| 发表于：2007-09-19 21:23:34 楼主 |
源码：
package mail;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.net.*;
import java.io.*;
import javax.swing.*;
public class mailtest
{
public static void main（string args[])
{
jframe frame=new mailtestframe（);
frame.setdefaultcloseoperation（jframe.exit_on_close);
frame.show（);
}
}
class mailtestframe extends jframe
{
private bufferedreader in;
private printwriter out;
private jtextfield from;
private jtextfield to;
private jtextfield smtpserver;
private jtextarea message;
private jtextarea communication;
sun.misc.base64encoder enc;
public static final int width=300;
public static final int height=300;
public mailtestframe（)
{
setsize（width,height);
settitle（ "mailtest ");
gridbaglayout gbag=new gridbaglayout（);
getcontentpane（).setlayout（gbag);
gridbagconstraints gbc=new gridbagconstraints（);
gbc.fill=gridbagconstraints.horizontal;
gbc.weightx=0;
gbc.weighty=0;
gbc.weightx=0;
add（new jlabel（ "from: "),gbc,0,0,1,1);
gbc.weightx=100;
from=new jtextfield（20);
add（from,gbc,1,0,1,1);
gbc.weightx=0;
add（new jlabel（ "to: "),gbc,0,1,1,1);
gbc.weightx=100;
to=new jtextfield（20);
add（to,gbc,1,1,1,1);
gbc.weightx=0;
add（new jlabel（ "smtp server: "),gbc,0,2,1,1);
gbc.weightx=100;
smtpserver=new jtextfield（20);
add（smtpserver,gbc,1,2,1,1);
gbc.fill=gridbagconstraints.both;
gbc.weighty=100;
message=new jtextarea（);
add（new jscrollpane（message),gbc,0,3,2,1);
communication=new jtextarea（);
add（new jscrollpane（communication),gbc,0,4,2,1);
gbc.weighty=0;
jbutton sendbutton=new jbutton（ "send ");
sendbutton.addactionlistener（new actionlistener（)
{
public void actionperformed（actionevent evt)
{
new thread（)
{
public void run（)
{
sendmail（);
}
}.start（);
}
});
jpanel buttonpanel=new jpanel（);
buttonpanel.add（sendbutton);
add（buttonpanel,gbc,0,5,2,1);
}
private void add（component c,gridbagconstraints gbc,int x,int y,int w,int h)
{
gbc.gridx=x;
gbc.gridy=y;
gbc.gridwidth=w;
gbc.gridheight=h;
getcontentpane（).add（c,gbc);
}
public void sendmail（)
{
try
{
socket s=new socket（smtpserver.gettext（),25);
out=new printwriter（s.getoutputstream（));
in=new bufferedreader（new inputstreamreader（s.getinputstream（)));
string hostname=inetaddress.getlocalhost（).gethostname（);
receive（);
send（ "helo "+hostname);
receive（);
send（ "mail from: < "+from.gettext（)+ "> ");
receive（);
send（ "rcpt to: < "+to.gettext（)+ "> ");
receive（);
send（ "data ");
receive（);
stringtokenizer tokenizer=new stringtokenizer（message.gettext（), "\n ");
while（tokenizer.hasmoretokens（))
send（tokenizer.nexttoken（));
send（ ". ");
s.close（);
}
catch（ioexception exception)
{
communication.append（ "error: "+exception);
}
}
public void send（string s)throws ioexception
{
communication.append（s);
communication.append（ "\n ");
out.print（s);
out.print（ "\r\n ");
out.flush（);
}
public void receive（)throws ioexception
{
string line=in.readline（);
if（line!=null)
{
communication.append（line);
communication.append（ "\n ");
}
}
}
最后报错为：
mail from: <fff@ff.com>
553 requested action not taken: local user only,smtp5,wkjsjrcbpwlph_fgubb9ag==.26394s2 1190207440
rcpt to: <******@126.com>
503 bad sequence of commands
data
354 send from rising mail proxy
fffff
麻烦，大家给我分析下是什么问题啊，多谢了
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