Java封装好的mail包发送电子邮件的类

Java封装好的mail包发送电子邮件的类

下面代码是利用java mail包封装了一个发送邮件的类

import java.io.File;

import java.util.ArrayList;

import java.util.Date;

import java.util.List;

import java.util.Properties;

import javax.activation.DataHandler;

import javax.activation.FileDataSource;

import javax.mail.Message;

import javax.mail.MessagingException;

import javax.mail.Multipart;

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;

public class SendMail {

private static final String MAIL_ADDRESS_REGEX = "^[\\w\\.=-]+@[\\w\\.-]+\\.[\\w]{2,3}$";

private String mailServer;

private String sender;

private String[] receiver;

public SendMail(){

}

public void setMailBasicInfo(String mailServer,String sender,String receiver){

this.mailServer = mailServer;

this.sender = sender;

this.receiver =receiver.sTwKOopFVplit(",");

}

public void setMailBasicInfo(String mailServer,String sender,String[] users){

this.mailServer = mailServer;

this.sender = sender;

this.receiver = users;

}

public void setMailBasicInfo(String mailServer,String sender,List users){

this.mailServer = mailServer;

this.sender = sender;

this.receiver = new String[users.size()];

users.toArray(this.receiver);

}

public boolean send(String subject, String content, List fileNames)

{

subject = subject==null?"":subject;

content = content==null?"":content;

Properties props = new Properties();

props.put("mail.smtp.host", mailServer);

Session session = Session.getInstance(props, null);

try

{

InternetAddress[] receiver = getReceiverList();

if (receiver.length == 0)

{

System.out.println("receiver is null");

return false;

}

MimeMessage msg = new MimeMessage(session);

msg.setFrom(new InternetAddress(sender));

msg.setRecipients(Message.RecipientType.TO, receiver);

msg.setSubject(subject);

msg.setSentDate(new Date());

Multipart container = new MimeMultipart();

MimeBodyPart textBodyPart = new MimeBodyPart();

textBodyPart.setContent(content.toString(), "text/html;charset=gbk");

container.addBodyPart(textBodyPart);

doAttachFile(container,fileNames);

msg.setContent(container);

System.out.println("begin send mail");

Transport.send(msg);

System.out.println("send mail success");

}

catch (MessagingException e)

{

System.out.println("send mail fail");

System.out.println(e);

return false;

}

catch(Exception e){

return false;

}

return true;

}

public boolean send(String subject, String content){

return send(subject,content,null);

}

public boolean send(String subject){

return send(subject,null);

}

private void doAttachFile(Multipart container, List fileNames) throws MessagingException{

if(fileNames==null || fileNames.size()==0)

return;

for(String filename:fileNames){

File f = new File(filename);

if(!f.isFile())

continue;

System.out.println("the attach file is:"+filename);

MimeBodyPart fileBodyPart = new MimeBodyPart();

FileDataSource fds = new FileDataSource(f);// 要发送的附件地址

fileBodyPart.setDataHandler(new DataHandler(fds));

fileBodyPart.setFileName(fds.getName());// 设置附件的名称

container.addBodyPart(fileBodyPart);

}

}

private InternetAddress[] getReceiverList() throws AddressException

{

ArrayList toList = new ArrayList();

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

{

if (receiver[i].matches(MAIL_ADDRESS_REGEX))

{

toList.add(new InternetAddress(receiver[i]));

}

}

return (InternetAddress[]) toList.toArray(new InternetAddress[toList.size()]);

}

}

使用举例

String host = "168.xx.xx.xx"; //邮件服务器的地址

String subject = "发送邮件的主题";

String sender = "test@gmail.com";

List receivers = new ArrayList();

receivers.add("user1@263.com");

receivers.add("user2@263.com");

String content = "邮件主题";

SendMail sendMail = new SendMail();

sendMail.setMailBasicInfo(host, sender, receivers);

sendMail.send(subject, content, null); //没有附件

正文也可以是html内容，如

String content = "详细信息：请点击查看！";

我们再来看一个封装好的类

package com.message.base.email;

import com.message.base.spring.ApplicationHelper;

import com.message.base.utils.StringUtils;

import com.message.base.utils.ValidateUtils;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import javax.mail.*;

import javax.mail.internet.InternetAddress;

import javax.mail.internet.MimeMessage;

import java.util.Collections;

import java.util.Date;

import java.util.List;

import java.util.Properties;

/**

* 发送邮件服务器.

*

* @author sunhao(sunhao.java@gmail.com)

* @version V1.0, 13-3-25 上午6:19

*/

public class EmailServer {

private static final Logger logger = LoggerFactory.getLogger(EmailServer.class);

//spring中配置

/**邮箱服务器配置**/

private List config;

/**是否开启debug调试模式**/

private boolean isDebug = false;

/**是否启用身份验证**/

private boolean isAuth = true;

/**验证类型**/

private String authType = "auth";

/**

* 私有化默认构造器,使外部不可实例化

*/

private EmailServer(){}

/**

* 单例,保证上下文中只有一个EmailServer

*

* @return EmailServer

*/

public static EmailServer getInstance(){

return ApplicationHelper.getInstance().getBean(EmailServer.class);

}

/**

* 发送普通邮件(单个接收人)

*

* @param username 发件人用户名

* @param password 发件人密码

* @param title 邮件标题

* @param content 邮件正文

* @param receiver 单个接收人

* @return

*/

public boolean sendTextMail(String username, String password, String title, String content, String receiver){

return this.sendTextMail(username, password, title, content, Collections.singletonList(receiver));

}

/**

* 发送普通邮件(多个接收人)

*

* @param username 发件人用户名

* @param password 发件人密码

* @param title 邮件标题

* @param content 邮件正文

* @param receivers 多个接收人

* @return

*/

public boolean sendTextMail(String username, String password, String title, String content, List receivers){

Authentication auth = null;

if(this.isAuth()){

//如果需要身份认证，则创建一个密码验证器

auth = new Authentication(username, password);

}

Properties props = new Properties();

props.setProperty("mail.smtp.auth", this.isAuth() ? "true" : "false");

props.setProperty("mail.transport.protocol", "auth");

EmailConfig config = this.getEmailConfig(username);

props.setProperty("mail.smtp.host", config.getSmtp());

props.setProperty("mail.smtp.port", config.getPort() + "");

// 根据邮件会话属性和密码验证器构造一个发送邮件的session

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

session.setDebug(this.isDebug);

Message message = this.makeTextMail(session, title, content, username, receivers, false);

try {

Transport.send(message);

return true;

} catch (MessagingException e) {

logger.error(e.getMessage(), e);

return false;

}

}

/**

* 发送HTML邮件(单个接收人)

*

* @param username 发件人用户名

* @param password 发件人密码

* @param title 邮件标题

* @param content 邮件正文

* @param receiver 单个接收人

* @return

*/

public boolean sendHtmlMail(String username, String password, String title, String content, String receiver){

return this.sendHtmlMail(username, password, title, content, Collections.singletonList(receiver));

}

/**

* 发送HTML邮件(多个接收人)

*

* @param username 发件人用户名

* @param password 发件人密码

* @param title 邮件标题

* @param content 邮件正文

* @param receivers 多个接收人

* @return

*/

public boolean sendHtmlMail(String username, String password, String title, String content, List receivers){

Authentication auth = null;

if(this.isAuth()){

//如果需要身份认证，则创建一个密码验证器

auth = new Authentication(username, password);

}

Properties props = new Properties();

props.setProperty("mail.smtp.auth", this.isAuth() ? "true" : "false");

props.setProperty("mail.transport.protocol", "auth");

EmailConfig config = this.getEmailConfig(username);

props.setProperty("mail.smtp.host", config.getSmtp());

props.setProperty("mail.smtp.port", config.getPort() + "");

// 根据邮件会话属性和密码验证器构造一个发送邮件的session

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

session.setDebug(this.isDebug);

Message message = this.makeTextMail(session, title, content, username, receivers, true);

try {

Transport.send(message);

return true;

} catch (MessagingException e) {

logger.error(e.getMessage(), e);

return false;

}

}

/**

* 获取邮件服务器配置

*

* @param email 邮箱地址

* @return

*/

private EmailConfig getEmailConfig(String email){

String mailServiceDomainName = this.getMailServiceDomainName(email);

for(EmailConfig config : this.config) {

if(config.getName().equals(mailServiceDomainName)){

return config;

}

}

return null;

}

/**

* 创建邮件message

*

* @param session 根据配置获得的session

* @param title 邮件主题

* @param content 邮件的内容

* @param from 发件者

* @param receivers 收件者

* @param isHtmlMail 是否是html邮件

*/

private Message makeTextMail(Session session, String title, String content, String from, List receivers, boolean isHtmlMail){

Message message = new MimeMessage(session);

try {

/**标题**/

logger.info("this mail's title is {}", title);

message.setSubject(title);

/**内容**/

logger.info("this mail's content is {}", content);

if(isHtmlMail){

//是html邮件

message.setContent(content, "text/html;charset=utf-8");

} else {

//普通邮件

message.setText(content);

}

/**发件者地址**/

logger.info("this mail's sender is {}", from);

Address fromAddress = new InternetAddress(from);

message.setFrom(fromAddress);

/**接收者地址**/

Address[] tos = new InternetAddress[receivers.size()];

for(int i = 0; i < receivers.size(); i++){

String receiver = receivers.get(i);

if(ValidateUtils.isEmail(receiver)){

tos[i] = new InternetAddress(receiver);

}

}

/**发件时间**/

message.setSentDate(new Date());

message.setRecipients(Message.RecipientType.TO, tos);

} catch (MessagingException e) {

logger.error(e.getMessage(), e);

e.printStackTrace();

}

return message;

}

/**

* 获取邮箱域名

*

* @param email 邮箱

* @return

*/

private String getMailServiceDomainName(String email){

if(StringUtils.isEmpty(email)){

return "";

} else {

int firstIndex = StringUtils.indexOf(email, "@");

int secondIndex = StringUtils.lastIndexOf(email, ".");

return StringUtils.substring(email, firstIndex + 1, secondIndex);

}

}

public List getConfig() {

return config;

}

public void setConfig(List config) {

this.config = config;

}

public boolean isDebug() {

return isDebug;

}

public void setDebug(boolean debug) {

isDebug = debug;

}

public boolean isAuth() {

return isAuth;

}

public void setAuth(boolean auth) {

isAuth = auth;

}

public String getAuthType() {

return authType;

}

public void setAuthType(String authType) {

this.authType = authType;

}

}

调用方式如下

public boolean sendMail() throws Exception {

List receivers = new ArrayList();

receivers.add("sunhao0550@163.com");

receivers.add("sunhao0550@sina.cn");

EmailServer.getInstance().sendHtmlMail("message_admin@163.com", "这里是密码", "测试发送HTML邮件",

"测试发送HTML邮件链接到百度", receivers);

return EmailServer.getInstance().sendTextMail("message_admin@163.com", "这里是密码", "测试发送文本邮件",

"测试发送文本邮件测试发送文本邮件测试发送文本邮件", receivers);

}

PS:正在考虑扩展,如果把这几个类封在jar包中,如何进行邮件服务器配置的扩展.

如有不好之处,欢迎拍砖.

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