关于java发送email案例

1.先创建一个Email所用到的信息类：

package com.tan.test;import java.util.Properties;/** * 功能：邮箱信息类 * @author TanZi * @time 2015-4-20上午10:35:47 */public class MailSenderInfo {//发送邮件的服务器验证需要的信息private String mailServerHost; //服务器的IP地址private String mailServerPort; //端口号//发送者的信息private String formAddress; //发送者的地址private String userName;// 发送者的帐号private String password;//发送者的pndc//接收者private String toAddress;//接收者的地址//发送的主题private String subject;//发送的内容private String content;/** * 功能：获得邮件会话属性 * @return */public Properties getProperties(){Properties properties=new Properties();properties.put("mail.smtp.host", this.mailServerHost); //主机地址properties.put("mail.smtp.port", this.mailServerPort); //端口号properties.put("mail.smtp.auth", "true");//设置发送授权认证return properties;}//——————getter/setter——————-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 String getFormAddress() {return formAddress;}public void setFormAddress(String formAddress) {this.formAddress = formAddress;}public String getUserName() {return userName;}public void setUserName(String userName) {this.userName = userName;}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 getSubject() {return subject;}public void setSubject(String subject) {this.subject = subject;}public String getContent() {return content;}public void setContent(String content) {this.content = content;}}2.创建继承、重写认证方法package com.tan.test;import javax.mail.Authenticator;import javax.mail.PasswordAuthentication;/** * 功能：身份验证类——邮箱帐户和密码的验证 * @author TanZi * @time 2015-4-20上午10:52:17 */public class MyAuthenticator extends Authenticator{String username=null;String password=null;public MyAuthenticator(){}public MyAuthenticator(String username,String passowrd){this.username=username;this.password=passowrd;}/** * 用户名和密码验证 */public PasswordAuthentication getPasswordAuthentication(){return new PasswordAuthentication(username, password);}}3.编写发email发核心类（怎么装载数据。怎么发送）package com.tan.test;import java.util.Date;import java.util.Properties;import javax.activation.CommandMap;import javax.activation.DataHandler;import javax.activation.DataSource;import javax.activation.FileDataSource;import javax.activation.MailcapCommandMap;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.AddressException;import javax.mail.internet.InternetAddress;import javax.mail.internet.MimeBodyPart;import javax.mail.internet.MimeMessage;import javax.mail.internet.MimeMultipart;/** * 功能：邮件发送的核心类 * @author TanZi * @time 2015-4-20上午11:02:26 */public class SimleMailSender {/** * 功能：邮件发送的核心方法 * @param mailInfo 邮件信息类 * @return boolean */public boolean sendHtmlMail(MailSenderInfo mailInfo){MyAuthenticator authenticator=new MyAuthenticator(mailInfo.getUserName(),mailInfo.getPassword());//身份验证Properties properties=mailInfo.getProperties();//根据邮件会话属性和验证器构造一个发送邮件的sessionSession sendMailSession=Session.getDefaultInstance(properties, authenticator);try {//定义发送邮件的主体Message mailMessage=new MimeMessage(sendMailSession);//创建发送者的地址Address fromAddress=new InternetAddress(mailInfo.getFormAddress());//设置邮件消息的发送者mailMessage.setFrom(fromAddress);//创建接受者的地址Address toAddress=new InternetAddress(mailInfo.getToAddress());//创建邮件消息的接受者mailMessage.setRecipient(Message.RecipientType.TO, toAddress);//BCC:密送..CC:抄送.. TO:直接发送//邮件的主题mailMessage.setSubject(mailInfo.getSubject());//设置邮件发送的时间mailMessage.setSentDate(new Date());//设置邮件消息的主要内容//String mailContent=mailInfo.getContent();//创建一个容器Multipart maimPart=new MimeMultipart();//创建一个包含html内容的MimeBodyPartBodyPart html=new MimeBodyPart();//设置html的邮件内容html.setContent(mailInfo.getContent(),"text/html;charset=utf-8");maimPart.addBodyPart(html);//创建附件BodyPart attach=new MimeBodyPart();DataSource source=new FileDataSource("E:\\Code\\Movie\\images\\four.jpg");//加载要作为附件的文件attach.setDataHandler(new DataHandler(source));attach.setFileName("four.jpg");maimPart.addBodyPart(attach);//设置内容mailMessage.setContent(maimPart);//设置 发送html格式的邮件头信息MailcapCommandMap mc=(MailcapCommandMap) CommandMap.getDefaultCommandMap();mc.addMailcap("text/html;; x-java-content-handler=com.sun.mail.handlers.text_html");mc.addMailcap("text/xml;; x-java-content-handler=com.sun.mail.handlers.text_xml");mc.addMailcap("text/plain;; x-java-content-handler=com.sun.mail.handlers.text_plain");mc.addMailcap("multipart/*;; x-java-content-handler=com.sun.mail.handlers.multipart_mixed");mc.addMailcap("message/rfc822;; x-java-content-handler=com.sun.mail.handlers.message_rfc822");CommandMap.setDefaultCommandMap(mc);//发送文件Transport.send(mailMessage);return true;} catch (AddressException e) {e.printStackTrace();} catch (MessagingException e) {// TODO Auto-generated catch blocke.printStackTrace();}return false;}}4。测试类package com.tan.test;/** * 功能： * @author TanZi * @time 2015-4-20下午1:16:15 */public class TestMail {/** * 功能： * @param args */public static void main(String[] args) {MailSenderInfo mailInfo = new MailSenderInfo();System.out.println("");mailInfo.setMailServerHost("smtp.qq.com"); // 邮件服务器主机mailInfo.setMailServerPort("25"); // 服务器端口 SMTP:单单的邮件传输协议 端口：25mailInfo.setUserName("571868789"); // 发送者用户名mailInfo.setPassword("tanzi1234"); //　发送者密码mailInfo.setFormAddress("571868789@qq.com"); //发送者地址//mailInfo.setToAddress("771822044@qq.com"); // 接收者地址String toAddress = "987420817@qq.com";mailInfo.setToAddress(toAddress);String subject = "TanZi——-text"; // 主题String content = "<a href='' >"; content += "<div style='width:650px;background-color:#DBDBFF;"; content += "text-align:center;color:red;font-size:20px;border:0 solid red;'>"; content +="<b>恭喜你收到我的信息<br />"; content +="<a href=''>坛子成长记学习知识</a><br />"; content +="坛子"; content +="</b><img width='100%' src='' /></div></a>";mailInfo.setSubject(subject);mailInfo.setContent(content);SimleMailSender sms = new SimleMailSender();boolean flag = sms.sendHtmlMail(mailInfo); // 发送邮件if(flag){System.out.println("成功！");}else{System.out.println("失败！");}}}5.注意事项发送邮件错误454Authenticationfailed,pleaseopensmtpflagfirst!—-（方法）在QQ邮箱的设置里面，，找到账户-》POP3/IMAP/SMTP选择开启POP3/SMTP服务535 Authentication failed（原因）：帐号和密码错误

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