java发送邮件
java发送邮件
项目需要用到发送邮件这个功能，百度一大堆代码，只能看不能用，让人看着很着急，下面简单介绍一下java用qq发送邮件的方法。。
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以下代码糅合了百度上面找的大神发的代码，借鉴，谢谢。。
JAVA邮件发送的大致过程是这样的的：
1、构建一个继承自javax.mail.Authenticator的具体类，并重写里面的getPasswordAuthentication()方法。此类是用作登录校验的，以确保你对该邮箱有发送邮件的权利。
2、构建一个properties文件，该文件中存放SMTP服务器地址等参数。
3、通过构建的properties文件和javax.mail.Authenticator具体类来创建一个javax.mail.Session。Session的创建，就相当于登录邮箱一样。剩下的自然就是新建邮件。
4、构建邮件内容，一般是javax.mail.internet.MimeMessage对象，并指定发送人，收信人，主题，内容等等。
5、使用javax.mail.Transport工具类发送邮件。
下面是通过spring发送邮件的方法
1.首先需要一个不常用的qq做测试，将qq邮箱里面的
POP3/IMAP/SMTP/Exchange/CardDAV/CalDAV服务 开启
步骤：
QQ邮箱 --> 邮箱设置 --> 账户 --> POP3/IMAP/SMTP/Exchange/CardDAV/CalDAV服务
图一：
图二：
图三：
图四：
如此qq邮箱的设计便设置好了，
以下是项目配置了
首先spring的基本jar包和邮件的jar包 --> mail.jar
项目地址待会儿我放在后面发给大家。。
spring.xml的配置文件：
true
以下是代码编写了。。
1 常规邮件发送
package com.spring.mail.demo1;
import java.util.Date;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
/**
* 常规邮件发送
* @author XiaoLan
*
*/
public class SimpleMailSender {
private JavaMailSender javaMailSender;
public JavaMailSender getJavaMailSender() {
return javaMailSender;
}
public void setJavaMailSender(JavaMailSender javaMailSender) {
this.javaMailSender = javaMailSender;
}
public void doSend(){
//邮件里面的会话对象
SimpleMailMessage smm = new SimpleMailMessage();
smm.setFrom("[email protected]"); //发件者和配置文件的username保持一致
smm.setSubject("测试....."); //主题
smm.setText("大家好啊!"); //正文
smm.setTo("[email protected]"); //收件者
smm.setSentDate(new Date()); //发送时间
javaMailSender.send(smm);
}
public static void main(String[] args) {
new Thread(){
public void run(){
}
}.start();
ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
SimpleMailSender smMailSender = (SimpleMailSender) ac.getBean("simpleMailSender");
System.out.println("运行!");
smMailSender.doSend();
}
}
package com.spring.mail.demo2;
import java.io.File;
import java.io.UnsupportedEncodingException;
import java.util.Date;
import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeUtility;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import com.spring.mail.demo1.SimpleMailSender;
/**
* 带附件的发送邮件
* @author XiaoLan
*
*/
public class AttachmentSender {
private JavaMailSender javaMailSender;
public JavaMailSender getJavaMailSender() {
return javaMailSender;
}
public void setJavaMailSender(JavaMailSender javaMailSender) {
this.javaMailSender = javaMailSender;
}
public void doSend() throws MessagingException, UnsupportedEncodingException{
MimeMessage mm = javaMailSender.createMimeMessage();
//true:表示有附件
MimeMessageHelper helper = new MimeMessageHelper(mm,true);
File file1 = new File("attachment/english.txt");
File file2 = new File("attachment/中文.txt");
//添加附件
helper.addAttachment(file1.getName(), file1);
helper.addAttachment(MimeUtility.encodeText(file2.getName()), file2);
//helper设定邮件的其他属性
helper.setFrom("[email protected]"); //发件者和配置文件的username保持一致
helper.setTo("[email protected]");
helper.setSubject("有附件没?");
helper.setText("看一哈有附件!");
helper.setSentDate(new Date());
javaMailSender.send(mm);
}
public static void main(String[] args) throws UnsupportedEncodingException, MessagingException {
/*new Thread(){
public void run(){
}
}.start();
*/
ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
AttachmentSender amSender = (AttachmentSender) ac.getBean("attachmentSender");
System.out.println("运行!");
amSender.doSend();
}
}
package com.spring.mail.demo3;
import java.io.IOException;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.ui.freemarker.FreeMarkerTemplateUtils;
import freemarker.template.Configuration;
import freemarker.template.Template;
import freemarker.template.TemplateException;
public class FreemarkerSender {
private JavaMailSender javaMailSender;
private Configuration cfg;
public JavaMailSender getJavaMailSender() {
return javaMailSender;
}
public void setJavaMailSender(JavaMailSender javaMailSender) {
this.javaMailSender = javaMailSender;
}
public Configuration getCfg() {
return cfg;
}
public void setCfg(Configuration cfg) {
this.cfg = cfg;
}
public void doSend() throws IOException, TemplateException, MessagingException{
MimeMessage mm = javaMailSender.createMimeMessage();
MimeMessageHelper helper = new MimeMessageHelper(mm);
Template template = cfg.getTemplate("template/email.html");
Map map = new HashMap();
map.put("name", "小飞");
map.put("when", "下午三点");
map.put("where", "小区门口");
String content = FreeMarkerTemplateUtils.processTemplateIntoString(template, map);
//helper设定邮件的其他属性
helper.setFrom("[email protected]"); //发件者和配置文件的username保持一致
helper.setTo("[email protected]");
helper.setSubject("啊啊啊");
//true:代表网页
helper.setText(content,true);
helper.setSentDate(new Date());
javaMailSender.send(mm);
}
public static void main(String[] args){
ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
FreemarkerSender sender = (FreemarkerSender) ac.getBean("freemarkerSender");
try {
sender.doSend();
} catch (IOException | TemplateException | MessagingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.println("运行!");
}
}
3 模板邮件（2）
package com.spring.mail.demo3;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.Date;
import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
/**
* 模板发送器
* @author XiaoLan
*
*/
public class TemplteSender {
private JavaMailSender javaMailSender;
public JavaMailSender getJavaMailSender() {
return javaMailSender;
}
public void setJavaMailSender(JavaMailSender javaMailSender) {
this.javaMailSender = javaMailSender;
}
public void doSend() throws MessagingException, IOException{
MimeMessage mm = javaMailSender.createMimeMessage();
//true:表示有附件
MimeMessageHelper helper = new MimeMessageHelper(mm);
//利用StringBuilder拼网页
StringBuilder sb = new StringBuilder();
BufferedReader br = new BufferedReader(new FileReader("template/email.html"));
while(true){
String str = br.readLine();
if (str == null) {
break;
}
sb.append(str);
}
String content = sb.toString();
//替换占位符的值
content = content.replaceAll("\\$\\{name\\}", "小飞");
content = content.replaceAll("\\$\\{when\\}", "下午三点");
content = content.replaceAll("\\$\\{where\\}", "小区门口");
//helper设定邮件的其他属性
helper.setFrom("[email protected]"); //发件者和配置文件的username保持一致
helper.setTo("[email protected]");
helper.setSubject("啊啊啊");
//true:代表网页
helper.setText(content,true);
helper.setSentDate(new Date());
javaMailSender.send(mm);
}
public static void main(String[] args){
ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
TemplteSender sender = (TemplteSender) ac.getBean("templteSender");
try {
sender.doSend();
} catch (MessagingException | IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.println("运行!");
}
}
天天快递!
亲,你的快递到了!
${name}
,在${when}来取您的快递!
地点:${where}
package com.spring.mail.demo3;
import java.io.File;
import java.io.UnsupportedEncodingException;
import java.util.Date;
import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeUtility;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
/**
* 邮件的抄送+密送
*
* 邮件发送html信息
*/
public class HTMLSender {
private JavaMailSender javaMailSender;
public JavaMailSender getJavaMailSender() {
return javaMailSender;
}
public void setJavaMailSender(JavaMailSender javaMailSender) {
this.javaMailSender = javaMailSender;
}
public void doSender() throws MessagingException, UnsupportedEncodingException {
MimeMessage mm = javaMailSender.createMimeMessage();
// true:表示有附件
MimeMessageHelper helper = new MimeMessageHelper(mm, true);
File file1 = new File("attachment/english.txt");
File file2 = new File("attachment/中文.txt");
// 添加附件
helper.addAttachment(file1.getName(), file1);
helper.addAttachment(MimeUtility.encodeText(file2.getName()), file2);
// 利用StringBuilder拼网页
StringBuilder sb = new StringBuilder();
sb.append("");
sb.append("11111线
");
sb.append("神11111线");
// helper设定邮件的其他属性
helper.setFrom("[email protected]"); // 发件者和配置文件的username保持一致
helper.setTo("[email protected]");
//密送
helper.setBcc("[email protected]");
// 抄送
helper.setCc("[email protected]");
helper.setSubject("杀鬼情1111111况网页");
// true:代表网页
helper.setText(sb.toString(), true);
helper.setSentDate(new Date());
javaMailSender.send(mm);
}
public static void main(String[] args) {
ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
HTMLSender sender = (HTMLSender) ac.getBean("htmlSender");
try {
sender.doSender();
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (MessagingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.println("运行!");
}
}
以上就是spring发送邮件的代码
附上java发送邮件代码：
/**
* 简单邮件发送器，可单发，群发。
*
*/
public class SimpleMailSender {
/**
* 发送邮件的props文件
*/
private final transient Properties props = System.getProperties();
/**
* 邮件服务器登录验证
*/
private transient MailAuthenticator authenticator;
/**
* 邮箱session
*/
private transient Session session;
/**
* 初始化邮件发送器
*
* @param smtpHostName
* SMTP邮件服务器地址
* @param username
* 发送邮件的用户名(地址)
* @param password
* 发送邮件的密码
*/
public SimpleMailSender(final String smtpHostName, final String username,
final String password) {
init(username, password, smtpHostName);
}
/**
* 初始化邮件发送器
*
* @param username
* 发送邮件的用户名(地址)，并以此解析SMTP服务器地址
* @param password
* 发送邮件的密码
*/
public SimpleMailSender(final String username, final String password) {
//通过邮箱地址解析出smtp服务器，对大多数邮箱都管用
final String smtpHostName = "smtp." + username.split("@")[1];
init(username, password, smtpHostName);
}
/**
* 初始化
*
* @param username
* 发送邮件的用户名(地址)
* @param password
* 密码
* @param smtpHostName
* SMTP主机地址
*/
private void init(String username, String password, String smtpHostName) {
// 初始化props
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.host", smtpHostName);
// 验证
authenticator = new MailAuthenticator(username, password);
// 创建session
session = Session.getInstance(props, authenticator);
}
/**
* 发送邮件
*
* @param recipient
* 收件人邮箱地址
* @param subject
* 邮件主题
* @param content
* 邮件内容
* @throws AddressException
* @throws MessagingException
*/
public void send(String recipient, String subject, Object content)
throws AddressException, MessagingException {
// 创建mime类型邮件
final MimeMessage message = new MimeMessage(session);
// 设置发信人
message.setFrom(new InternetAddress(authenticator.getUsername()));
// 设置收件人
message.setRecipient(RecipientType.TO, new InternetAddress(recipient));
// 设置主题
message.setSubject(subject);
// 设置邮件内容
message.setContent(content.toString(), "text/html;charset=utf-8");
// 发送
Transport.send(message);
}
/**
* 群发邮件
*
* @param recipients
* 收件人们
* @param subject
* 主题
* @param content
* 内容
* @throws AddressException
* @throws MessagingException
*/
public void send(List recipients, String subject, Object content)
throws AddressException, MessagingException {
// 创建mime类型邮件
final MimeMessage message = new MimeMessage(session);
// 设置发信人
message.setFrom(new InternetAddress(authenticator.getUsername()));
// 设置收件人们
final int num = recipients.size();
InternetAddress[] addresses = new InternetAddress[num];
for (int i = 0; i < num; i++) {
addresses[i] = new InternetAddress(recipients.get(i));
}
message.setRecipients(RecipientType.TO, addresses);
// 设置主题
message.setSubject(subject);
// 设置邮件内容
message.setContent(content.toString(), "text/html;charset=utf-8");
// 发送
Transport.send(message);
}
/**
* 发送邮件
*
* @param recipient
* 收件人邮箱地址
* @param mail
* 邮件对象
* @throws AddressException
* @throws MessagingException
*/
public void send(String recipient, SimpleMail mail)
throws AddressException, MessagingException {
send(recipient, mail.getSubject(), mail.getContent());
}
/**
* 群发邮件
*
* @param recipients
* 收件人们
* @param mail
* 邮件对象
* @throws AddressException
* @throws MessagingException
*/
public void send(List recipients, SimpleMail mail)
throws AddressException, MessagingException {
send(recipients, mail.getSubject(), mail.getContent());
}
}
调用上面的邮箱发送器，可以构建一个工厂类，工厂类可以封装创建的过程，所以通过读配置文件获取邮箱用户名，密码都会变得十分方便。下面的代码是我在写观察者模式的时候写的，只是简单演示了工厂类。
import com.mzule.dp.observer.constant.MailSenderType;
import com.mzule.simplemail.SimpleMailSender;
/**
* 发件箱工厂
*
*/
public class MailSenderFactory {
/**
* 服务邮箱
*/
private static SimpleMailSender serviceSms = null;
/**
* 获取邮箱
*
* @param type 邮箱类型
* @return 符合类型的邮箱
*/
public static SimpleMailSender getSender(MailSenderType type) {
if (type == MailSenderType.SERVICE) {
if (serviceSms == null) {
serviceSms = new SimpleMailSender("[email protected]",
"hidden");
}
return serviceSms;
}
return null;
}
}
发送邮件，还是观察者模式DEMO里面的代码
import java.util.ArrayList;
import java.util.List;
import java.util.Observable;
import java.util.Observer;
import javax.mail.MessagingException;
import javax.mail.internet.AddressException;
import com.mzule.dp.observer.constant.MailSenderType;
import com.mzule.dp.observer.factory.MailSenderFactory;
import com.mzule.dp.observer.po.Product;
import com.mzule.simplemail.SimpleMailSender;
public class ProductPriceObserver implements Observer {
@Override
public void update(Observable obj, Object arg) {
Product product = null;
if (obj instanceof Product) {
product = (Product) obj;
}
if (arg instanceof Float) {
Float price = (Float) arg;
Float decrease = product.getPrice() - price;
if (decrease > 0) {
// 发送邮件
SimpleMailSender sms = MailSenderFactory
.getSender(MailSenderType.SERVICE);
List recipients = new ArrayList();
recipients.add("[email protected]");
recipients.add("[email protected]");
try {
for (String recipient : recipients) {
sms.send(recipient, "价格变动", "您关注的物品"
+ product.getName() + "降价了，由"
+ product.getPrice() + "元降到" + price + "元，降幅达"
+ decrease + "元人民币。赶快购物吧。");
}
} catch (AddressException e) {
e.printStackTrace();
} catch (MessagingException e) {
e.printStackTrace();
}
}
}
}
}
OK
下面是离线邮箱服务器发送代码
离线邮箱服务器设置，麻烦自行百度一下，下载一个邮箱服务器，注册本地邮箱账户即可。。
附上代码：
package cn.itcast.shop.utils;
import java.util.Properties;
import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.Message.RecipientType;
import javax.mail.MessagingException;
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.MimeMessage;
/**
* 邮件发送工具类
*
*/
public class MailUitls {
/**
* 发送邮件的方法
* @param to :收件人
* @param code :激活码
*/
public static void sendMail(String to,String code){
/**
* 1.获得一个Session对象.
* 2.创建一个代表邮件的对象Message.
* 3.发送邮件Transport
*/
// 1.获得连接对象
Properties props = new Properties();
props.setProperty("mail.host", "localhost");
Session session = Session.getInstance(props, new Authenticator() {
@Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication("[email protected]", "111");
}
});
// 2.创建邮件对象:
Message message = new MimeMessage(session);
// 设置发件人:
try {
message.setFrom(new InternetAddress("[email protected]"));
// 设置收件人:
message.addRecipient(RecipientType.TO, new InternetAddress(to));
// 抄送 CC 密送BCC
// 设置标题
message.setSubject("你好");
// 设置邮件正文:
message.setContent("来自我衷心的问候！");
// 3.发送邮件:
Transport.send(message);
} catch (AddressException e) {
e.printStackTrace();
} catch (MessagingException e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
sendMail("[email protected]","11111111111111");
}
}
java发送邮件的简单demo基本就这些。。
谢谢大家。。
下面是邮件发送的demo下载。。
demo下载，导入。即可使用..
http://download.csdn.net/detail/love_xiolan/9758930