- 本实例为javamail发送smtp邮件实例和常见问题解决
- package mail;
- import java.util.Date;
- import java.util.Properties;
- import javax.mail.Address;
- import javax.mail.Authenticator;
- import javax.mail.Message;
- import javax.mail.PasswordAuthentication;
- import javax.mail.Session;
- import javax.mail.Transport;
- import javax.mail.internet.InternetAddress;
- import javax.mail.internet.MimeMessage;
- /** *//**
- * 发送普通邮件,接受普通邮件 发送带有附件的邮件,接收带有附件的邮件 发送html形式的邮件,接受html形式的邮件 发送带有图片的邮件等做了一个总结。
- */
- public class Test
- {
- // 邮箱服务器
- private String host = "smtp.163.com";
- // 这个是你的邮箱用户名 用户名一般为[email protected]中的xxx 但当确认无误时依然是认证错误可以修改为[email protected]全名测试
- private String username = "******";
- // 你的邮箱密码
- private String password = "******";
- private String mail_head_name = "this is head of this mail";
- private String mail_head_value = "this is head of this mail";
- private String mail_to = "[email protected]";
- private String mail_from = "*****@163.com";
- private String mail_subject = "this is the subject of this test mail";
- private String mail_body = "this is the mail_body of this test mail";
- private String personalName = "我的邮件";
- public Test()
- {
- }
- /** *//**
- * 此段代码用来发送普通电子邮件
- */
- public void send() throws Exception
- {
- try
- {
- Properties props = new Properties(); // 获取系统环境
- Authenticator auth = new Email_Autherticator(); // 进行邮件服务器用户认证
- props.put("mail.smtp.host", host);
- props.put("mail.smtp.auth", "true");
- Session session = Session.getDefaultInstance(props, auth);
- // 设置session,和邮件服务器进行通讯。
- MimeMessage message = new MimeMessage(session);
- // message.setContent("foobar, "application/x-foobar"); // 设置邮件格式
- message.setSubject(mail_subject); // 设置邮件主题
- message.setText(mail_body); // 设置邮件正文
- message.setHeader(mail_head_name, mail_head_value); // 设置邮件标题
- message.setSentDate(new Date()); // 设置邮件发送日期
- Address address = new InternetAddress(mail_from, personalName);
- message.setFrom(address); // 设置邮件发送者的地址
- Address toAddress = new InternetAddress(mail_to); // 设置邮件接收方的地址
- message.addRecipient(Message.RecipientType.TO, toAddress);
- Transport.send(message); // 发送邮件
- System.out.println("send ok!");
- } catch (Exception ex)
- {
- ex.printStackTrace();
- throw new Exception(ex.getMessage());
- }
- }
- /** *//**
- * 用来进行服务器对用户的认证
- */
- public class Email_Autherticator extends Authenticator
- {
- public Email_Autherticator()
- {
- super();
- }
- public Email_Autherticator(String user, String pwd)
- {
- super();
- username = user;
- password = pwd;
- }
- public PasswordAuthentication getPasswordAuthentication()
- {
- return new PasswordAuthentication(username, password);
- }
- }
- public static void main(String[] args)
- {
- Test sendmail = new Test();
- try
- {
- sendmail.send();
- } catch (Exception ex)
- {
- }
- }
- }
常见错误
错误一:
Exception in thread "main" java.lang.NoClassDefFoundError: com/sun/mail/util/LineInputStream
解决方法:到D:\MyEclipse 6.5
\myeclipse\eclipse\plugins\com.genuitec.eclipse.j2eedt.core_6.5.0.zmyeclipse650200806
\data\libraryset\EE_5目录下找到javaee.jar删除其中到mail文件夹。
错误二:
Exception in thread "main" java.lang.NoClassDefFoundError: com/sun/mail/util/BEncoderStream
解决方法:
下载mail.jar和activation.jar文件加入到工程中。
下载地址:http://lym6520.iteye.com/blog/655373