它是Sun发布用来处理电子邮件email的API,利用JavaMail我们可以方便地执行一些常用的邮件传输功能,本文就在Android中利用JavaMail实现了email的发送。原文如下:
今天学习了一下JavaMail,JavaMail发送邮件确实是一个比较麻烦的问题不用第三方邮件程序。为了以后使用方便,自己写了段代码Javamail-Android配置步骤:
下载Android版本JavaMail包,additional.jar、mail.jar和activation.jar,下载地址JavaMail-Android
在项目与src同一目录级别下,新建文件夹lib,将下载的3个jar包放入该文件夹
右键->Properties->Java Build Path->Libraries,选择Add External JARs,找到项目下lib目录的3个jar包
我的代码有三个类:
第一个类:MailSenderInfo.java
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package
com.util.mail;
/**
* 发送邮件需要使用的基本信息
*/
import
java.util.Properties;
public
class
MailSenderInfo {
// 发送邮件的服务器的IP和端口
private
String mailServerHost;
private
String mailServerPort =
"25"
;
// 邮件发送者的地址
private
String fromAddress;
// 邮件接收者的地址
private
String toAddress;
// 登陆邮件发送服务器的用户名和密码
private
String userName;
private
String password;
// 是否需要身份验证
private
boolean
validate =
false
;
// 邮件主题
private
String subject;
// 邮件的文本内容
private
String content;
// 邮件附件的文件名
private
String[] attachFileNames;
/**
* 获得邮件会话属性
*/
public
Properties getProperties(){
Properties p =
new
Properties();
p.put(
"mail.smtp.host"
,
this
.mailServerHost);
p.put(
"mail.smtp.port"
,
this
.mailServerPort);
p.put(
"mail.smtp.auth"
, validate ?
"true"
:
"false"
);
return
p;
}
public
String getMailServerHost() {
return
mailServerHost;
}
public
void
setMailServerHost(String mailServerHost) {
this
.mailServerHost = mailServerHost;
}
public
String getMailServerPort() {
return
mailServerPort;
}
public
void
setMailServerPort(String mailServerPort) {
this
.mailServerPort = mailServerPort;
}
public
boolean
isValidate() {
return
validate;
}
public
void
setValidate(
boolean
validate) {
this
.validate = validate;
}
public
String[] getAttachFileNames() {
return
attachFileNames;
}
public
void
setAttachFileNames(String[] fileNames) {
this
.attachFileNames = fileNames;
}
public
String getFromAddress() {
return
fromAddress;
}
public
void
setFromAddress(String fromAddress) {
this
.fromAddress = fromAddress;
}
public
String getPassword() {
return
password;
}
public
void
setPassword(String password) {
this
.password = password;
}
public
String getToAddress() {
return
toAddress;
}
public
void
setToAddress(String toAddress) {
this
.toAddress = toAddress;
}
public
String getUserName() {
return
userName;
}
public
void
setUserName(String userName) {
this
.userName = userName;
}
public
String getSubject() {
return
subject;
}
public
void
setSubject(String subject) {
this
.subject = subject;
}
public
String getContent() {
return
content;
}
public
void
setContent(String textContent) {
this
.content = textContent;
}
}
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第二个类:MultiMailsender.java
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package
com.util.mail;
import
java.util.Date;
import
java.util.Properties;
import
javax.mail.Address;
import
javax.mail.BodyPart;
import
javax.mail.Message;
import
javax.mail.MessagingException;
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;
/**
* 发送邮件给多个接收者、抄送邮件
*/
public
class
MultiMailsender {
/**
* 以文本格式发送邮件
* @param mailInfo 待发送的邮件的信息
*/
public
boolean
sendTextMail(MultiMailSenderInfo mailInfo) {
// 判断是否需要身份认证
MyAuthenticator authenticator =
null
;
Properties pro = mailInfo.getProperties();
if
(mailInfo.isValidate()) {
// 如果需要身份认证,则创建一个密码验证器
authenticator =
new
MyAuthenticator(mailInfo.getUserName(), mailInfo.getPassword());
}
// 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 sendMailSession = Session.getDefaultInstance(pro,authenticator);
try
{
// 根据session创建一个邮件消息
Message mailMessage =
new
MimeMessage(sendMailSession);
// 创建邮件发送者地址
Address from =
new
InternetAddress(mailInfo.getFromAddress());
// 设置邮件消息的发送者
mailMessage.setFrom(from);
// 创建邮件的接收者地址,并设置到邮件消息中
Address[] tos =
null
;
String[] receivers = mailInfo.getReceivers();
if
(receivers !=
null
){
// 为每个邮件接收者创建一个地址
tos =
new
InternetAddress[receivers.length +
1
];
tos[
0
] =
new
InternetAddress(mailInfo.getToAddress());
for
(
int
i=
0
; i
tos[i+
1
] =
new
InternetAddress(receivers[i]);
}
}
else
{
tos =
new
InternetAddress[
1
];
tos[
0
] =
new
InternetAddress(mailInfo.getToAddress());
}
// Message.RecipientType.TO属性表示接收者的类型为TO
mailMessage.setRecipients(Message.RecipientType.TO,tos);
// 设置邮件消息的主题
mailMessage.setSubject(mailInfo.getSubject());
// 设置邮件消息发送的时间
mailMessage.setSentDate(
new
Date());
// 设置邮件消息的主要内容
String mailContent = mailInfo.getContent();
mailMessage.setText(mailContent);
// 发送邮件
Transport.send(mailMessage);
return
true
;
}
catch
(MessagingException ex) {
ex.printStackTrace();
}
return
false
;
}
/**
* 发送邮件给多个接收者,以Html内容
* @param mailInfo 带发送邮件的信息
* @return
*/
public
static
boolean
sendMailtoMultiReceiver(MultiMailSenderInfo mailInfo){
MyAuthenticator authenticator =
null
;
if
(mailInfo.isValidate()) {
authenticator =
new
MyAuthenticator(mailInfo.getUserName(),
mailInfo.getPassword());
}
Session sendMailSession = Session.getInstance(mailInfo
.getProperties(), authenticator);
try
{
Message mailMessage =
new
MimeMessage(sendMailSession);
// 创建邮件发送者地址
Address from =
new
InternetAddress(mailInfo.getFromAddress());
mailMessage.setFrom(from);
// 创建邮件的接收者地址,并设置到邮件消息中
Address[] tos =
null
;
String[] receivers = mailInfo.getReceivers();
if
(receivers !=
null
){
// 为每个邮件接收者创建一个地址
tos =
new
InternetAddress[receivers.length +
1
];
tos[
0
] =
new
InternetAddress(mailInfo.getToAddress());
for
(
int
i=
0
; i
tos[i+
1
] =
new
InternetAddress(receivers[i]);
}
}
else
{
tos =
new
InternetAddress[
1
];
tos[
0
] =
new
InternetAddress(mailInfo.getToAddress());
}
// 将所有接收者地址都添加到邮件接收者属性中
mailMessage.setRecipients(Message.RecipientType.TO, tos);
mailMessage.setSubject(mailInfo.getSubject());
mailMessage.setSentDate(
new
Date());
// 设置邮件内容
Multipart mainPart =
new
MimeMultipart();
BodyPart html =
new
MimeBodyPart();
html.setContent(mailInfo.getContent(),
"text/html; charset=GBK"
);
mainPart.addBodyPart(html);
mailMessage.setContent(mainPart);
// 发送邮件
Transport.send(mailMessage);
return
true
;
}
catch
(MessagingException ex) {
ex.printStackTrace();
}
return
false
;
}
/**
* 发送带抄送的邮件
* @param mailInfo 待发送邮件的消息
* @return
*/
public
static
boolean
sendMailtoMultiCC(MultiMailSenderInfo mailInfo){
MyAuthenticator authenticator =
null
;
if
(mailInfo.isValidate()) {
authenticator =
new
MyAuthenticator(mailInfo.getUserName(),
mailInfo.getPassword());
}
Session sendMailSession = Session.getInstance(mailInfo
.getProperties(), authenticator);
try
{
Message mailMessage =
new
MimeMessage(sendMailSession);
// 创建邮件发送者地址
Address from =
new
InternetAddress(mailInfo.getFromAddress());
mailMessage.setFrom(from);
// 创建邮件的接收者地址,并设置到邮件消息中
Address to =
new
InternetAddress(mailInfo.getToAddress());
mailMessage.setRecipient(Message.RecipientType.TO, to);
// 获取抄送者信息
String[] ccs = mailInfo.getCcs();
if
(ccs !=
null
){
// 为每个邮件接收者创建一个地址
Address[] ccAdresses =
new
InternetAddress[ccs.length];
for
(
int
i=
0
; i
ccAdresses[i] =
new
InternetAddress(ccs[i]);
}
// 将抄送者信息设置到邮件信息中,注意类型为Message.RecipientType.CC
mailMessage.setRecipients(Message.RecipientType.CC, ccAdresses);
}
mailMessage.setSubject(mailInfo.getSubject());
mailMessage.setSentDate(
new
Date());
// 设置邮件内容
Multipart mainPart =
new
MimeMultipart();
BodyPart html =
new
MimeBodyPart();
html.setContent(mailInfo.getContent(),
"text/html; charset=GBK"
);
mainPart.addBodyPart(html);
mailMessage.setContent(mainPart);
// 发送邮件
Transport.send(mailMessage);
return
true
;
}
catch
(MessagingException ex) {
ex.printStackTrace();
}
return
false
;
}
/**
* 发送多接收者类型邮件的基本信息
*/
public
static
class
MultiMailSenderInfo
extends
MailSenderInfo{
// 邮件的接收者,可以有多个
private
String[] receivers;
// 邮件的抄送者,可以有多个
private
String[] ccs;
public
String[] getCcs() {
return
ccs;
}
public
void
setCcs(String[] ccs) {
this
.ccs = ccs;
}
public
String[] getReceivers() {
return
receivers;
}
public
void
setReceivers(String[] receivers) {
this
.receivers = receivers;
}
}
}
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package
com.util.mail;
import
javax.mail.*;
public
class
MyAuthenticator
extends
Authenticator{
String userName=
null
;
String password=
null
;
public
MyAuthenticator(){
}
public
MyAuthenticator(String username, String password) {
this
.userName = username;
this
.password = password;
}
protected
PasswordAuthentication getPasswordAuthentication(){
return
new
PasswordAuthentication(userName, password);
}
}
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public
static
void
main(String[] args){
//这个类主要是设置邮件
MultiMailSenderInfo mailInfo =
new
MultiMailSenderInfo();
mailInfo.setMailServerHost(
"smtp.163.com"
);
mailInfo.setMailServerPort(
"25"
);
mailInfo.setValidate(
true
);
mailInfo.setPassword(
"**********"
);
//您的邮箱密码
mailInfo.setSubject(
"设置邮箱标题"
);
mailInfo.setContent(
"设置邮箱内容"
);
String[] receivers =
new
String[]{
"***@163.com"
,
"***@tom.com"
};
String[] ccs = receivers; mailInfo.setReceivers(receivers);
mailInfo.setCcs(ccs);
//这个类主要来发送邮件
MultiMailsender sms =
new
MultiMailsender();
sms.sendTextMail(mailInfo);
//发送文体格式
MultiMailsender.sendHtmlMail(mailInfo);
//发送html格式
MultiMailsender.sendMailtoMultiCC(mailInfo);
//发送抄送
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最后,给出朋友们几个注意的地方:
1、使用此代码你可以完成你的javamail的邮件发送功能、发多个邮箱。三个类缺一不可。
2、这三个类我打包是用的com.util.mail包,如果不喜欢,你可以自己改,但三个类文件必须在同一个包中
3、不要使用你刚刚注册过的邮箱在程序中发邮件,如果你的163邮箱是刚注册不久,那你就不要使用“smtp.163.com”。因为你发不出去。刚注册的邮箱是不会给你这种权限的,也就是你不能通过验证。要使用你经常用的邮箱,而且时间比较长的。
4、另一个问题就是mailInfo.setMailServerHost("smtp.163.com");与mailInfo.setFromAddress("[email protected]");这两句话。即如果你使用163smtp服务器,那么发送邮件地址就必须用163的邮箱,如果不的话,是不会发送成功的。
5、关于javamail验证错误的问题,网上的解释有很多,但我看见的只有一个。就是我的第三个类。你只要复制全了代码,我想是不会有问题的。
6、 然后在Android项目中添加网络访问权限