java编程题.doc

/网上找的， 你在这个论坛搜索以下 email的正则表达 看看对不对 import java.io.*; import java.util.regex.*; public class test public static void main(String args) try String s = ; while(!s.equals( q ) System.out.print( input: ); DataInputStream in = new DataInputStream(new BufferedInputStream(System.in); s = in.readLine(); System.out.println( your input is : +s); String check = (a-z0-9A-Z+-|._?)+a-z0-9A-Z(a-z0-9A-Z+(-a-z0-9A-Z+)?.)+a-zA-Z2,$ ; Pattern regex = Ppile(check); Matcher matcher = regex.matcher(s); boolean isMatched = matcher.matches(); if(isMatched) System.out.println( it s a email ); else System.out.println( it s not a email ); catch(Exception e) System.out.println( error +e.getMessage(); to: linlimin2100(天堂马贼) 偶觉得client和server都要验证。client的js验证很容易绕过。 to: 楼主 /* * 检测用户提交的email格式是否正确 * * param email 用户提交的email值 * param stuff 是否必须填写,为true时必须填写,为flase时可不必填写 * return boolean 如用户输入格式正确,则返回true,否则返回false * since 1.0 */ public boolean checkEmail(String email, boolean stuff) StringBuffer invaldMessage = new StringBuffer( ); regex = a-zA-Z0-9_+(a-zA-Z0-9a-zA-Z0-9+.(a-zA-Z0-9.*)a-zA-Z2,5)$ ; p = Ppile(regex, Pattern.CASE_INSENSITIVE); m = p.matcher(email); if (stuff) if (!m.find() return false; else if (!email.equals( ) | email != ) if (!m.find() return false; return true; 对我有用0 丢个板砖0 引用 举报 管理 TOP chw8219 (在天涯) 等级： #7楼 得分：0回复于：2005-11-28 16:36:33只检验: 含有,以 .edu or .com 结束条件的简单 js function validate() var name = .value, emailAddress = ments.value, errorMsg= , errorDetcted = false; if(name = | emailAddress = ) errorMsg += Please fill in all fields! ; errorDetected = true; if(!isEmailAddressValid(emailAddress) if(errorMsg.length 0)errorMsg += n ; errorMsg += Email Address must contain and + end in .com or .edu ; errorDetected = true; if(errorDetected)alert(errorMsg); return !errorDetected; function isEmailAddressValid(s) var atSign = new RegExp( .*().* ), dotEdu = new RegExp(