用commons-email，javax.mail发送邮件，中文附件名乱码。

import java.io.UnsupportedEncodingException;
 
import javax.mail.internet.MimeUtility;
 
import org.apache.commons.mail.EmailAttachment;
import org.apache.commons.mail.EmailException;
import org.apache.commons.mail.MultiPartEmail;
 
public class MailTest {
    public static void sendMultiPartEmail() throws EmailException {
        EmailAttachment attachment = new EmailAttachment();
        // 设置附件路径
        attachment.setPath("C:/test.log");
        attachment.setDisposition(EmailAttachment.ATTACHMENT);
        // 附件描述
        attachment.setDescription("This is Smile picture");
        String fileName = "中文名附件.log";
        try {
            fileName = MimeUtility.encodeText(fileName); // 解决中文附件乱码
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        attachment.setName(fileName);
        // 创建一个含附件的email
        MultiPartEmail multipartemail = new MultiPartEmail();
        multipartemail.setHostName("smtp.qq.com");// 设置主机名称
        multipartemail.setCharset("GBK");// 设置字符编码
        multipartemail.addTo("您的QQ号@qq.com"); // 设置发送邮件目的地址
        // 设置发送源地址和显示名，此处是自己发给自己，可以填任意邮件地址
        multipartemail.setFrom("您的QQ号@qq.com", "邮件里显示的中文名");
        multipartemail.setAuthentication("您的QQ号，不含@qq.com", "您的QQ密码");// 设置用户名和密码
        multipartemail.setSubject("测试发送附件");// 设置主题
        multipartemail.setMsg("暂无");// 设置邮件内容
        multipartemail.attach(attachment);// 添加附件
        
        multipartemail.send();// 发送邮件
    }
 
    public static void main(String[] args) {
        try {
            MailTest.sendMultiPartEmail();
        } catch (EmailException e) {
            e.printStackTrace();
        }
        System.out.println("send over");
    }
}