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JAVA发送邮件最全示例

2018-03-29 12:09 369 查看
发送邮件是我们在程序开发中很常见的功能,比如注册通知、找回密码等,在网上也有很多关于JAVA发送邮件的示例,但多数都是只介绍了其中的一部分,今天为大家提供一些JAVA发送各种形式邮件的示例,供大家学习参考。

JAVA Mail

JAVA Mail是很常用的用于发送邮件的包,我们可以从这里获取,或者在maven中添加如下配置:

<dependency>
<groupId>com.sun.mail</groupId>
<artifactId>javax.mail</artifactId>
<version>1.5.5</version>
</dependency>


如果使用junit测试还需要添加:

<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.8.2</version>
</dependency>


示例代码如下:

package com.gujin.mail;

import java.io.File;
import java.util.Date;
import java.util.Properties;

import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.mail.Authenticator;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.Multipart;
import javax.mail.PasswordAuthentication;
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 MailSenderTest
{
private String host = "smtp.126.com";
private String port = "25";
private String userName = "";
private String password = "";
private String to = "";

/**
* 发送文本邮件
*
* @throws Exception
*/
public void sendTextMail() throws Exception
{
Properties pro = System.getProperties();
pro.put("mail.smtp.host", host);
pro.put("mail.smtp.port", port);
pro.put("mail.smtp.auth", "true");

// 根据邮件会话属性和密码验证器构造一个发送邮件的session
Session sendMailSession = Session.getDefaultInstance(pro,
new Authenticator()
{
@Override
protected PasswordAuthentication getPasswordAuthentication()
{
return new PasswordAuthentication(userName, password);
}
});
// 根据session创建一个邮件消息
Message mailMessage = new MimeMessage(sendMailSession);
// 设置邮件消息的发送者
mailMessage.setFrom(new InternetAddress(userName));
// 创建邮件的接收者地址,并设置到邮件消息中
mailMessage.setRecipient(Message.RecipientType.TO,
new InternetAddress(to));
// 设置邮件消息的主题
mailMessage.setSubject("Test Email");
// 设置邮件消息发送的时间
mailMessage.setSentDate(new Date());
// 设置邮件消息的主要内容
mailMessage.setText("this is a test Text mail");
// 发送邮件
Transport.send(mailMessage);
}

/**
* 发送Html邮件
*
* @throws Exception
*/
public void sendHtmlMail() throws Exception
{
Properties pro = System.getProperties();
pro.put("mail.smtp.host", host);
pro.put("mail.smtp.port", port);
pro.put("mail.smtp.auth", "true");

// 根据邮件会话属性和密码验证器构造一个发送邮件的session
Session sendMailSession = Session.getDefaultInstance(pro,
new Authenticator()
{
@Override
protected PasswordAuthentication getPasswordAuthentication()
{
return new PasswordAuthentication(userName, password);
}
});
// 根据session创建一个邮件消息
Message mailMessage = new MimeMessage(sendMailSession);
// 设置邮件消息的发送者
mailMessage.setFrom(new InternetAddress(userName));
// 创建邮件的接收者地址,并设置到邮件消息中
mailMessage.setRecipient(Message.RecipientType.TO,
new InternetAddress(to));
// 设置邮件消息的主题
mailMessage.setSubject("Test Email");
// 设置邮件消息发送的时间
mailMessage.setSentDate(new Date());

// MiniMultipart类是一个容器类,包含MimeBodyPart类型的对象
Multipart mainPart = new MimeMultipart();
// 创建一个包含HTML内容的MimeBodyPart
BodyPart html = new MimeBodyPart();
// 设置HTML内容
html.setContent(
"<html><body><img src='http://avatar.csdn.net/A/C/A/1_jianggujin.jpg'/><div>this is a HTML email.</div></body></html>",
"text/html; charset=utf-8");
mainPart.addBodyPart(html);
// 将MiniMultipart对象设置为邮件内容
mailMessage.setContent(mainPart);
// 发送邮件
Transport.send(mailMessage);
}

/**
* 发送内嵌图片邮件
*
* @throws Exception
*/
public void sendImageMail() throws Exception
{
Properties pro = System.getProperties();
pro.put("mail.smtp.host", host);
pro.put("mail.smtp.port", port);
pro.put("mail.smtp.auth", "true");

// 根据邮件会话属性和密码验证器构造一个发送邮件的session
Session sendMailSession = Session.getDefaultInstance(pro,
new Authenticator()
{
@Override
protected PasswordAuthentication getPasswordAuthentication()
{
return new PasswordAuthentication(userName, password);
}
});
// 根据session创建一个邮件消息
Message mailMessage = new MimeMessage(sendMailSession);
// 设置邮件消息的发送者
mailMessage.setFrom(new InternetAddress(userName));
// 创建邮件的接收者地址,并设置到邮件消息中
mailMessage.setRecipient(Message.RecipientType.TO,
new InternetAddress(to));
// 设置邮件消息的主题
mailMessage.setSubject("Test Email");
// 设置邮件消息发送的时间
mailMessage.setSentDate(new Date());

MimeMultipart multipart = new MimeMultipart("related");

BodyPart messageBodyPart = new MimeBodyPart();
String htmlText = "<html><body><img src='cid:image'/><div>this is a HTML email.</div></body></html>";
messageBodyPart.setContent(htmlText, "text/html; charset=utf-8");
multipart.addBodyPart(messageBodyPart);

MimeBodyPart imageBodyPart = new MimeBodyPart();
DataSource fds = new FileDataSource("1_jianggujin.jpg");
imageBodyPart.setDataHandler(new DataHandler(fds));
imageBodyPart.setContentID("image");
multipart.addBodyPart(imageBodyPart);

mailMessage.setContent(multipart);
// 发送邮件
Transport.send(mailMessage);
}

/**
* 发送附件邮件
*
* @throws Exception
*/
public void sendAttachmentMail() throws Exception
{
Properties pro = System.getProperties();
pro.put("mail.smtp.host", host);
pro.put("mail.smtp.port", port);
pro.put("mail.smtp.auth", "true");

// 根据邮件会话属性和密码验证器构造一个发送邮件的session
Session sendMailSession = Session.getDefaultInstance(pro,
new Authenticator()
{
@Override
protected PasswordAuthentication getPasswordAuthentication()
{
return new PasswordAuthentication(userName, password);
}
});
// 根据session创建一个邮件消息
Message mailMessage = new MimeMessage(sendMailSession);
// 设置邮件消息的发送者
mailMessage.setFrom(new InternetAddress(userName));
// 创建邮件的接收者地址,并设置到邮件消息中
mailMessage.setRecipient(Message.RecipientType.TO,
new InternetAddress(to));
// 设置邮件消息的主题
mailMessage.setSubject("Test Email");
// 设置邮件消息发送的时间
mailMessage.setSentDate(new Date());

MimeMultipart multipart = new MimeMultipart("mixed");

BodyPart messageBodyPart = new MimeBodyPart();
String htmlText = "<html><body><div>this is a Attachment email.this email has a attachment!</div></body></html>";
messageBodyPart.setContent(htmlText, "text/html; charset=utf-8");
multipart.addBodyPart(messageBodyPart);

MimeBodyPart imageBodyPart = new MimeBodyPart();
File imageFile = new File("1_jianggujin.jpg");
DataSource fds = new FileDataSource(imageFile);
imageBodyPart.setDataHandler(new DataHandler(fds));
imageBodyPart.setFileName(MimeUtility.encodeWord(imageFile.getName()));
multipart.addBodyPart(imageBodyPart);

mailMessage.setContent(multipart);
// 发送邮件
Transport.send(mailMessage);
}

/**
* 发送内嵌图片和附件邮件
*
* @throws Exception
*/
public void sendImageAndAttachmentMail() throws Exception
{
Properties pro = System.getProperties();
pro.put("mail.smtp.host", host);
pro.put("mail.smtp.port", port);
pro.put("mail.smtp.auth", "true");

// 根据邮件会话属性和密码验证器构造一个发送邮件的session
Session sendMailSession = Session.getDefaultInstance(pro,
new Authenticator()
{
@Override
protected PasswordAuthentication getPasswordAuthentication()
{
return new PasswordAuthentication(userName, password);
}
});
// 根据session创建一个邮件消息
Message mailMessage = new MimeMessage(sendMailSession);
// 设置邮件消息的发送者
mailMessage.setFrom(new InternetAddress(userName));
// 创建邮件的接收者地址,并设置到邮件消息中
mailMessage.setRecipient(Message.RecipientType.TO,
new InternetAddress(to));
// 设置邮件消息的主题
mailMessage.setSubject("Test Email");
// 设置邮件消息发送的时间
mailMessage.setSentDate(new Date());

// 正文
MimeBodyPart text = new MimeBodyPart();
text.setContent("我的头像:<img src='cid:headImg'>",
"text/html;charset=UTF-8");

// 正文图片
MimeBodyPart image = new MimeBodyPart();
image.setDataHandler(
new DataHandler(new FileDataSource("1_jianggujin.jpg")));
image.setContentID("headImg");

// 附件
MimeBodyPart attach = new MimeBodyPart();
DataHandler dh = new DataHandler(new FileDataSource("1_jianggujin.jpg"));
attach.setDataHandler(dh);
attach.setFileName(MimeUtility.encodeWord(dh.getName()));

// 描述关系:正文和图片
MimeMultipart mp1 = new MimeMultipart();
mp1.addBodyPart(text);
mp1.addBodyPart(image);
mp1.setSubType("related");

// 正文
MimeBodyPart content = new MimeBodyPart();
content.setContent(mp1);

MimeMultipart multipart = new MimeMultipart("mixed");
multipart.addBodyPart(content);
multipart.addBodyPart(attach);

mailMessage.setContent(multipart);
// 发送邮件
Transport.send(mailMessage);
}
}


commons-email

使用JAVA Mail我们可以完成邮件的发送,但是我们可以发现实现过程略显复杂,比较繁琐,所以我们可以借助commons-email简化发送邮件的过程,commons-email可以从这里下载,或在maven中添加如下配置:

<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-email</artifactId>
<version>1.4</version>
</dependency>


示例代码:

package com.gujin.mail;

import java.io.File;
import java.util.Date;

import org.apache.commons.mail.EmailAttachment;
import org.apache.commons.mail.HtmlEmail;
import org.apache.commons.mail.MultiPartEmail;
import org.apache.commons.mail.SimpleEmail;

public class CommonsEmailTest
{
private String host = "smtp.126.com";
private int port = 25;
private String userName = "";
private String password = "";
private String to = "";

/**
* 发送文本邮件
*
* @throws Exception
*/
public void sendTextMail() throws Exception
{
SimpleEmail mail = new SimpleEmail();
// 设置邮箱服务器信息
mail.setSmtpPort(port);
mail.setHostName(host);
// 设置密码验证器
mail.setAuthentication(userName, password);
// 设置邮件发送者
mail.setFrom(userName);
// 设置邮件接收者
mail.addTo(to);
// 设置邮件编码
mail.setCharset("UTF-8");
// 设置邮件主题
mail.setSubject("Test Email");
// 设置邮件内容
mail.setMsg("this is a test Text mail");
// 设置邮件发送时间
mail.setSentDate(new Date());
// 发送邮件
mail.send();
}

/**
* 发送Html邮件
*
* @throws Exception
*/
public void sendHtmlMail() throws Exception
{
HtmlEmail mail = new HtmlEmail();
// 设置邮箱服务器信息
mail.setSmtpPort(port);
mail.setHostName(host);
// 设置密码验证器
mail.setAuthentication(userName, password);
// 设置邮件发送者
mail.setFrom(userName);
// 设置邮件接收者
mail.addTo(to);
// 设置邮件编码
mail.setCharset("UTF-8");
// 设置邮件主题
mail.setSubject("Test Email");
// 设置邮件内容
mail.setHtmlMsg(
"<html><body><img src='http://avatar.csdn.net/A/C/A/1_jianggujin.jpg'/><div>this is a HTML email.</div></body></html>");
// 设置邮件发送时间
mail.setSentDate(new Date());
// 发送邮件
mail.send();
}

/**
* 发送内嵌图片邮件
*
* @throws Exception
*/
public void sendImageMail() throws Exception
{
HtmlEmail mail = new HtmlEmail();
// 设置邮箱服务器信息
mail.setSmtpPort(port);
mail.setHostName(host);
// 设置密码验证器
mail.setAuthentication(userName, password);
// 设置邮件发送者
mail.setFrom(userName);
// 设置邮件接收者
mail.addTo(to);
// 设置邮件编码
mail.setCharset("UTF-8");
// 设置邮件主题
mail.setSubject("Test Email");
mail.embed(new File("1_jianggujin.jpg"), "image");
// 设置邮件内容
String htmlText = "<html><body><img src='cid:image'/><div>this is a HTML email.</div></body></html>";
mail.setHtmlMsg(htmlText);
// 设置邮件发送时间
mail.setSentDate(new Date());
// 发送邮件
mail.send();
}

/**
* 发送附件邮件
*
* @throws Exception
*/
public void sendAttachmentMail() throws Exception
{
MultiPartEmail mail = new MultiPartEmail();
// 设置邮箱服务器信息
mail.setSmtpPort(port);
mail.setHostName(host);
// 设置密码验证器
mail.setAuthentication(userName, password);
// 设置邮件发送者
mail.setFrom(userName);
// 设置邮件接收者
mail.addTo(to);
// 设置邮件编码
mail.setCharset("UTF-8");
// 设置邮件主题
mail.setSubject("Test Email");

mail.setMsg("this is a Attachment email.this email has a attachment!");
// 创建附件
EmailAttachment attachment = new EmailAttachment();
attachment.setPath("1_jianggujin.jpg");
attachment.setDisposition(EmailAttachment.ATTACHMENT);
attachment.setName("1_jianggujin.jpg");
mail.attach(attachment);

// 设置邮件发送时间
mail.setSentDate(new Date());
// 发送邮件
mail.send();
}

/**
* 发送内嵌图片和附件邮件
*
* @throws Exception
*/
public void sendImageAndAttachmentMail() throws Exception
{
HtmlEmail mail = new HtmlEmail();
// 设置邮箱服务器信息
mail.setSmtpPort(port);
mail.setHostName(host);
// 设置密码验证器
mail.setAuthentication(userName, password);
// 设置邮件发送者
mail.setFrom(userName);
// 设置邮件接收者
mail.addTo(to);
// 设置邮件编码
mail.setCharset("UTF-8");
// 设置邮件主题
mail.setSubject("Test Email");
mail.embed(new File("1_jianggujin.jpg"), "image");
// 设置邮件内容
String htmlText = "<html><body><img src='cid:image'/><div>this is a HTML email.</div></body></html>";
mail.setHtmlMsg(htmlText);
// 创建附件
EmailAttachment attachment = new EmailAttachment();
attachment.setPath("1_jianggujin.jpg");
attachment.setDisposition(EmailAttachment.ATTACHMENT);
attachment.setName("1_jianggujin.jpg");
mail.attach(attachment);
// 设置邮件发送时间
mail.setSentDate(new Date());
// 发送邮件
mail.send();
}
}
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