javamail

1package com.syj;
2
3import java.io.ByteArrayInputStream;
4import java.io.ByteArrayOutputStream;
5import java.io.FileInputStream;
6import java.io.IOException;
7import java.io.InputStream;
8import java.io.OutputStream;
9import java.util.Arrays;
10import java.util.Date;
11import java.util.Properties;
12
13import javax.activation.DataHandler;
14import javax.activation.DataSource;
15import javax.activation.FileDataSource;
16import javax.mail.Authenticator;
17import javax.mail.BodyPart;
18import javax.mail.Message;
19import javax.mail.Multipart;
20import javax.mail.PasswordAuthentication;
21import javax.mail.Session;
22import javax.mail.Transport;
23import javax.mail.internet.InternetAddress;
24import javax.mail.internet.MimeBodyPart;
25import javax.mail.internet.MimeMessage;
26import javax.mail.internet.MimeMultipart;
27
28
29/**
30 * <p>
31 * Title:用java发送邮件的例子
32 * </p>
33 * 
34 * <p>
35 * Description:发送图片附件并在html中使用该图片
36 * </p>
37 * 
38 * <p>
39 * Copyright: Copyright (c) 2007
40 * </p>
41 * 
42 * @author 孙钰佳 
43 * @blog http://blog.csdn.net/sunyujia/
44 * @main sunyujia@yahoo.cn
45 * @date Jun 10, 2008 12:35:26 AM
46 */
47public class SendMail {
48	private static String username = "xxxx";
49	private static String password = "xxxx";
50	private static String smtpServer = "smtp.163.com";
51	private static String fromMailAddress = "xxxx@163.com";
52	private static String toMailAddress = "sunyujia@yahoo.cn";
53
54	public static void main(String[] args) throws Exception {
55		Properties props = new Properties();
56		props.put("mail.smtp.auth", "true");
57		props.put("mail.smtp.host", smtpServer);
58		// 获得邮件会话对象
59		Session session = Session.getDefaultInstance(props,
60				new SmtpAuthenticator(username, password));
61		/** *************************************************** */
62		// 创建MIME邮件对象
63		MimeMessage mimeMessage = new MimeMessage(session);
64		mimeMessage.setFrom(new InternetAddress(fromMailAddress));// 发件人
65		mimeMessage.setRecipient(Message.RecipientType.TO, new InternetAddress(
66				toMailAddress));// 收件人
67		mimeMessage.setSubject("主题");
68		mimeMessage.setSentDate(new Date());// 发送日期
69		Multipart mp = new MimeMultipart("related");// related意味着可以发送html格式的邮件
70		/** *************************************************** */
71		BodyPart bodyPart = new MimeBodyPart();// 正文
72		bodyPart.setDataHandler(new DataHandler("测<img src=/"cid:IMG1/" />试",
73				"text/html;charset=GBK"));// 网页格式
74		/** *************************************************** */
75		BodyPart attachBodyPart = new MimeBodyPart();// 普通附件
76		FileDataSource fds = new FileDataSource("c:/boot.ini");
77		attachBodyPart.setDataHandler(new DataHandler(fds));
78		attachBodyPart.setFileName("=?GBK?B?"
79				+ new sun.misc.BASE64Encoder().encode(fds.getName().getBytes())
80				+ "?=");// 解决附件名中文乱码
81		mp.addBodyPart(attachBodyPart);
82		/** *************************************************** */
83		MimeBodyPart imgBodyPart = new MimeBodyPart(); // 附件图标
84		byte[] bytes = readFile("C:/button.gif");
85		ByteArrayDataSource fileds = new ByteArrayDataSource(bytes,
86				"application/octet-stream");
87		imgBodyPart.setDataHandler(new DataHandler(fileds));
88		imgBodyPart.setFileName("button.gif");
89		imgBodyPart.setHeader("Content-ID", "<img1></img1>");// 在html中使用该图片方法src="cid:IMG1"
90		mp.addBodyPart(imgBodyPart);
91		/** *************************************************** */
92		mp.addBodyPart(bodyPart);
93		mimeMessage.setContent(mp);// 设置邮件内容对象
94		Transport.send(mimeMessage);// 发送邮件
95
96	}
97
98	/**
99	 * 读取文件
100	 * 
101	 * @param file
102	 *            文件路径
103	 * @return 返回二进制数组
104	 */
105	public static byte[] readFile(String file) {
106		FileInputStream fis = null;
107		ByteArrayOutputStream bos = null;
108		try {
109			fis = new FileInputStream(file);
110			bos = new ByteArrayOutputStream();
111			int bytesRead;
112			byte buffer[] = new byte[1024 * 1024];
113			while ((bytesRead = fis.read(buffer)) != -1) {
114				bos.write(buffer, 0, bytesRead);
115				Arrays.fill(buffer, (byte) 0);
116			}
117		} catch (IOException e1) {
118			e1.printStackTrace();
119		} finally {
120			try {
121				if (bos != null)
122					bos.close();
123			} catch (IOException e) {
124				e.printStackTrace();
125			}
126		}
127		return bos.toByteArray();
128	}
129}
130
131/**
132 * Smtp认证
133 */
134class SmtpAuthenticator extends Authenticator {
135	String username = null;
136	String password = null;
137
138	// SMTP身份验证
139	public SmtpAuthenticator(String username, String password) {
140		this.username = username;
141		this.password = password;
142	}
143
144	public PasswordAuthentication getPasswordAuthentication() {
145		return new PasswordAuthentication(this.username, this.password);
146	}
147
148}
149class ByteArrayDataSource implements DataSource {
150
151	private final String contentType;
152	private final byte[] buf;
153	private final int len;
154
155	public ByteArrayDataSource(byte[] buf, String contentType) {
156		this(buf, buf.length, contentType);
157	}
158
159	public ByteArrayDataSource(byte[] buf, int length, String contentType) {
160		this.buf = buf;
161		this.len = length;
162		this.contentType = contentType;
163	}
164
165	public String getContentType() {
166		if (contentType == null)
167			return "application/octet-stream";
168		return contentType;
169	}
170
171	public InputStream getInputStream() {
172		return new ByteArrayInputStream(buf, 0, len);
173	}
174
175	public String getName() {
176		return null;
177	}
178
179	public OutputStream getOutputStream() {
180		throw new UnsupportedOperationException();
181	}
182}