Java写的一个数字匹配的正则表达式
//abin.jsp<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%><%@page import="java.sql.*" %><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>Hello</title></head><body><a href="page.jsp?id=1">第一个</a><br/><a href="page.jsp?id=2">第二个</a><br/><a href="page.jsp?id=3">第三个</a><br/><a href="page.jsp?id=4">第四个</a><br/><a href="page.jsp?id=5">第五个</a><br/><a href="page.jsp?id=6">第六个</a><br/><a href="page.jsp?id=7">第七个</a><br/><a href="page.jsp?id=8">第八个</a><br/><a href="page.jsp?id=9">第九个</a><br/><a href="page.jsp?id=10">第十个</a><br/></body></html>
//page.jsp
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <%@ page import="java.sql.*,java.util.*,java.util.regex.Matcher,java.util.regex.Pattern" %><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>Mysql Page</title></head><body><%String td=request.getParameter("id");String pattern="";Pattern p=Pattern.compile(pattern);Matcher m=p.matcher(td);boolean result=m.matches();if(result){int tid=Integer.parseInt(td);switch(tid){case 1:out.println("第一个，哈哈，朋友");break;case 2:out.println("第二个，哈哈，朋友");break;case 3:out.println("第三个,哈哈，朋友");break;case 4:out.println("第四个，哈哈，朋友");break;case 5:out.println("第五个，哈哈，朋友");break;case 6:out.println("第六个，哈哈，朋友");break;case 7:out.println("第七个，哈哈，朋友");break;case 8:out.println("第八个，哈哈，朋友");break;case 9:out.println("第九个，哈哈，朋友");break;default:out.println("输出的不是0-9之间的数字");break;}}else{out.println(result);out.println(td);} %></body></html>
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