使用java建立基于socket的c/s接收系统

http://wonka438.iteye.com/blog/1279136

使用java建立基于socket的c/s接收系统

socket ip port java c/s

//运行时输入端口

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketAddress;

public class TCPEchoServer
{

/**
* @param args
*/
private static final int BUFSIZE = 32;


public static void main(String[] args) throws IOException
{


if (args.length != 1)//获取启动服务的端口
throw new IllegalArgumentException("Parameter(s): ");

int servPort = Integer.parseInt(args[0]);

//分配一个端口用于启动server端
ServerSocket servSock = new ServerSocket(servPort);

int recvMsgSize;
byte[] receiveBuf = new byte[BUFSIZE];

while (1)
{
Socket clntSock = servSock.accept(); //接收客户端的主动连接

SocketAddress clientAddress = clntSock.getRemoteSocketAddress();
System.out.println("Handling client at " + clientAddress);

InputStream in = clntSock.getInputStream();
OutputStream out = clntSock.getOutputStream();

while ((recvMsgSize = in.read(receiveBuf)) != -1)
{
out.write(receiveBuf, 0, recvMsgSize);
}
clntSock.close();
}

}

}

//运行时输入端口

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketAddress;

public class TCPEchoServer
{

	/**
	 * @param args
	 */
	private static final int BUFSIZE = 32;


	public static void main(String[] args) throws IOException
	{


		if (args.length != 1)//获取启动服务的端口
			throw new IllegalArgumentException("Parameter(s): ");

		int servPort = Integer.parseInt(args[0]);

		//分配一个端口用于启动server端
		ServerSocket servSock = new ServerSocket(servPort);

		int recvMsgSize;
		byte[] receiveBuf = new byte[BUFSIZE];

		while (1)
		{
			Socket clntSock = servSock.accept(); //接收客户端的主动连接

			SocketAddress clientAddress = clntSock.getRemoteSocketAddress();
			System.out.println("Handling client at " + clientAddress);

			InputStream in = clntSock.getInputStream();
			OutputStream out = clntSock.getOutputStream();

			while ((recvMsgSize = in.read(receiveBuf)) != -1)
			{
				out.write(receiveBuf, 0, recvMsgSize);
			}
			clntSock.close();
		}

	}

}

运行java TCPEchoServer 8001
8001为端口号

//运行时输入 连接地址 字符 端口

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;
import java.net.SocketException;

public class TCPEchoClient
{

public static void main(String[] args) throws IOException
{

if ((args.length < 2) || (args.length > 3)) // 传入的数据在2~3之间，0：地址 1：传输字符 <2：端口>
throw new IllegalArgumentException("Parameter(s):   []");

String server = args[0]; // ip地址或主机名称

byte[] data = args[1].getBytes();

int servPort = (args.length ==  3) ? Integer.parseInt(args[2]) : 7;//默认端口为7

Socket socket = new Socket(server, servPort);
System.out.println("Connected to server...sending echo string");

InputStream in = socket.getInputStream();
OutputStream out = socket.getOutputStream();

out.write(data);

int totalBytesRcvd = 0;
int bytesRcvd;
while (totalBytesRcvd < data.length) {
if ((bytesRcvd = in.read(data, totalBytesRcvd,data.length - totalBytesRcvd)) == -1)
throw new SocketException("Connection closed prematurely");
totalBytesRcvd += bytesRcvd;
}

System.out.println("Received: " +  new String(data));

socket.close();



}
}

//运行时输入 连接地址 字符 端口

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;
import java.net.SocketException;

public class TCPEchoClient
{

	public static void main(String[] args) throws IOException
	{

		if ((args.length < 2) || (args.length > 3)) // 传入的数据在2~3之间，0：地址 1：传输字符 <2：端口>
		 throw new IllegalArgumentException("Parameter(s):   []");
			
			 String server = args[0]; // ip地址或主机名称

			 byte[] data = args[1].getBytes();
			
			 int servPort = (args.length == 3) ? Integer.parseInt(args[2]) : 7;//默认端口为7
			
			 Socket socket = new Socket(server, servPort);
			 System.out.println("Connected to server...sending echo string");
		
			 InputStream in = socket.getInputStream();
			 OutputStream out = socket.getOutputStream();
			
			 out.write(data); 
			
			 int totalBytesRcvd = 0; 
			 int bytesRcvd; 
			 while (totalBytesRcvd < data.length) {
			 if ((bytesRcvd = in.read(data, totalBytesRcvd,data.length - totalBytesRcvd)) == -1)
			 throw new SocketException("Connection closed prematurely");
			 totalBytesRcvd += bytesRcvd;
			 }
			
			 System.out.println("Received: " + new String(data));
		
			 socket.close(); 
		
		
		
	}
}

运行java TCPEchoClient 172.0.0.1 "quan" 8001
172.0.0.1为启动服务的ip
"quan"为传输的字符
8001为启动服务的端口