?
嗨，大家好啊！我是尋覓
今天下午，坐著沒事做
，便到自己的硬盤分區上look look；結果發現以前下載的一個張孝祥老師網絡課堂教程；
反正沒事做，看看不錯代碼很簡單，于是照著做了一個；就是下面這個東東，呵呵，很好玩的
，大家先玩玩先
我會找時間做的。里面該注意的地方還真不少；
代碼：
?1
import
?java.awt.
*
;
?2
import
?java.awt.event.
*
;
?3
import
?java.net.
*
;?
?4
?5
public
?
class
?Cat?
extends
?Frame
{?
?6
?7
??List?lst?
=
?
new
?List(
6
);
?8
??TextField?tfIP?
=
?
new
?TextField(
15
);
?9
??TextField?tfData?
=
?
new
?TextField(
20
);
10
??DatagramSocket?ds?
=
?
null
;
11
??
public
?Cat()
{
12
??
try
{
13
???ds?
=
?
new
?DatagramSocket(
3000
);
14
??}
catch
(Exception?e)
{
15
???e.printStackTrace();
16
??}
17
??
this
.add(lst,
"
Center
"
);
18
??Panel?p?
=
?
new
?Panel();
19
??
this
.add(p,
"
South
"
);
20
??
21
??p.setLayout(
new
?BorderLayout());
22
??
23
??p.add(tfIP,
"
West
"
);
24
??p.add(tfData,
"
East
"
);
25
??
26
??
new
?Thread(
new
?Runnable()
{
27
???
public
?
void
?run()
{
28
???????
byte
[]?buf?
=
?
new
?
byte
[
1024
];
29
???????DatagramPacket?dp?
=
?
new
?DatagramPacket(buf,
1024
);
30
????
while
(
true
)
{
31
?????
try
{
32
?????ds.receive(dp);
33
?????lst.add(
new
?String(buf,
0
,dp.getLength())
+
""
+
34
???????
"
from
"
+
dp.getAddress().getHostAddress()
+
"
:
"
+
35
???????dp.getPort(),
0
);
36
?????}
catch
(Exception?e)
{
37
??????e.printStackTrace();
38
?????}
39
?????}
40
???}
41
??}
).start();
42
??
43
??tfData.addActionListener(
new
?ActionListener()
{
44
???
public
?
void
?actionPerformed(ActionEvent?e)
{
45
?????
46
????
byte
?[]?buf;
47
????buf?
=
?tfData.getText().getBytes();
48
????
try
{
49
????DatagramPacket?dp?
=
?
new
?DatagramPacket(buf,buf.length
50
??????,InetAddress.getByName(tfIP.getText()),
3000
);
51
????ds.send(dp);
52
????}
catch
(Exception?ex)
{
53
?????
if
(
!
ds.isClosed())
{
54
?????ex.printStackTrace();
55
????????}
56
????}
57
????tfData.setText(
""
);
58
????
59
???}
60
??}
);
61
??
62
??addWindowListener(
new
?WindowAdapter()
{
63
???
public
?
void
?windowClosing(WindowEvent?e)
{
64
????ds.close();
65
????dispose();
66
????System.exit(
0
);
67
???}
68
???
69
??}
);
70
??
71
?}
72
?
public
?
static
?
void
?main(String[]?args)?
{
73
??System.out.println(
"
starting?chat?
"
);
74
??Cat?mainFrame?
=
?
new
?Cat();
75
??mainFrame.setSize(
300
,
400
);
76
??mainFrame.setTitle(
"
UDP聊天工具
"
);
77
??mainFrame.setVisible(
true
);
78
??mainFrame.setResizable(
false
);
79
???}
?
80
81
}
82
83
地震讓大伙知道：居安思危，才是生存之道。
posted on 2007-03-11 20:37
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