java bufferedimage是什么，让我们一起了解一下？
BufferedImage是Image的一个子类，Image和BufferedImage的主要作用就是将一副图片加载到内存中。生成的图片在内存里有一个图像缓冲区，利用这个缓冲区我们可以很方便的操作这个图片，通常用来做图片修改操作如大小变换、图片变灰、设置图片透明或不透明等。
如果Java想将一副图片加载到内存中的方法是：BufferedImage bufferedImage = ImageIO.read(new FileInputStream(filePath));
那么如果想编写一个网络程序，通过Socket将图片从服务器端传到客户端，并存入文件系统，该如何操作？
示例如下：
Server端：
package org.exam3;
import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.net.ServerSocket;
import java.net.Socket;
import javax.imageio.ImageIO;
public class T6Server {
public static void main(String[] args) throws Exception {
ServerSocket server = new ServerSocket(8888);
Socket s = server.accept();
DataOutputStream dout = new DataOutputStream(s.getOutputStream());
BufferedImage image = ImageIO.read(new File("1.gif"));
ByteArrayOutputStream out = new ByteArrayOutputStream();
boolean flag = ImageIO.write(image, "gif", out);
byte[] b = out.toByteArray();
dout.write(b);
s.close();
}
}
Client端：
package org.exam3;
import java.awt.BorderLayout;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.DataInputStream;
import java.io.File;
import java.io.PrintWriter;
import java.net.Socket;
import javax.imageio.ImageIO;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class T6Client extends JFrame {
JButton button;
MyPanel panel;
public T6Client() {
setSize(300, 400);
button = new JButton("获取图像");
add(button,BorderLayout.NORTH);
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent event) {
try {
Socket s = new Socket("localhost",8888);
PrintWriter out = new PrintWriter(s.getOutputStream());
out.print("a");
DataInputStream in = new DataInputStream(s.getInputStream());
byte[]b = new byte[1000000];
in.read(b);
ByteArrayInputStream bin = new ByteArrayInputStream(b);
BufferedImage image = ImageIO.read(bin);
ImageIO.write(image, "gif", new File("2.gif"));
s.close();
} catch (Exception e) {
}
}
});
panel = new MyPanel();
add(panel);
}
public static void main(String[] args) throws Exception {
T6Client frame = new T6Client();
frame.setDefaultCloseOperation(J以上就是小编今天的分享了，希望可以帮助到大家。