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通过SMTP（Gmail）在Android上发送电子邮件

IT知识android电子邮件

【通过SMTP（Gmail）在Android上发送电子邮件】不操千曲而后晓声，观千剑而后识器。这篇文章主要讲述通过SMTP（Gmail）在Android上发送电子邮件相关的知识，希望能为你提供帮助。

  1. package org.apache.android.mail;
  2.  
  3. import javax.activation.DataHandler;
  4. import javax.activation.DataSource;
  5. import javax.mail.Message;
  6. import javax.mail.PasswordAuthentication;
  7. import javax.mail.Session;
  8. import javax.mail.Transport;
  9. import javax.mail.internet.InternetAddress;
  10. import javax.mail.internet.MimeMessage;
  11. import java.io.ByteArrayInputStream;
  12. import java.io.IOException;
  13. import java.io.InputStream;
  14. import java.io.OutputStream;
  15. import java.security.Security;
  16. import java.util.Properties;
  17.  
  18. public class GMailSender extends javax.mail.Authenticator {
  19. private String mailhost = " smtp.gmail.com" ;
  20. private String user;
  21. private String password;
  22. private Session session;
  23.  
  24. static {
  25. Security.addProvider( new org.apache.harmony.xnet.provider.jsse.JSSEProvider( ) ) ;
  26. }
  27.  
  28. public GMailSender( String user, String password) {
  29. this.user = user;
  30. this.password = password;
  31.  
  32. Properties props = new Properties( ) ;
  33. props.setProperty( " mail.transport.protocol" , " smtp" ) ;
  34. props.setProperty( " mail.host" , mailhost) ;
  35. props.put( " mail.smtp.auth" , " true" ) ;
  36. props.put( " mail.smtp.port" , " 465" ) ;
  37. props.put( " mail.smtp.socketFactory.port" , " 465" ) ;
  38. props.put( " mail.smtp.socketFactory.class" ,
  39. " javax.net.ssl.SSLSocketFactory" ) ;
  40. props.put( " mail.smtp.socketFactory.fallback" , " false" ) ;
  41. props.setProperty( " mail.smtp.quitwait" , " false" ) ;
  42.  
  43. session = Session.getDefaultInstance( props, this) ;
  44. }
  45.  
  46. protected PasswordAuthentication getPasswordAuthentication( ) {
  47. return new PasswordAuthentication( user, password) ;
  48. }
  49.  
  50. public synchronized void sendMail( String subject, String body, String sender, String recipients) throws Exception {
  51. MimeMessage message = new MimeMessage( session) ;
  52. DataHandler handler = new DataHandler( new ByteArrayDataSource( body.getBytes( ) , " text/plain" ) ) ;
  53. message.setSender( new InternetAddress( sender) ) ;
  54. message.setSubject( subject) ;
  55. message.setDataHandler( handler) ;
  56. if ( recipients.indexOf( ',') > 0)
  57. message.setRecipients( Message.RecipientType.TO, InternetAddress.parse( recipients) ) ;
  58. else
  59. message.setRecipient( Message.RecipientType.TO, new InternetAddress( recipients) ) ;
  60. Transport.send( message) ;
  61. }
  62.  
  63. public class ByteArrayDataSource implements DataSource {
  64. private byte[ ] data;
  65. private String type;
  66.  
  67. public ByteArrayDataSource( byte[ ] data, String type) {
  68. super( ) ;
  69. this.data = https://www.songbingjia.com/android/data;
  70. this.type = type;
  71. }
  72.  
  73. public ByteArrayDataSource( byte[ ] data) {
  74. super( ) ;
  75. this.data = https://www.songbingjia.com/android/data;
  76. }
  77.  
  78. public void setType( String type) {
  79. this.type = type;
  80. }
  81.  
  82. public String getContentType( ) {
  83. if ( type == null)
  84. return " application/octet-stream" ;
  85. else
  86. return type;
  87. }
  88.  
  89. public InputStream getInputStream( ) throws IOException {
  90. return new ByteArrayInputStream( data) ;
  91. }
  92.  
  93. public String getName( ) {
  94. return " ByteArrayDataSource" ;
  95. }
  96.  
  97. public OutputStream getOutputStream( ) throws IOException {
  98. throw new IOException( " Not Supported" ) ;
  99. }
  100. }
  101. }


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