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	<title>Hardy.九日志 &#187; 数据库</title>
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		<title>靠谱</title>
		<link>http://www.9ri.net/blog/something-wrong-with-metastage/</link>
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		<pubDate>Fri, 28 Nov 2008 07:24:18 +0000</pubDate>
		<dc:creator>Hardy</dc:creator>
				<category><![CDATA[我是工作狂]]></category>
		<category><![CDATA[itouch]]></category>
		<category><![CDATA[MetaBroker]]></category>
		<category><![CDATA[Metastage]]></category>
		<category><![CDATA[健康]]></category>
		<category><![CDATA[客户端]]></category>
		<category><![CDATA[感冒]]></category>
		<category><![CDATA[数据库]]></category>
		<category><![CDATA[文档]]></category>
		<category><![CDATA[服务器]]></category>
		<category><![CDATA[英语]]></category>

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		<description><![CDATA[今天突击看了50页的英文手册，已经渐渐习惯了读IBM编写的文档。而且我把全部PDF导成40兆的TXT导入我的iTouch中，上班读，吃饭读，蹲厕所要读，在回家路上也要读，读读读读到要吐。 我怎么这么爱读了？ 以前做什么都是先搭环境，当成功运行一个helloworld，就基本上搞定了，其他的就是轻车熟路的通用知识迁移。而metastage却没这么简单，客户端服务端的搭建只是一小部分，如果真的想把元数据管理用起来，还要设计model，用MetaBroker做import，然后create directory。这也只是我现在能够理解的范畴。我肯定，这里面的事儿肯定是越看越多。 之所以这么难，关键是没人用过，不仅我周围没人用过，中国也没几个人用过，IBM给的客服电话都在西半球，网上能找到的中文介绍只有一篇，看的云遮雾绕的。花了挺大的功夫终于人肉到了这篇文章作者的mail。写了一封感人至深的求救信过去，谁知道这个人是不是还健在呢，但愿能回信吧？ 感冒要跟我说再见了，继续喝水送它一程。 Related posts:终于有点进展了 继续写求救信 JSP连接SYBASE数据库步骤<table class="wumii-related-items" cellspacing="0" cellpadding="2" border="0" width="100%" style="clear: both;">
    
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</ol>]]></description>
			<content:encoded><![CDATA[<p><a rel="attachment wp-att-655963" href="http://www.9ri.net/?attachment_id=655963" title="00002.GIF"><img src="http://www.9ri.net/wp-content/uploads/170/17099/2008/11/00002.GIF" alt="00002.GIF" /></a></p>
<p>今天突击看了50页的英文手册，已经渐渐习惯了读IBM编写的文档。而且我把全部PDF导成40兆的TXT导入我的iTouch中，上班读，吃饭读，蹲厕所要读，在回家路上也要读，读读读读到要吐。</p>
<p>我怎么这么爱读了？</p>
<p>以前做什么都是先搭环境，当成功运行一个helloworld，就基本上搞定了，其他的就是轻车熟路的通用知识迁移。而metastage却没这么简单，客户端服务端的搭建只是一小部分，如果真的想把元数据管理用起来，还要设计model，用MetaBroker做import，然后create directory。这也只是我现在能够理解的范畴。我肯定，这里面的事儿肯定是越看越多。</p>
<p>之所以这么难，关键是没人用过，不仅我周围没人用过，中国也没几个人用过，IBM给的客服电话都在西半球，网上能找到的中文介绍只有一篇，看的云遮雾绕的。花了挺大的功夫终于人肉到了这篇文章作者的mail。写了一封感人至深的求救信过去，谁知道这个人是不是还健在呢，但愿能回信吧？</p>
<p>感冒要跟我说再见了，继续喝水送它一程。</p>
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</ol></p>]]></content:encoded>
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		<title>终于有点进展了</title>
		<link>http://www.9ri.net/blog/connect-to-db-seccess/</link>
		<comments>http://www.9ri.net/blog/connect-to-db-seccess/#comments</comments>
		<pubDate>Fri, 28 Nov 2008 07:20:12 +0000</pubDate>
		<dc:creator>Hardy</dc:creator>
				<category><![CDATA[我是工作狂]]></category>
		<category><![CDATA[Metastage]]></category>
		<category><![CDATA[ODBC]]></category>
		<category><![CDATA[元数据]]></category>
		<category><![CDATA[数据库]]></category>

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		<description><![CDATA[上周的metastage快把我搞疯了，基本上什么成果都没有。 今天，动用了一台PC和我的本子并行才搞定。 数据库终于连接上了，不用光看那鸟文的文档了。 Related posts:继续写求救信 上火啊 靠谱<table class="wumii-related-items" cellspacing="0" cellpadding="2" border="0" width="100%" style="clear: both;">
    
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</ol>]]></description>
			<content:encoded><![CDATA[<p><a rel="attachment wp-att-655961" href="http://www.9ri.net/?attachment_id=655961" title="000.gif"><img src="http://www.9ri.net/wp-content/uploads/170/17099/2008/11/000.gif" alt="000.gif" /></a></p>
<p>上周的metastage快把我搞疯了，基本上什么成果都没有。</p>
<p>今天，动用了一台PC和我的本子并行才搞定。</p>
<p>数据库终于连接上了，不用光看那鸟文的文档了。</p>
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		<title>JSP连接SYBASE数据库步骤</title>
		<link>http://www.9ri.net/blog/jsp-connection-sybase-db-ways/</link>
		<comments>http://www.9ri.net/blog/jsp-connection-sybase-db-ways/#comments</comments>
		<pubDate>Wed, 10 Sep 2008 15:03:21 +0000</pubDate>
		<dc:creator>Hardy</dc:creator>
				<category><![CDATA[我是工作狂]]></category>
		<category><![CDATA[Eclipse]]></category>
		<category><![CDATA[IDE]]></category>
		<category><![CDATA[JDBC]]></category>
		<category><![CDATA[JDK]]></category>
		<category><![CDATA[JRE]]></category>
		<category><![CDATA[jsp]]></category>
		<category><![CDATA[数据库]]></category>

		<guid isPermaLink="false">http://hardy.yo2.cn/archives/652222</guid>
		<description><![CDATA[    终于连上数据库了，对我来说，像VB、C++、Asp.Net、JSP在语法上都基本上一样，毕竟咱也是接受了将近三年的面向对象设计的专业熏陶，写个Hello World对我来说就是扫一遍教程的功夫。JAVA我是学过的，不过没连过数据库，而且以也没用过sybase数据库，所以我今天的重点放在连接数据库。     考虑到要写就写个能留芳百世，受用于人的文章，我还是把从配置java环境开始到如何连接数据库的step by step详细罗列。 首先是JRE的安装,JRE全称是java运行环境（Java Runtime Environment），有了他你就可以运行编译好的java类和java小程序。你可以去java.sun.com上去下载最新的版本，一路next，无需其他配置。 然后就是JDK的安装，JDK 是Java开发工具包 (Java  Development Kit) 的缩写。它是一种用于构建在 Java 平台上发布的应用程序、applet 和组件的开发环境。简单说JDK将正确的java的源文件编译成可执行程序和封装类。有了它你的代码才能工作。JDK的环境配置网上一搜一大把，我就不再赘述了。 有了编译环境以后，你还要选择一款称心的IDE，IDE是集成开发环境(Integrated Development Environment) 的缩写。当然如果你愿意，Notepad足可以完成任何软件的开发。但是有工具为你提供方便谁不喜欢呢。目前流行的JAVA IDE有Eclipse、NetBeans，前者是IBM开发的源码框架，后者是完全有SUN公司研发并且为官方推荐使用IDE，两款软件均为开源程序。我选择是MyEclipse，MyEclipse为Eclipse提供了一个大量私有和开源的Java工具的集合，这解决了各种开源工具的不一致和缺点。以下和IDE有关的描述均为MyEclipse环境。 如果您仅为了解如何连接数据而来，那么前3步可以无视。接下里你要了解什么是JDBC。我花了一下午时间研究JDBC，Java Data Base Connectivity,java数据库连接。这是一个接口，人们按照这个接口开发出针对各种数据库的连接方法。这样的好处就是，如果你学会如何连接Sybase的数据库了，那么你几乎就掌握了Mysql，SQL Server，DB2，Oracle数据的方法，至于每种数据库和JDBC之间的复杂连接关系你完全不必关心。我从sybase网站上下载到jconnect6.05.zip （http://www.sybase.com/detail?id=1009726），你只需要把里面的jconn3d.jar拷出来，放在一个目录下。然后在classpath后面追上这个目录。 现在已经准备就绪只差编码了。连接sybase的JDBC代码如下 Class.forName(“com.sybase.jdbc.SybDriver”).newInstance(); String url =” jdbc:sybase:Tds:localhost:5007/myDB”; //myDB为你的数据库名 Properties sysProps = System.getProperties(); SysProps.put(“user”,”userid”); SysProps.put(“password”,”user_password”); Connection conn= DriverManager.getConnection(url, SysProps); 这样你得到了conn连接句柄，你可以通过这个句柄向数据库发布SQL命令。 用 conn 创建 Statement对象的实例。在下面的例子中， 我们使用我们的 Connection 对象<a href="http://www.9ri.net/blog/jsp-connection-sybase-db-ways/"> <br /><br /> (More)…</a><table class="wumii-related-items" cellspacing="0" cellpadding="3" border="0"  style="clear: both;">
    
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			<content:encoded><![CDATA[<p>    终于连上数据库了，对我来说，像VB、C++、Asp.Net、JSP在语法上都基本上一样，毕竟咱也是接受了将近三年的面向对象设计的专业熏陶，写个Hello World对我来说就是扫一遍教程的功夫。JAVA我是学过的，不过没连过数据库，而且以也没用过sybase数据库，所以我今天的重点放在连接数据库。</p>
<p>    考虑到要写就写个能留芳百世，受用于人的文章，我还是把从配置java环境开始到如何连接数据库的step by step详细罗列。</p>
<ol>
<li>首先是JRE的安装,JRE全称是java运行环境（Java Runtime Environment），有了他你就可以运行编译好的java类和java小程序。你可以去java.sun.com上去下载最新的版本，一路next，无需其他配置。</li>
<li>然后就是JDK的安装，JDK 是Java开发工具包 (Java  Development Kit) 的缩写。它是一种用于构建在 Java 平台上发布的应用程序、applet 和组件的开发环境。简单说JDK将正确的java的源文件编译成可执行程序和封装类。有了它你的代码才能工作。JDK的环境配置网上一搜一大把，我就不再赘述了。</li>
<li>有了编译环境以后，你还要选择一款称心的IDE，IDE是集成开发环境(Integrated Development Environment) 的缩写。当然如果你愿意，Notepad足可以完成任何软件的开发。但是有工具为你提供方便谁不喜欢呢。目前流行的JAVA IDE有Eclipse、NetBeans，前者是IBM开发的源码框架，后者是完全有SUN公司研发并且为官方推荐使用IDE，两款软件均为开源程序。我选择是MyEclipse，MyEclipse为Eclipse提供了一个大量私有和开源的Java工具的集合，这解决了各种开源工具的不一致和缺点。以下和IDE有关的描述均为MyEclipse环境。</li>
<li>如果您仅为了解如何连接数据而来，那么前3步可以无视。接下里你要了解什么是JDBC。我花了一下午时间研究JDBC，Java Data Base Connectivity,java数据库连接。这是一个接口，人们按照这个接口开发出针对各种数据库的连接方法。这样的好处就是，如果你学会如何连接Sybase的数据库了，那么你几乎就掌握了Mysql，SQL Server，DB2，Oracle数据的方法，至于每种数据库和JDBC之间的复杂连接关系你完全不必关心。我从sybase网站上下载到jconnect6.05.zip （<a href="http://www.sybase.com/detail?id=1009726">http://www.sybase.com/detail?id=1009726</a>），你只需要把里面的jconn3d.jar拷出来，放在一个目录下。然后在classpath后面追上这个目录。</li>
<li>现在已经准备就绪只差编码了。连接sybase的JDBC代码如下<br />
<blockquote><p>Class.forName(“com.sybase.jdbc.SybDriver”).newInstance();<br />
String url =” jdbc:sybase:Tds:localhost:5007/myDB”;<br />
//myDB为你的数据库名<br />
Properties sysProps = System.getProperties();<br />
SysProps.put(“user”,”userid”);<br />
SysProps.put(“password”,”user_password”);<br />
Connection conn= DriverManager.getConnection(url, SysProps);</p></blockquote>
<p>这样你得到了conn连接句柄，你可以通过这个句柄向数据库发布SQL命令。<br />
用 conn 创建 Statement对象的实例。在下面的例子中，<br />
我们使用我们的 Connection 对象 con 创建 Statement 对象 stmt：</p>
<blockquote><p>Statement stmt = con.createStatement();</p></blockquote>
<p>现在我们可以用一个ResultSet来接收结果集，ResultSet的操作可以查看JAVA的API文档，里面有很详细的介绍。</p>
<blockquote><p>ResultSet rs = stmt.executeQuery(“SELECT a, b FROM TABLE2&#8243;);</p></blockquote>
</li>
<li>恭喜你已经成功连接到数据库，不过要提醒你的是，虽然java有很好的垃圾回收机制. 但是对数据操作完毕之后最好还是显示的断开数据库。</li>
</ol>
<blockquote><p>try<br />
{<br />
if (!conn.isClosed())<br />
{<br />
try<br />
{<br />
conn.close();<br />
} catch (SQLException e)<br />
{<br />
// TODO Auto-generated catch block<br />
e.printStackTrace();<br />
}<br />
} else<br />
{<br />
return;<br />
}<br />
} catch (SQLException e)<br />
{<br />
// TODO Auto-generated catch block<br />
e.printStackTrace();<br />
}</p></blockquote>
<p>好啦，数据库连接基本流程就介绍到这，但是想要更方便的在JSP程序中使用数据库连接，最好将这些代码良好的封装到类里面。写法多种多样，后面的文章中我会按照我的思路编写一个例子，与大家分享。谢谢，如果转帖，请留下我的地址 <a href="http://blog.9ri.net/">http://blog.9ri.net/</a> 和我的邮件 chungxu(at)gmail.com。</p>
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