Android中使用javamail發送郵件附件

使用javamail必須先下載3個JAR包並導入工程 activation.jar additonnal.jar mail.jar

導入方法為: project->properties->java build path->libraries->add external jars

然後在Android項目中添加網絡訪問權限

<uses-permission android:name="android.permission.INTERNET"></uses-permission>

最後在程序中加載如下包

1. import android.app.Activity;
2. import android.os.Bundle;
3. import android.util.Log;
6. import java.util.Properties;
7. import javax.activation.DataHandler;
8. import javax.activation.FileDataSource;
9. import javax.mail.*;
10. import javax.mail.internet.*;
11. import javax.mail.PasswordAuthentication;

調用函數代碼如下

1. class MyAuthenticator
2. extends javax.mail.Authenticator {
3. private String strUser;
4. private String strPwd;
5. public MyAuthenticator(String user, String password)
6. {
7. this.strUser = user;
8. this.strPwd = password;
9. }
12. protected PasswordAuthentication getPasswordAuthentication()
13. {
14. return new PasswordAuthentication(strUser, strPwd);
15. }
16. }
20. public void send_mail_file(String str_to_mail,String str_from_mail,String str_smtp,String str_user,String str_pass,String str_title,String str_body,String str_file_path)
21. {
22. Log.v("lengfeng","send_mail_file");
25. String host = str_smtp; //發件人使用發郵件的電子信箱服務器
26. String from = str_from_mail; //發郵件的出發地（發件人的信箱）
27. String to = str_to_mail; //發郵件的目的地（收件人信箱）
30. Log.v("lengfeng",str_smtp);
31. Log.v("lengfeng",str_from_mail);
32. Log.v("lengfeng",str_to_mail);
34. Properties props = System.getProperties();// Get system properties
38. props.put("mail.smtp.host", host);// Setup mail server
42. props.put("mail.smtp.auth", "true"); //這樣才能通過驗證
45. MyAuthenticator myauth = new MyAuthenticator(str_user, str_pass);// Get session
47. Session session = Session.getDefaultInstance(props, myauth);
51. MimeMessage message = new MimeMessage(session); // Define message
56. try {
57. message.setFrom(new InternetAddress(from)); // Set the from address
58. } catch (AddressException e) {
59. e.printStackTrace();
60. } catch (MessagingException e) {
61. e.printStackTrace();
62. }
66. try {
67. message.addRecipient(Message.RecipientType.TO,new InternetAddress(to));// Set the to address
68. } catch (AddressException e) {
69. e.printStackTrace();
70. } catch (MessagingException e) {
71. e.printStackTrace();
72. }
76. try {
77. message.setSubject(str_title);// Set the subject
78. } catch (MessagingException e) {
79. e.printStackTrace();
80. }
84. try {
85. message.setText(str_body);// Set the content
86. } catch (MessagingException e) {
87. e.printStackTrace();
88. }
92. MimeBodyPart attachPart = new MimeBodyPart();
93. FileDataSource fds = new FileDataSource(str_file_path); //打開要發送的文件
94. try {
95. attachPart.setDataHandler(new DataHandler(fds));
96. } catch (MessagingException e) {
97. e.printStackTrace();
98. }
99. try {
100. attachPart.setFileName(fds.getName());
101. } catch (MessagingException e) {
102. e.printStackTrace();
103. }
106. MimeMultipart allMultipart = new MimeMultipart("mixed"); //附件
107. try {
108. allMultipart.addBodyPart(attachPart);//添加
109. } catch (MessagingException e) {
110. e.printStackTrace();
111. }
112. try {
113. message.setContent(allMultipart);
114. } catch (MessagingException e) {
115. e.printStackTrace();
116. }
117. try {
118. message.saveChanges();
119. } catch (MessagingException e) {
120. e.printStackTrace();
121. }
124. try {
125. Transport.send(message);//開始發送
126. } catch (MessagingException e) {
127. e.printStackTrace();
128. }
130. }