javamail的smtp方式发送邮件实例

duguyiren3476 · 发表于 2013-2-3 10:26:33

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xxx@163.com中的xxx 但当确认无误时依然是认证错误可以修改为xxx@163.com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 = "zdw@live.cn";
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

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