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Posted on 2005-12-18 00:38 ajie 阅读(2695) 评论(2) 编辑 收藏
1  /** *//**
2 * 该类演示了Java Mail的应用
3 * 版权 本文版权属Java天下
4 * @author ljfan
5 * @version 2.0, Created on 2005/08/10
6 *
7 */
8
9package cn.javatx.util;
10
11import java.io.FileInputStream;
12import java.text.SimpleDateFormat;
13import java.util.Collection;
14import java.util.Collections;
15import java.util.Date;
16import java.util.Properties;
17import java.util.concurrent.ArrayBlockingQueue;
18import java.util.concurrent.ThreadPoolExecutor;
19import java.util.concurrent.TimeUnit;
20
21import javax.mail.Address;
22import javax.mail.Message;
23import javax.mail.MessagingException;
24import javax.mail.Part;
25import javax.mail.SendFailedException;
26import javax.mail.Session;
27import javax.mail.Transport;
28import javax.mail.URLName;
29import javax.mail.internet.AddressException;
30import javax.mail.internet.InternetAddress;
31import javax.mail.internet.MimeBodyPart;
32import javax.mail.internet.MimeMessage;
33import javax.mail.internet.MimeMultipart;
34import javax.mail.internet.MimeUtility;
35
36public class Mail  {
37
38 private String host;
39
40 private int port;
41
42 private String username;
43
44 private String password;
45
46 ThreadPoolExecutor executor = null;
47
48 private static Mail mail = new Mail();
49
50  public static Mail getInstance() {
51 return mail;
52 }
53
54 private Mail() {
55 try {
56 Properties prop = new Properties();
57 FileInputStream fis = new FileInputStream("H:\\Tomcat5\\webapps\\ROOT\\WEB-INF\\classes\\mail.properties");
58 prop.load(fis);
59
60 this.host = prop.getProperty("mail.smtp.host");
61 this.port = Integer.parseInt(prop.getProperty("mail.smtp.port"));
62 this.username = prop.getProperty("mail.smtp.username");
63 this.password = prop.getProperty("mail.smtp.password");
64
65 System.out.println("host:"+host);
66 System.out.println("port:"+port);
67
68 } catch (Exception e) {
69 System.out.println(e.getMessage());
70 }
71
72 executor = new ThreadPoolExecutor(1, Integer.MAX_VALUE, 60,
73 TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(5));
74 }
75
76 private Session session = null;
77
78 /** *//**
79 * Creates a Javamail session.
80 */
81 private synchronized void createSession() {
82 if (host == null) {
83 throw new IllegalArgumentException("Host cannot be null.");
84 }
85
86 Properties mailProps = new Properties();
87 mailProps.setProperty("mail.smtp.host", host);
88 mailProps.setProperty("mail.smtp.port", String.valueOf(port));
89 mailProps.setProperty("mail.smtp.sendpartial", "true");
90 if (username != null) {
91 mailProps.put("mail.smtp.auth", "true");
92 }
93 session = Session.getInstance(mailProps, null);
94 }
95
96 public MimeMessage createMimeMessage() {
97 if (session == null) {
98 createSession();
99 }
100 return new MimeMessage(session);
101 }
102
103 /** *//**
104 * 发送邮件
105 *
106 * @param fromName
107 * 发件人姓名
108 * @param fromEmail
109 * 发件人地址
110 * @param ToEmail
111 * 收件人地址
112 * @param CcEmail
113 * 抄送人地址
114 * @param subject
115 * 邮件主题
116 * @param textBody
117 * 邮件内容
118 * @param htmlBody
119 * 邮件内容(html形式）
120 */
121 public void sendMessage(String fromName, String fromEmail, String ToEmail,
122 String CcEmail, String subject, String textBody, String htmlBody) {
123 try {
124 String encoding = MimeUtility.mimeCharset("gb2312");
125 MimeMessage message = createMimeMessage();
126
127 String sTo[] = ToEmail.split(",");
128 String sCc[] = CcEmail.split(",");
129
130 //收件人地址
131 Address to[] = new Address[sTo.length];
132 for (int i = 0; i < sTo.length; i++) {
133 to[i] = new InternetAddress(sTo[i], "", encoding);
134 }
135
136 //抄送人地址
137 Address cc[] = new Address[sCc.length];
138 for (int i = 0; i < sTo.length; i++) {
139 cc[i] = new InternetAddress(sCc[i], "", encoding);
140 }
141
142 Address from = null;
143
144 if (fromName != null) {
145 from = new InternetAddress(fromEmail, fromName, encoding);
146 } else {
147 from = new InternetAddress(fromEmail, "", encoding);
148 }
149
150 SimpleDateFormat format = new SimpleDateFormat(
151 "EEE, dd MMM yyyy HH:mm:ss Z", java.util.Locale.US);
152
153 message.setHeader("Date", format.format(new Date()));
154 message.setHeader("Content-Transfer-Encoding", "8bit");
155 message.setRecipients(Message.RecipientType.TO, to);
156 if (!(CcEmail.equals("")) || (CcEmail == null)) {
157 message.setRecipients(Message.RecipientType.CC, cc);
158 }
159 message.setFrom(from);
160 message.setSubject(subject, encoding);
161 // Create HTML, plain-text, or combination message
162 if (textBody != null && htmlBody != null) {
163 MimeMultipart content = new MimeMultipart("alternative");
164 // Plain-text
165 MimeBodyPart text = new MimeBodyPart();
166 text.setText(textBody, encoding);
167 text.setDisposition(Part.INLINE);
168 content.addBodyPart(text);
169 // HTML
170 MimeBodyPart html = new MimeBodyPart();
171 html.setContent(htmlBody, "text/html");
172 html.setDisposition(Part.INLINE);
173 content.addBodyPart(html);
174 // Add multipart to message.
175 message.setContent(content);
176 message.setDisposition(Part.INLINE);
177 addToTask(message);
178 } else if (textBody != null) {
179 MimeBodyPart bPart = new MimeBodyPart();
180 bPart.setText(textBody, encoding);
181 bPart.setDisposition(Part.INLINE);
182 MimeMultipart mPart = new MimeMultipart();
183 mPart.addBodyPart(bPart);
184 message.setContent(mPart);
185 message.setDisposition(Part.INLINE);
186 addToTask(message);
187 } else if (htmlBody != null) {
188 MimeBodyPart bPart = new MimeBodyPart();
189 bPart.setContent(htmlBody, "text/html");
190 bPart.setDisposition(Part.INLINE);
191 MimeMultipart mPart = new MimeMultipart();
192 mPart.addBodyPart(bPart);
193 message.setContent(mPart);
194 message.setDisposition(Part.INLINE);
195 addToTask(message);
196 }
197 } catch (Exception e) {
198 System.out.println(e.getMessage());
199 }
200 }
201
202 private void addToTask(MimeMessage message) {
203 if (message != null) {
204 sendMessages(Collections.singletonList(message));
205 } else {
206 System.out.println("Cannot add null email message to queue.");
207 }
208
209 }
210
211 public void sendMessages(Collection<MimeMessage> messages) {
212 if (messages.size() == 0) {
213 return;
214 }
215 executor.execute(new EmailTask(messages));
216 }
217
218 /** *//**
219 * Task to send one or more emails via the SMTP server.
220 */
221 private class EmailTask implements Runnable {
222
223 private Collection<MimeMessage> messages;
224
225 public EmailTask(Collection<MimeMessage> messages) {
226 this.messages = messages;
227 }
228
229 public void run() {
230 try {
231 sendMessages();
232 } catch (MessagingException me) {
233 System.out.println(me.getMessage());
234 }
235 }
236
237 public void sendMessages() throws MessagingException {
238 Transport transport = null;
239 try {
240 URLName url = new URLName("smtp", host, port, "", username,
241 password);
242 transport = new com.sun.mail.smtp.SMTPTransport(session, url);
243 transport.connect(host, port, username, password);
244 //System.out.println(messages.size());
245 for (MimeMessage message : messages) {
246 try {
247 transport.sendMessage(message, message
248 .getRecipients(MimeMessage.RecipientType.TO));
249 } catch (AddressException ae) {
250 System.out.println(ae.getMessage());
251 } catch (SendFailedException sfe) {
252 System.out.println(sfe.getMessage());
253 }
254 }
255 } finally {
256 if (transport != null) {
257 try {
258 transport.close();
259 } catch (MessagingException e) { /**//* ignore */
260 }
261 }
262 }
263 }
264 }
265}
266 Java天下社区 http://www.javatx.cn 欢迎大家上来交流Java技术。
评论
# re: 利用Java Mail API 开发邮件通知服务 回复 更多评论
2007-11-14 11:14 by
H:\\Tomcat5\\webapps\\ROOT\\WEB-INF\\classes\\mail.properties
mail.properties配置文件里 的内容是什么呀？
# re: 利用Java Mail API 开发邮件通知服务 回复 更多评论
2009-03-31 10:19 by
在代码中是不应该出现服务器的路径的
H:\\Tomcat5\\webapps\\ROOT\\WEB-INF\\classes\\mail.properties
这样安全性不好
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