JavaMail实现发送邮件,需要有一个发送邮件的主邮箱,且主邮箱需要开启开启POP3/SMTP协议(一般用qq邮箱,其他邮箱可能会有点问题)
代码如下:直接使用即可
import java.util.Properties;
import javax.mail.Message;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import com.sun.mail.util.MailSSLSocketFactory;
/**
* JavaMail发送邮件: java版本-与web无关
* 前提是QQ邮箱里帐号设置要开启POP3/SMTP协议
*/
public class JavaMail {
public void send(HttpServletRequest request,String receiver) throws Exception {
Properties prop = new Properties();
// 开启debug调试,以便在控制台查看
prop.setProperty("mail.debug", "true");
// 设置邮件服务器主机名
prop.setProperty("mail.host", "smtp.qq.com");
// 发送服务器需要身份验证
prop.setProperty("mail.smtp.auth", "true");
// 发送邮件协议名称
prop.setProperty("mail.transport.protocol", "smtp");
// 开启SSL加密,否则会失败
MailSSLSocketFactory sf = new MailSSLSocketFactory();
sf.setTrustAllHosts(true);
prop.put("mail.smtp.ssl.enable", "true");
prop.put("mail.smtp.ssl.socketFactory", sf);
// 创建session
Session session = Session.getInstance(prop);
// 通过session得到transport对象
Transport ts = session.getTransport();
// 连接邮件服务器:邮箱类型,帐号,POP3/SMTP协议授权码 163使用:smtp.163.com
ts.connect("smtp.qq.com", "正确的qq号", "tqejtlkfdgnjcaec");//授权码需要自己弄
// 创建邮件
Message message = createSimpleMail(request,session,receiver);
// 发送邮件
ts.sendMessage(message, message.getAllRecipients());
ts.close();
//System.out.println("code:"+request.getSession().getAttribute("code"));
}
/**
* @Method: createSimpleMail
* @Description: 创建一封只包含文本的邮件
*/
public static MimeMessage createSimpleMail(HttpServletRequest request,Session session,String receiver) throws Exception {
// 获取6为随机验证码
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 stringBuilder ="";
for (int i = 0; i < 6; i++) {
stringBuilder = stringBuilder + letters[(int)Math.floor(Math.random()*letters.length)];
}
HttpSession httpSession = request.getSession(true);
httpSession.setAttribute("code",stringBuilder);
//设置超时,另外的方法,没贴出来
//TimeOut o = new TimeOut();
//o.SessionOut(request,"code",60);
// 创建邮件对象
MimeMessage message = new MimeMessage(session);
// 指明邮件的发件人(主邮箱)
message.setFrom(new InternetAddress("****@qq.com"));
// 指明邮件的收件人,发件人和收件人如果是一样的,那就是自己给自己发
message.setRecipient(Message.RecipientType.TO, new InternetAddress(receiver));
// 邮件的标题
message.setSubject("【**主题】");
// 邮件的文本内容
message.setContent("欢迎您使用【***】,验证码为(一分钟有效):"+stringBuilder+",请勿回复此邮箱", "text/html;charset=UTF-8");
// 返回创建好的邮件对象
return message;
}
// public static void main(String[] args) {
// JavaMail j = new JavaMail();
// try {
// j.send("chen190427@126.com");//需要发送到的邮箱
// } catch (Exception e) {
// e.printStackTrace();
// }
// }
}
发送完后可以设置session保存,然后验证,发送后可以设置时长多久清除session,具体的就不列出来了,发送邮箱的代码可以直接进行单元测试使用。谢谢学习!