�??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>&#x56FD;&#x4EA7;&#x4E9A;&#x6D32;&#x7B2C;&#x4E00;&#x533A;&#x2C;&#x4E45;&#x4E45;&#x4E45;&#x4E45;&#x4E45;&#x4E45;&#x4E00;&#x533A;&#x4E8C;&#x533A;&#x4E09;&#x533A;&#x2C;&#x4E45;&#x4E45;&#x7CBE;&#x54C1;&#x4EBA;&#x4EBA;&#x505A;&#x4EBA;&#x4EBA;&#x7EFC;&#x5408;</title><link>http://www.aygfsteel.com/ldz112/archive/2014/02/26/410337.html</link><dc:creator>李大�?/dc:creator><author>李大�?/author><pubDate>Wed, 26 Feb 2014 08:40:00 GMT</pubDate><guid>http://www.aygfsteel.com/ldz112/archive/2014/02/26/410337.html</guid><wfw:comment>http://www.aygfsteel.com/ldz112/comments/410337.html</wfw:comment><comments>http://www.aygfsteel.com/ldz112/archive/2014/02/26/410337.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/ldz112/comments/commentRss/410337.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/ldz112/services/trackbacks/410337.html</trackback:ping><description><![CDATA[1、下载�ƈ安装hadoop(需安装好jdk)<br />2、创建文件夹<br /><div>~/dfs/name</div><div>~/dfs/data</div><div>~/temp</div>3、修攚w���|�文�?br /><div>~/hadoop-2.2.0/etc/hadoop/hadoop-env.sh</div><div>~/hadoop-2.2.0/etc/hadoop/yarn-env.sh</div><div>~/hadoop-2.2.0/etc/hadoop/slaves</div><div>~/hadoop-2.2.0/etc/hadoop/core-site.xml</div><div>~/hadoop-2.2.0/etc/hadoop/hdfs-site.xml</div><div>~/hadoop-2.2.0/etc/hadoop/mapred-site.xml</div><div>~/hadoop-2.2.0/etc/hadoop/yarn-site.xml</div><div>以上个别文�g默认不存在的�Q�可以复制相应的template文�g获得�?br />--hadoop-env.sh<br />修改javahome<br /><div>export JAVA_HOME=/home/hduser/jdk1.6.0_45<br />--yarn-env.sh<br />同上<br />--slaves<br />增加处理节点机器名即�?br /></div><div>--core-site.xml</div><div>&lt;configuration&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp;&lt;property&gt;</div><div><span style="white-space:pre">		</span>&lt;name&gt;fs.defaultFS&lt;/name&gt;</div><div><span style="white-space:pre">		</span>&lt;value&gt;hdfs://cloudn:9000&lt;/value&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp;&lt;/property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp;&lt;property&gt;</div><div><span style="white-space:pre">		</span>&lt;name&gt;io.file.buffer.size&lt;/name&gt;</div><div><span style="white-space:pre">		</span>&lt;value&gt;131072&lt;/value&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp;&lt;/property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp;&lt;property&gt;</div><div><span style="white-space:pre">		</span>&lt;name&gt;hadoop.tmp.dir&lt;/name&gt;</div><div><span style="white-space:pre">		</span>&lt;value&gt;file:/home/hduser/temp&lt;/value&gt;</div><div><span style="white-space:pre">		</span>&lt;description&gt;Abase for other temporary directories.&lt;/description&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp;&lt;/property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &lt;property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;name&gt;hadoop.proxyuser.hduser.hosts&lt;/name&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;value&gt;*&lt;/value&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp;&lt;/property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp;&lt;property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;name&gt;hadoop.proxyuser.hduser.groups&lt;/name&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;value&gt;*&lt;/value&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp;&lt;/property&gt;</div><div>&lt;/configuration&gt;</div><div></div><div>--hdfs-site.xml</div><div>&lt;configuration&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp;&lt;property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;name&gt;dfs.namenode.secondary.http-address&lt;/name&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;value&gt;cloudn:9001&lt;/value&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp;&lt;/property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp;&lt;property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;name&gt;dfs.namenode.name.dir&lt;/name&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;value&gt;file:/home/hduser/dfs/name&lt;/value&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp;&lt;/property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp;&lt;property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;name&gt;dfs.datanode.data.dir&lt;/name&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;value&gt;file:/home/hduser/dfs/data&lt;/value&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp;&lt;/property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp;&lt;property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;name&gt;dfs.replication&lt;/name&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;value&gt;2&lt;/value&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp;&lt;/property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp;&lt;property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;name&gt;dfs.webhdfs.enabled&lt;/name&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;value&gt;true&lt;/value&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp;&lt;/property&gt;</div><div>&lt;/configuration&gt;</div><div></div><div>--mapred-site.xml</div><div>&lt;configuration&gt;</div><div><span style="white-space:pre">	</span>&lt;property&gt;</div><div><span style="white-space:pre">		</span>&lt;name&gt;mapreduce.framework.name&lt;/name&gt;</div><div><span style="white-space:pre">		</span>&lt;value&gt;yarn&lt;/value&gt;</div><div><span style="white-space:pre">	</span>&lt;/property&gt;</div><div><span style="white-space:pre">	</span>&lt;property&gt;</div><div><span style="white-space:pre">		</span>&lt;name&gt;mapreduce.jobhistory.address&lt;/name&gt;</div><div><span style="white-space:pre">		</span>&lt;value&gt;cloudn:10020&lt;/value&gt;</div><div><span style="white-space:pre">	</span>&lt;/property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &lt;property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;name&gt;mapreduce.jobhistory.webapp.address&lt;/name&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;value&gt;cloudn:19888&lt;/value&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &lt;/property&gt;</div><div>&lt;/configuration&gt;</div><div></div><div>--yarn-site.xml</div><div></div><div>&lt;configuration&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &lt;property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;name&gt;yarn.nodemanager.aux-services&lt;/name&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;value&gt;mapreduce_shuffle&lt;/value&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &lt;/property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &lt;property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;name&gt;yarn.nodemanager.aux-services.mapreduce.shuffle.class&lt;/name&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;value&gt;org.apache.hadoop.mapred.ShuffleHandler&lt;/value&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &lt;/property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &lt;property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;name&gt;yarn.resourcemanager.address&lt;/name&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;value&gt;cloudn:8032&lt;/value&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &lt;/property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &lt;property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;name&gt;yarn.resourcemanager.scheduler.address&lt;/name&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;value&gt;cloudn:8030&lt;/value&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &lt;/property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &lt;property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;name&gt;yarn.resourcemanager.resource-tracker.address&lt;/name&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;value&gt;cloudn:8031&lt;/value&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &lt;/property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &lt;property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;name&gt;yarn.resourcemanager.admin.address&lt;/name&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;value&gt;cloudn:8033&lt;/value&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &lt;/property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &lt;property&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;name&gt;yarn.resourcemanager.webapp.address&lt;/name&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;value&gt;cloudn:8088&lt;/value&gt;</div><div>&nbsp; &nbsp; &nbsp; &nbsp;&lt;/property&gt;</div><div>&lt;/configuration&gt;</div></div><div>4、复制到其他节点�Q�如�?4位，32位，不能复制</div>5、启动准�?br /><div>格式化namenode: bin/hdfs namenode -format<br />6、启动hadoop:sbin/start-all.sh<br />7、hellocount<br /><br /><div>先在hdfs上创��Z��个文件夹</div><div>./bin/hdfs dfs -mkdir /input</div><div>&nbsp;./bin/hdfs dfs -ls /</div><div>在namenode上创��Z��文�g�?/div><div>files,创徏2个文�?echo "Hello World" &gt; file1.txt</div><div>more file1.txt file2.txt</div><div>hadoop fs -mkdir &nbsp;input</div><div>创徏输入文�g�?/div><div>./bin/hdfs dfs -mkdir /input</div><div>./bin/hdfs dfs -mkdir input</div><div>./bin/hdfs dfs -ls /</div><div>上传本地文�g到集���的input目录</div><div>./bin/hdfs dfs -put ~/files/*.txt /input</div><div>./bin/hdfs dfs -ls /input</div><div>执行</div><div>./bin/hadoop jar /home/hduser/hadoop-2.2.0/share/hadoop/mapreduce/sources/hadoop-mapreduce-examples-2.2.0-sources.jar org.apache.hadoop.examples.WordCount /input /output</div><div>�l�果</div><div>./bin/hadoop dfs -cat /output/part-r-00000</div></div><br /><br /><br /><br /><br /><img src ="http://www.aygfsteel.com/ldz112/aggbug/410337.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/ldz112/" target="_blank">李大�?/a> 2014-02-26 16:40 <a href="http://www.aygfsteel.com/ldz112/archive/2014/02/26/410337.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>hadoop准备2</title><link>http://www.aygfsteel.com/ldz112/archive/2014/02/13/409796.html</link><dc:creator>李大�?/dc:creator><author>李大�?/author><pubDate>Thu, 13 Feb 2014 02:36:00 GMT</pubDate><guid>http://www.aygfsteel.com/ldz112/archive/2014/02/13/409796.html</guid><wfw:comment>http://www.aygfsteel.com/ldz112/comments/409796.html</wfw:comment><comments>http://www.aygfsteel.com/ldz112/archive/2014/02/13/409796.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/ldz112/comments/commentRss/409796.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/ldz112/services/trackbacks/409796.html</trackback:ping><description><![CDATA[<div>机器名，及ip解析修改</div><div>分别修改etc下hostname、hosts</div><div></div><div>安装完成后会在~目录�Q�当前用户主目录�Q�即�q�里�?home/hduser�Q�下产生一个隐藏文件夹.ssh�Q�ls &nbsp;-a 可以查看隐藏文�g�Q�。如果没有这个文�Ӟ��自己新徏卛_���Q�mkdir .ssh�Q��?/div><div>1�?�q�入.ssh文�g�?/div><div>2�?ssh-keygen -t &nbsp;rsa 之后一路回�?/div><div>3、ssh localhost</div><div></div><div>cat id_rsa.pub &gt;&gt; authorized_keys</div><div>scp authorized_keys @ authorized_key_1</div><div>cat authorized_key_1 &gt;&gt; &nbsp;authorized_keys &nbsp;�q�里感觉蛮奇怪的�Q�从�W�一台拷�q�去再cat到第二台信息里，反而第二台能自动登录到�W�一収ͼ�反正目标是互�?/div><div></div><div>jdk 安装</div><div>JAVA_HOME=/home/lmode/jdk1.6.0_45</div><div>CLASSPATH=.:$JAVA_HOME/lib.tools.jar</div><div>PATH=$JAVA_HOME/bin:$PATH</div><div>export JAVA_HOME CLASSPATH PATH</div><div></div><div>export LANG="zh_CN.GB18030"</div><div>export LC_ALL="zh_CN.GB18030"</div><div>export NLS_LANG=american_america.ZHS16GBK</div><img src ="http://www.aygfsteel.com/ldz112/aggbug/409796.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/ldz112/" target="_blank">李大�?/a> 2014-02-13 10:36 <a href="http://www.aygfsteel.com/ldz112/archive/2014/02/13/409796.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>hadoop准备</title><link>http://www.aygfsteel.com/ldz112/archive/2014/02/11/409713.html</link><dc:creator>李大�?/dc:creator><author>李大�?/author><pubDate>Tue, 11 Feb 2014 03:21:00 GMT</pubDate><guid>http://www.aygfsteel.com/ldz112/archive/2014/02/11/409713.html</guid><wfw:comment>http://www.aygfsteel.com/ldz112/comments/409713.html</wfw:comment><comments>http://www.aygfsteel.com/ldz112/archive/2014/02/11/409713.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/ldz112/comments/commentRss/409713.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/ldz112/services/trackbacks/409713.html</trackback:ping><description><![CDATA[1、虚拟机 vmware10 os ubuntu12<br />2、安装完以上软�g�q�行��?br />&nbsp; &nbsp; &nbsp;&nbsp;<span style="font-family: Verdana, Arial, Helvetica, sans-serif; line-height: 20px;">sudo apt-get update 更新�?/span><span style="font-family: Verdana, Arial, Helvetica, sans-serif; line-height: 20px;">　</span><br style="font-family: Verdana, Arial, Helvetica, sans-serif; line-height: 20px;" /><span style="font-family: Verdana, Arial, Helvetica, sans-serif; line-height: 20px;">　　sudo apt-get upgrade 更新已安装的�?/span><br />3、共享文件夹<br />&nbsp; &nbsp; sudo mount /dev/cdrom /mnt/cdrom<br />&nbsp; &nbsp; 安装vmware tools �Q�解�?执行pl文�g<br />&nbsp; &nbsp; 安装sudo apt-get install open-vm-dkms<br />&nbsp; &nbsp;&nbsp;��x���Q�设�|�共�?br />&nbsp; &nbsp; sudo mount -t vmhgfs .host:/ /mnt/hgfs<br />4、openssh<br />&nbsp; &nbsp; sudo apt-get &nbsp;install openssh-server<br /><img src ="http://www.aygfsteel.com/ldz112/aggbug/409713.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/ldz112/" target="_blank">李大�?/a> 2014-02-11 11:21 <a href="http://www.aygfsteel.com/ldz112/archive/2014/02/11/409713.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>优秀工作���引擎标�?/title><link>http://www.aygfsteel.com/ldz112/archive/2009/12/10/305444.html</link><dc:creator>李大�?/dc:creator><author>李大�?/author><pubDate>Thu, 10 Dec 2009 08:34:00 GMT</pubDate><guid>http://www.aygfsteel.com/ldz112/archive/2009/12/10/305444.html</guid><wfw:comment>http://www.aygfsteel.com/ldz112/comments/305444.html</wfw:comment><comments>http://www.aygfsteel.com/ldz112/archive/2009/12/10/305444.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/ldz112/comments/commentRss/305444.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/ldz112/services/trackbacks/305444.html</trackback:ping><description><![CDATA[一般性功�?(General Functions) <br />
1. 免程序开�?No Programming or Scripting) <br />
2. 可处理大量流�E�工�?(Volume Transaction Processing) <br />
3. 三层式弹性化架构(Three Tier, Scaleable Architecture) <br />
4. �E�_��的信息传递架�?Robust Message Transports) <br />
5. ���程反向回传/抽单(Process Rollback) <br />
6. 支持LDAP 目录服务 <br />
7. 支持企业�U�数据库 (Support for Enterprise Databases) <br />
8. 动态用��h���?Active User Licensing) <br />
9. �l�一的登入ID 与密�?Unified ID/Password) <br />
10. 使用者网域安全�?User Domain Security) <br />
���程与窗体设计功�?(Designer) <br />
11. 囑�Ş化工作流�E�图(Graphical Workflow Maps) <br />
12. ��Z��角色的�\�?Role Based Routing) <br />
13. �q����会签(Parallel Routing) <br />
14. ��Z��关系的�\�?Relationship Based Routings) <br />
15. 工作队列(Queues) <br />
16. 囑�Ş化数据�\�?Graphical Data Routing) <br />
17. 动态会�{?Dynamic Routing) <br />
18. 条�g化步�?Conditional Steps) <br />
19. 条�g化步骤蟩�?Conditional Jumps) <br />
20. 条�g化取消流�E?Conditional Aborts) <br />
21. 条�g化退�?Conditional Returns) <br />
22. 条�g化收件�h(Conditional Recipients) <br />
23. 条�g定义清单(Event Condition Tables) <br />
24. 条�g定义清单与其它步骤互�?Status Variables in Event Condition Tables) <br />
25. 退�?Return Step) <br />
26. 动态定义群�l?Dynamic Groups) <br />
27. 整合�����型窗体设计工�?Integrated Intelligent Forms Designer) <br />
28. 表格透过服务器端�q�接数据�?Server-Side Database Connectivity for Forms) <br />
29. 表格通用变量(Global Variables in Forms) <br />
30. 电子�{����(Signatures) <br />
31. 备注留言�?Memos) <br />
32. 表格支持电子扩展�?(Spreadsheet Grid in Forms) <br />
33. 多页表格(Multiple Pages per Form) <br />
34. 子表(Sub-Forms) <br />
35. 必备与必��L���?Required and Must-Read Attachments) <br />
36. 附�g功能(Attachment) <br />
37. 资料验证与格式化输入(Data Validation and Masking) <br />
38. 支持URL �q�结(URL Links) <br />
39. 支持HTML/Java (Support DHTML/Java) <br />
40. 支持�W�三方对象开�?Third-Party Objects (Controls)) <br />
41. 自订传递�\�?Ad hoc Routing) <br />
42. �q�接�?Junction Steps) <br />
43. 重复�Ȁ�z�L���E?Iteration) <br />
44. 转折�?Anchors) <br />
45. �~�辑业务规则(Editing Business Rules) <br />
46. 自动暂停或恢复���l�流�E?Hold Conditions) <br />
47. 发�v子流�E?Sub Processes) <br />
48. 同步/异步子流�E?Synchronous/Asynchronous Sub Processes) <br />
49. 定时�Ȁ�z?Periodic Launches) <br />
50. �W�三方��Y件接口（Agent API/SDK �Q?<br />
51. Excel 接口�Q�Excel Agent �Q?<br />
52. Word 接口(Word Agent) <br />
53. ODBC 接口(ODBC Agent) <br />
54. ASCII 接口(ASCII Agent) <br />
55. 文�g接口 (File Agent) <br />
56. 电子邮�g接口(E-mail Agent) <br />
57. 呼叫DLL 接口(Invoke DLL Agent) <br />
58. 接口中心�Q�Agent Station �Q?<br />
59. ���程仿真���试(Simulation) <br />
60. ���程仿真除错工具(Debugging Tools during Simulation) <br />
61. �q�箋�Ȁ�z�L���?Repeating Steps) <br />
62. 取消案�g或步�?Abort Step or Incident) <br />
63. 可重复送�g的步�?Perpetual Steps) <br />
64. 保密步骤(Private User Steps) <br />
65. ���止代理的工�?Non-assignable User Tasks) <br />
66. 复制���程步骤(Replicating Tasks) <br />
67. 动态更改工作优先��(Dynamic Task Prioritization) <br />
68. 可定义工作流�E�拥有�h(Process Owners) <br />
69. 工时成本计算(Task Rates) <br />
70. 工作完成旉���(Task Completion Times) <br />
71. ���体开发流�E?Collaborative Design via Maplets TM) <br />
72. 数据可传递至子流�E?Data Transfer to Sub-Processes) <br />
73. 可同时监控主/子流�E?View Sub-Process Status in Monitor View) <br />
74. 数据捆绑通用变量 (Databound global variables) <br />
75. ���程设计文�g制作(Process Documentation) <br />
76. 以邮仉���知工作逾时(E-mail Notification of Late Condition) <br />
77. 可自订通知邮�g(Customizable Notification Messages) <br />
78. ���体响应(Group Response/Vote) <br />
79. 指定代号启始�?Seeded Incident Number) <br />
80. 指定工作暂停(Delayed Assignment) <br />
81. 启始新流�E�权�?Process Initiation Rights) <br />
工作���程服务器功�?(Workflow Server Features) <br />
82. 支持多个���程服务�?Multiple Workflow Servers) <br />
83. 集中式的服务器端数据库连�l?Centralized, Server-side Database Connectivity) <br />
84. 以文字文件激�z�L���E?Process Launch via Text Files) <br />
85. 通过E-Mail �Ȁ�z�L���E?Process Launch via E-mail) <br />
86. �W�合业务逻辑的服务器端动态连接库(Server-Side DLLs for Custom Workflow Logic) <br />
87. 工作处理记录文�g(Transaction Log Files) <br />
88. 服务器定时清仓维�?Periodic Server Housekeeping) <br />
89. 清仓�H�口(Housekeeping Window) <br />
90. 处理停顿���程(Handling of Stalled Processes) <br />
91. 服务器自动复�?Automatic Server Recovery) <br />
客户端程序功�?(Client Features) <br />
92. B/S �l�构的客��L��界面(Browser-based Client Interface) <br />
93. 依重要程度优先��排列工作清单(Prioritized Client Task List) <br />
94. ��d��式电子邮仉���知(Proactive E-mail Notifications) <br />
95. �q�度落后工作调整(Late Task Escalation) <br />
96. 用户监看���程状况(Status Monitoring at Client) <br />
97. 分布式用��L���?Distributed User Administration) <br />
98. 用户指定代理�?Client Assign Functions) <br />
99. 由工作队列中选择工作(Select Task from Queue) <br />
100.用户自订工作�H�口画面(Custom Client Views) <br />
101.昄���已被代理的工�?View Assigned Tasks) <br />
102.表格快取功能(Forms Caching) <br />
103.表格��h��(Form Templates) <br />
104.表格自动归档(Automatic Archiving) <br />
105.自动更新�E�序与组�?Automatic Software Update for Browser Clients) <br />
106.���览器端的数字认证功�?Digital Certificate for Browser Software) <br />
107.公众用户(Public Client ) <br />
108.游移用户(Roving User) <br />
109.自动定时更新画面(Automatic Periodic Refresh) <br />
110.异常状况通知(Notification of Abnormal Situations) <br />
111.数据库安�?Database Security) <br />
112.开攄���客户端��Y�?Open Client) <br />
企业�l�织囑֊��?(Organization Chart Features) <br />
113.企业�l�织�?Organization Charts) <br />
114.子组�l�图(Sub-Charts) <br />
115.�l�织图拥有�h(Chart Owners) <br />
116.���组(Groups) <br />
117.循序���组(Sequential Groups) <br />
118.权重���组(Weighted Groups) <br />
119.工作职务���组(Job Function Groups) <br />
120.多重角色���理(Multiple Roles Per User) <br />
121.相对职务关系(Relative Job Functions) <br />
122.职务搜寻(Search) <br />
123.�l�织调整(Reorganize) <br />
�pȝ��与流�E�管理功�?(Administrator Features) <br />
124.囑�Ş化工作流�E�监�?Graphical Workflow Monitoring) <br />
125.版本控制(Version Control) <br />
126.工作负荷量显�C?Workload View) <br />
127.��d��成本�l�计(Task Cost Statistics) <br />
128.工作���程成本�l�计(Process Cost Statistics) <br />
129.单一步骤���时�l�计(Step Lag Time) <br />
130.工作���程���时�l�计(Process Lag Time) <br />
131.���程暂时停用(Disable Processes ) <br />
132.由队列中临时调派工作(Pull Tasks from Queue) <br />
133.工作重�?Resend Steps) <br />
134.非工作日讑֮�(Exclusion Days) <br />
135.代理未来工作(Assign Future Tasks) <br />
136.工作���程信息输出(Workflow Metrics Export) <br />
137.能��时更�Ҏ��件�h(Ability to Change Recipient ) <br />
138.可显�C����行中���程的内�?Ability to View Workflow Data) <br />
139.自订案�g�q���o清单(User-Defined Queries for Reports / Monitor View) <br />
140.自动安装���程�l�新的部门成�?Automatic Install to New Group Members) <br />
141.可自行定义统计报�?Configurable Reports) <br />
142.可指定代理期�?Assign Until) <br />
143.可传回子���程�l�计数据(Roll-up Sub-Process Statistics) <br />
144.������W�三方应用��Y件结�?Ability to Complete Third-Party Application Steps)
<img src ="http://www.aygfsteel.com/ldz112/aggbug/305444.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/ldz112/" target="_blank">李大�?/a> 2009-12-10 16:34 <a href="http://www.aygfsteel.com/ldz112/archive/2009/12/10/305444.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>也谈需求变�?/title><link>http://www.aygfsteel.com/ldz112/archive/2009/12/08/305129.html</link><dc:creator>李大�?/dc:creator><author>李大�?/author><pubDate>Tue, 08 Dec 2009 03:29:00 GMT</pubDate><guid>http://www.aygfsteel.com/ldz112/archive/2009/12/08/305129.html</guid><wfw:comment>http://www.aygfsteel.com/ldz112/comments/305129.html</wfw:comment><comments>http://www.aygfsteel.com/ldz112/archive/2009/12/08/305129.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/ldz112/comments/commentRss/305129.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/ldz112/services/trackbacks/305129.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp; 与传�l�行业相比，软�g的需求具有不���定性，�q�种情况贯穿与��Y件工�E�的每个阶段�Q��ؓ了解册����U�不���定性，软�g工程采取了一�p�d��的措施进行应对，不管是从软�g工程斚w��、设计方�?�q�是从引导方面都需�q�行�Q�唯一的目的就是减���该��目的风险�?br />
<br />
&nbsp;&nbsp;&nbsp;&nbsp; 下面讨论下需求变更中比较常见�?�U�情�?br />
<br />
&nbsp;&nbsp;&nbsp;&nbsp; 一、需求镀�?br />
<br />
&nbsp;&nbsp;&nbsp;&nbsp; <br />
&nbsp;&nbsp;&nbsp;&nbsp; 二、需求蔓�?br />
<br />
<br />
<img src ="http://www.aygfsteel.com/ldz112/aggbug/305129.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/ldz112/" target="_blank">李大�?/a> 2009-12-08 11:29 <a href="http://www.aygfsteel.com/ldz112/archive/2009/12/08/305129.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>Oracle培训�?/title><link>http://www.aygfsteel.com/ldz112/archive/2008/08/09/221081.html</link><dc:creator>李大�?/dc:creator><author>李大�?/author><pubDate>Sat, 09 Aug 2008 15:44:00 GMT</pubDate><guid>http://www.aygfsteel.com/ldz112/archive/2008/08/09/221081.html</guid><wfw:comment>http://www.aygfsteel.com/ldz112/comments/221081.html</wfw:comment><comments>http://www.aygfsteel.com/ldz112/archive/2008/08/09/221081.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/ldz112/comments/commentRss/221081.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/ldz112/services/trackbacks/221081.html</trackback:ping><description><![CDATA[<p>没有了周末，没有了奥�q�，只剩下甲骨了</p>
<p>投入了这么多旉���也该有所回报�Q�故写下此文</p>
<p>开始，不用想也知道是有关Oracle的基本结构，�q�东东但凡有跟Oracle的相关书�c�都有介�l�，再加上由于本人看书有那种两天打鱼三条晒网的习惯，所以比较的熟悉�Q�基本上�E�微的听了下</p>
<p>体系�l�构包括�Q�物理结构的几个文�g�Q�SGA和进�E�（window为多�U�程�Q?br />
物理�l�构包括�Q�ADMIN、ORACLE HOME及ORADATA�{?br />
admin目录下主要保存参数及其相应的日志�Q�其中主要的日志是alert.log�Q�一般的Oracle出现的问题这里都可以发现<br />
oracle home 主要提供二进制文�Ӟ��可执行程序，�|�络文�g�Q�nls文�g�{?br />
oradata 提供数据 日志 控制 参数文�g<br />
其中如果数据库奔溃，只要有数�?日志 控制文�g卛_��马上恢复<br />
日志文�g 记录每次操作修改�Q�采用��@环��用分区机�?br />
控制文�g协调两者同�?br />
数据文�gscn�?lt;日志文�gscn�?br />
逻辑�l�构<br />
一个数据库服务可以有多个数据库实例<br />
实例=一�l�进�E?内存</p>
<p>�q�程<br />
�׃�n数据库与专用数据�?br />
专用数据库用于一对一�pȝ���Q�事务性要求比较高�Q�主要应用于实时�pȝ��<br />
�׃�n数据库通过调度器�ؓ每个用户�q�程分配服务�q�程</p>
<p>�q�有一堆的后台�q�程���没怎么��C��</p>
<p>然后介绍了些处理sql语句的阶�D�，分析执行�q�回</p>
<p>到这里基本上把oracle的基����l�构介绍了下</p>
<p>下面部分介绍了系�l�开发过�E�的通用开发周�?br />
主要考虑以下几个斚w���Q�大数据量（分区 一般一个分�?00M�Q�，层次�Q�数据仓库维度的概念�Q�，索引�Q�表冗余</p>
<p>主要通过业务分析和聚�c�d���?br />
我这�ơ第一�ơ听说聚�c�d��析呵～～�?br />
��x��据业务的�Ҏ��把�怼�功能的维度分析出来，好像�q�挺拗口的，其实很简单，比如�Q�电信计费业务，可以通过月䆾�Q�不�q�今天培训上提出了，2.7亿条数据�Q�按用户��L��/1000�q�样每个区就�U�等�?00M提高处理效率<br />
处理分区语句�C�Z���Q?br />
Create Table t(owner, object_name, subobject_name, object_id, data_object_id, object_type, created,<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; last_ddl_time, timestamp, status, temporary, generated, secondary)<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Partition By Range(object_id)<br />
&nbsp;&nbsp;&nbsp;&nbsp; (Partition p_3000 Values Less Than(3000) Tablespace users,<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Partition p_6000 Values Less than(6000) Tablespace users,<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Partition p_9000 Values Less Than(9000) Tablespace users,<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Partition p_12000 Values Less Than(12000) Tablespace users,<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Partition p_15000 Values Less Than(15000) Tablespace users,<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Partition p_18000 Values Less Than(18000) Tablespace users,<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Partition p_21000 Values Less Than(21000) Tablespace users,<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Partition p_24000 Values Less Than(24000) Tablespace users,<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Partition p_27000 Values Less Than(27000) Tablespace users,<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Partition p_others Values Less Than(Maxvalue) Tablespace users<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; )<br />
&nbsp;&nbsp; As<br />
&nbsp;&nbsp; Select owner, object_name, subobject_name, object_id, data_object_id, object_type, created,<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; last_ddl_time, timestamp, status, temporary, generated, secondary<br />
&nbsp;From dba_objects;</p>
<p>Create Table t(owner, object_name, subobject_name, object_id, data_object_id, object_type, created,<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; last_ddl_time, timestamp, status, temporary, generated, secondary)<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Partition By list(OWNER)<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (Partition p_1&nbsp; Values ('HR','SCOTT') Tablespace users,<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Partition p_2 Values ('MDSYS') Tablespace users,<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Partition p_3 Values ('SH','SYS') Tablespace users,<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Partition p_4 Values ('OE','OLAPSYS','SYSTEM') Tablespace users,<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Partition p_5 Values ('ODM','ODM_MTR') Tablespace users,<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Partition p_6 Values ('QS','QS_CS','QS_ES','QS_OS','QS_WS','WKSYS','WMSYS') Tablespace users,<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Partition p_7 Values ('PM','PUBLIC') Tablespace users,<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Partition p_8 Values (DEFAULT) Tablespace users<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; )<br />
&nbsp;&nbsp; As<br />
&nbsp;&nbsp; Select owner, object_name, subobject_name, object_id, data_object_id, object_type, created,<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; last_ddl_time, timestamp, status, temporary, generated, secondary<br />
&nbsp;From dba_objects;</p>
<p>&nbsp;<br />
</p>
<p>累了�Q�今天就写到�q?&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p><br />
<br />
&nbsp;</p>
<img src ="http://www.aygfsteel.com/ldz112/aggbug/221081.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/ldz112/" target="_blank">李大�?/a> 2008-08-09 23:44 <a href="http://www.aygfsteel.com/ldz112/archive/2008/08/09/221081.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>myeclipse中hibernate的配�|�问�?/title><link>http://www.aygfsteel.com/ldz112/archive/2008/05/23/202334.html</link><dc:creator>李大�?/dc:creator><author>李大�?/author><pubDate>Fri, 23 May 2008 02:41:00 GMT</pubDate><guid>http://www.aygfsteel.com/ldz112/archive/2008/05/23/202334.html</guid><wfw:comment>http://www.aygfsteel.com/ldz112/comments/202334.html</wfw:comment><comments>http://www.aygfsteel.com/ldz112/archive/2008/05/23/202334.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/ldz112/comments/commentRss/202334.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/ldz112/services/trackbacks/202334.html</trackback:ping><description><![CDATA[在搭建系�l�过�E�中�Q�俺��x��配置文�g攑ֈ�一个配�|�文件下�l�一�q�行���理�Q�所以把applicationContext.xml文�g从默认生成的src目录下拷贝到我配�|�的config的目录下�Q�此时系�l�表面上没有什么异常现象，但还是忽略了一炚w��成了一点小问题�?br />
<br />
下一步进行hibernate搭徏�q�程中选用spring DAO却不能选择了，明明已经导入了spring的框�Ӟ����Z��么还是不能选择�Q�看来我刚才的操作有可能引�v�q�个配置问题�Q�打开�pȝ��生成�?springBeans文�g发现没有��M��spring的配�|�文件消息，发现可能问题���在�q�当中�?br />
<br />
重新生成个项目，导入spring�Q�打开.springBeans如下<br />
<br />
&lt;?xml version="1.0" encoding="UTF-8"?&gt;<br />
&lt;beansProjectDescription&gt;<br />
&nbsp;&nbsp;&nbsp; &lt;configExtensions&gt;<br />
&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &lt;configExtension&gt;xml&lt;/configExtension&gt;<br />
&nbsp;&nbsp;&nbsp; &lt;/configExtensions&gt;<br />
&nbsp;&nbsp;&nbsp; &lt;configs&gt;<br />
&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &lt;config&gt;config/applicationContext.xml&lt;/config&gt;<br />
&nbsp;&nbsp;&nbsp; &lt;/configs&gt;<br />
&nbsp;&nbsp;&nbsp; &lt;configSets&gt;<br />
&nbsp;&nbsp;&nbsp; &lt;/configSets&gt;<br />
&nbsp;&nbsp;&nbsp; &lt;springVersion&gt;2.0&lt;/springVersion&gt;<br />
&lt;/beansProjectDescription&gt;<br />
<br />
果然�׃��我修改了applicationContext.xml的�\径导致configs中的配置丢失了，加上&lt;config&gt;config/applicationContext.xml&lt;/config&gt;后，�pȝ��果然正常的顺利的配置了�?br />
<br />
���结<br />
学习�q�程中，不要一味的按照demo的操作步骤去配置�Q�尽量按自己的思�\��d���Q�能发现不少的问题，提高自己对该内容的认识�?br />
<br />
<br />
<img src ="http://www.aygfsteel.com/ldz112/aggbug/202334.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/ldz112/" target="_blank">李大�?/a> 2008-05-23 10:41 <a href="http://www.aygfsteel.com/ldz112/archive/2008/05/23/202334.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>与java无关</title><link>http://www.aygfsteel.com/ldz112/archive/2008/03/21/187705.html</link><dc:creator>李大�?/dc:creator><author>李大�?/author><pubDate>Fri, 21 Mar 2008 06:30:00 GMT</pubDate><guid>http://www.aygfsteel.com/ldz112/archive/2008/03/21/187705.html</guid><wfw:comment>http://www.aygfsteel.com/ldz112/comments/187705.html</wfw:comment><comments>http://www.aygfsteel.com/ldz112/archive/2008/03/21/187705.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/ldz112/comments/commentRss/187705.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/ldz112/services/trackbacks/187705.html</trackback:ping><description><![CDATA[呵～～～<br />
<br />
不知道怎么会想赯���个标题，毕业了将�q?�q�_��没有什么突��_��也没什么目�?br />
<br />
好像�Q�好好活着���是我的生活�Q�但是都没做什么有意义的事<br />
<br />
02�q�_��我�{行了�Q�从电视工作者�{变�ؓ当时比较旉���的IT工作者，我那时觉得自己有点能�?br />
<br />
��d���Q�我��x��了，��L��做些�H�破的事�Q�但是好像到那都一��P��我还是我�Q�生�z�M��样在�l�箋<br />
<br />
今年�Q?8�q�_��发生了很多事�Q�然我感到茫�Ӟ���H�然很想知道�Q�自己适合做什么，喜欢做什么，目标是什�?br />
<br />
曄���一位合作过的同事给我了一个评��P��我记忆犹斎ͼ��Ҏ��功的渴望没那么强烈，�ȝ��了我的发�?br />
<br />
我想我对自己的认知，是，我都没有什么目标，哪有什么成功的状�?br />
<br />
也许环境真的�Ҏ��来说真的很重要，但我需要什么环境，能在�q�个环境中扮演的角色�Q�对我来说还是未知数<br />
<br />
�q�期目标真的是想把目标明���，其实也有�Ҏ��胧的轮廓�Q�但不清晰�?br />
<br />
��M���Q�要明确自己�Q�自��q��环境�Q?
<img src ="http://www.aygfsteel.com/ldz112/aggbug/187705.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/ldz112/" target="_blank">李大�?/a> 2008-03-21 14:30 <a href="http://www.aygfsteel.com/ldz112/archive/2008/03/21/187705.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>KM参与�?/title><link>http://www.aygfsteel.com/ldz112/archive/2007/09/12/144556.html</link><dc:creator>李大�?/dc:creator><author>李大�?/author><pubDate>Wed, 12 Sep 2007 09:31:00 GMT</pubDate><guid>http://www.aygfsteel.com/ldz112/archive/2007/09/12/144556.html</guid><wfw:comment>http://www.aygfsteel.com/ldz112/comments/144556.html</wfw:comment><comments>http://www.aygfsteel.com/ldz112/archive/2007/09/12/144556.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/ldz112/comments/commentRss/144556.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/ldz112/services/trackbacks/144556.html</trackback:ping><description><![CDATA[今天参与跟IBM有关的KM的项目会议，�׃��某些原因比较�q�的收到通知�Q�不�q�还好中途赶上了<br />
<br />
下午的会议主要有俩个斚w��的内容进行讨论，一个是KM的接口流�E�处理，�W�二是针对KM的权限管理进行讨�?br />
<br />
�l�过讨论�Q�基本上对�h员上的安排有一定的认识<br />
<br />
主要感受���是�Q�他们的��目会议的讨论比较有�Ȁ情，�Ҏ��每个人的分工情况�Q�根据针对该斚w��不同的认识互相进行解决答�?br />
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<img src ="http://www.aygfsteel.com/ldz112/aggbug/144556.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/ldz112/" target="_blank">李大�?/a> 2007-09-12 17:31 <a href="http://www.aygfsteel.com/ldz112/archive/2007/09/12/144556.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>Drools</title><link>http://www.aygfsteel.com/ldz112/archive/2007/08/20/138069.html</link><dc:creator>李大�?/dc:creator><author>李大�?/author><pubDate>Mon, 20 Aug 2007 03:20:00 GMT</pubDate><guid>http://www.aygfsteel.com/ldz112/archive/2007/08/20/138069.html</guid><wfw:comment>http://www.aygfsteel.com/ldz112/comments/138069.html</wfw:comment><comments>http://www.aygfsteel.com/ldz112/archive/2007/08/20/138069.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/ldz112/comments/commentRss/138069.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/ldz112/services/trackbacks/138069.html</trackback:ping><description><![CDATA[<p>一、什么是Drools<br>&nbsp;&nbsp;&nbsp; Drools是一个Bob McWhirter开发的开源项目，��Z��Charles Forgy's的Rete���法的，专�ؓJava语言所设计的规则引擎�?br>&nbsp;&nbsp;&nbsp; Rete���法应用于面向对象的接口�������Z��商业对象的商业规则的表达更�ؓ自然�?br><br>二、�ؓ什么要引入规则引擎<br>&nbsp;&nbsp;&nbsp; 对于大多数项目的应用�Q�一般通过选择些比较经典的、生命力强的框架�Q�能使我们的开发更专注于商业逻辑的开发，提高我们的开发效率�?br>�q�些框架包括表现层框�Ӟ��Struts, JSF�Q?持久化框�Ӟ��JDO, Hibernate,ibatis�Q�以及结构框�?EJB, Spring), �q�有其它很多。每�U�框枉���各有所长，�l�开发者提供子许多&#8220;卛_��即用&#8221;的功能。��用框架来部��v应用意味着你避免了许多让�h厌烦的细节，让你集中注意力到关键之处。然而这些框架没有商业逻辑斚w��的，但对于项目来��_��需求变更又是不可避免的�Q�如何更大限度的分离商业逻辑�Q�避免�؜淆于一般的���程控制中�?/p>
<br>
<p><img src="http://www.aygfsteel.com/images/blogjava_net/ldz112/javaKJ.jpg" border="0"></p>
<p>�Ҏ��上图�Q�可以清晰的看出如果有个商业逻辑框架存在�Q�可以提高项目的灉|��性、可�l�护性，从而达到敏捷开发�?br><br></p>
<p>三、什么时候适合用规则引�?br>1、项目的复杂�?/p>
<p>如果一个项目是一个轻量��的应用，跟大多数框架一样需要进行框架上复杂度的评估�Q�以适应整个��目的管理�?/p>
<p>下面讨论下EJB�?/p>
<p>��Z��么现在大多数J2EE应用摒弃EJB?</p>
<p>EJB��Z��提供企业�U�应用集成了持久化、隔���L��、安全性与事务完整性等�pȝ��服务�Q���开发者专注于业务本��n要解决的实际问题�Q�表明上看上去这��L���pȝ�����化了我们应用的开发，但这些业务功能实现的bean��Z��能在EJB容器���理下顺利运行，需要提供一�p�d��的模版接口，而且在业务逻辑中需要加入管理bean生命�Ҏ��的功能。这些代码的入��R性、紧耦合性、重复性��开发的风险及不���定因素急剧上升�Q�而且对于各个EJB容器厂商的相��x��准都不一��_����D���pȝ��的不可移植性都大大增加了整个项目的风险�?/p>
<p>四、怎么用Drools</p>
<br><br>五、HelloWorld<br><br>该示例由两部分组成， 一个是调用规则的test.jsp �Q?<br><br>//讄���一个测试用的VO <br>Vo vo = new Vo(); <br>vo.setPoStatus("A:draft"); <br><br>//��d��规则 <br>RuleBase ruleBase = RuleBaseBuilder.buildFromURL("rule.drl"); <br><br>//把vo攑օ�WorkingMemory中�ƈ执行 <br>WorkingMemory workingMemory = ruleBase.newWorkingMemory( ); <br>workingMemory.assertObject( vo ); <br>workingMemory.fireAllRules( ); <br><br>//昄����l�果 <br>out.print(po.getPoStatus()); <br><br>一个是规则文�grule.drl�Q?<br><br>&lt;rule-set name="test rules" <br>&lt;rule name="Bob Likes Cheese"&gt; <br>&lt;parameter identifier="vo"&gt; <br>&lt;java:class&gt;com.ito.vo&lt;/java:class&gt; <br>&lt;/parameter&gt; <br><br>&lt;java:condition&gt;vo.getStatus().equals("A:draft")&lt;/java:condition&gt; <br><br>&lt;java:consequence&gt; <br>vo.setStatus("B:order"); <br>&lt;/java:consequence&gt; <br>&lt;/rule&gt; <br>&lt;/rule-set&gt; <br><br>整个规则分成三段�Q?�W�一�D�定义刚刚放入的对象�Q?�W�二�D는�Java语法判断条�g�Q?�W�三�D��ؓ条�g�W�合时的执行语句 <br><br>�l�过���范围的试用�Q�发现没有这么简单，因�ؓDrools主要提供了一个RETE的规则匹配算法和一个Script Engine�Q�具体怎么用，�q�要靠自己。如果drl文�g的定义方式和RETE���法能够使条件的表达大大���化，那么它就是有用的。否则，一�D�重构后的代码能够达到和drl文�g�总�的功能。所以，�q�是要多看点基础�Q�把Business Rules用在正确的地斏V�?<br> <img src ="http://www.aygfsteel.com/ldz112/aggbug/138069.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/ldz112/" target="_blank">李大�?/a> 2007-08-20 11:20 <a href="http://www.aygfsteel.com/ldz112/archive/2007/08/20/138069.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item></channel></rss>                                                                                                                                                                                         <footer>
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