receive()方法从main()方法中调用,它依次打开你的pop3信箱检查消息,每次都调用printmessage()。代码如下:
/**
* "receive" method to fetch messages and process them.
*/
public static void receive(string popserver, string popuser
, string poppassword)
{
store store=null;
folder folder=null;
try
{
// -- get hold of the default session --
properties props = system.getproperties();
session session = session.getdefaultinstance(props, null);
// -- get hold of a pop3 message store, and connect to it --
store = session.getstore("pop3");
store.connect(popserver, popuser, poppassword);
// -- try to get hold of the default folder --
folder = store.getdefaultfolder();
if (folder == null) throw new exception("no default folder");
// -- ...and its inbox --
folder = folder.getfolder("inbox");
if (folder == null) throw new exception("no pop3 inbox");
// -- open the folder for read only --
folder.open(folder.read_only);
// -- get the message wrappers and process them --
message[] msgs = folder.getmessages();
for (int msgnum = 0; msgnum < msgs.length; msgnum++)
{
printmessage(msgs[msgnum]);
}
}
catch (exception ex)
{
ex.printstacktrace();
}
finally
{
// -- close down nicely --
try
{
if (folder!=null) folder.close(false);
if (store!=null) store.close();
}
catch (exception ex2) {ex2.printstacktrace();}
}
}
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