JavaMail 发送邮件系列(一)：发送基本邮件

使用JavaMail API发送邮件，大概分为三个类：MyAuthenticator---密码认证器，MailSendInfo--邮件发送消息集合，MailSendUtils--邮件发送消息注入执行

Maven依赖

<dependency >
<groupId > javax.mail </ groupId >
<artifactId > mail </ artifactId >
<version > 1.4.5 </ version >
</dependency >
<dependency >
<groupId > com.sun.mail </ groupId >
<artifactId > javax.mail </ artifactId >
<version > 1.5.4 </ version >
</dependency >

MyAuthenticator

import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;

public class MyAuthenticator extends Authenticator {
private String userName = null;
private 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);
}
}

MailSendInfo

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;
// 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;
// 邮件接收者的地址
private String[] toAddress;

/**
* 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[] getToAddress() {
return toAddress;
}

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

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 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 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;
}
}

MailSendUtils

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;

public class MailSendUtils {
private MailSenderInfo mailInfo = new MailSenderInfo();

public MailSendUtils(String subject, String message,String toAddress) {
mailInfo.setMailServerHost("smtp.163.com");
mailInfo.setMailServerPort("25");
mailInfo.setValidate(true);
mailInfo.setUserName("lweemooaiz.4r@163.com");
mailInfo.setPassword("willsmith228");
mailInfo.setFromAddress("lweemooaiz.4r@163.com");
mailInfo.setToAddress(new String[]{toAddress});
mailInfo.setSubject(subject);
mailInfo.setContent(message);
}

/**
* 以TEXT格式发送邮件
*
*/
public boolean sendTextMail() {
// 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
String[] ToAddresses = mailInfo.getToAddress();
Address[] addressList = new InternetAddress[ToAddresses.length];
for (int i = 0; i < ToAddresses.length; i++) {
addressList[i] = new InternetAddress(ToAddresses[i]);
}
// Message.RecipientType.TO属性表示接收者的类型为TO
mailMessage.setRecipients(Message.RecipientType.TO, addressList);
// 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;
}

/**
* 以HTML格式发送邮件
*
*/
public boolean sendHtmlMail() {
// 判断是否需要身份认证
MyAuthenticator authenticator = null;
Properties pro = mailInfo.getProperties();
// 如果需要身份认证，则创建一个密码验证器
if (mailInfo.isValidate()) {
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
String[] ToAddresses = mailInfo.getToAddress();
Address[] addressList = new InternetAddress[ToAddresses.length];
for (int i = 0; i < ToAddresses.length; i++) {
addressList[i] = new InternetAddress(ToAddresses[i]);
}
// Message.RecipientType.TO属性表示接收者的类型为TO
mailMessage.setRecipients(Message.RecipientType.TO, addressList);
// 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());
// MiniMultipart类是一个容器类，包含MimeBodyPart类型的对象
Multipart mainPart = new MimeMultipart();
// 创建一个包含HTML内容的MimeBodyPart
BodyPart html = new MimeBodyPart();
// 设置HTML内容
html.setContent(mailInfo.getContent(), "text/html; charset=utf-8");
mainPart.addBodyPart(html);
// 将MiniMultipart对象设置为邮件内容
mailMessage.setContent(mainPart);
// 发送邮件
Transport.send(mailMessage);
return true;
} catch (MessagingException ex) {
ex.printStackTrace();
}
return false;
}
}

MailTest

public class MailTest {

public static void main(String[] args) {
MailSendUtils sms = new MailSendUtils("this is title", "this is content", "1813110015@qq.com");
System.out.println(sms.sendTextMail());
}

}

pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion>

<groupId>com.cnooc.commons</groupId>
<artifactId>CPURecordMonitor</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

<name>CPURecordMonitor</name>
<url>http://maven.apache.org</url>

<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>

<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.7</version>
<scope>test</scope>
</dependency>

<dependency >
<groupId >javax.mail </groupId >
<artifactId >mail </artifactId >
<version >1.4.5 </version >
</dependency >
<dependency >
<groupId >com.sun.mail </groupId >
<artifactId >javax.mail </artifactId >
<version >1.5.4 </version >
</dependency >
</dependencies >

<build >
<finalName >CPURecordMonitor </finalName >
<plugins >
<plugin >
<groupId >org.apache.maven.plugins </groupId >
<artifactId >maven-compiler-plugin</artifactId >
<configuration >
<source >1.7 </source >
<target >1.7 </target >
</configuration >
</plugin >
</plugins >
</build >

</project>

中途遇到两个错误

java.lang.NoClassDefFoundError: com/sun/mail/util/MailLogger

java.lang.NoClassDefFoundError: javax/mail/MessagingException

解决方案参考：

/article/8744499.html

Demon下载：http://download.csdn.net/detail/u013361445/9246365

建议下载完毕后自己敲一遍代码，有助于理解。