java mail 邮件发送

本文介绍了一个基于Java的密码找回功能实现方法,通过电子邮件发送用户的密码。该方法首先从请求中获取用户昵称并查找对应的用户信息,然后通过SMTP服务器向用户注册时提供的邮箱发送密码。

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action层
// 获取密码
@RequestMapping(value = "/openapi/send_pwd_to_email.json", method = {
RequestMethod.GET, RequestMethod.POST })
public void jsonSendPwdToEmail(HttpServletRequest request,
HttpServletResponse response, Model model) {
User user = userService.getUserByNick(ReqUtil.getParam(request, "nick")
.trim());
JSONObject obj = new JSONObject();
String c_email = "XXX@sina.com";
String username = "XXX";
String pwd = "XXX";
String u_email = request.getParameter("email");
try {
if (user != null) {
if (user.getEmail().equals(u_email)) {
//以下是邮箱发送服务器
String[] subString1 = c_email.split("[@]");
String serverHost = "smtp." + subString1[1];
// 这个类主要是设置邮件
MailSenderInfo mailInfo = new MailSenderInfo();
mailInfo.setMailServerHost(serverHost);
mailInfo.setMailServerPort("25");
mailInfo.setValidate(true);
mailInfo.setUserName(username);
mailInfo.setPassword(pwd);// 您的邮箱密码
mailInfo.setFromAddress(c_email);
mailInfo.setToAddress(u_email);
mailInfo.setSubject("你好,这是……白名单。");
mailInfo.setContent("你的密码是" + user.getPwd());
// 这个类主要来发送邮件
SimpleMailSender sms = new SimpleMailSender();
// 发送文体格式
if (sms.sendTextMail(mailInfo)) {
obj.put("msg", "密码已成功发到您的邮箱,请查收");
obj.put("isSuccess", true);
obj.put("result_code", "0");
} else {
obj.put("msg", "网络异常,密码发送失败");
obj.put("isSuccess", false);
obj.put("result_code", "-1");
}
} else {
obj.put("msg", "找回邮箱与注册邮箱不符");
obj.put("isSuccess", false);
obj.put("result_code", "-2");
}
} else {
obj.put("msg", "查无此人");
obj.put("isSuccess", false);
obj.put("result_code", "-3");
}
} catch (JSONException e) {
e.printStackTrace();
}
RespUtil.renderJson(response, obj.toString());
}

其他
package com.longmap.common.util;
/**
* 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;
}
}



package com.longmap.common.util;

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;

/** *//**
* 简单邮件(不带附件的邮件)发送器
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*/
public class SimpleMailSender {
/** *//**
* 以文本格式发送邮件
* @param mailInfo 待发送的邮件的信息
*/
public boolean sendTextMail(MailSenderInfo 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 to = new InternetAddress(mailInfo.getToAddress());
mailMessage.setRecipient(Message.RecipientType.TO,to);
// 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
* @param mailInfo 待发送的邮件信息
*/
public static boolean sendHtmlMail(MailSenderInfo mailInfo){
// 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
Address to = new InternetAddress(mailInfo.getToAddress());
// Message.RecipientType.TO属性表示接收者的类型为TO
mailMessage.setRecipient(Message.RecipientType.TO,to);
// 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;
}
}
/* * JCatalog Project */ package com.hexiang.utils; import java.util.List; import java.util.ArrayList; import java.util.Date; import java.util.Iterator; import java.util.Properties; import javax.mail.Session; import javax.mail.Transport; import javax.mail.Message; import javax.mail.internet.InternetAddress; import javax.mail.internet.MimeMessage; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import com.hexiang.exception.CatalogException; /** * Utility class to send email. * * @author <a href="380595305@qq.com">hexiang</a> */ public class EmailUtil { //the logger for this class private static Log logger = LogFactory.getLog("com.hexiang.util.EmailUtil"); /** * Send email to a single recipient. * * @param smtpHost the SMTP email server address * @param senderAddress the sender email address * @param senderName the sender name * @param receiverAddress the recipient email address * @param sub the subject of the email * @param msg the message content of the email */ public static void sendEmail(String smtpHost, String senderAddress, String senderName, String receiverAddress, String sub, String msg) throws CatalogException { List<String> recipients = new ArrayList<String>(); recipients.add(receiverAddress); sendEmail(smtpHost, senderAddress, senderName, recipients, sub, msg); } /** * Send email to a list of recipients. * * @param smtpHost the SMTP email server address * @param senderAddress the sender email address * @param senderName the sender name * @param recipients a list of receipients email addresses * @param sub the subject of the email * @param msg the message content of the email */ public static void sendEmail(String smtpHost, String senderAddress, String senderName, List<String> recipients, String sub, String msg) throws CatalogException { if (smtpHost == null) { String errMsg = "Could not send email: smtp host address is null"; logger.error(errMsg); throw new CatalogException(errMsg); } try { Properties props = System.getProperties(); props.put("mail.smtp.host", smtpHost); Session session = Session.getDefaultInstance(props, null ); MimeMessage message = new MimeMessage( session ); message.addHeader("Content-type", "text/plain"); message.setSubject(sub); message.setFrom(new InternetAddress(senderAddress, senderName)); for (Iterator<String> it = recipients.iterator(); it.hasNext();) { String email = (String)it.next(); message.addRecipients(Message.RecipientType.TO, email); } message.setText(msg); message.setSentDate( new Date() ); Transport.send(message); } catch (Exception e) { String errorMsg = "Could not send email"; logger.error(errorMsg, e); throw new CatalogException("errorMsg", e); } } }
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