java 如何在java中获取图像文件（BufferedImage）的格式（例如：jpen，png，gif）
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How to get the format(ex:jpen,png,gif) of image file (BufferedImage) in java
提问by VICKY-TSC
i want to get the buffered image format or type of image using java,
我想使用java获取缓冲图像格式或图像类型，
InputStream stream = request.getResponseStream();
BufferedImage image= ImageIO.read(stream);
LOGGER.info(image);
回答by dgregory
Refer the javax.imageio.ImageIO.read()code
参考javax.imageio.ImageIO.read()代码
This code originally implemented in groovy but translated into java so It may have a syntax error.
这段代码最初是用 groovy 实现的，但翻译成 java 所以它可能有语法错误。
public String read(InputStream input) throws IOException {
ImageInputStream stream = ImageIO.createImageInputStream(input);
Iterator iter = ImageIO.getImageReaders(stream);
if (!iter.hasNext()) {
return null;
}
ImageReader reader = (ImageReader) iter.next();
ImageReadParam param = reader.getDefaultReadParam();
reader.setInput(stream, true, true);
BufferedImage bi;
try {
bi = reader.read(0, param);
return reader.getFormatName();
} finally {
reader.dispose();
stream.close();
}
}
回答by Mahesh
This code might help you to get the extension of image
此代码可能会帮助您获得图像的扩展名
public static String getFormate(String ImageName) {
return (ImageName.substring(ImageName.indexOf('.'),ImageName.length()));
}
In the above code first it searches dot(.) and with help of substring() it will return the extension
在上面的代码中，它首先搜索 dot(.) 并在 substring() 的帮助下返回扩展名
