JavaMail邮件学习01之发送简单邮件

         早就想系统学习一下邮件的相关知识了，因为各种原因，一直拖到现在才从传智博客上下载了张老师的视频来看看学习。为了方便以后查阅，自己动手写了个例子记录下。

       视频中张老师对邮件的相关基础理论讲得比较透彻，通俗易懂了，在这我也不写那些理论了。写这博文主要是方便以后直接看例子，唤醒这方面相关的知识点而已。

       项目中使用的是官网上最新的java-mail.jar,JDK7。 java-mail.jar下载的官网：http://www.oracle.com/technetwork/java/index-138643.html。

     注意：官网上说了，如果JDK版本低于JDK6的话，使用java-mail.jar时，还需要jaf.jar；如果是JDK6或更新版本就不需要了，因为JDK6以上已经拥有jaf.jar了。

  简单文本邮件信息类

 SimpleMailInfo.java

package com.fei;

public class SimpleMailInfo {

/**
 * 发送方的smtp服务器名称
 */
private String host ;
/**
 * 发送方的smtp服务器端口
 */
private String port;
/**
 * 发送人的邮箱登录名
 */
    private String loginName ;
    /**
     * 发送人的邮箱登录密码
     */
    private String password;
    /**
     * 邮件的标题
     */
    private String title;
    /**
     * 邮件的内容
     */
    private String content;
    /**
     * 发件人邮箱地址
     */
    private String fromAddress;
    /**
     * 接收人的邮箱地址
     */
    private String toAddress;

    public SimpleMailInfo() {

}

public SimpleMailInfo(String host, String port, String loginName,
String password, String title, String content, String fromAddress,
String toAddress) {
super();
this.host = host;
this.port = port;
this.loginName = loginName;
this.password = password;
this.title = title;
this.content = content;
this.fromAddress = fromAddress;
this.toAddress = toAddress;
}

public String getHost() {
return host;
}

public void setHost(String host) {
this.host = host;
}

public String getPort() {
return port;
}

public void setPort(String port) {
this.port = port;
}

public String getLoginName() {
return loginName;
}

public void setLoginName(String loginName) {
this.loginName = loginName;
}

public String getPassword() {
return password;
}

public void setPassword(String password) {
this.password = password;
}

public String getTitle() {
return title;
}

public void setTitle(String title) {
this.title = title;
}

public String getContent() {
return content;
}

public void setContent(String content) {
this.content = content;
}

public String getFromAddress() {
return fromAddress;
}

public void setFromAddress(String fromAddress) {
this.fromAddress = fromAddress;
}

public String getToAddress() {
return toAddress;
}

public void setToAddress(String toAddress) {
this.toAddress = toAddress;
}


}

邮件发送帮助类

MailSenderHelper.java

package com.fei;

import java.util.Properties;

import javax.mail.Message;
import javax.mail.Message.RecipientType;
import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

public class MailSenderHelper {

/**
 * 邮件内容以纯文本显示
 */
public static void sendTextMail(SimpleMailInfo simpleInfo)throws Exception{
//构建Session环境
Properties properties = new Properties();
properties.setProperty("mail.smtp.host", simpleInfo.getHost());
properties.setProperty("mail.smtp.port", simpleInfo.getPort());
properties.setProperty("mail.transport.protocol", "smtp");
properties.setProperty("mail.smtp.auth", "true");
Session session = Session.getInstance(properties);
session.setDebug(true);//为了在控制台看到输出详细的发送过程中的信息

//构建Message邮件
Message message =new  MimeMessage(session);
message.setSubject(simpleInfo.getTitle());//标题
message.setText(simpleInfo.getContent());//内容
message.setFrom(new InternetAddress(simpleInfo.getFromAddress()));//发件人地址
message.setRecipient(RecipientType.TO, new InternetAddress(simpleInfo.getToAddress()));

//构建Transport，连接smtp服务器，并发送邮件
Transport transport = session.getTransport();
transport.connect(simpleInfo.getLoginName(), simpleInfo.getPassword());
transport.sendMessage(message, message.getAllRecipients());
transport.close();
}

/**
 * 邮件内容用HTML解析后才显示
 */
public static void sendHtmlMail(final SimpleMailInfo simpleInfo)throws Exception{
//构建Session环境
Properties properties = new Properties();
properties.setProperty("mail.smtp.host", simpleInfo.getHost());
properties.setProperty("mail.smtp.port", simpleInfo.getPort());
properties.setProperty("mail.transport.protocol", "smtp");
properties.setProperty("mail.smtp.auth", "true");
Session session = Session.getInstance(properties,new Authenticator() {
protected PasswordAuthentication getPasswordAuthentication(){
return new PasswordAuthentication(simpleInfo.getLoginName(),simpleInfo.getPassword());
}
});
session.setDebug(true);//为了在控制台看到输出详细的发送过程中的信息

//构建Message邮件
Message message =new  MimeMessage(session);
message.setSubject(simpleInfo.getTitle());//标题
message.setContent(simpleInfo.getContent(), "text/html;charset=GBK");
message.setFrom(new InternetAddress(simpleInfo.getFromAddress()));//发件人地址
message.setRecipient(RecipientType.TO, new InternetAddress(simpleInfo.getToAddress()));

//构建Transport发送
Transport.send(message);
}
}

发送邮件测试类

SendSimpleMailTest.java

package com.fei;


/**
 * 学习如何发送一封简单文本邮件
 *
 *发送方：[e-mail]
 *接收方：[e-mail]
 *
 */
public class SendSimpleMailTest {


public static void main(String[] args) {
sendText();
sendHtml();
}

private static void sendText(){
SimpleMailInfo mailInfo = new SimpleMailInfo();

mailInfo.setHost("smtp.163.com");
mailInfo.setPort("25");
mailInfo.setLoginName("[e-mail]");
mailInfo.setPassword("****");

mailInfo.setTitle("今晚不见不散");
mailInfo.setContent("美女，今晚老地方，老时间，不见不散哦");

//这里不需要和登录人的邮箱地址一样，可以写别人的邮箱地址，冒充别人
mailInfo.setFromAddress("[e-mail]");
mailInfo.setToAddress("[e-mail]");

try {
MailSenderHelper.sendTextMail(mailInfo);
} catch (Exception e) {
e.printStackTrace();
}
}

private static void sendHtml(){
SimpleMailInfo mailInfo = new SimpleMailInfo();

mailInfo.setHost("smtp.163.com");
mailInfo.setPort("25");
mailInfo.setLoginName("[e-mail]");
mailInfo.setPassword("***");

mailInfo.setTitle("我们约会吧");
mailInfo.setContent("<span style='color:red'>美女，今晚老地方，老时间，不见不散哦</span>");

//这里不需要和登录人的邮箱地址一样，可以写别人的邮箱地址，冒充别人
mailInfo.setFromAddress("[e-mail]");
mailInfo.setToAddress("[e-mail]");

try {
MailSenderHelper.sendHtmlMail(mailInfo);
} catch (Exception e) {
e.printStackTrace();
}
}
}

运行后，控制台的部分信息：

DEBUG: setDebug: JavaMail version 1.4.7
DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Oracle]
DEBUG SMTP: useEhlo true, useAuth true
DEBUG SMTP: trying to connect to host "smtp.163.com", port 25, isSSL false
220 gz-c-163smtp2.163.com SMTP Server for Netease [466] 9e06c2ef-c598-4e3a-b075-e2a2f184cbae
DEBUG SMTP: connected to host "smtp.163.com", port: 25

EHLO Jfwei
250-gz-c-163smtp2.163.com
250-mail
250-PIPELINING
250-8BITMIME
250-AUTH LOGIN PLAIN
250-AUTH=LOGIN PLAIN
250 STARTTLS 9e06c2ef-c598-4e3a-b075-e2a2f184cbae
DEBUG SMTP: Found extension "mail", arg ""
DEBUG SMTP: Found extension "PIPELINING", arg ""
DEBUG SMTP: Found extension "8BITMIME", arg ""
DEBUG SMTP: Found extension "AUTH", arg "LOGIN PLAIN"
DEBUG SMTP: Found extension "AUTH=LOGIN", arg "PLAIN"
DEBUG SMTP: Found extension "STARTTLS", arg "9e06c2ef-c598-4e3a-b075-e2a2f184cbae"
DEBUG SMTP: Attempt to authenticate using mechanisms: LOGIN PLAIN DIGEST-MD5 NTLM 
DEBUG SMTP: AUTH LOGIN command trace suppressed
DEBUG SMTP: AUTH LOGIN succeeded
DEBUG SMTP: use8bit false
MAIL FROM:<[e-mail]>
250 2.0.0 OK 9e06c2ef-c598-4e3a-b075-e2a2f184cbae
RCPT TO:<[e-mail]>
250 2.0.0 OK 9e06c2ef-c598-4e3a-b075-e2a2f184cbae
DEBUG SMTP: Verified Addresses
DEBUG SMTP:   [e-mail]
DATA
354 Start mail input; end with <CRLF>.<CRLF> 9e06c2ef-c598-4e3a-b075-e2a2f184cbae
From: [e-mail]
To: [e-mail]
Message-ID: <8713574.0.1405157151272.JavaMail.Administrator@Jfwei>
Subject: =?GBK?B?vfHN7bK7vPuyu8mi?=
MIME-Version: 1.0
Content-Type: text/plain; charset=GBK
Content-Transfer-Encoding: base64

w8DFrqOsvfHN7cDPtdi3vaOswM/Ksbzko6yyu7z7srvJosW2
.
250 2.0.0 OK 9e06c2ef-c598-4e3a-b075-e2a2f184cbae
QUIT
221 2.0.0 Bye 9e06c2ef-c598-4e3a-b075-e2a2f184cbae

如果懂如何在DOS下发送邮件的话，那么对上面控制台输出的信息也就能看懂了。呵呵。

我们再来看看，qq邮箱中，是否收到邮件了。

text纯文本显示模式的邮件

html模式发送的