网志人生

April 12, 2006

Java的月份 [Java之旅] — 不想放弃 @ 12:48 am

  昨天写了段代码,用Calendar.getInstance().get(Calendar.MONTH)去取月份。明明是四月,却显示了“3”,纳闷!后来在Calendar.java看到这段:

        The first month of the year is <code>JANUARY</code> which is 0; the last depends on the number of months in a year.

  看来还是多看点文档好啊。

April 10, 2006

笔记:Tomcat脚本 [Java之旅] — 不想放弃 @ 1:43 am

catalina    主要脚本,控制Tomcat调用
cpappend   设置classpath环境变量
digest       生成加密的密码
jasper       JavaServer Pages编译器脚本
jspc       调用jasper的jspc参数
setclasspath  设置classpath环境变量
shutdown    停止Tomcat,调用“catalina stop”
starup       启动Tomcat,调用“catalina start”
tool-wrapper  供digest调用

April 7, 2006

可恶的Tomcat [Java之旅] — 不想放弃 @ 8:47 am

  这两天快被Tomcat搞死了, 一直连不上Oracle。结果今天在台湾的JavaWorld看到网友指点,在Apache的网站上找到了下面这段:

These jar files along with your the jar file for your JDBC driver should be installed in $CATALINA_HOME/common/lib.

NOTE:Third Party drivers should be in jarfiles, not zipfiles. Tomcat only adds $CATALINA_HOME/common/lib/*.jar to the classpath.

NOTE: Do not install these jarfiles in your /WEB-INF/lib, or $JAVA_HOME/jre/lib/ext, or anywhere else. You will experience problems if you install them anyplace other than $CATALINA_HOME/common/lib.

  另外,如果是Oracle 9i,要用ojdbc14.jar

March 31, 2006

SUN也会错 [Java之旅] — 不想放弃 @ 3:24 am

  因为开始学Java了,总是要看《The Java(TM) Tutorial》的。当我看到“How Do These Concepts Translate into Code?”时,就发现有问题了。在源代码ClickMe.java中就写错了,有一部分直径变量RADIUS竟然小写成“radius”了。已经向SUN反馈了。
  BTW:其实这个程序还有一个问题,就是.setLayout和.add要分别改成.contentPane.setLayout和.contentPane.add。

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