用java写收发邮件的程序，求助，在线

import javautilProperties;

import javautilDate;

import javaxmailSession;

import javaxmailMessage;

import javaxmailTransport;

import javaxmailinternetMimeMessage;

import javaxmailinternetInternetAddress;

public class HelloWorldJavaMail {

public static void main(String[] args) {

try {

Properties props = SystemgetProperties();

propsput("mailsmtphost","xxxxxxxxxxxx");

Session session=SessiongetDefaultInstance(props,null);

MimeMessage mimeMessage=new MimeMessage(session);

mimeMessagesetFrom(new InternetAddress("xx@xxxx","姓名","gb2312"));

mimeMessagesetRecipients(MessageRecipientTypeTO,"xx@xxxx");

mimeMessagesetSubject("Hello World JavaMail","gb2312");

mimeMessagesetText("<h1>Hello World JavaMail</h1>","gb2312");

mimeMessagesetHeader("Content-Type","text/html");

mimeMessagesetSentDate(new Date());

Transportsend(mimeMessage);

} catch (Exception e) {

eprintStackTrace();

}

}

}

2。收信

import javaxmail;

import javaxmailinternet;

import javautil;

public class HelloWorldPOP {

public static void main(String args[]) {

try {

String host="xxxxxxxxxxxx";

String user="xxxxxx";

String password="xxxxxx";

Session session = SessiongetDefaultInstance(SystemgetProperties(), null);

Store store = sessiongetStore("pop3");

storeconnect(host, -1, user, password);

Folder folder = storegetFolder("INBOX");

folderopen(FolderREAD_ONLY);

int totalMessages = foldergetMessageCount();

if (totalMessages == 0) {

Systemoutprintln("没有邮件");

folderclose(false);

storeclose();

return;

}

Message[] messages = foldergetMessages();

for (int i = 0; i < messageslength; i++) {

showMessage(messages[i]);

}

folderclose(false);

storeclose();

} catch (Exception e) {

eprintStackTrace();

}

}

public static void showMessage(Message m) throws Exception {

Address[] a;

if ((a = mgetFrom())!=null) {

for (int j = 0; j < alength; j++) {

Systemoutprintln("送信人: " + MimeUtilitydecodeText(a[j]toString()));

}

}

if ((a = mgetRecipients(MessageRecipientTypeTO))!=null) {

for (int j = 0; j < alength; j++) {

Systemoutprintln("收信人: " + MimeUtilitydecodeText(a[j]toString()));

}

}

Systemoutprintln("主体: " + mgetSubject());

Date d = mgetSentDate();

Systemoutprintln("日期: " + (d!= null dtoString() : "不明"));

Systemoutprintln("大小: " + mgetSize());

Systemoutprintln("内容：\n" + mgetContent());

}

}

用JAVAMAIL很容易实现的。

参照：

>

public boolean sendout()

{

try

{

mimeMessagesetContent(mp);

mimeMessagesaveChanges();

Session mailSession = SessiongetInstance(props, null);

Transport transport = mailSessiongetTransport("smtp");

transportconnect(hostname, username, password);

transportsendMessage(mimeMessage, mimeMessagegetRecipients(javaxmailMessageRecipientTypeTO));

transportclose();

}

catch(Exception e)

{

eprintStackTrace();

return false;

}

return true;

}

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