liferay邮件发送类

liferay的邮件发送写的异常复杂,用了配置文件,我只要一个简单的发送功能,用他的实在是杀鸡用牛刀,自已写了一个发送的类,代码如下:
package com.ext.portlet.mail;

import java.util.Properties;

import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.Address;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.Multipart;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

public class SendMail {

private static Log log = LogFactory.getLog(SendMail.class);

private MimeMessage mimeMsg; // MIME邮件对象

private Session session; // 邮件会话对象

private Properties props; // 系统属性

private boolean needAuth = false; // smtp是否需要认证

private String username = ""; // smtp认证用户名和密码

private String password = "";

private Multipart mp; // Multipart对象,邮件内容,标题,附件等内容均添加到其中后再生成MimeMessage对象

/**
*
*/
public SendMail() {
setSmtpHost("");// 如果没有指定邮件服务器,就从getConfig类中获取
createMimeMessage();
}

public SendMail(String smtp) {
setSmtpHost(smtp);
createMimeMessage();
}

/**
* @param hostName
*            String
*/
public void setSmtpHost(String hostName) {
log.info("Setting system properties...mail.smtp.host = " + hostName);
if (props == null)
props = System.getProperties(); // 获得系统属性对象

props.put("mail.smtp.host", hostName); // 设置SMTP主机
}

/**
* @return boolean
*/
public boolean createMimeMessage() {
try {
log.info("Ready to get the mail session object...");
session = Session.getDefaultInstance(props, null); // 获得邮件会话对象
} catch (Exception e) {
log.error("Get a error when init the session object..." + e);
return false;
}

log.info("Ready to create MIME mail object...");
try {
mimeMsg = new MimeMessage(session); // 创建MIME邮件对象
mp = new MimeMultipart();

return true;
} catch (Exception e) {
log.error("Fail to create MIME mail object..." + e);
return false;
}
}

/**
* @param need
*            boolean
*/
public void setNeedAuth(boolean need) {
log.info("Setting SMTP auth...mail.smtp.auth = " + need);
if (props == null)
props = System.getProperties();

if (need) {
props.put("mail.smtp.auth", "true");
} else {
props.put("mail.smtp.auth", "false");
}
}

/**
* @param name
*            String
* @param pass
*            String
*/
public void setNamePass(String name, String pass) {
username = name;
password = pass;
}

/**
* @param mailSubject
*            String
* @return boolean
*/
public boolean setSubject(String mailSubject) {
log.info("Setting mail subject...");
try {
mimeMsg.setSubject(mailSubject);
return true;
} catch (Exception e) {
log.error("Fail to setting the mail subject...");
return false;
}
}

/**
* @param mailBody
*            String
*/
public boolean setBody(String mailBody) {
try {
BodyPart bp = new MimeBodyPart();
bp.setContent(
"<meta http-equiv=Content-Type content=text/html; charset=gb2312>"
+ mailBody, "text/html;charset=GB2312");
mp.addBodyPart(bp);

return true;
} catch (Exception e) {
log.error("Fail to setting the mail content" + e);
return false;
}
}

/**
* @param name
*            String
* @param pass
*            String
*/
public boolean addFileAffix(String filename) {

System.out.println("Add annex..." + filename);

try {
BodyPart bp = new MimeBodyPart();
FileDataSource fileds = new FileDataSource(filename);
bp.setDataHandler(new DataHandler(fileds));
bp.setFileName(fileds.getName());

mp.addBodyPart(bp);

return true;
} catch (Exception e) {
log.error("Add annex：" + filename + "error" + e);
return false;
}
}

/**
* @param name
*            String
* @param pass
*            String
*/
public boolean setFrom(String from) {
log.info("Setting From...");
try {
mimeMsg.setFrom(new InternetAddress(from)); // 设置发信人
return true;
} catch (Exception e) {
return false;
}
}

/**
* @param name
*            String
* @param pass
*            String
*/
public boolean setTo(String to) {
if (to == null)
return false;

try {
mimeMsg.setRecipients(Message.RecipientType.TO, InternetAddress
.parse(to));
return true;
} catch (Exception e) {
return false;
}

}

/**
* @param name
*            String
* @param pass
*            String
*/
public boolean setCopyTo(String copyto) {
if (copyto == null)
return false;
try {
mimeMsg.setRecipients(Message.RecipientType.CC,
(Address[]) InternetAddress.parse(copyto));
return true;
} catch (Exception e) {
return false;
}
}

/**
* @param name
*            String
* @param pass
*            String
*/
public boolean sendout() {
try {
mimeMsg.setContent(mp);
mimeMsg.saveChanges();
log.info("Sending....");

Session mailSession = Session.getInstance(props, null);
Transport transport = mailSession.getTransport("smtp");
transport.connect((String) props.get("mail.smtp.host"), username,
password);
transport.sendMessage(mimeMsg, mimeMsg
.getRecipients(javax.mail.Message.RecipientType.TO));
// transport.send(mimeMsg);

log.info("Send mail success");
transport.close();

return true;
} catch (Exception e) {
log.error("Send mail fail" + e);
e.printStackTrace();
return false;
}
}
}