java调用ipmsg源代码

飞鸽传书（IP Messenger,简为IPMsg）是一个小巧方便的即时通信软件，它适合用于局域网内甚至广域网间进行实时通信和文档共享。特别是在局域网内传送文件/文件夹的速度非常快！

• IPMsg 是一款局域网内即时通信软件, 基于 TCP/IP(UDP).
• 可运行于多种操作平台(Win/Mac/UNIX/Java), 并实现跨平台信息交流.
• 不需要服务器支持.
• 支持文件/文件夹的传送 (2.00版以上)
• 通讯数据采用 RSA/Blofish 加密 (2.00版以上)
• 十分小巧, 简单易用, 而且你可以完全免费使用它
• 目前已有的版本包括: Win32, Win16, MacOS, MacOSX, X11, GTK, GNOME,Java 等, 并且公开源代码。

本文演示了如何使用Java的net包，向IPMSG客户端发送消息。

IPMSG Command 常量定义如下：

<!--<br><br>Code highlighting produced by Actipro CodeHighlighter (freeware)<br>http://www.CodeHighlighter.com/<br><br>--> 1 /* ==========ConstantValue========== */
2 public static final long IPMSG_COMMASK = 0x000000ff ;
3 public static final long IPMSG_OPTMASK = 0xffffff00 ;
4 public static final long IPMSG_NOOPERATION = 0x00000000 ;
5 public static final long IPMSG_BR_ENTRY = 0x00000001 ;
6 public static final long IPMSG_BR_EXIT = 0x00000002 ;
7 public static final long IPMSG_ANSENTRY = 0x00000003 ;
8 public static final long IPMSG_BR_ABSENCE = 0x00000004 ;
9
10
11
12 public static final long IPMSG_BR_ISGETLIST = 0x00000018 ;
13 public static final long IPMSG_OKGETLIST = 0x00000015 ;
14 public static final long IPMSG_GETLIST = 0x00000016 ;
15 public static final long IPMSG_ANSLIST = 0x00000017 ;
16
17 public static final long IPMSG_SENDMSG = 0x00000020 ;
18 public static final long IPMSG_RECVMSG = 0x00000021 ;
19
20 public static final long IPMSG_READMSG = 0x00000030 ;
21 public static final long IPMSG_DELMSG = 0x00000031 ;
22
23 public static final long IPMSG_GETINFO = 0x00000040 ;
24 public static final long IPMSG_SENDINFO = 0x00000041 ;
25
26 // otheropt
27 public static final long IPMSG_ABSENCEOPT = 0x00000100 ;
28 public static final long IPMSG_SERVEROPT = 0x00000200 ;
29 public static final long IPMSG_DIALUPOPT = 0x00010000 ;
30
31 // sendopt
32 public static final long IPMSG_SENDCHECKOPT = 0x00000100 ;
33 public static final long IPMSG_SECRETOPT = 0x00000200 ;
34 public static final long IPMSG_BROADCASTOPT = 0x00000400 ;
35 public static final long IPMSG_MULTICASTOPT = 0x00000800 ;
36 public static final long IPMSG_NOPOPUPOPT = 0x00001000 ;
37 public static final long IPMSG_AUTORETOPT = 0x00002000 ;
38 public static final long IPMSG_RETRYOPT = 0x00004000 ;
39 public static final long IPMSG_PASSWORDOPT = 0x00008000 ;
40 public static final long IPMSG_NOLOGOPT = 0x00020000 ;
41 public static final long IPMSG_NEWMUTIOPT = 0x00040000 ;
42
43 public static final int MAXBUF = 8192 ;
44 /* ==========end========== */

IPMSG收发数据包的格式（一行）：

<!--<br><br>Code highlighting produced by Actipro CodeHighlighter (freeware)<br>http://www.CodeHighlighter.com/<br><br>--> 1 version(IPMSG版本):no(消息编号，可以用系统时间):user(发送消息的用户名):host(发送消息的主机名):command(上述Command常量，可以用|组合多个值):msg(消息内容)

示例(向IPMSG发送消息，需要先打开对方的IPMSG)：

<!--<br><br>Code highlighting produced by Actipro CodeHighlighter (freeware)<br>http://www.CodeHighlighter.com/<br><br>--> 1 import java.io.IOException;
2 import java.net.DatagramPacket;
3 import java.net.DatagramSocket;
4 import java.net.InetAddress;
5 import java.net.SocketException;
6 import java.net.UnknownHostException;
7 import java.util.Date;
8
9 /**
10 * @author 乱78糟 http://blog.csdn.net/comstep
11 */
12 public class TestIPMSG
13 {
14 public static void main(String[]args)
15 {
16 DatagramSocketsocket;
17 InetAddressaddress;
18
19 long IPMSG_SENDMSG = 0x00000020 ;
20
21 StringSENDER = " 乱78糟 " ;
22 StringHOST = " Localhost " ;
23 StringMSG_CONTENT = " HelloWorld! " ;
24
25 try
26 {
27 socket = new DatagramSocket();
28 address = InetAddress.getByName( " 192.168.1.20 " ); // 发送给消息的地址
29
30 /**
31 *IPMSG收发数据包的格式（一行）：
32 *
33 *version(IPMSG版本):no(消息编号，可以用系统时间):user(发送消息的用户名):
34 *host(发送消息的主机名):command(上述Command常量，可以用|组合多个值):
35 *msg(消息内容)
36 *
37 */
38 byte []buffer = ( " 1: " + new Date().getTime() + " : " + SENDER + " : " + HOST
39 + " : " + IPMSG_SENDMSG + " : " + MSG_CONTENT).getBytes();
40
41 DatagramPacketpacket = new DatagramPacket(buffer,buffer.length,
42 address, 2425 );
43 socket.send(packet); // 发送报文
44
45 packet = new DatagramPacket(buffer,buffer.length);
46 socket.receive(packet); // 接收回应
47
48 Stringmessage = new String(packet.getData()); // 得到报文信息
49
50 System.out.println(message); // 显示对方返回的信息
51 }
52 catch (UnknownHostExceptione)
53 {
54 e.printStackTrace();
55 }
56 catch (SocketExceptione)
57 {
58 e.printStackTrace();
59 }
60
61 catch (IOExceptione)
62 {
63 e.printStackTrace();
64 }
65
66 }
67
68 }
69

你可以在 SourceForge 找到开源的 IP MSG for Java