关于通信EMAIL的类

package USTC;

import java.util.*;

import javax.servlet.http.*;

/**

*

* <br>Title:关于通信EMAIL的类 </br>

*

* <br>Description: 目前只封装了部分的功能，需要日后完善 </br>

*

* <br>Copyright: Copyright (c) 2005</br>

*

* <br>公司: xxxxx</br>

* <br>作者：xxx</br>

* @version 1.0

*/

public class Email {

public Email() {

}

private final static String Word="application/msword;charset=GB2312";

private final static String Excel="application/x-msexcel;charset=GB2312";

private final static String normal="text/html;charset=GB2312";

/**

* 判断是否为一个合法的EMAIL地址

* @param person_email String

* @return String

*/

public static boolean isValid(String person_email)

{

// Hashtable hashtable=new Hashtable();

if(person_email==null)

{person_email="";

}

StringTokenizer fenxi=new StringTokenizer(person_email," @");

int n=fenxi.countTokens();

if(n>=3)

{return true;

}

else

{

return false;

// return ("<BR>"+"您注册的名字是"+person_name);

}

}

/**

* 将网页格式设置为WORD形式

* @param request HttpServletResponse

*/

public static void setWord(HttpServletResponse request){

request.setContentType(Email.Word);

}

/**

* 将网页格式设置为Excel形式

* @param request HttpServletResponse

*/

public static void setExcel(HttpServletResponse request){

request.setContentType(Email.Excel);

}

/**

* 将网页格式设置为一般形式

* @param request HttpServletResponse

*/

public static void setNormal(HttpServletResponse request){

request.setContentType(Email.normal);

}

}