客户端:
package inet;
import java.io.File;
import java.io.FileInputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;
public class TcpClientDemo2 {
public static void main(String[] args) throws Exception {
//1.创建一个socket连接
Socket socket=new Socket(InetAddress.getByName("127.0.0.1"),9000);
//2.创建一个输出流
OutputStream os= socket.getOutputStream();
//3.读取文件
FileInputStream fis=new FileInputStream(new File("1.jpg"));
//4.写出文件
byte[] bytes=new byte[1024];
int len=0;
while((len=fis.read(bytes))!=-1){
os.write(bytes,0,len);
}
//5.关闭资源
fis.close();
os.close();
socket.close();
}
}
服务端:
package inet;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.ServerSocket;
import java.net.Socket;
public class TcpServerDemo2 {
public static void main(String[] args) throws IOException {
//创建服务
ServerSocket serverSocket=new ServerSocket(9000);
//监听客户端连接
Socket socket=serverSocket.accept();//阻塞式监听,会一直等待客户端连接
//获取输入流
InputStream is=socket.getInputStream();
//文件输出
FileOutputStream os=new FileOutputStream("E:\\2021.jpg");
byte[] bytes=new byte[1024];
int len=0;
while((len=is.read(bytes))!=-1){
os.write(bytes,0,len);
}
//关闭资源
os.close();
is.close();
socket.close();
serverSocket.close();
}
}
加上消息的传输后:
客户端:
package inet;
import java.io.*;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;
public class TcpClientDemo2 {
public static void main(String[] args) throws Exception {
//1.创建一个socket连接
Socket socket=new Socket(InetAddress.getByName("127.0.0.1"),9000);
//2.创建一个输出流
OutputStream os= socket.getOutputStream();
//3.读取文件
FileInputStream fis=new FileInputStream(new File("1.jpg"));
//4.写出文件
byte[] bytes=new byte[1024];
int len=0;
while((len=fis.read(bytes))!=-1){
os.write(bytes,0,len);
}
//通知服务器我已经传输完毕
socket.shutdownOutput();//我已经传输完了
//确定服务器接收到了,才能断开连接
InputStream inputStream=socket.getInputStream();
ByteArrayOutputStream baos=new ByteArrayOutputStream();
byte[] bytes2=new byte[1024];
int len2=0;
while((len2=inputStream.read(bytes2))!=-1){
baos.write(bytes2,0,len2);
}
System.out.println(baos.toString());
//5.关闭资源
baos.close();
inputStream.close();
fis.close();
os.close();
socket.close();
}
}
服务端:
package inet;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.nio.charset.StandardCharsets;
public class TcpServerDemo2 {
public static void main(String[] args) throws IOException {
//创建服务
ServerSocket serverSocket=new ServerSocket(9000);
//监听客户端连接
Socket socket=serverSocket.accept();//阻塞式监听,会一直等待客户端连接
//获取输入流
InputStream is=socket.getInputStream();
//文件输出
FileOutputStream os=new FileOutputStream("E:\\2021.jpg");
byte[] bytes=new byte[1024];
int len=0;
while((len=is.read(bytes))!=-1){
os.write(bytes,0,len);
}
//通知客户端已接收完毕
OutputStream outputStream=socket.getOutputStream();
outputStream.write("我接收完毕了,你可以断开了".getBytes());
//关闭资源
outputStream.close();
os.close();
is.close();
socket.close();
serverSocket.close();
}
}