java發送mail
❶ java 發送郵件 需要哪些jar包
使用JavaMail發送郵件需要用到mail.jar和activtion.jar兩個包。
該類實現了較完整的郵件發送功能，包括以HTML格式發送，添加附件和抄送人。下面是具體的代碼：
packagecn.cgw.util.mail;
importjava.util.Properties;
importjavax.activation.DataHandler;
importjavax.activation.FileDataSource;
importjavax.mail.Address;
importjavax.mail.BodyPart;
importjavax.mail.Message;
importjavax.mail.Multipart;
importjavax.mail.Session;
importjavax.mail.Transport;
importjavax.mail.internet.InternetAddress;
importjavax.mail.internet.MimeBodyPart;
importjavax.mail.internet.MimeMessage;
importjavax.mail.internet.MimeMultipart;
publicclassMail{
privateMimeMessagemimeMsg;//MIME郵件對象
privateSessionsession;//郵件會話對象
privatePropertiesprops;//系統屬性
privatebooleanneedAuth=false;//smtp是否需要認證
//smtp認證用戶名和密碼
privateStringusername;
privateStringpassword;
privateMultipartmp;//Multipart對象,郵件內容,標題,附件等內容均添加到其中後再生成MimeMessage對象
/**
*Constructor
*@paramsmtp郵件發送伺服器
*/
publicMail(Stringsmtp){
setSmtpHost(smtp);
createMimeMessage();
}
/**
*設置郵件發送伺服器
*@paramhostNameString
*/
publicvoidsetSmtpHost(StringhostName){
System.out.println("設置系統屬性：mail.smtp.host="+hostName);
if(props==null)
props=System.getProperties();//獲得系統屬性對象
props.put("mail.smtp.host",hostName);//設置SMTP主機
}
/**
*創建MIME郵件對象
*@return
*/
()
{
try{
System.out.println("准備獲取郵件會話對象！");
session=Session.getDefaultInstance(props,null);//獲得郵件會話對象
}
catch(Exceptione){
System.err.println("獲取郵件會話對象時發生錯誤！"+e);
returnfalse;
}
System.out.println("准備創建MIME郵件對象！");
try{
mimeMsg=newMimeMessage(session);//創建MIME郵件對象
mp=newMimeMultipart();
returntrue;
}catch(Exceptione){
System.err.println("創建MIME郵件對象失敗！"+e);
returnfalse;
}
}
/**
*設置SMTP是否需要驗證
*@paramneed
*/
publicvoidsetNeedAuth(booleanneed){
System.out.println("設置smtp身份認證：mail.smtp.auth="+need);
if(props==null)props=System.getProperties();
if(need){
props.put("mail.smtp.auth","true");
}else{
props.put("mail.smtp.auth","false");
}
}
/**
*設置用戶名和密碼
*@paramname
*@parampass
*/
publicvoidsetNamePass(Stringname,Stringpass){
username=name;
password=pass;
}
/**
*設置郵件主題
*@parammailSubject
*@return
*/
publicbooleansetSubject(StringmailSubject){
System.out.println("設置郵件主題！");
try{
mimeMsg.setSubject(mailSubject);
returntrue;
}
catch(Exceptione){
System.err.println("設置郵件主題發生錯誤！");
returnfalse;
}
}
/**
*設置郵件正文
*@parammailBodyString
*/
publicbooleansetBody(StringmailBody){
try{
BodyPartbp=newMimeBodyPart();
bp.setContent(""+mailBody,"text/html;charset=GBK");
mp.addBodyPart(bp);
returntrue;
}catch(Exceptione){
System.err.println("設置郵件正文時發生錯誤！"+e);
returnfalse;
}
}
/**
*添加附件
*@paramfilenameString
*/
publicbooleanaddFileAffix(Stringfilename){
System.out.println("增加郵件附件："+filename);
try{
BodyPartbp=newMimeBodyPart();
FileDataSourcefileds=newFileDataSource(filename);
bp.setDataHandler(newDataHandler(fileds));
bp.setFileName(fileds.getName());
mp.addBodyPart(bp);
returntrue;
}catch(Exceptione){
System.err.println("增加郵件附件："+filename+"發生錯誤！"+e);
returnfalse;
}
}
/**
*設置發信人
*@paramfromString
*/
publicbooleansetFrom(Stringfrom){
System.out.println("設置發信人！");
try{
mimeMsg.setFrom(newInternetAddress(from));//設置發信人
returntrue;
}catch(Exceptione){
returnfalse;
}
}
/**
*設置收信人
*@paramtoString
*/
publicbooleansetTo(Stringto){
if(to==null)returnfalse;
try{
mimeMsg.setRecipients(Message.RecipientType.TO,InternetAddress.parse(to));
returntrue;
}catch(Exceptione){
returnfalse;
}
}
/**
*設置抄送人
*@paramtoString
*/
publicbooleansetCopyTo(Stringto)
{
if(to==null)returnfalse;
try{
mimeMsg.setRecipients(Message.RecipientType.CC,(Address[])InternetAddress.parse(to));
returntrue;
}
catch(Exceptione)
{returnfalse;}
}
/**
*發送郵件
*/
publicbooleansendOut()
{
try{
mimeMsg.setContent(mp);
mimeMsg.saveChanges();
System.out.println("正在發送郵件....");
SessionmailSession=Session.getInstance(props,null);
Transporttransport=mailSession.getTransport("smtp");
transport.connect((String)props.get("mail.smtp.host"),username,password);
transport.sendMessage(mimeMsg,mimeMsg.getRecipients(Message.RecipientType.TO));
transport.sendMessage(mimeMsg,mimeMsg.getRecipients(Message.RecipientType.CC));
//transport.send(mimeMsg);
System.out.println("發送郵件成功！");
transport.close();
returntrue;
}catch(Exceptione){
System.err.println("郵件發送失敗！"+e);
returnfalse;
}
}
/**
*調用sendOut方法完成郵件發送
*@paramsmtp
*@paramfrom
*@paramto
*@paramsubject
*@paramcontent
*@paramusername
*@parampassword
*@returnboolean
*/
publicstaticbooleansend(Stringsmtp,Stringfrom,Stringto,Stringsubject,Stringcontent,Stringusername,Stringpassword){
MailtheMail=newMail(smtp);
theMail.setNeedAuth(true);//需要驗證
if(!theMail.setSubject(subject))returnfalse;
if(!theMail.setBody(content))returnfalse;
if(!theMail.setTo(to))returnfalse;
if(!theMail.setFrom(from))returnfalse;
theMail.setNamePass(username,password);
if(!theMail.sendOut())returnfalse;
returntrue;
}
/**
*調用sendOut方法完成郵件發送,帶抄送
*@paramsmtp
*@paramfrom
*@paramto
*@paramto
*@paramsubject
*@paramcontent
*@paramusername
*@parampassword
*@returnboolean
*/
publicstaticbooleansendAndCc(Stringsmtp,Stringfrom,Stringto,Stringto,Stringsubject,Stringcontent,Stringusername,Stringpassword){
MailtheMail=newMail(smtp);
theMail.setNeedAuth(true);//需要驗證
if(!theMail.setSubject(subject))returnfalse;
if(!theMail.setBody(content))returnfalse;
if(!theMail.setTo(to))returnfalse;
if(!theMail.setCopyTo(to))returnfalse;
if(!theMail.setFrom(from))returnfalse;
theMail.setNamePass(username,password);
if(!theMail.sendOut())returnfalse;
returntrue;
}
/**
*調用sendOut方法完成郵件發送,帶附件
*@paramsmtp
*@paramfrom
*@paramto
*@paramsubject
*@paramcontent
*@paramusername
*@parampassword
*@paramfilename附件路徑
*@return
*/
publicstaticbooleansend(Stringsmtp,Stringfrom,Stringto,Stringsubject,Stringcontent,Stringusername,Stringpassword,Stringfilename){
MailtheMail=newMail(smtp);
theMail.setNeedAuth(true);//需要驗證
if(!theMail.setSubject(subject))returnfalse;
if(!theMail.setBody(content))returnfalse;
if(!theMail.addFileAffix(filename))returnfalse;
if(!theMail.setTo(to))returnfalse;
if(!theMail.setFrom(from))returnfalse;
theMail.setNamePass(username,password);
if(!theMail.sendOut())returnfalse;
returntrue;
}
/**
*調用sendOut方法完成郵件發送,帶附件和抄送
*@paramsmtp
*@paramfrom
*@paramto
*@paramto
*@paramsubject
*@paramcontent
*@paramusername
*@parampassword
*@paramfilename
*@return
*/
publicstaticbooleansendAndCc(Stringsmtp,Stringfrom,Stringto,Stringto,Stringsubject,Stringcontent,Stringusername,Stringpassword,Stringfilename){
MailtheMail=newMail(smtp);
theMail.setNeedAuth(true);//需要驗證
if(!theMail.setSubject(subject))returnfalse;
if(!theMail.setBody(content))returnfalse;
if(!theMail.addFileAffix(filename))returnfalse;
if(!theMail.setTo(to))returnfalse;
if(!theMail.setCopyTo(to))returnfalse;
if(!theMail.setFrom(from))returnfalse;
theMail.setNamePass(username,password);
if(!theMail.sendOut())returnfalse;
returntrue;
}
}
❷ java 代碼發郵件怎麼添加附件
實現java發送郵件的過程大體有以下幾步：
准備一個properties文件，該文件中存放SMTP伺服器地址等參數。
利用properties創建一個Session對象
利用Session創建Message對象，然後設置郵件主題和正文
利用Transport對象發送郵件
需要的jar有2個：activation.jar和mail.jar發送附件，需要用到Multipart對象。
importjava.io.File;
importjava.io.IOException;
importjava.io.InputStream;
importjava.util.Properties;
importjavax.activation.DataHandler;
importjavax.activation.DataSource;
importjavax.activation.FileDataSource;
importjavax.mail.BodyPart;
importjavax.mail.Message;
importjavax.mail.MessagingException;
importjavax.mail.Multipart;
importjavax.mail.Session;
importjavax.mail.Transport;
importjavax.mail.internet.InternetAddress;
importjavax.mail.internet.MimeBodyPart;
importjavax.mail.internet.MimeMessage;
importjavax.mail.internet.MimeMultipart;
importjavax.mail.internet.MimeUtility;
{
privateMimeMessagemessage;
privateSessionsession;
privateTransporttransport;
privateStringmailHost="";
privateStringsender_username="";
privateStringsender_password="";
privatePropertiesproperties=newProperties();
/*
*初始化方法
*/
publicJavaMailWithAttachment(booleandebug){
InputStreamin=JavaMailWithAttachment.class.getResourceAsStream("MailServer.properties");
try{
properties.load(in);
this.mailHost=properties.getProperty("mail.smtp.host");
this.sender_username=properties.getProperty("mail.sender.username");
this.sender_password=properties.getProperty("mail.sender.password");
}catch(IOExceptione){
e.printStackTrace();
}
session=Session.getInstance(properties);
session.setDebug(debug);//開啟後有調試信息
message=newMimeMessage(session);
}
/**
*發送郵件
*
*@paramsubject
*郵件主題
*@paramsendHtml
*郵件內容
*@paramreceiveUser
*收件人地址
*@paramattachment
*附件
*/
publicvoiddoSendHtmlEmail(Stringsubject,StringsendHtml,StringreceiveUser,Fileattachment){
try{
//發件人
InternetAddressfrom=newInternetAddress(sender_username);
message.setFrom(from);
//收件人
InternetAddressto=newInternetAddress(receiveUser);
message.setRecipient(Message.RecipientType.TO,to);
//郵件主題
message.setSubject(subject);
//向multipart對象中添加郵件的各個部分內容，包括文本內容和附件
Multipartmultipart=newMimeMultipart();
//添加郵件正文
BodyPartcontentPart=newMimeBodyPart();
contentPart.setContent(sendHtml,"text/html;charset=UTF-8");
multipart.addBodyPart(contentPart);
//添加附件的內容
if(attachment!=null){
BodyPartattachmentBodyPart=newMimeBodyPart();
DataSourcesource=newFileDataSource(attachment);
attachmentBodyPart.setDataHandler(newDataHandler(source));
//網上流傳的解決文件名亂碼的方法，其實用MimeUtility.encodeWord就可以很方便的搞定
//這里很重要，通過下面的Base64編碼的轉換可以保證你的中文附件標題名在發送時不會變成亂碼
//sun.misc.BASE64Encoderenc=newsun.misc.BASE64Encoder();
//messageBodyPart.setFileName("=?GBK?B?"+enc.encode(attachment.getName().getBytes())+"?=");
//MimeUtility.encodeWord可以避免文件名亂碼
attachmentBodyPart.setFileName(MimeUtility.encodeWord(attachment.getName()));
multipart.addBodyPart(attachmentBodyPart);
}
//將multipart對象放到message中
message.setContent(multipart);
//保存郵件
message.saveChanges();
transport=session.getTransport("smtp");
//smtp驗證，就是你用來發郵件的郵箱用戶名密碼
transport.connect(mailHost,sender_username,sender_password);
//發送
transport.sendMessage(message,message.getAllRecipients());
System.out.println("sendsuccess!");
}catch(Exceptione){
e.printStackTrace();
}finally{
if(transport!=null){
try{
transport.close();
}catch(MessagingExceptione){
e.printStackTrace();
}
}
}
}
publicstaticvoidmain(String[]args){
JavaMailWithAttachmentse=newJavaMailWithAttachment(true);
Fileaffix=newFile("c:\測試-test.txt");
se.doSendHtmlEmail("郵件主題","郵件內容","[email protected]",affix);//
}
}
❸ 如何使用Java發送qq郵件
方法:
1.前提准備工作：
首先，郵件的發送方要開啟POP3 和SMTP服務--即發送qq郵件的賬號要開啟POP3 和SMTP服務
2.開啟方法：
登陸qq郵箱
3.點擊 設置
4.點擊—-賬戶
5.找到：POP3/IMAP/SMTP/Exchange/CardDAV/CalDAV服務 —點擊開啟
6.送簡訊 —–點擊確定
7.稍等一會，很得到一個授權碼！ –注意：這個一定要記住，一會用到
8.點擊保存修改 —OK 完成
9.java 測試代碼：
package cn.cupcat.test;
import java.util.Properties;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMessage.RecipientType;
public class SendmailUtil {
public static void main(String[] args) throws AddressException, MessagingException {
Properties properties = new Properties();
properties.put("mail.transport.protocol", "smtp");// 連接協議
properties.put("mail.smtp.host", "smtp.qq.com");// 主機名
properties.put("mail.smtp.port", 465);// 埠號
properties.put("mail.smtp.auth", "true");
properties.put("mail.smtp.ssl.enable", "true");//設置是否使用ssl安全連接 ---一般都使用
properties.put("mail.debug", "true");//設置是否顯示debug信息 true 會在控制台顯示相關信息
//得到回話對象
Session session = Session.getInstance(properties);
// 獲取郵件對象
Message message = new MimeMessage(session);
//設置發件人郵箱地址
message.setFrom(new InternetAddress("[email protected]"));
//設置收件人地址 message.setRecipients( RecipientType.TO, new InternetAddress[] { new InternetAddress("[email protected]") });
//設置郵件標題
message.setSubject("這是第一封Java郵件");
//設置郵件內容
message.setText("內容為： 這是第一封java發送來的郵件。");
//得到郵差對象
Transport transport = session.getTransport();
//連接自己的郵箱賬戶
transport.connect("[email protected]", "vvctybgbvvophjcj");//密碼為剛才得到的授權碼
//發送郵件 transport.sendMessage(message, message.getAllRecipients());
}
}
10.運行就會發出郵件了。。。。
下面是我收到郵件的截圖，當然我把源碼中的郵件地址都是修改了，不是真實的，你們測試的時候，可以修改能你們自己的郵箱。最後，祝你也能成功，如果有什麼問題，可以一起討論！
注意事項
得到的授權碼一定要保存好，程序中要使用