I have an application which contains a GUI, it is using Javamail. When i open this Jframe
I have to see messages that are sent to my mail on a jTextArea
.
The problem is when i wrote my code it only shows just the last message sent.
How do I display all new messages in my inbox?
This is my code :
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
Properties props = new Properties();
props.put("mail.pop3.host", "pop.gmail.com");
props.put("mail.pop3.user", "mymail@gmail.com");
props.put("mail.pop3.socketFactory", 995);
props.put("mail.pop3.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
props.put("mail.pop3.port", 995);
Session session = Session.getDefaultInstance(props, new Authenticator() {
@Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication("mymail@gmail.com", "mypassword");
}
});
try {
Store store = session.getStore("pop3");
store.connect("pop.gmail.com", "mymail@gmail.com", "mypaswword");
Folder fldr = store.getFolder("INBOX");
fldr.open(Folder.READ_ONLY);
Message[] msg = fldr.getMessages();
Address[] address;
for (int i = 0; i < msg.length; i++) {
jTextArea1.setText("SentDate : " + msg[i].getSentDate() + "\n" + "From : " + msg[i].getFrom()[0] + "\n" + "Subject : " + msg[i].getSubject() + "\n" + "Message : " + "\n" + msg[i].getContent().toString());
}
fldr.close(true);
store.close();
} catch (Exception e) {
System.out.println(e);
}
You repeatedly set the text of the jTextArea1
to the same contents in your loop over messages here:
for (int i = 0; i < msg.length; i++) {
jTextArea1.setText("SentDate : " + msg[i].getSentDate() + "\n" + "From : " + msg[i].getFrom()[0] + "\n" + "Subject : " + msg[i].getSubject() + "\n" + "Message : " + "\n" + msg[i].getContent().toString());
}
You should build a StringBuilder
with all the messages and then set the contents of the jTextArea1
final StringBuilder sb = new StringBuilder();
for (int i = 0; i < msg.length; i++) {
sb.append("SentDate : " + msg[i].getSentDate() + "\n" + "From : " + msg[i].getFrom()[0] + "\n" + "Subject : " + msg[i].getSubject() + "\n" + "Message : " + "\n" + msg[i].getContent().toString());
}
jTextArea1.setText(sb.toString());
You can then make this a lot more legible by using an enhanced for loop and using the append
method of the StringBuilder
.
final StringBuilder sb = new StringBuilder();
for (Message message : msg) {
sb.append("SentDate : ").
append(message.getSentDate()).
append("\n").
append("From : ").
append(message.getFrom()[0]).
append("\n").append("Subject : ").
append(message.getSubject()).
append("\n").
append("Message : ").
append("\n").
append(message.getContent().toString());
}
jTextArea1.setText(sb.toString());
final StringBuilder sb = new StringBuilder();
for (Message message : msg) {
sb.append("SentDate : ").
append(message.getSentDate()).
append("\n").
append("From : ").
append(message.getFrom()[0]).
append("\n").append("Subject : ").
append(message.getSubject()).
append("\n").
append("Message : ").
append("\n").
append(message.getContent().toString());
}
jTextArea1.setText(sb.toString());
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