关于java网络编程的基础问题,已经附带源代码网络编程广播java代码你需要用一个list 管理 所有网络编程广播java代码的客户端socket。
Socket socket = ss.accept();
socketList.add(socket )
然后 再依次向么个socket 输出
for (Iterator iterator = socketList.iterator(); iterator.hasNext();) {
Socket object = (Socket) iterator.next();
OutputStream os = socket.getOutputStream();
DataOutputStream dis = new DataOutputStream(os);
dis.writeUTF( “message”);
}
java网络编程可以尝试把自己网络编程广播java代码的电脑设置成服务器
java socket网络编程//==============Server.java=================//
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
public class Server {
public static void main(String[] args) throws IOException {
ServerSocket s = new ServerSocket(12345);
System.out.println("服务器就绪,请启动客户端.");
Socket so = s.accept();
byte[] buff = new byte[1024];
int read = so.getInputStream().read(buff);
String[] abc=new String(buff,0,read).split("\\D ");
int a = Integer.parseInt(abc[0]);
int b = Integer.parseInt(abc[1]);
int c = Integer.parseInt(abc[2]);
if(!cbt(a,b,c))
so.getOutputStream().write("输入的数据无法组成三角形.".getBytes());
else
so.getOutputStream().write(getArea(a,b,c).getBytes());
so.getOutputStream().flush();
so.close();
s.close();
}
private static String getArea(int a, int b, int c) {
float s = (a b c)/2f;
return "面积: " Math.sqrt(s*(s-a)*(s-b)*(s-c));
}
private static boolean cbt(int a, int b, int c) {
return a0b0c0a bcb caa cb;
}
}
//=================Client.java======================//
import java.io.IOException;
import java.net.Socket;
import java.net.UnknownHostException;
public class Client {
public static void main(String[] args) throws UnknownHostException, IOException {
System.out.println("输入三角形的三边并用逗号隔开,如: (3,4,5) ");
byte[] buff=new byte[64];
int r = System.in.read(buff);
String ipaddr = "localhost";//根据情况改变,在本机调试就不改了
Socket so = new Socket(ipaddr,12345);
so.getOutputStream().write(new String(buff,0,r).getBytes());
r = so.getInputStream().read(buff);
so.close();
String rs = new String(buff,0,r);
System.out.println(rs);
}
}
//先启动Server,再启动Client
java编程:如何输出网络地址 子网掩码 广播地址import java.net.InetAddress;
import java.net.InterfaceAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.util.List;
public class Test {
public static void main(String[] args) throws UnknownHostException, SocketException {
InetAddress address = InetAddress.getLocalHost();
System.out.println(address.getHostAddress());// 输出IP地址
NetworkInterface netInterface = NetworkInterface.getByInetAddress(address);
if (!netInterface.isLoopback()netInterface.isUp()) {
ListInterfaceAddress interfaceAddresses = netInterface.getInterfaceAddresses();
for (InterfaceAddress interfaceAddress : interfaceAddresses) {
System.out.println(interfaceAddress.getNetworkPrefixLength());// 输出子网掩码长度,24表示掩码255.255.255.0
【网络编程广播java代码 网络编程广播java代码是什么】if (interfaceAddress.getBroadcast() != null) {
System.out.println(interfaceAddress.getBroadcast().getHostAddress());// 输出广播地址
}
}
}
}
}
一个最简单的java网络编程你好:Socket s = new Socket("localhost", 6660);//14行
这个的话,你的没通,去黑窗口输入 tenlet127.0.0.1 6660;看看是否有结果输出,再就是你别用localhost了,换成实际的127.0.0.1的地址,
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