java中如何通过socket发送图像数据类型

我真的很困惑如何通过套接字发送图像数据类型。请帮帮我。我已经研究了如何将图像数据类型转换为char[]，但结果是0。

使用write方法。

尝试以下方法：

InputStream inp = new FileInputStream("image.png");
byte[] buffer=new byte[1024];
int readData;
while((readData = inp.read(buffer))!=-1){
socketOutput.write(buffer,0,readData);
}

---

您可以使用此方法（）将

图像

转换为

缓冲图像

：

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然后，您可以使用方法编写生成的

buffereImage

。

Why char[]？它不应该是byte[]吗？你可以将图像转换成byte数组，然后将数组发送到socket，然后在另一端将byte数组转换成图像。我认为它可以用char[]或byte[]发送，对吗？当然是Java中的图像数据类型。如整数、字符或字符串等。

char[]

包含字符，

byte[]

包含字节。您的图像包含字节，而不是字符。我已经尝试过了，但是ImageIo.write必须使用RenderImageChar[]或byte[]之类的RenderImage来实现。我无法将图像转换为字符[]或字节[]。抱歉，我忘了告诉您我的图像是从相机获取的，而不是从文件获取的。我必须如何处理图像数据类型？您可以将图像保存到一个临时文件并传输文件。请帮助我理解max:@ChristoforusSurjoputro好了，我对每一行代码都发表了评论。非常感谢max。您太好了。：）公共缓冲区图像toBufferedImage（最终图像，最终整型）{如果（BuffereImage的映像实例）返回（BuffereImage）映像；如果（VolatileImage的映像实例）返回（（VolatileImage）映像）.getSnapshot（）；final BuffereImage buffImg=new BuffereImage（image.getWidth（null），image.getHeight（null），type）；返回buffImg；}我有一个问题。图像是如何转换为缓冲图像的？我没有在那个程序中看到做这项工作的。但是它工作得很好。。谢谢。：）@ChristoforusSurjoputro在我的代码中，这部分做转换部分：

g2.drawImage（图像，null，null）。如果你的代码有效（注释中的代码），这意味着你很幸运，已经有了BuffereImage或VolatileImage。
public BufferedImage toBufferedImage(final Image image, final int type) {
    //Test if image does not need conversion
    if (image instanceof BufferedImage)
        return (BufferedImage) image;
    //Check if image can be converted easily
    if (image instanceof VolatileImage)
        return ((VolatileImage) image).getSnapshot();
    //loadImage method ensures that the image has loaded fully (it could be from the web or something). If you are sure that when this method is called - the image is loaded, you can remove this line and whole method.
    loadImage(image);
    //Create new BufferedImage with the same width and height and given data type (see constants in BufferedImage API)
    final BufferedImage buffImg = new BufferedImage(image.getWidth(null), image.getHeight(null), type);
    //Get graphics out of our new BufferedImage. Graphics2D is used to draw something on the image
    final Graphics2D g2 = buffImg.createGraphics();
    //Use Graphics2D to draw our Image contents on top of BufferedImage
    g2.drawImage(image, null, null);
    //We no longer need our graphics object as we drawn everything we wanted
    g2.dispose();
    //Return BufferedImage
    return buffImg;
}

//Method that ensures that the image was loaded succesfully
private void loadImage(final Image image) {
    //Inner class implementing the ImageObserver interface. It will be used to track the image loading progress
    class StatusObserver implements ImageObserver {
        boolean imageLoaded = false;
            //Each time an image updates - it will call this method
        public boolean imageUpdate(final Image img, final int infoflags, 
              final int x, final int y, final int width, final int height) {
                    //When flags contains ALLBITS flag - that means that the image was fully loaded.
            if (infoflags == ALLBITS) {
                synchronized (this) {
                                    //Therefore we set status to true
                    imageLoaded = true;
                                    //And notify anyone who was waiting for our job to be done
                    notify();
                }
                return true;
            }
            return false;
        }
    }
    //Then we create the observer itself
    final StatusObserver imageStatus = new StatusObserver();
    //We aquire it's monitor with this synchronized block. This will allow us to "wait" for it to complete loading (see notify() in StatusObserver)
    synchronized (imageStatus) {
            //Basically if image is loaded - it will have it's width and height set
        if (image.getWidth(imageStatus) == -1 || image.getHeight(imageStatus) == -1) {
                    //While status observer is not loaded
            while (!imageStatus.imageLoaded) {
                try {
                                    //We wait for status observer to notify us
                    imageStatus.wait();
                } catch (InterruptedException ex) {}
            }
        }
    }
}