@求一个邮件验证完整代码！

Question

用户注册提交后，给予对方一封邮件，邮件内容给予一个链接。等到对方链接到相应页面，用户注册完成！有的直接发我邮箱[email protected]  或者[email protected]代码一到，验证通过，直接给分！

Answer 1

这个测试很多遍了，我们用的就是
/**
 * 验证是否是电子邮箱
 */
function isEmail(str)
{
var reg=/^.{1,}[@].{1,}[\.].{1,}$/;
return str.match(reg);
}

Answer 2

转：用到了dnsjava（下载地址：http://www.dnsjava.org/）来获取MX记录。考虑到效率问题可将获取的MX记录保存到xml或数据库，下次使用时先检索本地数据，若不存在再获取其MX记录。import java.io.*;
import java.net.*;
import org.xbill.DNS.*;public class CheckEmail
{
    public static boolean check(String mailTo)
    {
        try {
            if (!mailTo.matches("\w+([-_.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*")) ...{ //判断格式
                return false;
            }
            String hostName = mailTo.split("@")[1];  //获得如163.com
            String host = null;  // MX记录
    
            Lookup lookup = new Lookup(hostName, Type.MX);
            lookup.run();
            if (lookup.getResult() != Lookup.SUCCESSFUL) ...{
                return false;
            }
            else ...{
                Record[] result = lookup.getAnswers();
                host = result[0].getAdditionalName().toString();
            }
            
            Socket socket = new Socket(host, 25);
            BufferedWriter out = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));
            BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
            in.readLine();
            out.write("HELO Sender ");
            out.flush();
            in.readLine();
            out.write("MAIL FROM:<[email protected]> ");
            out.flush();
            in.readLine();
            out.write("RCPT TO:<" + mailTo + "> ");
            out.flush();
            String r = in.readLine();
            out.write("QUIT ");
            out.flush();
            
            out.close();
            in.close();
            socket.close();
            if (!r.startsWith("250")) ...{
                return false;
            }
            else ...{
                return true;
            }
        } catch (Exception e) ...{
            return false;
        }
    }
}

Answer 3

String regex="\\w+([-+.]\\w+)*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*";
System.out.println(mail.matches(regex));
//mail是你邮件的字符串

Answer 4

http://zhangli-lisa.javaeye.com/blog/415347
用这个发邮件吧，里面用到的包你自己下载就行了

Answer 5

javax.mail.MessagingException: Unknown SMTP host~报错原理怎么解决

Answer 6

网上搜javamail 就有很多，http://sjsky.javaeye.com/blog/674591
验证的话只要在mail 的内容里面写上servlet的连接地址并加上用户id，那个servlet的作用就是在数据库里面讲该id的用户激活。

Answer 7

我现在电脑是用代理的，好像这个方法不行啊，能不能通过代理发邮件功能程序，类似FOXMAIL之类的~

Answer 8

下面是报错代码
DEBUG: JavaMail version 1.4.1
DEBUG: successfully loaded file: D:\Java\jdk\jre\lib\javamail.providers
DEBUG: URL jar:file:/D:/glassfish-v2ur2/lib/smtp.jar!/META-INF/javamail.providers
DEBUG: successfully loaded resource: jar:file:/D:/glassfish-v2ur2/lib/smtp.jar!/META-INF/javamail.providers
DEBUG: URL jar:file:/D:/NetBeansProjects/jftregister/build/web/WEB-INF/lib/imap.jar!/META-INF/javamail.providers
DEBUG: successfully loaded resource: jar:file:/D:/NetBeansProjects/jftregister/build/web/WEB-INF/lib/imap.jar!/META-INF/javamail.providers
DEBUG: URL jar:file:/D:/NetBeansProjects/jftregister/build/web/WEB-INF/lib/pop3.jar!/META-INF/javamail.providers
DEBUG: successfully loaded resource: jar:file:/D:/NetBeansProjects/jftregister/build/web/WEB-INF/lib/pop3.jar!/META-INF/javamail.providers
DEBUG: URL jar:file:/D:/NetBeansProjects/jftregister/build/web/WEB-INF/lib/smtp.jar!/META-INF/javamail.providers
DEBUG: successfully loaded resource: jar:file:/D:/NetBeansProjects/jftregister/build/web/WEB-INF/lib/smtp.jar!/META-INF/javamail.providers
DEBUG: successfully loaded resource: /META-INF/javamail.default.providers
DEBUG: Tables of loaded providers
DEBUG: Providers Listed By Class Name: {com.sun.mail.smtp.SMTPSSLTransport=javax.mail.Provider[TRANSPORT,smtps,com.sun.mail.smtp.SMTPSSLTransport,Sun Microsystems, Inc], com.sun.mail.imap.IMAPSSLStore=javax.mail.Provider[STORE,imaps,com.sun.mail.imap.IMAPSSLStore,Sun Microsystems, Inc], com.sun.mail.smtp.SMTPTransport=javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc], com.sun.mail.pop3.POP3SSLStore=javax.mail.Provider[STORE,pop3s,com.sun.mail.pop3.POP3SSLStore,Sun Microsystems, Inc], com.sun.mail.imap.IMAPStore=javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Sun Microsystems, Inc], com.sun.mail.pop3.POP3Store=javax.mail.Provider[STORE,pop3,com.sun.mail.pop3.POP3Store,Sun Microsystems, Inc]}
DEBUG: Providers Listed By Protocol: {imaps=javax.mail.Provider[STORE,imaps,com.sun.mail.imap.IMAPSSLStore,Sun Microsystems, Inc], imap=javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Sun Microsystems, Inc], smtps=javax.mail.Provider[TRANSPORT,smtps,com.sun.mail.smtp.SMTPSSLTransport,Sun Microsystems, Inc], pop3=javax.mail.Provider[STORE,pop3,com.sun.mail.pop3.POP3Store,Sun Microsy stems, Inc], pop3s=javax.mail.Provider[STORE,pop3s,com.sun.mail.pop3.POP3SSLStore,Sun Microsystems, Inc], smtp=javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc]}
DEBUG: successfully loaded resource: /META-INF/javamail.default.address.map
DEBUG: URL jar:file:/D:/glassfish-v2ur2/lib/smtp.jar!/META-INF/javamail.address.map
DEBUG: successfully loaded resource: jar:file:/D:/glassfish-v2ur2/lib/smtp.jar!/META-INF/javamail.address.map
DEBUG: URL jar:file:/D:/NetBeansProjects/jftregister/build/web/WEB-INF/lib/smtp.jar!/META-INF/javamail.address.map
DEBUG: successfully loaded resource: jar:file:/D:/NetBeansProjects/jftregister/build/web/WEB-INF/lib/smtp.jar!/META-INF/javamail.address.map
DEBUG: successfully loaded file: D:\Java\jdk\jre\lib\javamail.address.map
DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc]
DEBUG SMTP: useEhlo true, useAuth true
DEBUG SMTP: useEhlo true, useAuth true
DEBUG SMTP: trying to connect to host "smtp.163.com", port 25, isSSL false
The log message is null.
java.lang.NullPointerException
        at com.sun.enterprise.server.ss.ASSocketService.isLocalClient(ASSocketService.java:428)
        at com.sun.enterprise.server.ss.ASSocketServiceProxy.isLocalClient(ASSocketServiceProxy.java:82)
        at com.sun.enterprise.server.ss.provider.ASPlainSocketImpl.connect(ASPlainSocketImpl.java:290)
        at com.sun.enterprise.server.ss.provider.ASClientSocketImpl.connect(ASClientSocketImpl.java:267)
        at java.net.Socket.connect(Socket.java:519)
        at java.net.Socket.connect(Socket.java:469)
        at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:233)
        at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:189)
        at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1359)
        at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:412)
        at javax.mail.Service.connect(Service.java:310)
        at javax.mail.Service.connect(Service.java:169)
        at javax.mail.Service.connect(Service.java:118)
        at javax.mail.Transport.send0(Transport.java:188)
        at javax.mail.Transport.send(Transport.java:118)
        at jft.db.MailSend.SendMail(MailSend.java:97)
        at org.apache.jsp.jft.findcode.emailupdate_jsp._jspService(emailupdate_jsp.java from :96)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:93)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:831)
        at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:373)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:470)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:364)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:831)
        at org.apache.catalina.core.ApplicationFilterChain.servletService(ApplicationFilterChain.java:411)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:317)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:198)
        at org.apache.struts2.dispatcher.ActionContextCleanUp.doFilter(ActionContextCleanUp.java:99)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:198)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:288)
        at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:271)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:202)
        at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632)
        at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577)
        at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:94)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:206)
        at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632)
        at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:571)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1080)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:150)
        at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632)
        at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:571)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1080)
        at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:272)
        at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.invokeAdapter(DefaultProcessorTask.java:637)
        at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.doProcess(DefaultProcessorTask.java:568)
        at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.process(DefaultProcessorTask.java:813)
        at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.executeProcessorTask(DefaultReadTask.java:341)
        at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:263)
        at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:214)
        at com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:265)
        at com.sun.enterprise.web.connector.grizzly.ssl.SSLWorkerThread.run(SSLWorkerThread.java:106)
邮件发送！

Answer 9

第一次回答问题  多指教
  function isEmail(str){
       var reg = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+((\.[a-zA-Z0-9_-]{2,3}){1,2})$/;
       return reg.test(str);
}