准备工作-下载最新版本的JMail
https://java.net/projects/javamail/pages/Home#Download_JavaMail_1.5.2_Release
http://www.oracle.com/technetwork/java/javase/downloads/index-135046.html
在android上发送邮件方式:
第一种:借助GMail APP客户端,缺点是必须使用GMail帐号,有点是比较方便
不需要写很多代码,但是不是很灵活。
第二种:基于JMail实现,可以很灵活的自己设置各种属性,不需要GMail帐号
在第二种方式的实现之前,看一下JMail对EMail结构的划分:
基于SMTP协议发送EMail,所以客户端必须要知道SMTP的主机
腾讯邮件的SMTP主机为:stmp.qq.com端口为465基于SSL协议
最后我做了一个简单的封装,把发送文本加图像附件的功能做出了
一个单独的Class,只要调用一下即可完成:
package com.gloomyfish.jmail.demo; import java.util.Date; import java.util.Properties; import javax.activation.DataHandler; import javax.activation.DataSource; import javax.activation.FileDataSource; import javax.mail.Address; import javax.mail.Message; 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; public class EMailSender { private String host; private String port; private String userName; private String password; private String[] images; public String[] getImagePath() { return images; } public void setImagePath(String[] imagePath) { this.images = imagePath; } public EMailSender(String host, String port, String userName, String password) { this.host = host; this.port = port; this.userName = userName; this.password = password; } public void sendEmail(String subject, String recepits, String sender, String content) { Properties props = new Properties(); props.put("mail.smtp.host", host); //设置smtp的服务器地址 // props.put("mail.smtp.starttls.enable", "true"); // props.put("mail.smtp.port", port); // 设置端口 // props.put("mail.smtp.auth", "true"); //设置smtp服务器要身份验证。 props.put("mail.smtp.socketFactory.port", port); props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory"); props.put("mail.smtp.auth", "true"); props.put("mail.smtp.port", port); // 返回授权Base64编码 PopupAuthenticator auth = new PopupAuthenticator(userName, password); // 获取会话对象 Session session = Session.getInstance(props, auth); // 设置为DEBUG模式 session.setDebug(true); // 邮件内容对象组装 MimeMessage message = new MimeMessage(session); try { Address addressFrom = new InternetAddress(sender, "Jia Zhi Gang"); Address addressTo = new InternetAddress(recepits, "My QQ E-Mail"); message.setSubject(subject); message.setSentDate(new Date()); message.setFrom(addressFrom); message.addRecipient(Message.RecipientType.TO,addressTo); // 邮件文本/HTML内容 Multipart multipart = new MimeMultipart(); MimeBodyPart messageBodyPart = new MimeBodyPart(); messageBodyPart.setContent(content, "text/html"); multipart.addBodyPart(messageBodyPart); // 添加邮件附件 if (images != null && images.length > 0) { for (String filePath : images) { MimeBodyPart attachPart = new MimeBodyPart(); DataSource source = new FileDataSource(filePath); attachPart.setDataHandler(new DataHandler(source)); attachPart.setFileName(filePath); multipart.addBodyPart(attachPart); } } // 保存邮件内容 message.setContent(multipart); // 获取SMTP协议客户端对象,连接到指定SMPT服务器 Transport transport = session.getTransport("smtp"); transport.connect(host, Integer.parseInt(port), userName, password); System.out.println("connet it success!!!!"); // 发送邮件到SMTP服务器 Thread.currentThread().setContextClassLoader( getClass().getClassLoader() ); Transport.send(message); System.out.println("send it success!!!!"); // 关闭连接 transport.close(); } catch(Exception e) { e.printStackTrace(); } } public String getHost() { return host; } public void setHost(String host) { this.host = host; } public String getPort() { return port; } public void setPort(String port) { this.port = port; } 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; } }
用户授权类:
package com.gloomyfish.jmail.demo; import javax.mail.Authenticator; import javax.mail.PasswordAuthentication; class PopupAuthenticator extends Authenticator { private String userName; private String password; public PopupAuthenticator(String userName, String password) { this.userName = userName; this.password = password; } public PasswordAuthentication getPasswordAuthentication() { return new PasswordAuthentication(userName, password); } }
1.在android上发送邮件必须自己导入三个相关的JAVA文件
上述JAR文件的下载地址已经在文章开始处给出!