1,讀入圖片的方式：
發現網上講的很多讀取圖片的方式都不對，按下面提供的這個方法來讀取，保證成功。
?1
????private?byte[]?getImageBytes(String?file)?
{
?2
????????byte[]?myData?=?null;
?3????????InputStream?input?=?getClass().getClassLoader().getResourceAsStream(
?4????????????????file);
?5
????????try?{
?6????????????ByteArrayOutputStream?byteArray?=?new?ByteArrayOutputStream();
?7????????????int?ch?=?0;
?8????????????while?((ch?=?input.read())?!=?-1)?{
?9????????????????byteArray.write(ch);
10
????????????}
11????????????//?System.out.println(byteArray.size());
12????????????myData?=?byteArray.toByteArray();
13????????????//?System.out.println(myData.length);
14????????}?catch?(Exception?e)?{
15????????????e.printStackTrace();
16????????}
17????????return?myData;
18
????} 2，發送郵件的“機關”
?1
????????MimeMessage?msg?=?new?MimeMessage(mailSession);
?2????????msg.setFrom(new?InternetAddress(this.getSenderAddress()));
?3????????msg.setSubject(this.getTitle());
?4????????msg.setSentDate(new?Date());
?5????????Address[]?adds?=?InternetAddress.parse(getToAddress());
?6????????msg.addRecipients(javax.mail.Message.RecipientType.TO,?adds);
?7????????//?新建一個MimeMultipart對象用來存放BodyPart對象(事實上可以存放多個)
?8????????MimeMultipart?mm?=?new?MimeMultipart("related");
?9????????//?新建一個存放信件內容的BodyPart對象
10????????BodyPart?mdp?=?new?MimeBodyPart();
11????????//?給BodyPart對象設置內容和格式/編碼方式
12????????mdp.setContent(this.getContent(),?"text/html;charset=utf-8");
13????????//?這句很重要，千萬不要忘了
14????????mm.addBodyPart(mdp);
15
16????????//?－－－－－－－－－圖片處理開始！！！！！！！！！！！！！！！！
17????????mdp?=?new?MimeBodyPart();
18????????byte?bbb[]?=?new?byte[1024?*?10];
19????????this.getClass().getClassLoader().getResourceAsStream("notice.jpg")
20????????????????.read(bbb);
21????????DataHandler?dh?=?new?DataHandler(new?ByteArrayDataSource(this
22????????????????.getImageBytes("notice.jpg"),?"application/octet-stream"));
23????????mdp.setDataHandler(dh);
24????????//?加上這句將作為附件發送,否則將作為信件的文本內容
25????????mdp.setFileName("1.jpg");
26????????mdp.setHeader("content-id",?"<IMG1>");
27????????//?將含有附件的BodyPart加入到MimeMultipart對象中
28????????mm.addBodyPart(mdp);
29????????//?－－－－－－－－－圖片處理結束！！！！！！！！！！！！！！！！
30
31????????//?把mm作為消息對象的內容
32????????msg.setContent(mm); 仔細看代碼中的注釋吧，相信大有幫助。
3，一個實際應用的完整代碼
要求根據一個格式文件和模版，發一封漂亮的郵件，所以需要用到HTML格式來發送郵件。不多說了，看代碼吧!
??1import?java.io.ByteArrayOutputStream;
??2import?java.io.File;
??3import?java.io.FileReader;
??4import?java.io.IOException;
??5import?java.io.InputStream;
??6import?java.util.Date;
??7import?java.util.HashMap;
??8import?java.util.Map;
??9import?java.util.Properties;
?10
?11import?javax.activation.DataHandler;
?12import?javax.mail.Address;
?13import?javax.mail.BodyPart;
?14import?javax.mail.internet.InternetAddress;
?15import?javax.mail.internet.MimeBodyPart;
?16import?javax.mail.internet.MimeMessage;
?17import?javax.mail.internet.MimeMultipart;
?18import?javax.mail.util.ByteArrayDataSource;
?19
?20/**?*//**
?21?*?
?22?*?@author?robin
?23?*?@version?$Revision:?1.4?$
?24?*/
?25public?class?SendMailUtil?{
?26
?27????/**?*//**
?28?????*?Field?mailServerAddress.
?29?????*/
?30????private?String?mailServerAddress;
?31
?32????/**?*//**
?33?????*?Field?user.
?34?????*/
?35????private?String?user;
?36
?37????/**?*//**
?38?????*?Field?password.
?39?????*/
?40????private?String?password;
?41
?42????/**?*//**
?43?????*?Field?toAddress.
?44?????*/
?45????private?String?toAddress;
?46
?47????/**?*//**
?48?????*?Field?ccAddress.
?49?????*/
?50????private?String?ccAddress;
?51
?52????/**?*//**
?53?????*?Field?title.
?54?????*/
?55????private?String?title;
?56
?57????/**?*//**
?58?????*?Field?content.
?59?????*/
?60????private?String?content;
?61
?62????/**?*//**
?63?????*?Field?isHtml.
?64?????*/
?65????private?boolean?isHtml?=?true;
?66
?67????/**?*//**
?68?????*?Field?attachmentFiles.
?69?????*/
?70????private?Map?attachmentFiles?=?null;
?71
?72????/**?*//**
?73?????*?Field?senereAddress.
?74?????*/
?75????private?String?senderAddress;
?76
?77????private?byte[]?getImageBytes(String?file)?{
?78????????byte[]?myData?=?null;
?79????????InputStream?input?=?getClass().getClassLoader().getResourceAsStream(
?80????????????????file);
?81????????try?{
?82????????????ByteArrayOutputStream?byteArray?=?new?ByteArrayOutputStream();
?83????????????int?ch?=?0;
?84????????????while?((ch?=?input.read())?!=?-1)?{
?85????????????????byteArray.write(ch);
?86????????????}
?87????????????//?System.out.println(byteArray.size());
?88????????????myData?=?byteArray.toByteArray();
?89????????????//?System.out.println(myData.length);
?90????????}?catch?(Exception?e)?{
?91????????????e.printStackTrace();
?92????????}
?93????????return?myData;
?94????}
?95
?96????public?void?sendMail()?throws?Exception?{
?97????????Properties?pos?=?new?Properties();
?98????????pos.put("mail.smtp.host",?"10.5.1.1");
?99????????javax.mail.Session?mailSession?=?javax.mail.Session.getInstance(pos,
100????????????????null);
101????????MimeMessage?msg?=?new?MimeMessage(mailSession);
102????????msg.setFrom(new?InternetAddress(this.getSenderAddress()));
103????????msg.setSubject(this.getTitle());
104????????msg.setSentDate(new?Date());
105????????Address[]?adds?=?InternetAddress.parse(getToAddress());
106????????msg.addRecipients(javax.mail.Message.RecipientType.TO,?adds);
107????????//?新建一個MimeMultipart對象用來存放BodyPart對象(事實上可以存放多個)
108????????MimeMultipart?mm?=?new?MimeMultipart("related");
109????????//?新建一個存放信件內容的BodyPart對象
110????????BodyPart?mdp?=?new?MimeBodyPart();
111????????//?給BodyPart對象設置內容和格式/編碼方式
112????????mdp.setContent(this.getContent(),?"text/html;charset=utf-8");
113????????//?這句很重要，千萬不要忘了
114????????mm.addBodyPart(mdp);
115
116????????//?－－－－－－－－－圖片處理開始！！！！！！！！！！！！！！！！
117????????mdp?=?new?MimeBodyPart();
118????????byte?bbb[]?=?new?byte[1024?*?10];
119????????this.getClass().getClassLoader().getResourceAsStream("notice.jpg")
120????????????????.read(bbb);
121????????DataHandler?dh?=?new?DataHandler(new?ByteArrayDataSource(this
122????????????????.getImageBytes("notice.jpg"),?"application/octet-stream"));
123????????mdp.setDataHandler(dh);
124????????//?加上這句將作為附件發送,否則將作為信件的文本內容
125????????mdp.setFileName("1.jpg");
126????????mdp.setHeader("content-id",?"<IMG1>");
127????????//?將含有附件的BodyPart加入到MimeMultipart對象中
128????????mm.addBodyPart(mdp);
129????????//?－－－－－－－－－圖片處理結束！！！！！！！！！！！！！！！！
130
131????????//?把mm作為消息對象的內容
132????????msg.setContent(mm);
133????????msg.saveChanges();
134????????javax.mail.Transport?transport?=?mailSession.getTransport("smtp");
135????????transport.connect();
136????????transport.sendMessage(msg,?msg.getAllRecipients());
137????????transport.close();
138
139????}
140
141????/**?*//**
142?????*?Method?getCcAddress.
143?????*?
144?????*?@return?String
145?????*/
146????public?String?getCcAddress()?{
147????????return?ccAddress;
148????}
149
150????/**?*//**
151?????*?Method?getContent.
152?????*?
153?????*?@return?String
154?????*/
155????public?String?getContent()?{
156????????if?(content?==?null)?{
157????????????return?"";
158????????}?else?{
159????????????return?content;
160????????}
161????}
162
163????/**?*//**
164?????*?Method?getMailServerAddress.
165?????*?
166?????*?@return?String
167?????*/
168????public?String?getMailServerAddress()?{
169????????return?"10.5.1.1";
170????}
171
172????/**?*//**
173?????*?Method?getSenderId.
174?????*?
175?????*?@return?String
176?????*/
177????public?String?getUser()?{
178????????if?(user?==?null?||?user.equals(""))?{
179????????????user?=?"";
180????????}
181????????return?user;
182????}
183
184????/**?*//**
185?????*?Method?getPassword.
186?????*?
187?????*?@return?String
188?????*/
189????public?String?getPassword()?{
190????????if?(password?==?null?||?password.equals(""))?{
191????????????password?=?"";
192????????}
193????????return?password;
194????}
195
196????/**?*//**
197?????*?Method?getTitle.
198?????*?
199?????*?@return?String
200?????*/
201????public?String?getTitle()?{
202????????if?(title?==?null)?{
203????????????return?"";
204????????}?else?{
205????????????return?title;
206????????}
207????}
208
209????/**?*//**
210?????*?Method?getToAddress.
211?????*?
212?????*?@return?String
213?????*/
214????public?String?getToAddress()?{
215????????return?toAddress;
216????}
217
218????/**?*//**
219?????*?Method?isHtml.
220?????*?
221?????*?@return?boolean
222?????*/
223????public?boolean?isHtml()?{
224????????return?isHtml;
225????}
226
227????/**?*//**
228?????*?Method?setCcAddress.
229?????*?
230?????*?@param?ccAddress
231?????*????????????String
232?????*/
233????public?void?setCcAddress(String?ccAddress)?{
234????????this.ccAddress?=?ccAddress;
235????}
236
237????/**?*//**
238?????*?Method?setContent.
239?????*?
240?????*?@param?content
241?????*????????????String
242?????*/
243????public?void?setContent(String?content)?{
244????????this.content?=?content;
245????}
246
247????/**?*//**
248?????*?Method?setMailServerAddress.
249?????*?
250?????*?@param?mailServerAddress
251?????*????????????String
252?????*/
253????public?void?setMailServerAddress(String?mailServerAddress)?{
254????????this.mailServerAddress?=?mailServerAddress;
255????}
256
257????/**?*//**
258?????*?Method?setUser.
259?????*?
260?????*?@param?user
261?????*????????????String
262?????*/
263????public?void?setUser(String?user)?{
264????????this.user?=?user;
265????}
266
267????/**?*//**
268?????*?Method?setSenderPassword.
269?????*?
270?????*?@param?password
271?????*????????????String
272?????*/
273????public?void?setPassword(String?password)?{
274????????this.password?=?password;
275????}
276
277????/**?*//**
278?????*?Method?setTitle.
279?????*?
280?????*?@param?title
281?????*????????????String
282?????*/
283????public?void?setTitle(String?title)?{
284????????this.title?=?title;
285????}
286
287????/**?*//**
288?????*?Method?setToAddress.
289?????*?
290?????*?@param?toAddress
291?????*????????????String
292?????*/
293????public?void?setToAddress(String?toAddress)?{
294????????this.toAddress?=?toAddress;
295????}
296
297????/**?*//**
298?????*?Method?setIsHtml.
299?????*?
300?????*?@param?isHtml
301?????*????????????boolean
302?????*/
303????public?void?setIsHtml(boolean?isHtml)?{
304????????this.isHtml?=?isHtml;
305????}
306
307????/**?*//**
308?????*?Method?setAttachmentFiles.
309?????*?
310?????*?@param?attachmentFiles
311?????*????????????Map
312?????*/
313????public?void?setAttachmentFiles(Map?attachmentFiles)?{
314????????this.attachmentFiles?=?attachmentFiles;
315????}
316
317????/**?*//**
318?????*?Method?getAttachmentFiles.
319?????*?
320?????*?@return?Map
321?????*/
322????public?Map?getAttachmentFiles()?{
323????????return?attachmentFiles;
324????}
325
326????/**?*//**
327?????*?Method?setHtml.
328?????*?
329?????*?@param?isHtml
330?????*????????????boolean
331?????*/
332????public?void?setHtml(boolean?isHtml)?{
333????????this.isHtml?=?isHtml;
334????}
335
336????/**?*//**
337?????*?Method?getSenderAddress.
338?????*?
339?????*?@return?String
340?????*/
341????public?String?getSenderAddress()?{
342????????return?senderAddress;
343????}
344
345????/**?*//**
346?????*?Method?setSenderAddress.
347?????*?
348?????*?@param?senderAddress
349?????*????????????String
350?????*/
351????public?void?setSenderAddress(String?senderAddress)?{
352????????this.senderAddress?=?senderAddress;
353????}
354
355????public?String?readMailTemplate(String?year,?String?season)
356????????????throws?IOException?{
357????????ClassLoader?loder?=?this.getClass().getClassLoader();
358????????InputStream?is?=?loder.getResourceAsStream("t.html");
359????????byte[]?buf?=?new?byte[1024?*?5];
360????????is.read(buf);
361????????String?t?=?new?String(buf,?"utf-8");
362????????t?=?t.replaceFirst("#year",?year);
363????????t?=?t.replaceFirst("#season",?season);
364????????//?System.out.println(t);
365????????return?t;
366????}
367
368????public?static?void?sendNoticeMail(String?title,?String?year,?String?season,
369????????????String?sender,?File?f)?{
370????????SendMailUtil?logic?=?new?SendMailUtil();
371????????try?{
372????????????logic.setTitle(title);
373????????????//?logic.setMailServerAddress("10.5.1.1");
374????????????String?temp?=?logic.readMailTemplate(year,?season);
375????????????logic.setSenderAddress(sender);
376????????????FileReader?fr?=?new?FileReader(f);
377
378????????????char[]?ch?=?new?char[new?Long(f.length()).intValue()];
379????????????fr.read(ch);
380????????????StringBuffer?sb?=?new?StringBuffer(new?Long(f.length()).intValue());
381????????????for?(int?i?=?0;?i?<?ch.length;?i++)?{
382????????????????sb.append(ch[i]);
383????????????}
384????????????String[]?all?=?sb.toString().split("\n");
385
386????????????//?System.out.println(sb.toString());
387????????????for?(int?i?=?0;?i?<?all.length;?i++)?{
388????????????????if?(all[i].equals(""))?{
389????????????????????continue;
390????????????????}
391????????????????String?t?=?temp;
392????????????????String[]?item?=?all[i].split(",");
393????????????????logic.setToAddress(item[2]);
394????????????????//?處理內容
395????????????????t?=?t.replaceFirst("#name",?item[1]?+?"("?+?item[0]?+?")");
396????????????????t?=?t.replaceAll("#total",?item[3]);
397????????????????t?=?t.replaceFirst("#tax",?item[4]);
398????????????????t?=?t.replaceFirst("#actualTotal",?item[5]);
399????????????????logic.setContent(t);
400????????????????logic.sendMail();
401????????????}
402????????}?catch?(Exception?e)?{
403????????????e.printStackTrace();
404????????}
405????}
406}4，小技巧
我第一次發送后，發現讀取圖片的程序不對，在Outlook 2003中打開郵件，發現沒有出現圖片，搞半天也不知道是什么原因，后來我用FoxMail打開郵件，發現圖片附件上打了個叉叉，才知道是附件中的圖片讀取不對，如果你有這樣的問題，不妨換個Mail客戶端試試。
posted on 2007-12-03 16:42
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