语源科技BlogJava-Danfo Yamhttp://www.blogjava.net/second/zh-cnWed, 29 Apr 2026 00:05:05 GMTWed, 29 Apr 2026 00:05:05 GMT60(转载)Classloader leaks and PermGen spacehttp://www.blogjava.net/second/archive/2010/05/26/321964.htmlDanfo YamDanfo YamWed, 26 May 2010 15:26:00 GMThttp://www.blogjava.net/second/archive/2010/05/26/321964.htmlhttp://www.blogjava.net/second/comments/321964.htmlhttp://www.blogjava.net/second/archive/2010/05/26/321964.html#Feedback0http://www.blogjava.net/second/comments/commentRss/321964.htmlhttp://www.blogjava.net/second/services/trackbacks/321964.html阅读全文

Danfo Yam 2010-05-26 23:26 发表评论
]]>HUDSON配置全记录 二http://www.blogjava.net/second/archive/2009/09/06/294033.htmlDanfo YamDanfo YamSun, 06 Sep 2009 01:53:00 GMThttp://www.blogjava.net/second/archive/2009/09/06/294033.htmlhttp://www.blogjava.net/second/comments/294033.htmlhttp://www.blogjava.net/second/archive/2009/09/06/294033.html#Feedback0http://www.blogjava.net/second/comments/commentRss/294033.htmlhttp://www.blogjava.net/second/services/trackbacks/294033.html基本配置：
进入Manage Hudson --> Configuration Hudson  阅读全文

Danfo Yam 2009-09-06 09:53 发表评论
]]>HUDSON配置全记录 一http://www.blogjava.net/second/archive/2009/08/07/290279.htmlDanfo YamDanfo YamFri, 07 Aug 2009 14:55:00 GMThttp://www.blogjava.net/second/archive/2009/08/07/290279.htmlhttp://www.blogjava.net/second/comments/290279.htmlhttp://www.blogjava.net/second/archive/2009/08/07/290279.html#Feedback0http://www.blogjava.net/second/comments/commentRss/290279.htmlhttp://www.blogjava.net/second/services/trackbacks/290279.html阅读全文

Danfo Yam 2009-08-07 22:55 发表评论
]]>发布CometQueuehttp://www.blogjava.net/second/archive/2009/06/30/284415.htmlDanfo YamDanfo YamTue, 30 Jun 2009 08:39:00 GMThttp://www.blogjava.net/second/archive/2009/06/30/284415.htmlhttp://www.blogjava.net/second/comments/284415.htmlhttp://www.blogjava.net/second/archive/2009/06/30/284415.html#Feedback3http://www.blogjava.net/second/comments/commentRss/284415.htmlhttp://www.blogjava.net/second/services/trackbacks/284415.html阅读全文

Danfo Yam 2009-06-30 16:39 发表评论
]]>barcode4j生成条形码及打印条码开发介绍http://www.blogjava.net/second/archive/2008/10/04/232395.htmlDanfo YamDanfo YamSat, 04 Oct 2008 14:10:00 GMThttp://www.blogjava.net/second/archive/2008/10/04/232395.htmlhttp://www.blogjava.net/second/comments/232395.htmlhttp://www.blogjava.net/second/archive/2008/10/04/232395.html#Feedback3http://www.blogjava.net/second/comments/commentRss/232395.htmlhttp://www.blogjava.net/second/services/trackbacks/232395.html条形码技术技术在商品流通环节被广泛应用,下面介绍一下barcode4j的开发过程.

下载barcode4j-2.0-bin.zip  目前最新版本是2.0, 解压barcode4j-2.0-bin.zip, 将其中的\lib\avalon-amework-4.2.0.jar和\build\barcode4j.jar文件加入到编译路径中,

在项目的web.xml中添加

<servlet>
    <servlet-name>BarcodeServlet</servlet-name>
    <servlet-class>org.krysalis.barcode4j.servlet.BarcodeServlet</servlet-class>
</servlet>

<servlet-mapping>
    <servlet-name>BarcodeServlet</servlet-name>
    <url-pattern>/genbc</url-pattern>
</servlet-mapping>


项目中创建barcode.jsp

<html>
<body>
<%
    String url = "genbc?type=codabar&msg=123456&fmt=png";
%>
<img src="<%= request.getContextPath() + "/" + url%>"/>
</body>
<script>
</script>
</html>


启动服务器,运行  http://localhost:8080/TestBarCode/barCode.jsp ,效果如下图所示:

下面介绍一下我们常用的一些条形码以及部分barcode4j参数设置:

条形码有一维二维之分,不论是一维还是二维,都划分有不同的码制,应用领域也不同.比如一维的有:英国皇家邮政系统的;有codebar码,图书领域应用广泛;有EAN,UPC,在超市里被广泛应用.不同的码制所能包含的内容也不同,有的只能是数字,有的对长度有限制,在管理领域应用的较多的一维码是Code39或者Code128,能够包含a-b,A-B,0-9等字符.
二维条码常用的有Data Matrix,intel cpu屁股上贴的就是它,PDF417,一些国家的身份证件使用它.我国也有我国制定的一些标准码制.

barcode4j支持以上的这些码制,我们仅需要指定其中的参数,就能生成所需要的条码了:比如type(条码类型),msg(条码的内容),fmt(图片的格式)等等,也可以设置到xsl配置中,根据配置转换成相应的条形码图片.



Danfo Yam 2008-10-04 22:10 发表评论
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