Android(安卓)App 使用javax.mail.* API发送email&&Eclipse工程导入jar

福利!!在附件中赠送相关jar！！

1.导入相关jar：

调用邮件操作相关的jar如下(可在code.google.com上下载)：

activation.jar

additionnal.jar

mail.jar

在需要导入的Android工程中属性页设置：

选择Add External Jar,并将三个jar包导入；

现在即可在代码调用相关API：

2.在项目中新建一个邮件发送的MailSender类：

代码：

import java.util.Properties;import javax.activation.DataHandler;import javax.activation.FileDataSource;import javax.mail.Address;import javax.mail.Authenticator;import javax.mail.MessagingException;import javax.mail.Session;import javax.mail.Transport;import javax.mail.internet.AddressException;import javax.mail.internet.InternetAddress;import javax.mail.internet.MimeBodyPart;import javax.mail.internet.MimeMessage;import javax.mail.internet.MimeMultipart;import javax.mail.Message;public class MailSender extends Authenticator {    private Properties properties;    private Session session;    private MimeMultipart multipart;    private Message message;    public MailSender() {        super();        this.properties = new Properties();    }    public void setProperties(String host, String post) {        this.properties.put("mail.smtp.host", host);        this.properties.put("mail.smtp.post", post);        this.properties.put("mail.smtp.auth", true);        this.session = Session.getInstance(properties);        this.message = new MimeMessage(session);        this.multipart = new MimeMultipart("mixed");    }    public void setReceiver(String[] receiver) throws MessagingException {        Address[] address = new InternetAddress[receiver.length];        for (int i = 0; i < receiver.length; i++) {            address[i] = new InternetAddress(receiver[i]);        }        this.message.setRecipients(Message.RecipientType.TO, address);    }    public void setMessage(String from, String title, String content)            throws AddressException, MessagingException {        this.message.setFrom(new InternetAddress(from));        this.message.setSubject(title);        MimeBodyPart textBody = new MimeBodyPart();        textBody.setContent(content, "text/html;charset=gbk");        this.multipart.addBodyPart(textBody);    }    public void addAttachment(String filePath) throws MessagingException {        FileDataSource fileDataSource = new FileDataSource(new File(filePath));        DataHandler dataHandler = new DataHandler(fileDataSource);        MimeBodyPart mimeBodyPart = new MimeBodyPart();        mimeBodyPart.setDataHandler(dataHandler);        mimeBodyPart.setFileName(fileDataSource.getName());        this.multipart.addBodyPart(mimeBodyPart);    }    public void sendEmail(String host, String account, String pwd)            throws MessagingException {        this.message.setSentDate(new Date());        this.message.setContent(this.multipart);        this.message.saveChanges();        Transport transport = session.getTransport("smtp");        transport.connect(host, account, pwd);        transport.sendMessage(message, message.getAllRecipients());        transport.close();    }}

注意区别两个同名的类：javax.mail.Message和android.os.Message；

3.在主类中新建子线程调用MailSender类：

3.1 Activity主类中变量声明、参数设置：

private MailSender mailsender;private String str_SMTP = "smtp.126.com";private String str_SMTP_PORT = "587";private String str_USER_NAME = "xxx@126.com";private String str_PASSWORD = "******";private String str_MAILTITLE = "System.Log";private String str_TARGETMAIL = "yyy@yahoo.com";private String str_SMTP = "smtp.126.com";private String str_SMTP_PORT = "587";mailsender = new MailSender();mailsender.setProperties(str_SMTP, str_SMTP_PORT);

本例使用一个126的邮箱发到一个yahoo邮箱中；

3.2 写了个方法：

public void SendingTargetMail(String str_content) throws AddressException,MessagingException {mailsender.setMessage(str_USER_NAME, str_MAILTITLE, str_content);mailsender.setReceiver(new String[] { str_TARGETMAIL });mailsender.sendEmail(str_SMTP, str_USER_NAME, str_PASSWORD);

3.3 写个子线程调用（邮件正文遵循html语法）：

Runnable Sward_runnable = new Runnable() {        public void run() {                            SendingTargetMail("<html><body>"   + "System time    :"+ getCurrentTime() + "<br>"                                                   + "</body><html>");             }    };

3.4 主线程启动子线程，后者一启动就发了个邮件：

Sward_Thread = new Thread(Sward_runnable);Sward_Thread.start();

3.5 Manifest文件中别忘了加上权限声明：

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

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