第一個類：MailSenderInfo.java?

package?com.util.mail;???
/**???
*?發(fā)送郵件需要使用的基本信息?
*author?by?wangfun
http://www.5a520.cn?小說520??
*/????
import?java.util.Properties;????
public?class?MailSenderInfo?{????
????//?發(fā)送郵件的服務器的IP和端口????
????private?String?mailServerHost;????
????private?String?mailServerPort?=?"25";????
????//?郵件發(fā)送者的地址????
????private?String?fromAddress;????
????//?郵件接收者的地址????
????private?String?toAddress;????
????//?登陸郵件發(fā)送服務器的用戶名和密碼????
????private?String?userName;????
????private?String?password;????
????//?是否需要身份驗證????
????private?boolean?validate?=?false;????
????//?郵件主題????
????private?String?subject;????
????//?郵件的文本內容????
????private?String?content;????
????//?郵件附件的文件名????
????private?String[]?attachFileNames;??????
????/**???
??????*?獲得郵件會話屬性???
??????*/????
????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;????
????}????
}???

第二個類：SimpleMailSender.java

package?com.util.mail;???
??
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;????
??
/**???
*?簡單郵件（不帶附件的郵件）發(fā)送器???
http://www.bt285.cn?BT下載
*/????
public?class?SimpleMailSender??{????
/**???
??*?以文本格式發(fā)送郵件???
??*?@param?mailInfo?待發(fā)送的郵件的信息???
??*/????
????public?boolean?sendTextMail(MailSenderInfo?mailInfo)?{????
??????//?判斷是否需要身份認證????
??????MyAuthenticator?authenticator?=?null;????
??????Properties?pro?=?mailInfo.getProperties();???
??????if?(mailInfo.isValidate())?{????
??????//?如果需要身份認證，則創(chuàng)建一個密碼驗證器????
????????authenticator?=?new?MyAuthenticator(mailInfo.getUserName(),?mailInfo.getPassword());????
??????}???
??????//?根據郵件會話屬性和密碼驗證器構造一個發(fā)送郵件的session????
??????Session?sendMailSession?=?Session.getDefaultInstance(pro,authenticator);????
??????try?{????
??????//?根據session創(chuàng)建一個郵件消息????
??????Message?mailMessage?=?new?MimeMessage(sendMailSession);????
??????//?創(chuàng)建郵件發(fā)送者地址????
??????Address?from?=?new?InternetAddress(mailInfo.getFromAddress());????
??????//?設置郵件消息的發(fā)送者????
??????mailMessage.setFrom(from);????
??????//?創(chuàng)建郵件的接收者地址，并設置到郵件消息中????
??????Address?to?=?new?InternetAddress(mailInfo.getToAddress());????
??????mailMessage.setRecipient(Message.RecipientType.TO,to);????
??????//?設置郵件消息的主題????
??????mailMessage.setSubject(mailInfo.getSubject());????
??????//?設置郵件消息發(fā)送的時間????
??????mailMessage.setSentDate(new?Date());????
??????//?設置郵件消息的主要內容????
??????String?mailContent?=?mailInfo.getContent();????
??????mailMessage.setText(mailContent);????
??????//?發(fā)送郵件????
??????Transport.send(mailMessage);???
??????return?true;????
??????}?catch?(MessagingException?ex)?{????
??????????ex.printStackTrace();????
??????}????
??????return?false;????
????}????
???????
????/**???
??????*?以HTML格式發(fā)送郵件???
??????*?@param?mailInfo?待發(fā)送的郵件信息???
??????*/????
????public?static?boolean?sendHtmlMail(MailSenderInfo?mailInfo){????
??????//?判斷是否需要身份認證????
??????MyAuthenticator?authenticator?=?null;???
??????Properties?pro?=?mailInfo.getProperties();???
??????//如果需要身份認證，則創(chuàng)建一個密碼驗證器?????
??????if?(mailInfo.isValidate())?{????
????????authenticator?=?new?MyAuthenticator(mailInfo.getUserName(),?mailInfo.getPassword());???
??????}????
??????//?根據郵件會話屬性和密碼驗證器構造一個發(fā)送郵件的session????
??????Session?sendMailSession?=?Session.getDefaultInstance(pro,authenticator);????
??????try?{????
??????//?根據session創(chuàng)建一個郵件消息????
??????Message?mailMessage?=?new?MimeMessage(sendMailSession);????
??????//?創(chuàng)建郵件發(fā)送者地址????
??????Address?from?=?new?InternetAddress(mailInfo.getFromAddress());????
??????//?設置郵件消息的發(fā)送者????
??????mailMessage.setFrom(from);????
??????//?創(chuàng)建郵件的接收者地址，并設置到郵件消息中????
??????Address?to?=?new?InternetAddress(mailInfo.getToAddress());????
??????//?Message.RecipientType.TO屬性表示接收者的類型為TO????
??????mailMessage.setRecipient(Message.RecipientType.TO,to);????
??????//?設置郵件消息的主題????
??????mailMessage.setSubject(mailInfo.getSubject());????
??????//?設置郵件消息發(fā)送的時間????
??????mailMessage.setSentDate(new?Date());????
??????//?MiniMultipart類是一個容器類，包含MimeBodyPart類型的對象????
??????Multipart?mainPart?=?new?MimeMultipart();????
??????//?創(chuàng)建一個包含HTML內容的MimeBodyPart????
??????BodyPart?html?=?new?MimeBodyPart();????
??????//?設置HTML內容????
??????html.setContent(mailInfo.getContent(),?"text/html;?charset=utf-8");????
??????mainPart.addBodyPart(html);????
??????//?將MiniMultipart對象設置為郵件內容????
??????mailMessage.setContent(mainPart);????
??????//?發(fā)送郵件????
??????Transport.send(mailMessage);????
??????return?true;????
??????}?catch?(MessagingException?ex)?{????
??????????ex.printStackTrace();????
??????}????
??????return?false;????
????}????
}???

第三個類：MyAuthenticator.java?

?

package?com.util.mail;???
??
import?javax.mail.*;???
?????
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);???
????}???
}???

下面給出使用上面三個類的代碼：

public?static?void?main(String[]?args){???
?????????//這個類主要是設置郵件???
??????MailSenderInfo?mailInfo?=?new?MailSenderInfo();????
??????mailInfo.setMailServerHost("smtp.163.com");????
??????mailInfo.setMailServerPort("25");????
??????mailInfo.setValidate(true);????
??????mailInfo.setUserName("han2000lei@163.com");????
??????mailInfo.setPassword("**********");//您的郵箱密碼????
??????mailInfo.setFromAddress("han2000lei@163.com");????
??????mailInfo.setToAddress("han2000lei@163.com");????
??????mailInfo.setSubject("設置郵箱標題?如http://www.guihua.org?中國桂花網");????
??????mailInfo.setContent("設置郵箱內容?如http://www.guihua.org?中國桂花網?是中國最大桂花網站==");????
?????????//這個類主要來發(fā)送郵件???
??????SimpleMailSender?sms?=?new?SimpleMailSender();???
??????????sms.sendTextMail(mailInfo);//發(fā)送文體格式????
??????????sms.sendHtmlMail(mailInfo);//發(fā)送html格式???
????}??

最后，給出朋友們幾個注意的地方：?
1、使用此代碼你可以完成你的javamail的郵件發(fā)送功能。三個類缺一不可。?
2、這三個類我打包是用的com.util.mail包，如果不喜歡，你可以自己改，但三個類文件必須在同一個包中?
3、不要使用你剛剛注冊過的郵箱在程序中發(fā)郵件，如果你的163郵箱是剛注冊不久，那你就不要使用“smtp.163.com”。因為你發(fā)不出去。剛注冊的郵箱是不會給你這種權限的，也就是你不能通過驗證。要使用你經常用的郵箱，而且時間比較長的。?
4、另一個問題就是mailInfo.setMailServerHost("smtp.163.com");與mailInfo.setFromAddress("han2000lei@163.com");這兩句話。即如果你使用163smtp服務器，那么發(fā)送郵件地址就必須用163的郵箱，如果不的話，是不會發(fā)送成功的。?
5、關于javamail驗證錯誤的問題，網上的解釋有很多，但我看見的只有一個。就是我的第三個類。你只要復制全了代碼，我想是不會有問題的。

轉載于:https://www.cnblogs.com/zlzlzl1993/p/3397537.html

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