邮箱组件开发（使用javamail开发）

package Email;

import java.io.IOException;

import java.io.InputStream;

import java.util.Properties;

import javax.activation.DataHandler;

import javax.activation.FileDataSource;

import javax.mail.Authenticator;

import javax.mail.BodyPart;

import javax.mail.Message;

import javax.mail.Message.RecipientType;

import javax.mail.MessagingException;

import javax.mail.Multipart;

import javax.mail.PasswordAuthentication;

import javax.mail.Session;

import javax.mail.Transport;

import javax.mail.internet.AddressException;

import javax.mail.internet.InternetAddress;

import javax.mail.internet.MimeBodyPart;

import javax.mail.internet.MimeMessage;

import javax.mail.internet.MimeMultipart;

import sun.misc.BASE64Encoder;

/**

* 邮件发送工具类

*/

public class EmailUtil {

/**

* @param to

* :收件人邮箱,多个之间用分号分开

* @param subject

* :邮件主题

* @param content

* :邮件内容

* @param affix

* :附件地址,多个附件用分号";"分隔

* @throws Exception

*/

private Message message;

private Properties prop;

private String affix = ""; // 附件地址

// private String affixName = ""; // 附件名称

// 向multipart对象中添加邮件的附件,添加邮件内容

private Multipart multipart = new MimeMultipart();

public void sendWithAttach(String to, String subject, String content,

String affix) throws Exception {

methodFirst(to, subject);

setAffix(affix);

addContent(content);

addAttachment();

sendLast();

System.out.println("发送成功");

}

/**

*

* @param to

* :收件人邮箱,多个之间用分号分开

* @param cc

* :抄送人邮箱,多个之间用分号分开

* @param title

* :邮件主题

* @param content

* :邮件内容

* @param affix

* :附件地址,多个附件用分号";"分隔

*

* @throws Exception

*/

public void sendWithAttach(String to, String cc, String subject, String content,

String affix) throws Exception {

methodFirst(to, subject);

setAffix(affix);

addContent(content);

methodCc(cc);

addAttachment();

sendLast();

System.out.println("发送成功");

}

/**

*

* @param to

* :收件人邮箱,多个之间用分号分开

* @param cc

* :抄送人邮箱,多个之间用分号分开

* @param bcc

* :暗送人邮箱,多个之间用分号分开

* @param title

* :邮件主题

* @param content

* :邮件内容

* @param affix

* :附件地址,多个附件用分号";"分隔

*

* @throws Exception

*/

public void sendWithAttach(String to, String cc, String bcc, String subject,

String content, String affix) throws Exception {

methodFirst(to, subject);

setAffix(affix);

addContent(content);

methodCc(cc);

methodBcc(bcc);

addAttachment();

sendLast();

System.out.println("发送成功");

}

/***********************************************************************/

/**

* @param to

* :收件人邮箱,多个之间用分号分开

* @param subject

* :邮件主题

* @param content

* :邮件内容

* @throws Exception

*/

public void send(String to, String subject, String content)

throws Exception {

methodFirst(to, subject);

addContent(content);

sendLast();

System.out.println("发送成功");

}

/**

*

* @param to

* :收件人邮箱,多个之间用分号分开

* @param cc

* :抄送人邮箱,多个之间用分号分开

* @param title

* :邮件主题

* @param content

* :邮件内容

*

* @throws Exception

*/

public void send(String to, String cc, String subject, String content)

throws Exception {

methodFirst(to, subject);

methodCc(cc);

addContent(content);

sendLast();

System.out.println("发送成功");

}

/**

*

* @param to

* :收件人邮箱,多个之间用分号分开

* @param cc

* :抄送人邮箱,多个之间用分号分开

* @param bcc

* :暗送人邮箱,多个之间用分号分开

* @param title

* :邮件主题

* @param content

* :邮件内容

*

* @throws Exception

*/

public void send(String to, String cc, String bcc, String subject,

String content) throws Exception {

if(to!=null&&!to.equals("")&&(cc.equals("") || cc==null)&&(bcc.equals("") || bcc==null)){

send(to, subject, content);

}else if(to!=null&&!to.equals("")&&cc!=null&&!cc.equals("")&&(bcc.equals("") || bcc==null)){

send(to, cc, subject, content);

}else if(to!=null&&!to.equals("")&&cc!=null&&!cc.equals("")&&!bcc.equals("")&&bcc!=null){

methodFirst(to, subject);

methodCc(cc);

methodBcc(bcc);

addContent(content);

sendLast();

System.out.println("发送成功");

}

else{

throw new Exception("参数异常，请仔细检查参数");

}

}

/**

* @return Properties 读取properties文件的值，Properties放在src路径下

* @throws Exception

*/

public static Properties getProp() {

InputStream in = EmailUtil.class.getClassLoader().getResourceAsStream(

"email.properties");

Properties prop = new Properties();

try {

prop.load(in);

} catch (IOException e) {

e.printStackTrace();

}

return prop;

}

/**

* 发送流程:设置收件人，主题

*

* @throws Exception

*/

public void methodFirst(String to, String subject) throws Exception {

prop = getProp();

// 设置基本参数

Properties props = new Properties();

// 设置主机

props.setProperty("mail.host", prop.getProperty("UrlHost"));

// 确定使用权限验证

props.setProperty("mail.smtp.auth", "true");

// 确定账号与密码

Authenticator authenticator = new Authenticator() {

public PasswordAuthentication getPasswordAuthentication() {

return new PasswordAuthentication(prop.getProperty("user"),

prop.getProperty("password"));

}

};

// 获得连接

Session session = Session.getDefaultInstance(props, authenticator);

// 编写消息

message = new MimeMessage(session);

// 发件人

message.setFrom(new InternetAddress(prop.getProperty("from")));

// 收件人 , to:收件人 cc:抄送 bcc:暗送

String[] tos = to.split(";");

InternetAddress[] ia = new InternetAddress[tos.length];

for (int i = 0; i < tos.length; i++) {

ia[i] = new InternetAddress(tos[i]);

}

message.setRecipients(RecipientType.TO, ia);

// 邮件 主题

message.setSubject(subject);

}

/**

* @param content

* @throws MessagingException

* 发送流程:添加邮件内容

*/

public void addContent(String content) throws MessagingException {

// 设置邮件的文本内容

BodyPart contentPart = new MimeBodyPart();

contentPart.setText(content);

multipart.addBodyPart(contentPart);

}

/**

* 邮件抄送方法

*/

public void methodCc(String cc) {

String[] ccs = cc.split(";");

InternetAddress[] iacc = new InternetAddress[ccs.length];

for (int i = 0; i < ccs.length; i++) {

try {

iacc[i] = new InternetAddress(ccs[i]);

} catch (AddressException e) {

e.printStackTrace();

}

}

try {

message.setRecipients(RecipientType.CC, iacc);

} catch (MessagingException e) {

e.printStackTrace();

}

}

/**

* 邮件密送方法

*/

public void methodBcc(String bcc) {

String[] bccs = bcc.split(";");

InternetAddress[] iabcc = new InternetAddress[bccs.length];

for (int i = 0; i < bccs.length; i++) {

try {

iabcc[i] = new InternetAddress(bccs[i]);

} catch (AddressException e) {

e.printStackTrace();

}

}

try {

message.setRecipients(RecipientType.BCC, iabcc);

} catch (MessagingException e) {

e.printStackTrace();

}

}

/**

* 设置附件参数值

* @param affix附件地址

*

*/

public void setAffix(String affix) {

this.affix = affix;

// this.affixName = affixName;

}

/**

* 发送邮件流程:添加附件

*/

public void addAttachment() {

String[] strs=affix.split(";");

if(strs!=null){

MimeBodyPart mbp;

FileDataSource source;

// 逐个加入附件

for (int j = 0; j < strs.length; j++) {

mbp = new MimeBodyPart();

source = new FileDataSource(strs[j]);

try {

mbp.setDataHandler(new DataHandler(source));

BASE64Encoder enc = new BASE64Encoder();

mbp.setFileName("=?GBK?B?"+enc.encode(source.getName().getBytes())+ "?=");

multipart.addBodyPart(mbp);

} catch (Exception e) {

e.printStackTrace();

}

}

}

}

/**

* 发送邮件流程:添加邮件内容，发送

*/

public void sendLast() {

// 发送消息

try {

message.setContent(multipart,

"text/html;charset=" + prop.getProperty("code"));

message.saveChanges();

Transport.send(message);

} catch (Exception e) {

e.printStackTrace();

}

}

}

配置文件email.properties,放在了src下

内容如下：

#以下为邮箱发送类配置信息

#邮箱主机地址

UrlHost=smtp.qq.com

#邮箱用户名

user=728975282@qq.com

#密码

password=1234

#邮件内容编码字符集

code=utf-8

#发件人（有的发件人可以与邮箱用户名相同，有的不同，这取决于底层是否对两者一致性的验证，

#一般而言，两者应该是一致的）

from=728975282@qq.com