[英]JApplet does not showing JPanel with image
Hello I use a JApplet to show a Jpanel with an image that I get from the network but the applet is loading and not showing the image. 您好,我使用JApplet向Jpanel展示了从网络上获取的图像,但是applet正在加载且未显示图像。
Code: 码:
package com.ntenisot; 包com.ntenisot;
import java.io.*;
import java.net.*;
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import java.applet.*;
public class Cliente extends JApplet {
JTextField tf;
Lienzo lienzo;
Socket con;
ObjectOutputStream salida;
ObjectInputStream entrada;
public void init(){
System.out.println("initializing");
tf = new JTextField(10);
lienzo=new Lienzo();
setSize(1000,1000);
lienzo.setSize(900,900);
lienzo.setVisible(true);
setContentPane(lienzo);
Container container = getContentPane();
container.setBackground(Color.pink);
container.setLayout(new FlowLayout());
// Text area 1
String string = "Some text in here, Some text in here, Some text in here";
JTextArea textArea1 = new JTextArea(string, 10, 15);
container.add(new JScrollPane(textArea1));
}
public void start() {
ejecutar();
}
void ejecutar(){
System.out.println("executing1");
try{
con = new Socket("127.0.0.1",5700);
salida = new ObjectOutputStream(con.getOutputStream());
salida.flush();
entrada = new ObjectInputStream(con.getInputStream());
System.out.println("executing");
procesar();
}
catch(IOException e){
System.out.println("error");
}
}
void procesar() throws IOException {
System.out.println("processing");
try{
while(true){
ImageIcon img = (ImageIcon) entrada.readObject();
escribir(img);
}
}catch(ClassNotFoundException e){}
}
void escribir(final ImageIcon img){
SwingUtilities.invokeLater(
new Runnable(){
public void run(){
lienzo.pinta(img);
}
}
);
}
class Lienzo extends JPanel{
ImageIcon img=null ;
public void pinta(ImageIcon img){
this.img=img;
repaint();
}
public void paintComponent(Graphics g){
super.paintComponent(g);
if(img!=null)
img.paintIcon(this,g,10,10);
}
}
}
I did not test your code, but it seems method procesar cannot terminate. 我没有测试您的代码,但是方法procesar似乎无法终止。 Therefore, the method init will also not terminate.
因此,方法初始化也不会终止。 I think you could remove the surrounding while (true) loop, as setting the image once is enough.
我认为您可以删除周围的while(true)循环,因为只需设置一次图像就足够了。
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