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通过java实现邮件的收发
发表在Java图书答疑
2012-11-17
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import java.util.Properties;
import java.util.prefs.Preferences;
import javax.activation.DataHandler;
import javax.activation.FileDataSource;
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 Jt {
private final static Preferences perf=Preferences.userRoot();
public static void main(String args[]) {
String from ="XXXX@qq.com";//发件人邮箱
String to = "XXXX@qq.com";//收件人邮箱
String subject = "你好啊!";//主题
String content ="哈哈!";//内容
String password ="****";//发件邮箱的密码
String path ="";//附件
try {
String mailserver ="smtp."+to.substring(to.indexOf('@')+1,to.length());
Properties prop = new Properties();
prop.put("mail.smtp.host", mailserver);
prop.put("mail.smtp.auth", "true");
Session sess = Session.getDefaultInstance(prop);
sess.setDebug(true);
MimeMessage message = new MimeMessage(sess);
message.setFrom(new InternetAddress(from)); // 给消息对象设置发件人
//设置收件人
String toArr[]=to.split(",");
InternetAddress[] to_mail=new InternetAddress[toArr.length];
for(int i=0;i<toArr.length;i++){
to_mail[i]=new InternetAddress(toArr[i]);
}
message.setRecipients(Message.RecipientType.BCC,to_mail);
message.setSubject(subject);
Multipart mul = new MimeMultipart();
BodyPart mdp = new MimeBodyPart();
mdp.setContent(content, "text/html;charset=gb2312");
mul.addBodyPart(mdp);
if (path != null && !path.isEmpty() ){
mdp = new MimeBodyPart();
String adjunctname = new String(path.getBytes("GBK"), "ISO-8859-1");
FileDataSource fds = new FileDataSource(path);
DataHandler handler = new DataHandler(fds);
mdp.setFileName(adjunctname);
mdp.setDataHandler(handler);
mul.addBodyPart(mdp);
}
message.setContent(mul);
message.saveChanges();
Transport transport = sess.getTransport("smtp");
transport.connect(mailserver, from, password);
transport.sendMessage(message, message.getAllRecipients());
} catch (Exception e) {
System.out.println("发送邮件产生的错误:" + e.getMessage());
}
}
}
这段代码,我填写了正确的邮箱地址和密码,也正确导入了外部类,但是还是不能成功实现,求指点
import java.util.prefs.Preferences;
import javax.activation.DataHandler;
import javax.activation.FileDataSource;
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 Jt {
private final static Preferences perf=Preferences.userRoot();
public static void main(String args[]) {
String from ="XXXX@qq.com";//发件人邮箱
String to = "XXXX@qq.com";//收件人邮箱
String subject = "你好啊!";//主题
String content ="哈哈!";//内容
String password ="****";//发件邮箱的密码
String path ="";//附件
try {
String mailserver ="smtp."+to.substring(to.indexOf('@')+1,to.length());
Properties prop = new Properties();
prop.put("mail.smtp.host", mailserver);
prop.put("mail.smtp.auth", "true");
Session sess = Session.getDefaultInstance(prop);
sess.setDebug(true);
MimeMessage message = new MimeMessage(sess);
message.setFrom(new InternetAddress(from)); // 给消息对象设置发件人
//设置收件人
String toArr[]=to.split(",");
InternetAddress[] to_mail=new InternetAddress[toArr.length];
for(int i=0;i<toArr.length;i++){
to_mail[i]=new InternetAddress(toArr[i]);
}
message.setRecipients(Message.RecipientType.BCC,to_mail);
message.setSubject(subject);
Multipart mul = new MimeMultipart();
BodyPart mdp = new MimeBodyPart();
mdp.setContent(content, "text/html;charset=gb2312");
mul.addBodyPart(mdp);
if (path != null && !path.isEmpty() ){
mdp = new MimeBodyPart();
String adjunctname = new String(path.getBytes("GBK"), "ISO-8859-1");
FileDataSource fds = new FileDataSource(path);
DataHandler handler = new DataHandler(fds);
mdp.setFileName(adjunctname);
mdp.setDataHandler(handler);
mul.addBodyPart(mdp);
}
message.setContent(mul);
message.saveChanges();
Transport transport = sess.getTransport("smtp");
transport.connect(mailserver, from, password);
transport.sendMessage(message, message.getAllRecipients());
} catch (Exception e) {
System.out.println("发送邮件产生的错误:" + e.getMessage());
}
}
}
这段代码,我填写了正确的邮箱地址和密码,也正确导入了外部类,但是还是不能成功实现,求指点