调用java方法确认
我正在使用此代码向邮箱发送电子邮件调用java方法确认,java,Java,我正在使用此代码向邮箱发送电子邮件 private String sendFromGMail(String from, String pass, String[] to, String subject, String body) { Properties props = System.getProperties(); String host = "smtp.gmail.com"; props.put("mail.smtp.starttls.
private String sendFromGMail(String from, String pass, String[] to, String subject, String body)
{
Properties props = System.getProperties();
String host = "smtp.gmail.com";
props.put("mail.smtp.starttls.enable", "true");
props.put("mail.smtp.host", host);
props.put("mail.smtp.user", from);
props.put("mail.smtp.password", pass);
props.put("mail.smtp.port", "587");
props.put("mail.smtp.auth", "true");
Session session = Session.getDefaultInstance(props);
MimeMessage message = new MimeMessage(session);
try
{
message.setFrom(new InternetAddress(from));
InternetAddress[] toAddress = new InternetAddress[to.length];
// To get the array of addresses
for (int i = 0; i < to.length; i++)
{
toAddress[i] = new InternetAddress(to[i]);
}
for (int i = 0; i < toAddress.length; i++)
{
message.addRecipient(Message.RecipientType.TO, toAddress[i]);
}
message.setSubject(subject);
message.setText(body);
Transport transport = session.getTransport("smtp");
transport.connect(host, from, pass);
transport.sendMessage(message, message.getAllRecipients());
transport.close();
}
catch (AddressException ae)
{
ae.printStackTrace();
}
catch (MessagingException me)
{
me.printStackTrace();
}
return "message is send";
}
private String sendFromGMail(String from、String pass、String[]to、String subject、String body)
{
Properties props=System.getProperties();
String host=“smtp.gmail.com”;
props.put(“mail.smtp.starttls.enable”、“true”);
props.put(“mail.smtp.host”,host);
props.put(“mail.smtp.user”,from);
props.put(“mail.smtp.password”,pass);
props.put(“mail.smtp.port”,“587”);
props.put(“mail.smtp.auth”,“true”);
Session Session=Session.getDefaultInstance(props);
MimeMessage message=新MimeMessage(会话);
尝试
{
message.setFrom(新的InternetAddress(from));
InternetAddress[]toAddress=新的InternetAddress[to.length];
//获取地址数组的步骤
for(int i=0;i
我感兴趣的是,如果这封电子邮件发送成功,我如何能插入一些支票。例如,是否有任何方法检查是否存在异常?如果返回“邮件已发送”没有异常,则可以添加这些返回,例如:
...
catch (AddressException ae)
{
ae.printStackTrace();
return "Mail is not sent for some reason 1";
}
catch (MessagingException me)
{
me.printStackTrace();
return "Mail is not sent for some reason 2";
}
TransportListener listener = new MyTransportAdapter();
transport.addTransportListener(listener);
看这里:。基本上你可以做两件事:
TransportListener
...
catch (AddressException ae)
{
ae.printStackTrace();
return "Mail is not sent for some reason 1";
}
catch (MessagingException me)
{
me.printStackTrace();
return "Mail is not sent for some reason 2";
}
TransportListener listener = new MyTransportAdapter();
transport.addTransportListener(listener);
其中:
class MyTransportAdapter extends TransportAdapter {
//Implement only methods of interest from TransportAdapter API
}
只需添加一个
boolean
和一个finally
bloc,如下所示:
try{
....
boolean isExceptionThrown = false ;
}
catch (AddressException ae){
ae.printStackTrace();
isExceptionThrown = true ;
}
catch (MessagingException me)
{
me.printStackTrace();
isExceptionThrown = true ;
}
finally{
if (isExceptionThrown == false) return "mail OK sent" ;
}
如果您没有异常,这只意味着SMTP服务器已接受并将尝试传递您的邮件。但是这个地址可能根本不存在,要知道这一点,唯一的办法就是等待,看看你是否收到一个“传递状态通知”,告诉你这一点,但有些服务器甚至不会发送给你
因此,基本上,如果您需要可靠的方式发送消息,请不要使用电子邮件。您只需要从该方法返回状态字符串?可能的重复看起来是一个很好的解决方案。你能给我看一些代码示例吗?你只需要添加另一个类。对不起,我不能为你做这项工作。为此,有一些自由职业网站。祝你好运。如果你发电子邮件给someguy@somecompany.com,Gmail将检查somecompany.com是否存在,但它不知道是否有人在那里(只有somecompany.com的服务器知道)。您不会收到任何异常,您的邮件也不会被传递。看这里: