java语言实现邮箱验证功能

邮箱验证功能"/>

java语言实现邮箱验证功能

java语言实现发送邮箱验证码功能

• • • • 效果
      • 前端代码
      • 后端代码

效果

前端代码

<li id="e_mail_li"><span class="user_formtextlr" style="width: 120px;">*电子邮件：</span> <span> <input type="text" style="width: 280px;" id="e_mail" name="select-key:e_mail" value="电子邮件" /></span><span class="user_formtextlr" style="width: 100px;">请填写有效的电子邮件地址。例如：admin@cnipr </span> 
</li>
<li id="e_mail_li"><span class="user_formtextlr" style="width: 120px;">*邮件验证码：</span><span><input type="text" name="code" id="code" placeholder="请输入邮箱的验证码" class="form-control" required><input type="button" name="btn" class="btn btn-default" id="btn" value="发送验证码" onclick="sendMessage()"/></span><span class="user_formtextlr" style="width: 100px;">点击发送邮箱验证码</span>
</li>

//邮箱验证码
$(function(){$("#btn").click(function(){//获取用户输入的邮箱if($("#e_mail").val()){$.ajax({type:"POST",url :"SendEmailServlet?random"+Math.random(),data:{//将邮箱作为参数传给后端email:$("#e_mail").val(),},success:function(data){alert("验证码发送成功，请注意查收。");},})}else{alert("邮箱发送失败");}});
});

//验证码倒计时
var InterValObj; //timer变量，控制时间
var count = 60; //间隔函数，1秒执行
var curCount;//当前剩余秒数
function sendMessage() {curCount = count;//attr()返回被选中的元素属性值并替换为括号中内容，本次将该按钮变为不可用$("#btn").attr("disabled", "true");$("#btn").val(curCount + "秒后可重新发送");//window.setInterval(C,T)按照指定周期调用函数或计算表达式，C：定时要执行的Js代码，T：指定时间（毫秒）//启动计时器，1秒执行一次请求后台发送验证码InterValObj = window.setInterval(SetRemainTime, 1000); 
}
//timer处理函数
function SetRemainTime() {if (curCount == 0) {window.clearInterval(InterValObj);//停止计时器$("#btn").removeAttr("disabled");//启用按钮$("#btn").val("重新发送验证码");} else {curCount--;$("#btn").val(curCount + "秒后可重新发送");}
}

后端代码

import cn.gwssi.di.user.util.JavaMailUtil;
import cn.gwssi.di.user.util.RandomUtil;
import cn.gwssi.di.user.util.htmlText;import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.MimeMessage;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.Properties;@WebServlet("/SendEmailServlet")public class SendEmailServlet extends HttpServlet {//定义程序序列化ID。private static final long serialVersionUID = 1L;@Overrideprotected void doPost(HttpServletRequest req, HttpServletResponse resp)throws ServletException, IOException {System.out.println("邮箱发送功能");try {//获取前台传来的参数String email = req.getParameter("email");// 给用户输入的邮箱发送邮件JavaMailUtil.receiveMailAccount = email; // 1、创建参数配置，用于连接邮箱服务器的参数配置Properties props = new Properties();// 允许debug调试props.setProperty("mail.debug", "true");// 发送服务器需要身份验证props.setProperty("mail.smtp.auth", "true");// 设置右键服务器的主机名props.setProperty("mail.host", JavaMailUtil.emailSMTPHost);// 发送邮件协议名称props.setProperty("mail.transport.protocol", "smtp");// 2、根据配置创建会话对象，用于和邮件服务器交互Session session = Session.getInstance(props);// 设置debug，可以查看详细的发送logsession.setDebug(true);// 3、创建一封邮件String code = RandomUtil.getRandom();System.out.println("邮箱验证码：" + code);String html = htmlText.html(code);MimeMessage message = JavaMailUtil.creatMimeMessage(session,JavaMailUtil.emailAccount,JavaMailUtil.receiveMailAccount, html);// 4、根据session获取邮件传输对象Transport transport = session.getTransport();// 5、使用邮箱账号和密码连接邮箱服务器emailAccount必须与message中的发件人邮箱一致，否则报错transport.connect(JavaMailUtil.emailAccount, JavaMailUtil.emailPassword);// 6、发送邮件,发送所有收件人地址transport.sendMessage(message, message.getAllRecipients());// 7、关闭连接transport.close();//  写入sessionreq.getSession().setAttribute("code", code);} catch (Exception e) {e.printStackTrace();req.getSession().setAttribute("error", "邮件发送失败");}}}

import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import java.io.IOException;
import java.util.Date;public class JavaMailUtil {// 发件人的邮箱public static String emailAccount = "此处填写用于发件人的邮箱";// 发件人邮箱授权码（邮箱内可获取）public static String emailPassword = "发件人邮箱的授权码";// 发件人邮箱服务地址（邮箱内可获取）public static String emailSMTPHost = "发件人邮箱的服务地址";//  收件人邮箱public static String receiveMailAccount = "";public static MimeMessage creatMimeMessage(Session session, String sendMail, String receiveMail, String html) throws MessagingException, IOException {// 1、创建一封邮件对象MimeMessage message = new MimeMessage(session);// 2、From：发件人message.setFrom(new InternetAddress(sendMail, "发送邮件的标题", "UTF-8"));// 3、To:收件人（可以增加多个收件人：抄送或者密送）message.setRecipient(MimeMessage.RecipientType.TO, new InternetAddress(receiveMail, "张三", "UTF-8"));// 4、Subject:邮件主题message.setSubject("邮箱验证","UTF-8");// 5、Content:邮件正文（可以使用Html标签）message.setContent(html,"text/html;charset=UTF-8");// 6、设置发送时间message.setSentDate(new Date());// 7、保存设置message.saveChanges();return message;}
}

/*** Math.random()获取0-1之间的随机数* Math.floor()向下取整* Math.floor(Math.random())获取指定范围内的整数* 例：Math.random()*52  0≤X＜52*     Math.random()*52+1 1≤X<53*     Math.floor(Math.random()*52+1)  1-52随机整数*/public class RandomUtil {public static void main(String[] args) {// 控制台打印System.out.println(RandomUtil.getRandom());}// 随机验证码6位public static String getRandom() {String[] letters = new String[] {"q","w","e","r","t","y","u","i","o","p","a","s","d","f","g","h","j","k","l","z","x","c","v","b","n","m","A","W","E","R","T","Y","U","I","O","P","A","S","D","F","G","H","J","K","L","Z","X","C","V","B","N","M","0","1","2","3","4","5","6","7","8","9"};String code ="";//生成六位随机验证码for (int i = 0; i < 6; i++) {//letter长度的随机六位整数code = code + letters[(int)Math.floor(Math.random()*letters.length)];}return code;}
}

public class htmlText {//  返回页面Html携带的6位随机码public static String html(String code) {String html = "Email地址验证<br/>"+"这封邮件由【我】发送。<br/>"+"你收到这封邮件是【我】进行新用户注册使用这个地址。<br/>"+"请将下面的验证码输入到提示框即可：<h3 style='color:red;'>" + code + "</h3><br/>";return html;}}

账号用来记录日常学习到的代码知识，本篇文章也是在CSDN上跟另一位作者的文章学习而来，下面附上原地址，感谢！

–> 代码原文出处
–> 关于序列化ID
–> 关于邮箱授权码和服务地址的获取