下载JDK：http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html
下载Eclipse: http://www.eclipse.org/downloads/
下载Tomcat: http://tomcat.apache.org/download-70.cgi
正则表达式：http://www.cnblogs.com/deerchao/archive/2006/08/24/zhengzhe30fengzhongjiaocheng.html