第一次使用java mail 写发邮件的程序，我是使用maven来构建依赖的
这里不描述怎么使用java mail发邮件，主要描述如何使用exchange .由于公司邮箱是用的是exchange ，我百度好久也没有合适的说明使用，绕了好多弯路，故在此记录，以便他人少走弯路。
我在一篇文章中发现exchange邮箱需要加域，一般都是domain\username,但是使用后发现会报“AuthenticationFailedException: 535 5.7.3 Authentication unsuccessful”用户名密码错误，找了好久没有办法解决，但是从本质上想，想有没有“域”的参数，找来找去找到的相应的api。
http://www.yiibai.com/javamail_api/javamail_api_smtp_servers.html
需要添加mail.smtp.auth.ntlm.domain参数，
props.setProperty("mail.smtp.auth.ntlm.domain", domain);果然一试就成功了。
<dependency>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
<version>1.5.0-b01</version>
</dependency>import java.util.Date;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Properties;
import java.util.Vector;
import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.Address;
import javax.mail.AuthenticationFailedException;
import javax.mail.Message;
import javax.mail.MessagingException;
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;
/**
*
* @author laughing
* @from http://www.yiibai.com/javamail_api/javamail_api_smtp_servers.html
*
*/
public class MailTool {
// 定义发件人、收件人、SMTP服务器、用户名、密码、主题、内容等
private String displayName;
private String to;
private String from;
private String smtpServer;
private String username;
private String password;
private String subject;
private String content;
private boolean isExchange = false;
private String domain ;
private boolean ifAuth; // 服务器是否要身份认证
private String filename = "";
private Vector<String> file = new Vector<String>(); // 用于保存发送附件的文件名的集合
/**
* 设置SMTP服务器地址
*/
public void setSmtpServer(String smtpServer) {
this.smtpServer = smtpServer;
}
/**
* 设置发件人的地址
*/
public void setFrom(String from) {
this.from = from;
}
/**
* 设置显示的名称
*/
public void setDisplayName(String displayName) {
this.displayName = displayName;
}
/**
* 设置服务器是否需要身份认证
*/
public void setIfAuth(boolean ifAuth) {
this.ifAuth = ifAuth;
}
/**
* 设置E-mail用户名
*/
public void setUserName(String username) {
this.username = username;
}
/**
* 设置E-mail密码
*/
public void setPassword(String password) {
this.password = password;
}
/**
* 设置接收者
*/
public void setTo(String to) {
this.to = to;
}
/**
* 设置主题
*/
public void setSubject(String subject) {
this.subject = subject;
}
/**
* 设置主体内容
*/
public void setContent(String content) {
this.content = content;
}
public boolean isExchange() {
return isExchange;
}
public void setExchange(boolean isExchange) {
this.isExchange = isExchange;
}
// 域设置
public String getDomain() {
return domain;
}
public void setDomain(String domain) {
this.domain = domain;
}
/**
* 该方法用于收集附件名
*/
public void addAttachfile(String fname) {
file.addElement(fname);
}
public MailTool() {
}
/**
* 初始化SMTP服务器地址、发送者E-mail地址、接收者、主题、内容
*/
public MailTool(String smtpServer, String from, String displayName, String to,
String subject, String content ,boolean isExchange, String domain) {
this.smtpServer = smtpServer;
this.from = from;
this.displayName = displayName;
this.ifAuth = false;
this.to = to;
this.subject = subject;
this.content = content;
this.isExchange = isExchange;
this.domain = domain;
}
/**
* 发送邮件
*/
public HashMap<String, String> send() {
HashMap<String, String> map = new HashMap<String, String>();
map.put("state", "success");
String message = "邮件发送成功！";
Session session = null;
Properties props = System.getProperties();
props.put("mail.smtp.host", smtpServer);
if(isExchange){
if(domain == null || domain.equals("")){
throw new RuntimeException("domain is null");
}
props.setProperty("mail.smtp.auth.ntlm.domain", domain);
}
if (ifAuth) { // 服务器需要身份认证
props.put("mail.smtp.auth", "true");
MailAuthenticator smtpAuth = new MailAuthenticator(username, password);
session = Session.getDefaultInstance(props, smtpAuth);
} else {
props.put("mail.smtp.auth", "false");
session = Session.getDefaultInstance(props, null);
}
session.setDebug(true);
Transport trans = null;
try {
Message msg = new MimeMessage(session);
try {
Address from_address = new InternetAddress(from, displayName);
msg.setFrom(from_address);
} catch (java.io.UnsupportedEncodingException e) {
e.printStackTrace();
}
InternetAddress[] address = { new InternetAddress(to) };
msg.setRecipients(Message.RecipientType.TO, address);
msg.setSubject(subject);
Multipart mp = new MimeMultipart();
MimeBodyPart mbp = new MimeBodyPart();
mbp.setContent(content.toString(), "text/html;charset=gb2312");
mp.addBodyPart(mbp);
if (!file.isEmpty()) {// 有附件
Enumeration<String> efile = file.elements();
while (efile.hasMoreElements()) {
mbp = new MimeBodyPart();
filename = efile.nextElement().toString(); // 选择出每一个附件名
FileDataSource fds = new FileDataSource(filename); // 得到数据源
mbp.setDataHandler(new DataHandler(fds)); // 得到附件本身并至入BodyPart
mbp.setFileName(fds.getName()); // 得到文件名同样至入BodyPart
mp.addBodyPart(mbp);
}
file.removeAllElements();
}
msg.setContent(mp); // Multipart加入到信件
msg.setSentDate(new Date()); // 设置信件头的发送日期
// 发送信件
msg.saveChanges();
trans = session.getTransport("smtp");
trans.connect(smtpServer, username, password);
trans.sendMessage(msg, msg.getAllRecipients());
trans.close();
} catch (AuthenticationFailedException e) {
map.put("state", "failed");
message = "邮件发送失败！错误原因：\n" + "身份验证错误!";
e.printStackTrace();
} catch (MessagingException e) {
message = "邮件发送失败！错误原因：\n" + e.getMessage();
map.put("state", "failed");
e.printStackTrace();
Exception ex = null;
if ((ex = e.getNextException()) != null) {
System.out.println(ex.toString());
ex.printStackTrace();
}
}
// System.out.println("\n提示信息:"+message);
map.put("message", message);
return map;
}
public static void main(String[] args) {
String smtpServer = "exchange.be***.com.cn";
String from = "*******@be***.com.cn";
String userName = "*******";
String password = "*******";
String to = "*******@qq.com";
String subject = "你好";
String content = "你好啊";
MailTool mail = new MailTool(smtpServer, from, "BES**YDJD", userName, password,
to, subject, content);
mail.send();
}
}
package tool.mail;
import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;
/**
*
* 服务器邮箱登录验证
*
*/
public class MailAuthenticator extends Authenticator {
/**
*
* 用户名（登录邮箱）
*/
private String username;
/**
* 密码
*/
private String password;
/**
*
* 初始化邮箱和密码
*
* @param username
* 邮箱
*
* @param password
* 密码
*/
public MailAuthenticator(String username, String password) {
this.username = username;
this.password = password;
}
String getPassword() {
return password;
}
@Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}
String getUsername() {
return username;
}
public void setPassword(String password) {
this.password = password;
}
public void setUsername(String username) {
this.username = username;
}
}
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原文链接：java mail 使用：exchange邮箱，转载请注明来源！