我要评论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。
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