使用javamail发送邮件
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在java web项目我们经常会使用到发送邮件,比如发送告警通知,对实时性要求不太高的项目就可以发邮件,毕竟是免费的嘛,这里写了几段java发送邮件的代码,参考http://www.iteye.com/topic/352753,自己又改了一下,比如发送附件,多个抄送人等。
依赖jar包:mail-1.4.jar
1、MailSenderInfo邮件信息类
package com.chen.util;import java.util.Properties;/** * 邮件信息 * */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; // 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; /** *//** * 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; } 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; }}
2、MyAuthenticator 该类发送邮件是鉴权用,继承Authenticator
package com.chen.util;import javax.mail.Authenticator;import javax.mail.PasswordAuthentication;/** * 该类发送邮件是鉴权用 * 继承Authenticator * * */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); } }
3、MailUtil 发送邮件工具类
package com.chen.util;import java.util.Date;import javax.activation.DataHandler;import javax.activation.FileDataSource;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;import javax.mail.internet.MimeUtility;public class MailUtil {//protected static final String serverHost=PropertiesUtil.getPropertiesByKey("prop.properties", "ServerHost");protected static final String serverHost="smtp.qq.com";protected static final String serverPort = "25";protected static final String userName = "******@qq.com";protected static final String password = "********";/** * 发送邮件给多个抄送人 * */public static boolean sendMailtoMultiCC(MailSenderInfo mailInfo){ MyAuthenticator authenticator = null; if (mailInfo.isValidate()) { authenticator = new MyAuthenticator(mailInfo.getUserName(), mailInfo.getPassword()); } Session sendMailSession = Session.getInstance(mailInfo.getProperties(), authenticator); //sendMailSession.setDebug(true); try { //创建邮件 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<ccs.length; 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=UTF-8"); //添加附件 String[] fileName = mailInfo.getAttachFileNames(); if(fileName != null) { for(int i=0;i<fileName.length;i++) { BodyPart bodyPart = new MimeBodyPart(); DataHandler dh = new DataHandler(new FileDataSource(fileName[i])); bodyPart.setDataHandler(dh); //防止附件名中文乱码 bodyPart.setFileName(MimeUtility.encodeText(dh.getName())); mainPart.addBodyPart(bodyPart); } } mainPart.addBodyPart(html); mailMessage.setContent(mainPart); // 发送邮件 Transport.send(mailMessage); return true; } catch (Exception ex) { ex.printStackTrace(); } return false; }//发送简单邮件public static void main(String [] args) throws MessagingException{ MailSenderInfo mailInfo = new MailSenderInfo(); mailInfo.setMailServerHost(serverHost); mailInfo.setMailServerPort(serverPort); mailInfo.setValidate(true); mailInfo.setUserName(userName); mailInfo.setPassword(password); mailInfo.setFromAddress(userName); mailInfo.setToAddress("**************@qq.com"); mailInfo.setSubject("我是主题"); mailInfo.setContent("我是内容"); String tos = "*******,*********"; if(!tos.equals("")){ String[] receivers = tos.split(","); String[] ccs = receivers; mailInfo.setReceivers(receivers);//多个接收人 mailInfo.setCcs(ccs);//多个抄送人 } String fileName = "C:\\Users\\Administrator\\Desktop\\******.png,C:\\Users\\Administrator\\Desktop\\*********.sql"; if(!fileName.equals("")) { String [] fileNames = fileName.split(","); mailInfo.setAttachFileNames(fileNames); } sendMailtoMultiCC(mailInfo);//发送多个抄送人}}
使用方法可以参考第3个类MailUtil的main方法里调用发送邮件的方法sendMailtoMultiCC,可以抄送给多人,可以发送多个附件。
借鉴了han2000lei博客,增加了多个抄送人和附件,如有兴趣可以移步。
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