JAVA 如何實(shí)現(xiàn)群發(fā)郵件（1000封以上）謝謝！

剛好我也在學(xué)習(xí)，網(wǎng)上找了些：

專注于為中小企業(yè)提供網(wǎng)站建設(shè)、成都網(wǎng)站設(shè)計(jì)服務(wù),電腦端+手機(jī)端+微信端的三站合一,更高效的管理,為中小企業(yè)疏勒免費(fèi)做網(wǎng)站提供優(yōu)質(zhì)的服務(wù)。我們立足成都，凝聚了一批互聯(lián)網(wǎng)行業(yè)人才，有力地推動(dòng)了上千余家企業(yè)的穩(wěn)健成長(zhǎng)，幫助中小企業(yè)通過網(wǎng)站建設(shè)實(shí)現(xiàn)規(guī)模擴(kuò)充和轉(zhuǎn)變。

郵件群發(fā)：

收件人的地址設(shè)置為tomail i的形式，利用For循環(huán)向這些地址發(fā)送郵件，以實(shí)現(xiàn)群發(fā)的目的。

利用Address類設(shè)置郵件信息的收件人和發(fā)件人信息，在創(chuàng)建了郵件地址類后，通過message的setFrom()方法設(shè)置郵件的發(fā)件人，代碼如下：

message.setFrom(from_mail);

設(shè)置收件人地址時(shí)使用setRecipient()方法設(shè)置收信人地址，代碼如下：

message.setRecipient(type,address);

參數(shù)type為收件人類型。可以使用以下3個(gè)常量來區(qū)分收件人的類型：

1）Message.RecipientType.TO--發(fā)送。

2）Message.RecipientType.CC--抄送。

3）Message.RecipientType.BCC--暗 謝謝，請(qǐng)采納！

java 發(fā)送郵件 需要哪些jar包

使用JavaMail發(fā)送郵件需要用到mail.jar和activtion.jar兩個(gè)包。

該類實(shí)現(xiàn)了較完整的郵件發(fā)送功能，包括以HTML格式發(fā)送，添加附件和抄送人。下面是具體的代碼：

package?cn.cgw.util.mail;??

import?java.util.Properties;??

import?javax.activation.DataHandler;??

import?javax.activation.FileDataSource;??

import?javax.mail.Address;??

import?javax.mail.BodyPart;??

import?javax.mail.Message;??

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;??

public?class?Mail?{???

private?MimeMessage?mimeMsg;?//MIME郵件對(duì)象???

private?Session?session;?//郵件會(huì)話對(duì)象???

private?Properties?props;?//系統(tǒng)屬性???

private?boolean?needAuth?=?false;?//smtp是否需要認(rèn)證???

//smtp認(rèn)證用戶名和密碼???

private?String?username;???

private?String?password;???

private?Multipart?mp;?//Multipart對(duì)象,郵件內(nèi)容,標(biāo)題,附件等內(nèi)容均添加到其中后再生成MimeMessage對(duì)象???

/**?

*?Constructor?

*?@param?smtp?郵件發(fā)送服務(wù)器?

*/??

public?Mail(String?smtp){???

setSmtpHost(smtp);???

createMimeMessage();???

}???

/**?

*?設(shè)置郵件發(fā)送服務(wù)器?

*?@param?hostName?String??

*/??

public?void?setSmtpHost(String?hostName)?{???

System.out.println("設(shè)置系統(tǒng)屬性：mail.smtp.host?=?"+hostName);???

if(props?==?null)??

props?=?System.getProperties();?//獲得系統(tǒng)屬性對(duì)象????

props.put("mail.smtp.host",hostName);?//設(shè)置SMTP主機(jī)???

}???

/**?

*?創(chuàng)建MIME郵件對(duì)象???

*?@return?

*/??

public?boolean?createMimeMessage()???

{???

try?{???

System.out.println("準(zhǔn)備獲取郵件會(huì)話對(duì)象！");???

session?=?Session.getDefaultInstance(props,null);?//獲得郵件會(huì)話對(duì)象???

}???

catch(Exception?e){???

System.err.println("獲取郵件會(huì)話對(duì)象時(shí)發(fā)生錯(cuò)誤！"+e);???

return?false;???

}???

System.out.println("準(zhǔn)備創(chuàng)建MIME郵件對(duì)象！");???

try?{???

mimeMsg?=?new?MimeMessage(session);?//創(chuàng)建MIME郵件對(duì)象???

mp?=?new?MimeMultipart();???

return?true;???

}?catch(Exception?e){???

System.err.println("創(chuàng)建MIME郵件對(duì)象失敗！"+e);???

return?false;???

}???

}?????

/**?

*?設(shè)置SMTP是否需要驗(yàn)證?

*?@param?need?

*/??

public?void?setNeedAuth(boolean?need)?{???

System.out.println("設(shè)置smtp身份認(rèn)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(shè)置用戶名和密碼?

*?@param?name?

*?@param?pass?

*/??

public?void?setNamePass(String?name,String?pass)?{???

username?=?name;???

password?=?pass;???

}???

/**?

*?設(shè)置郵件主題?

*?@param?mailSubject?

*?@return?

*/??

public?boolean?setSubject(String?mailSubject)?{???

System.out.println("設(shè)置郵件主題！");???

try{???

mimeMsg.setSubject(mailSubject);???

return?true;???

}???

catch(Exception?e)?{???

System.err.println("設(shè)置郵件主題發(fā)生錯(cuò)誤！");???

return?false;???

}???

}??

/**??

*?設(shè)置郵件正文?

*?@param?mailBody?String??

*/???

public?boolean?setBody(String?mailBody)?{???

try{???

BodyPart?bp?=?new?MimeBodyPart();???

bp.setContent(""+mailBody,"text/html;charset=GBK");???

mp.addBodyPart(bp);???

return?true;???

}?catch(Exception?e){???

System.err.println("設(shè)置郵件正文時(shí)發(fā)生錯(cuò)誤！"+e);???

return?false;???

}???

}???

/**??

*?添加附件?

*?@param?filename?String??

*/???

public?boolean?addFileAffix(String?filename)?{???

System.out.println("增加郵件附件："+filename);???

try{???

BodyPart?bp?=?new?MimeBodyPart();???

FileDataSource?fileds?=?new?FileDataSource(filename);???

bp.setDataHandler(new?DataHandler(fileds));???

bp.setFileName(fileds.getName());???

mp.addBodyPart(bp);???

return?true;???

}?catch(Exception?e){???

System.err.println("增加郵件附件："+filename+"發(fā)生錯(cuò)誤！"+e);???

return?false;???

}???

}???

/**??

*?設(shè)置發(fā)信人?

*?@param?from?String??

*/???

public?boolean?setFrom(String?from)?{???

System.out.println("設(shè)置發(fā)信人！");???

try{???

mimeMsg.setFrom(new?InternetAddress(from));?//設(shè)置發(fā)信人???

return?true;???

}?catch(Exception?e)?{???

return?false;???

}???

}???

/**??

*?設(shè)置收信人?

*?@param?to?String??

*/???

public?boolean?setTo(String?to){???

if(to?==?null)return?false;???

try{???

mimeMsg.setRecipients(Message.RecipientType.TO,InternetAddress.parse(to));???

return?true;???

}?catch(Exception?e)?{???

return?false;???

}?????

}???

/**??

*?設(shè)置抄送人?

*?@param?copyto?String???

*/???

public?boolean?setCopyTo(String?copyto)???

{???

if(copyto?==?null)return?false;???

try{???

mimeMsg.setRecipients(Message.RecipientType.CC,(Address[])InternetAddress.parse(copyto));???

return?true;???

}???

catch(Exception?e)???

{?return?false;?}???

}???

/**??

*?發(fā)送郵件?

*/???

public?boolean?sendOut()???

{???

try{???

mimeMsg.setContent(mp);???

mimeMsg.saveChanges();???

System.out.println("正在發(fā)送郵件....");???

Session?mailSession?=?Session.getInstance(props,null);???

Transport?transport?=?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(fā)送郵件成功！");???

transport.close();???

return?true;???

}?catch(Exception?e)?{???

System.err.println("郵件發(fā)送失敗！"+e);???

return?false;???

}???

}???

/**?

*?調(diào)用sendOut方法完成郵件發(fā)送?

*?@param?smtp?

*?@param?from?

*?@param?to?

*?@param?subject?

*?@param?content?

*?@param?username?

*?@param?password?

*?@return?boolean?

*/??

public?static?boolean?send(String?smtp,String?from,String?to,String?subject,String?content,String?username,String?password)?{??

Mail?theMail?=?new?Mail(smtp);??

theMail.setNeedAuth(true);?//需要驗(yàn)證??

if(!theMail.setSubject(subject))?return?false;??

if(!theMail.setBody(content))?return?false;??

if(!theMail.setTo(to))?return?false;??

if(!theMail.setFrom(from))?return?false;??

theMail.setNamePass(username,password);??

if(!theMail.sendOut())?return?false;??

return?true;??

}??

/**?

*?調(diào)用sendOut方法完成郵件發(fā)送,帶抄送?

*?@param?smtp?

*?@param?from?

*?@param?to?

*?@param?copyto?

*?@param?subject?

*?@param?content?

*?@param?username?

*?@param?password?

*?@return?boolean?

*/??

public?static?boolean?sendAndCc(String?smtp,String?from,String?to,String?copyto,String?subject,String?content,String?username,String?password)?{??

Mail?theMail?=?new?Mail(smtp);??

theMail.setNeedAuth(true);?//需要驗(yàn)證??

if(!theMail.setSubject(subject))?return?false;??

if(!theMail.setBody(content))?return?false;??

if(!theMail.setTo(to))?return?false;??

if(!theMail.setCopyTo(copyto))?return?false;??

if(!theMail.setFrom(from))?return?false;??

theMail.setNamePass(username,password);??

if(!theMail.sendOut())?return?false;??

return?true;??

}??

/**?

*?調(diào)用sendOut方法完成郵件發(fā)送,帶附件?

*?@param?smtp?

*?@param?from?

*?@param?to?

*?@param?subject?

*?@param?content?

*?@param?username?

*?@param?password?

*?@param?filename?附件路徑?

*?@return?

*/??

public?static?boolean?send(String?smtp,String?from,String?to,String?subject,String?content,String?username,String?password,String?filename)?{??

Mail?theMail?=?new?Mail(smtp);??

theMail.setNeedAuth(true);?//需要驗(yàn)證??

if(!theMail.setSubject(subject))?return?false;??

if(!theMail.setBody(content))?return?false;??

if(!theMail.addFileAffix(filename))?return?false;???

if(!theMail.setTo(to))?return?false;??

if(!theMail.setFrom(from))?return?false;??

theMail.setNamePass(username,password);??

if(!theMail.sendOut())?return?false;??

return?true;??

}??

/**?

*?調(diào)用sendOut方法完成郵件發(fā)送,帶附件和抄送?

*?@param?smtp?

*?@param?from?

*?@param?to?

*?@param?copyto?

*?@param?subject?

*?@param?content?

*?@param?username?

*?@param?password?

*?@param?filename?

*?@return?

*/??

public?static?boolean?sendAndCc(String?smtp,String?from,String?to,String?copyto,String?subject,String?content,String?username,String?password,String?filename)?{??

Mail?theMail?=?new?Mail(smtp);??

theMail.setNeedAuth(true);?//需要驗(yàn)證??

if(!theMail.setSubject(subject))?return?false;??

if(!theMail.setBody(content))?return?false;??

if(!theMail.addFileAffix(filename))?return?false;???

if(!theMail.setTo(to))?return?false;??

if(!theMail.setCopyTo(copyto))?return?false;??

if(!theMail.setFrom(from))?return?false;??

theMail.setNamePass(username,password);??

if(!theMail.sendOut())?return?false;??

return?true;??

}??

}

java 郵件發(fā)送 為什么不能運(yùn)行成功 代碼如下

你都沒有設(shè)置郵件服務(wù)器....這句錯(cuò)誤就是你沒有設(shè)置郵件服務(wù)器或者你的用戶名密碼不正確

下面是我原來寫的代碼請(qǐng)參考:

首先是郵件模板的讀取工具類

[java]?view?plaincopy

package?gamutsoft.mail.test;??

import?java.io.BufferedReader;??

import?java.io.File;??

import?java.io.FileInputStream;??

import?java.io.FileNotFoundException;??

import?java.io.IOException;??

import?java.io.InputStreamReader;??

public?class?ReadHTML?{??

/**?

*?@param?args?

*/??

//public?static?void?main(String[]?args)?{??

//?TODO?Auto-generated?method?stub??

public?static?String?reMailString(){??

//String?info="";??

StringBuffer?buff=new?StringBuffer();??

InputStreamReader?in=null;??

BufferedReader?br=null;??

String?path?=?System.getProperty("user.dir")?+?"/src/html/email2.html";??

File?file=new?File(path);??

try?{??

in=new?InputStreamReader(new?FileInputStream(file));??

br=new?BufferedReader(in);??

String?line=null;??

while((line=br.readLine())?!=?null){??

//System.out.println(line);??

buff.append(line).append("\n");??

}??

}?catch?(FileNotFoundException?e)?{??

//?TODO?Auto-generated?catch?block??

e.printStackTrace();??

}?catch?(IOException?e)?{??

//?TODO?Auto-generated?catch?block??

e.printStackTrace();??

}finally{??

if(in!=null){??

try?{??

in.close();??

}?catch?(IOException?e)?{??

//?TODO?Auto-generated?catch?block??

e.printStackTrace();??

}??

}??

if(br!=null){??

try?{??

br.close();??

}?catch?(IOException?e)?{??

//?TODO?Auto-generated?catch?block??

e.printStackTrace();??

}??

}??

}??

return?buff.toString();??

}??

}??

郵件的html模板:

email2.html(亂寫的不喜勿噴)

[html]?view?plaincopy

html??

head??

meta?http-equiv="content-type"?content="text/html;?charset=UTF-8"??

/head??

body??

h4您好:?/h4??

a?href=""網(wǎng)易/a??

br??

歡迎光臨,呵呵呵呵呵呵呵呵額??

br??

十分感謝??

h4您好:/h4??

a?href=""網(wǎng)易/a??

br??

歡迎光臨,呵呵呵呵呵呵呵呵額??

br??

十分感謝??

h4您好:/h4??

a?href=""網(wǎng)易/a??

br??

歡迎光臨,呵呵呵呵呵呵呵呵額??

br??

十分感謝??

h4您好:/h4??

a?href=""網(wǎng)易/a??

br??

歡迎光臨,呵呵呵呵呵呵呵呵額??

br??

十分感謝??

h4您好:/h4??

a?href=""網(wǎng)易/a??

br??

/html??

郵件發(fā)送類:這里的郵箱是為了自己的隱私我亂寫了下,如果測(cè)試的話還得填寫正確的

[java]?view?plaincopy

package?gamutsoft.mail.test;??

import?java.io.UnsupportedEncodingException;??

import?java.util.Date;??

import?java.util.Properties;??

import?javax.mail.Address;??

import?javax.mail.Authenticator;??

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;??

public?class?MailTest1?{??

public?static?void?send()?throws?MessagingException,?UnsupportedEncodingException?{??

String?info=ReadHTML.reMailString();??

//郵件服務(wù)器??

String?host="smtp.163.com";??

//發(fā)件人??

String?from="1111@163.com";??

//收件人??

String?to="1111@qq.com";??

//抄送人??

String?toCC1="111111@163.com";??

String?toCC2="444444@126.com";??

String?username="5555555555@163.com";??

String?password="51234";??

//郵件會(huì)話屬性??

//Properties??p=System.getProperties();??

Properties??p=new?Properties();??

p.put("mail.smtp.host",?host);??

/*?

p.put("mail.smtp.auth",?"true");?

//創(chuàng)建一個(gè)密碼驗(yàn)證器?

Authenticator?auth?=?new?MyAuthenticator(username,?password);?

//獲得Session?

Session?session=Session.getDefaultInstance(p,auth);?

*/??

//////////////////sesion獲得Transprot方法??

Session?session=Session.getDefaultInstance(p,null);??

session.setDebug(true);??

/////////////////////??

//創(chuàng)建Message信息??

MimeMessage?message=new?MimeMessage(session);??

//創(chuàng)建郵件發(fā)送者地址??

Address?fromAD?=?new?InternetAddress(from,"李建勛");??

//nternetAddress(from)??

//設(shè)置郵件發(fā)送者??

message.setFrom(fromAD);??????

//創(chuàng)建郵件的接收地址??

Address?toAD?=?new?InternetAddress(to);??

//創(chuàng)建抄送人數(shù)組??

Address?toCAD1=new?InternetAddress(toCC1);??

Address?toCAD2=new?InternetAddress(toCC2);??

Address?[]?toCs={toCAD1,toCAD2};??

//設(shè)置郵件的接收地址??

message.setRecipient(Message.RecipientType.TO,toAD);??

message.addRecipients(Message.RecipientType.CC,toCs?);??

//設(shè)置發(fā)送時(shí)間??

message.setSentDate(new?Date());??

//設(shè)置主題????

message.setSubject("Hello?JavaMail44");???

/*?

//設(shè)置消息正文,文本??????????

message.setText("Welcome?To?JavaMail");?

//設(shè)置HTML內(nèi)容?

message.setContent("a?href=''百度/a","text/html;charset=utf-8");?

*/????

//?MimeMultipart類是一個(gè)容器類，包含MimeBodyPart類型的對(duì)象???????

Multipart?mainPart?=?new?MimeMultipart();????

//創(chuàng)建一個(gè)包含HTML內(nèi)容的MimeBodyPart??

BodyPart?body=new?MimeBodyPart();??

//設(shè)置html內(nèi)容??

body.setContent(info,"text/html;charset=utf-8");??

//將MimeMultipart設(shè)置為郵件內(nèi)容??

mainPart.addBodyPart(body);??

message.setContent(mainPart);??

///////////////////////sesion獲得Transprot??

Transport?transport=session.getTransport("smtp");??

transport.connect(host,?username,?password);??

transport.sendMessage(message,message.getAllRecipients());??

transport.close();??

//////////////////////??

//??Transport.send(message);??

}??

public?static?void?main(String[]?args)?throws?MessagingException,?UnsupportedEncodingException??{??

//?TODO?Auto-generated?method?stub??

send();??

}??

}??

接下來是MyAuthenticator類[java]?view?plaincopy

package?gamutsoft.mail.test;??

import?javax.mail.Authenticator;??

import?javax.mail.PasswordAuthentication;??

public?class?MyAuthenticator?extends?Authenticator{??

/*在使用Authenticator這個(gè)抽象類時(shí)，我們必須采用繼承該抽象類的方式，并且該繼承類必須具?

*?有返回PasswordAuthentication對(duì)象（用于存儲(chǔ)認(rèn)證時(shí)要用到的用戶名、密碼）getPasswordAuthentication()?

*?方法。并且要在Session中進(jìn)行注冊(cè)，使Session能夠了解在認(rèn)證時(shí)該使用哪個(gè)類。??

*?*/??

String?username=null;??

String?password=null;??

public?MyAuthenticator(){??

}??

public?MyAuthenticator(String?username,String?password){??

this.username=username;??

this.password=password;??

}??

public?PasswordAuthentication?getPasswordAuthentication(){??

return?new?PasswordAuthentication(username,?password);??

}??

}

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