java邮件发送的实现
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2024-03-12 23:48:08
邮件是在日常生活中,这篇文章主要介绍了java实现基于smtp发送邮件的方法,实例分析了java基于smtp服务发送邮件的相关技巧,具有一定参考借鉴价值,需要的朋友可以参考...
邮件是在日常生活中,这篇文章主要介绍了java实现基于smtp发送邮件的方法,实例分析了java基于smtp服务发送邮件的相关技巧,具有一定参考借鉴价值,需要的朋友可以参考下.
1.写一个 mailsendproper 类封装需要的属性
import java.util.properties; public class mailsendproper { private string host ; //发送邮件服务器的ip private string port ; //发送邮件服务器的端口号 private string sendaddress ; //邮件发送者的地址 private string receiveaddress ; //邮件接受者的地址 private string username ; //登录发送邮箱的用户名 private string password ; //登录发送邮箱的密码 private boolean isvalidate = true ; //是否需要身份验证 private string subject ; //邮件标题 private string content ; //邮件内容 public string getsubject() { return subject; } public void setsubject(string subject) { this.subject = subject; } public string getcontent() { return content; } public void setcontent(string content) { this.content = content; } public string gethost() { return host; } public void sethost(string host) { host = host; } public string getport() { return port; } public void setport(string port) { port = port; } public string getsendaddress() { return sendaddress; } public void setsendaddress(string sendaddress) { sendaddress = sendaddress; } public string getreceiveaddress() { return receiveaddress; } public void setreceiveaddress(string receiveaddress) { receiveaddress = receiveaddress; } public string getusername() { return username; } public void setusername(string username) { this.username = username; } public string getpassword() { return password; } public void setpassword(string password) { this.password = password; } public boolean isisvalidate() { return isvalidate; } public void setisvalidate(boolean isvalidate) { this.isvalidate = isvalidate; } public properties getproperties(){ properties properties = new properties() ; properties.put("mail.smtp.host", this.host) ; properties.put("mail.smtp.port", this.port) ; properties.put("mail.smtp.auth", isvalidate?"true":"false") ; return properties ; } }
2、写一个 emailmessage 封装 发送信息
public class emailmessage { private string title ; private string context ; private string toemail ; public emailmessage() { super(); } public emailmessage(string title, string context, string toemail) { super(); this.title = title; this.context = context; this.toemail = toemail; } public string gettitle() { return title; } public void settitle(string title) { this.title = title; } public string getcontext() { return context; } public void setcontext(string context) { this.context = context; } public string gettoemail() { return toemail; } public void settoemail(string toemail) { this.toemail = toemail; } }
3、写一个 mailattorney 邮箱密码验证器 类
import javax.mail.authenticator; import javax.mail.passwordauthentication; public class mailattorney extends authenticator { private string username ; private string password ; public mailattorney(string username,string password) { this.username = username ; this.password = password ; } //覆盖父类方法,获取密码认证器 @override protected passwordauthentication getpasswordauthentication() { return new passwordauthentication(username,password) ; } }
4 、 写一个 mailsend 邮件工具类
import java.util.date; import javax.mail.address; import javax.mail.message; import javax.mail.session; import javax.mail.transport; import javax.mail.internet.internetaddress; import javax.mail.internet.mimemessage; import com.vtbbs.entity.emailmessage; public class mailsend { public static boolean mailtest(mailsendproper mailsender){ mailattorney attorney = null ; if(mailsender.isisvalidate()){//判断是否需要身份认证 attorney = new mailattorney(mailsender.getusername(),mailsender.getpassword()) ; } //根据邮箱会话属性和密码验证器构造一个发送邮箱的seesion session session = session.getinstance(mailsender.getproperties(),attorney) ; //根据session创建一个邮件消息 message mailmessage = new mimemessage(session) ; try { //创建邮件发送者的地址 address from = new internetaddress(mailsender.getsendaddress()) ; //设置邮箱消息的发送者 mailmessage.setfrom(from); //创建邮件接收这的地址,并设置到邮件消息中 address to = new internetaddress(mailsender.getreceiveaddress()) ; mailmessage.setrecipient(message.recipienttype.to, to); mailmessage.setsubject(mailsender.getsubject()); //设置邮件标题 mailmessage.setsentdate(new date()); //设置发送邮件时间 mailmessage.settext(mailsender.getcontent()); //设置邮件内容 transport.send(mailmessage); return true ; } catch (exception e) { e.printstacktrace(); return false ; } } public static boolean sendemail(emailmessage message){ mailsendproper mail = new mailsendproper() ; mail.sethost("smtp.126.com"); //smtp简单的邮件传输协议,默认端口号是25, mail.setport("25"); mail.setisvalidate(true); //需呀身份验证 mail.setusername(""); //设置登录用户名 mail.setpassword(""); //设置发送者的密码 mail.setsendaddress(""); //设置发送这的地址 发送者地址和登录用户名是同一个 mail.setreceiveaddress(message.gettoemail()); //设置接收者的地址 mail.setsubject(message.gettitle()); //设置邮箱标题 mail.setcontent(message.getcontext()); //设置邮箱的内容 return mailtest(mail) ; } }
注意:使用的邮箱必须开启pop3/smtp服务 才能发送成功,不同的邮箱,邮箱的传输协议不一样如:
qq邮箱:smtp传输协议是 smtp.qq.com 端口 25
pop3传输协议是 pop3.qq.com 端口 110
5、使用方法测试
public static void main(string[] args) { emailmessage message = new emailmessage() ; string code = string.valueof(math.random()).substring(3, 9) ; //生成验证码 message.settitle("邮箱验证"); //邮件标题 message.setcontext("尊敬的用户你好,你的验证码为"+code+"。"); //邮件内容 message.settoemail("940202884@qq.com"); //要发送给谁 system.out.println(mailsend.sendemail(message)?"发送成功":"发送失败") ; }
希望本文所述对大家学习java程序设计有所帮助。