邮件权限的开通以及java后台代码

 1、首先对发件人的邮箱开启SMIT服务器以及获取授权码，开启历程参考百度
 2、下载formail,邮箱地址以及授权码进行首次登录，
 3、设置SMIT服务器账号和密码

 

服务器是自动生成，如果没有生成手动输入

 
设置好之后保存，之后就开启了服务器
4、后台代码，可复制直接用
package com.jf.test;


import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Properties;

import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.Address;
import javax.mail.BodyPart;
import javax.mail.Multipart;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import javax.mail.internet.MimeUtility;

public class SendMailBySSL {
private final String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";
private String smtpServer; // SMTP服务器地址
private String port; // 端口
private String username; // 登录SMTP服务器的用户名
private String password; // 登录SMTP服务器的密码
private List<String> recipients = new ArrayList<String>(); // 收件人地址集合
private String subject; // 邮件主题
private String content; // 邮件正文
private List<String> attachmentNames = new ArrayList<String>(); // 附件路径信息集合

public SendMailBySSL() {

}

public SendMailBySSL(String smtpServer, String port, String username,
String password, List<String> recipients, String subject,
String content, List<String> attachmentNames) {
this.smtpServer = smtpServer;
this.port = port;
this.username = username;
this.password = password;
this.recipients = recipients;
this.subject = subject;
this.content = content;
this.attachmentNames = attachmentNames;
}

public void setSmtpServer(String smtpServer) {
this.smtpServer = smtpServer;
}

public void setPort(String port) {
this.port = port;
}

public void setUsername(String username) {
this.username = username;
}

public void setPassword(String password) {
this.password = password;
}

public void setRecipients(List<String> recipients) {
this.recipients = recipients;
}

public void setSubject(String subject) {
this.subject = subject;
}

public void setContent(String content) {
this.content = content;
}

public void setAttachmentNames(List<String> attachmentNames) {
this.attachmentNames = attachmentNames;
}

/**
* 进行base64加密，防止中文乱码
* */
public String changeEncode(String str) {
try {
str = MimeUtility.encodeText(new String(str.getBytes(), "UTF-8"),
"UTF-8", "B"); // "B"代表Base64
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
return str;
}

/**
* 正式发邮件
* */
public boolean sendMail() {
Properties properties = new Properties();
properties.put("mail.smtp.host", smtpServer);
properties.put("mail.smtp.auth", "true");
properties.put("mail.smtp.socketFactory.class", SSL_FACTORY); //使用JSSE的SSL socketfactory来取代默认的socketfactory
properties.put("mail.smtp.socketFactory.fallback", "false"); // 只处理SSL的连接,对于非SSL的连接不做处理

properties.put("mail.smtp.port", port);
properties.put("mail.smtp.socketFactory.port", port);

Session session = Session.getInstance(properties);
session.setDebug(true);
MimeMessage message = new MimeMessage(session);

try {
// 发件人
Address address = new InternetAddress(username);
message.setFrom(address);

// 收件人
for (String recipient : recipients) {
System.out.println("收件人：" + recipient);
Address toAddress = new InternetAddress(recipient);
message.setRecipient(MimeMessage.RecipientType.TO, toAddress); // 设置收件人,并设置其接收类型为TO
/**
* TO：代表有健的主要接收者。 CC：代表有健的抄送接收者。 BCC：代表邮件的暗送接收者。
* */
}

// 主题
message.setSubject(changeEncode(subject));

// 时间
message.setSentDate(new Date());

Multipart multipart = new MimeMultipart();
// 添加文本
BodyPart text = new MimeBodyPart();
text.setText(content);
multipart.addBodyPart(text);
// 添加附件
for (String fileName : attachmentNames) {
BodyPart adjunct = new MimeBodyPart();
FileDataSource fileDataSource = new FileDataSource(fileName);
adjunct.setDataHandler(new DataHandler(fileDataSource));
adjunct.setFileName(changeEncode(fileDataSource.getName()));
multipart.addBodyPart(adjunct);
}
// 清空收件人集合，附件集合
recipients.clear();
attachmentNames.clear();

message.setContent(multipart);
message.saveChanges();

} catch (Exception e) {
e.printStackTrace();
return false;
}

try {
Transport transport = session.getTransport("smtp");
transport.connect(smtpServer, username, password);
transport.sendMessage(message, message.getAllRecipients());
transport.close();
} catch (Exception e) {
e.printStackTrace();
return false;
}

return true;
}

public static void main(String[] args) {
List<String> recipients = new ArrayList<String>();
recipients.add("[e-mail]");
// recipients.add("[e-mail]");
String subject = "这封邮件是为了测试SMTP的SSL加密传输";
String content = "这是这封邮件的正文";
List<String> attachmentNames = new ArrayList<String>();
//添加附件

// attachmentNames.add("C://Users//huahua.txt");

//[e-mail]为原发送邮件的邮箱，"itsmvlhlxxlsbfei"为开通发送邮件功能权限的时候生成的授权码

SendMailBySSL sendMailBySSL = new SendMailBySSL("smtp.qq.com", "465",
"[e-mail]", "itsmvlhlxxlsbfei", recipients, subject, content,
attachmentNames);
sendMailBySSL.sendMail();
}

}