OnJava�Q?003 �q?3 月）�Q�Tom Copeland 介绍了一�U�叫�?CPD�Q�复�?�_�脓������器�Q�的开源工��P��该工��L��于寻��N��复的 Java 代码�?br /><br /></li><li>&#8220;<a >Maintain organizational standards with code audits&#8221;</a> �Q�testearly.com�Q�：�~�码标准有利于广大开发�h员对代码库达成共识�?br /><br /></li><li><a >developerWorks Java 技术专�?/a>�Q�数癄���关于 Java �~�程各方面的文章�?br /><br /></li></ul><p><strong>获得产品和技�?/strong></p><ul><li><a >Eclipse plugin for PMD</a>�Q����?PMD 插�g在代码中��L��复制�_�脓问题�?br /><br /></li><li><a >Eclipse plugin for JDepend</a>�Q�此插�g有助于分析代码库中的包依赖项�?br /><br /></li><li><a >Eclipse plugin for Cobertura</a>�Q�Coverlipse �?用于 Cobertura �?Eclipse 插�g�Q�它提供代码覆盖率信息�?br /><br /></li><li><a >Eclipse Metrics</a>�Q�此插�g提供度量��|��如圈复杂度，非常有助于寻扑֤�杂代码�?br /><br /></li><li><a >Eclipse plugin for CheckStyle</a>�Q�检验项目编码标准的遵��@情况�?br /><br /></li></ul><p><strong>讨论</strong></p><ul><li><a >提高代码质量论坛</a>�Q�developerWorks 的积极�A献�?Andrew Glover 是一名专注于改进代码质量的顾问，他�ؓ�q�个�׃����L��的论坛带来了很多相当专业的知识�?br /><br /></li></ul><p><a name="author"><span id="wmqeeuq"    class="atitle">关于作�?/span></a></p><div   id="wmqeeuq"   class="ibm-container ibm-portrait-module ibm-alternate-two"><div   id="wmqeeuq"   class="ibm-container-body"><img class="dw-author-img" alt="Paul Duvall" src="http://www.ibm.com/developerworks/i/p-pduvall.jpg" width="64" height="80" /><p><a name="author1"> </a>Paul Duvall �?<a >Stelligent Incorporated</a> �?CTO�Q�该公司利用有效的开发�h员测试策略，以及能够让团队尽早尽多地监视和提高代码质量的持箋集成技术，帮助其他企业解决软�g的质量问题。他�q�是 <a >UML&#8482; 2 Toolkit</a> 一书的作者之一�Q�目前正在与他�h合作撰写 <a >Continuous Integration: Improving Software Quality and Reducing Risk</a> (Addison-Wesley) 一书�?/p></div></div><img src ="http://www.aygfsteel.com/love1563/aggbug/400742.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/love1563/" target="_blank">love1563</a> 2013-06-19 17:27 <a href="http://www.aygfsteel.com/love1563/archive/2013/06/19/400742.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title> Eclipse快捷�?10个最有用的快捷键</title><link>http://www.aygfsteel.com/love1563/archive/2013/06/11/400480.html</link><dc:creator>love1563</dc:creator><author>love1563</author><pubDate>Tue, 11 Jun 2013 07:28:00 GMT</pubDate><guid>http://www.aygfsteel.com/love1563/archive/2013/06/11/400480.html</guid><wfw:comment>http://www.aygfsteel.com/love1563/comments/400480.html</wfw:comment><comments>http://www.aygfsteel.com/love1563/archive/2013/06/11/400480.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/love1563/comments/commentRss/400480.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/love1563/services/trackbacks/400480.html</trackback:ping><description><![CDATA[<div>http://www.open-open.com/bbs/view/1320934157953/</div><br /><br /><div><strong>&nbsp;  1. ctrl+shift+r�Q�打开资源</strong> <p>&nbsp;&nbsp;&nbsp;  �q�可能是所有快捷键�l�合中最省时间的了。这�l�快捷键可以让你打开你的工作��Z����M��一个文�Ӟ��而你只需要按下文件名或mask名中的前几个字母�Q�比如applic*.xml。美中不���的是这�l�快捷键�q����在所有视图下都能用�?/p> <p><br /> <a target="_blank"><img src="http://www.open-open.com/bbs/uploadImg/20111110/20111110220701_651.jpg" title="【�{】eclipse快捷�?10个最有用的快捷键 " alt="【�{】eclipse快捷�?10个最有用的快捷键 " border="0" height="500" width="600" /></a></p> <p><strong>  2. ctrl+o�Q�快速outline</strong></p> <p>&nbsp;&nbsp;&nbsp;  如果惌���查看当前�cȝ���Ҏ��或某个特定方法，但又不想把代码拉上拉下，也不想��用查扑֊�能的话，���q��ctrl+o吧。它可以列出当前�c�M��的所有方法及属性，你只需输入你想要查询的�Ҏ��名，点击enter���p��够直接蟩转至你想�ȝ��位置�?/p> <p><br /> <a target="_blank"><img src="http://www.open-open.com/bbs/uploadImg/20111110/20111110220709_16.jpg" title="【�{】eclipse快捷�?10个最有用的快捷键 " alt="【�{】eclipse快捷�?10个最有用的快捷键 " border="0" height="403" width="503" /></a></p> <p><strong>3. ctrl+e�Q�快速�{换编辑器</strong></p> <p>&nbsp;&nbsp;&nbsp;  �q�组快捷键将帮助你在打开的编辑器之间���览。��用ctrl+page down或ctrl+page up可以���览前后的选项卡，但是在很多文件打开的状态下�Q�ctrl+e会更加有效率�?/p> <p><br /> <a target="_blank"><img src="http://www.open-open.com/bbs/uploadImg/20111110/20111110220906_315.jpg" title="eclipse快捷�?10个最有用的快捷键 " alt="eclipse快捷�?10个最有用的快捷键 " border="0" height="271" width="316" /></a></p> <p><strong>4. ctrl+2�Q�L�Q��ؓ本地变量赋�?/strong></p> <p>&nbsp;&nbsp;&nbsp;   开发过�E�中�Q�我常常先编写方法，如Calendar.getInstance()�Q�然后通过ctrl+2快捷键将�Ҏ��的计���结果赋��g��一个本地变量之上�?�q�样我节省了输入�c�d���Q�变量名以及导入声明的时间。Ctrl+F的效果类��|��不过效果是把�Ҏ��的计���结果赋��g���c�M��的域�?/p> <p><strong>&nbsp;&nbsp;&nbsp;  5. alt+shift+r�Q�重命名</strong></p> <p>&nbsp;&nbsp;&nbsp;  重命名属性及�Ҏ��在几�q�前�q�是个很�ȝ��的事�Q�需要大量��用搜索及替换�Q�以至于代码变得雉���散散的。今天的Java  IDE提供源码处理功能�Q�Eclipse也是一栗���现在，变量和方法的重命名变得十分简单，你会习惯于在每次出现更好替代名称的时候都做一�ơ重命名。要�?用这个功能，��?a target="_blank">鼠标</a>�U�d��臛_��性名或方法名上，按下alt+shift+r�Q�输入新名称�q�点��d��车。就此完成。如果你重命名的是类中的一个属性，你可以点击alt+shift+r两次�Q�这会呼叫出源码处理对话框，可以实现get及set�Ҏ��的自动重命名�?/p> <p><strong>&nbsp;&nbsp;&nbsp;  6. alt+shift+l以及alt+shift+m�Q�提取本地变量及�Ҏ��</strong></p> <p>&nbsp;&nbsp;&nbsp;   源码处理�q�包括从大块的代码中提取变量和方法的功能。比如，要从一个string创徏一个常量，那么���选定文本�q�按下alt+shift+l卛_��。如果同 一个string在同一�c�M��的别处出玎ͼ�它会被自动替换。方法提取也是个非常方便的功能。将大方法分解成较小的、充分定义的�Ҏ��会极大的减少复杂度，�q�提 升代码的可测试性�?/p> <p><strong>&nbsp;&nbsp;&nbsp;  7. shift+enter及ctrl+shift+enter</strong></p> <p>&nbsp;&nbsp;&nbsp;  Shift+enter在当前行之下创徏一个空白行�Q�与光标是否在行末无兟뀂Ctrl+shift+enter则在当前行之前插入空白行�?/p> <p><strong>&nbsp;&nbsp;&nbsp;  8. Alt+方向�?/strong></p> <p>&nbsp;&nbsp;&nbsp;  �q�也是个节省旉���的法宝。这个组合将当前行的内容往上或下移动。在try/catch部分�Q�这个快��h��式尤其好�ѝ�?/p> <p><strong>&nbsp;&nbsp;&nbsp;  9. ctrl+m</strong></p> <p>&nbsp;&nbsp;&nbsp;  大显�C�屏�q�能够提高工作效率是大家都知道的。Ctrl+m是编辑器�H�口最大化的快捷键�?/p> <p><strong>&nbsp;&nbsp;&nbsp;  10. ctrl+.及ctrl+1�Q�下一个错误及快速修�?/strong></p> <p>&nbsp;&nbsp;&nbsp;   ctrl+.���光标移动至当前文�g中的下一个报错处或警告处。这�l�快捷键我一般与ctrl+1一�q���用，即修改徏议的快捷键。新版Eclipse的修改徏 议做的很不错�Q�可以帮你解军_��多问题，如方法中的缺失参敎ͼ�throw/catch exception�Q�未执行的方法等�{��?/p> <p><br /> <a target="_blank"><img style="width:672px;height:290px;" src="http://www.open-open.com/bbs/uploadImg/20111110/20111110220910_390.jpg" title="eclipse快捷�?10个最有用的快捷键 " alt="eclipse快捷�?10个最有用的快捷键 " border="0" /></a></p> <p>更多快捷键组合可在Eclipse按下ctrl+shift+L查看�?/p></div><img src ="http://www.aygfsteel.com/love1563/aggbug/400480.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/love1563/" target="_blank">love1563</a> 2013-06-11 15:28 <a href="http://www.aygfsteel.com/love1563/archive/2013/06/11/400480.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item></channel></rss>                                                                                                                                                                                                                                                                                   <footer>
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