标签:.net code stream catch ack author string 功能 java.net
客户端向服务器端发送一张文件(这里以图片为例),服务器发反馈消息给客户端。
package com.demo;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;
import org.junit.Test;
/**
* 功能:客户端向服务器端发送一张文件(这里以图片为例),服务器发反馈消息给客户端。
*
* @author Lynn
*
*/
public class Demo05 {
// 客户端;
@Test
public void client() {
Socket socket = null;
OutputStream os = null;
InputStream is = null;
// 先将文件读入;
FileInputStream fis = null;
try {
socket = new Socket(InetAddress.getByName("127.0.0.1"), 6868);
os = socket.getOutputStream();
is = socket.getInputStream();
fis = new FileInputStream(new File("1.jpg"));
int len;
byte[] content = new byte[156704];
while ((len = fis.read(content)) != -1) {
// 再将文件写出;
os.write(content, 0, len);
}
// 关闭客户端的输出流;
socket.shutdownOutput();
int len1;
byte[] content1 = new byte[20];
while ((len1 = is.read(content1)) != -1) {
String str = new String(content1, 0, len1);
System.out.println(str);
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
if (is != null) {
try {
is.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (os != null) {
try {
os.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (fis != null) {
try {
fis.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (socket != null) {
try {
socket.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
// 服务器端;
@Test
public void server() {
ServerSocket serverSocket =null;
Socket socket = null;
InputStream is = null;
OutputStream os = null;
FileOutputStream fos = null;
try {
serverSocket = new ServerSocket(6868);
socket = serverSocket.accept();
is = socket.getInputStream();
os = socket.getOutputStream();
fos = new FileOutputStream("2.jpg");
int len;
byte[] content = new byte[156704];
while((len=is.read(content))!=-1) {
fos.write(content,0,len);
}
os.write("成功接收文件!".getBytes());
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}finally {
if(os!=null) {
try {
os.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if(fos!=null) {
try {
fos.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if(is!=null) {
try {
is.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if(socket!=null) {
try {
socket.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if(serverSocket!=null) {
try {
serverSocket.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
}
1、这里的路径是整个工程的路径,不是当前文件包的路径。
2、使用JUit测试的时候需要将方法的修饰符设为public,不能使用默认的,否则会出错。
标签:.net code stream catch ack author string 功能 java.net
原文地址:https://www.cnblogs.com/SnailsRunning/p/10124192.html