java發郵件例子

首先得下載包:activation.jar,mail.jar

 

具體代碼如下：

package alogrim;</p><p>import java.util.Date;<br />import java.util.Properties;</p><p>import javax.mail.Session;<br />import javax.mail.Transport;<br />import javax.mail.internet.InternetAddress;<br />import javax.mail.internet.MimeMessage;</p><p>public class SendMail {</p><p>//�����ʼ�<br />public static void send() throws Exception{<br />Properties props = System.getProperties(); //ȷ����ǰ��ϵͳ����<br />props.put("mail.smtp.host", "smtp.163.com");<br />props.put("mail.smtp.auth", "true");<br />Session session = Session.getDefaultInstance(props, null);<br />MimeMessage msg = new MimeMessage(session);</p><p>InternetAddress[] toList = InternetAddress.parse("2004369701@163.com", false);<br />msg.addRecipients(MimeMessage.RecipientType.TO, toList);</p><p>InternetAddress fromAddress = new InternetAddress("2004369701@163.com");<br />msg.setFrom(fromAddress);<br />msg.setSentDate(new Date());</p><p>msg.setSubject("mail", "ISO-2022-JP");<br />String txt = "hello test mail OK?";<br />msg.setText(txt,"ISO-2022-JP");</p><p>Transport t = session.getTransport("smtp");<br />t.connect("smtp.163.com", "郵箱名", "郵箱密碼");<br />t.sendMessage(msg, toList);<br />}</p><p>/**<br /> * @param args<br /> * @throws Exception<br /> */<br />public static void main(String[] args) throws Exception {<br />// TODO Auto-generated method stub<br />send();<br />}</p><p>}<br />

 

可能會報如下異常：

 

異常：NoClassDefFoundError: com/sun/activation/registries/LogSupport

 

解決方案：

第一個問題就是刪除Java EE 5 Libraries/javaee.jar/mail。

 

第二個問題就是刪除Java EE 5 Libraries/javaee.jar/activation。然後再網上下載最新的activation.jar

 

 

如何刪除：

用rar開啟D:/MyEclipse 7.0/Genuitec/Common/plugins/com.genuitec.eclipse.j2eedt.core_7.0.0.zmyeclipse70020081206/data/libraryset/EE_5/javaee.jar,用壓縮包開啟，找到想要刪除的檔案夾。