Email class
package com.baozi;
import java.io.Serializable;
public class Email implements Serializable{
private static final long serialVersionUID = 1L;
private String mailAdd;
private boolean email;
public Email(){}
public Email(String mailAdd){
this.mailAdd=mailAdd;
}
public boolean IsEmail(){
String Regex="\\w+([-+.']\\w+)*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*";
if(mailAdd.matches(Regex))
email=true;
else
email= false;
return email;
}
public String getMailAdd() {
return mailAdd;
}
public void setMailAdd(String mailAdd) {
this.mailAdd = mailAdd;
}
}
index.jsp
<%@ page language="java" contentType="text/html; charset=gb2312"
pageEncoding="gb2312" isErrorPage="true"%>
<%request.setCharacterEncoding("gb2312"); %>
<!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=gb2312">
<title>Email Check</title>
</head>
<body>
<form action="result.jsp" method="post">
<table align="center" width="300" border="1" height="150">
<tr>
<td colspan="2" align="center">
<b>邮箱检查</b>
</tr>
<tr>
<td align="right">邮箱地址:</td>
<td><input type="text" name="mailAdd"/></td>
</tr>
<tr>
<td colspan="2" align="center">
<input type="submit">
</td>
</tr>
</table>
</form>
</body>
</html>
result.jsp
<%@ page language="java" contentType="text/html; charset=gb2312"
pageEncoding="gb2312"%>
<%request.setCharacterEncoding("gb2312"); %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@page import="com.baozi.*" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>Show Result</title>
</head>
<body>
<%
String mailAdd=request.getParameter("mailAdd");
Email email=new Email(mailAdd);
if(email.IsEmail())
out.println(mailAdd+"<br>是一个标准的Email地址");
else
out.println(mailAdd+"<br>不是一个标准的Email地址");
%>
<a href="index.jsp">返回首页</a>
</body>
</html>
