java实现验证发送邮箱功能（如何给指定邮箱发送验证信息）

Question

package org.ouyang.servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.Date;
import java.util.Properties;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class SendMailServlet extends HttpServlet {

/**
 * 
 */
private static final long serialVersionUID = 7528837938993171667L;

private ServletConfig config = null;
private static final String CONTENT_TYPE = "text/html";
public void init(ServletConfig config1) throws ServletException {
this.config = config1;
}
final public ServletConfig getServletConfig() {
return config;
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doPost(request,response);
}

public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {

String to_mail=codeToString(request.getParameter("miss"));
String to_title=codeToString(request.getParameter("title"));
String to_content=codeToString(request.getParameter("content"));

Properties props=new Properties();//也可用Properties props = System.getProperties(); //
props.put("mail.smtp.host","smtp.sina.com");//存储发送邮件服务器的信息
props.put("mail.smtp.auth","true");//同时通过验证
Session s=Session.getInstance(props);//根据属性新建一个邮件会话
s.setDebug(true);
//由邮件会话新建一个消息对象
MimeMessage message=new MimeMessage(s);//由邮件会话新建一个消息对象
//设置邮件
InternetAddress from;
try {
from = new InternetAddress("miss");
message.setFrom(from);//设置发件人
InternetAddress to=new InternetAddress(to_mail);
message.setRecipient(Message.RecipientType.TO,to);//设置收件人,并设置其接收类型为TO
message.setSubject(to_title);//设置主题
message.setText(to_content);//设置信件内容
message.setSentDate(new Date());//设置发信时间
//发送邮件
message.saveChanges();//存储邮件信息
Transport transport=s.getTransport("smtp");
//以smtp方式登录邮箱,第一个参数是发送邮件用的邮件服务器SMTP地址,第二个参数为用户名,第三个参数为密码
transport.connect("smtp.sina.com",4,"[e-mail]","#####");
transport.sendMessage(message,message.getAllRecipients());//发送邮件,其中第二个参数是所有已设好的收件人地址
transport.close();
response.setContentType(CONTENT_TYPE);
PrintWriter out = response.getWriter();
out.print("success");
} catch (AddressException e) {
e.printStackTrace();
} catch (MessagingException e) {
e.printStackTrace();
}
}

public String codeToString(String str) {//处理中文字符串的函数
String s=str;
try {
byte tempB[]=s.getBytes("ISO-8859-1");
s=new String(tempB);
return s;
} catch(Exception e) {
return s;
} 
}
}

Answer 1

import com.myweb.mail.vo.AjaxBack;
import com.ykmaiz.mail.MailSupport;

@At("/sendMail")
@Ok("json")
public AjaxBack sendMail(@Param("loginName") String loginName,@Param("newEmail") String email,HttpServletResponse response){
String randString=RandomString.randomString(6);
try{
IAccount account=getByLoginName(loginName);
if(!account.getEmail().equals(email)){
return new AjaxBack(2,"验证码发送失败");
}else{
RandomDes des=new RandomDes();
String randStringase=des.ase(randString);
Cookie cookie = new Cookie("emailyzm",randStringase);
cookie.setMaxAge(120);
response.addCookie(cookie);
String msgTitle="xxxxx";
String msgText="xxxx，您本次的邮箱验证码是："+randString;
MailSupport mailSupport = new MailSupport("smtp.163.com", "[e-mail]", "xxx", true);
mailSupport.send("[e-mail]", email, msgTitle, msgText);
return new AjaxBack(1,"验证码已经发送至您的邮箱，请登录邮箱查收！");
}
}catch(Exception e){
e.printStackTrace();
}
return new AjaxBack(2,"验证码发送失败");
}