Programmiererforum

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@GetMapping("/thumbnail/{imageName}")
@PreAuthorize("hasRole('BASIC')")
public ResponseEntity natalChartThumbnail() throws IOException {

ByteArrayOutputStream os = new ByteArrayOutputStream();

// 🔹 Generate thumbnail
BufferedImage bufferedImage = Thumbnails.of(new File("/usr/local/bin/tmp/scaled_sun_in_cancer_moon_in_aquarius.jpg"))
.scale(1.0)
.asBufferedImage();

ImageIO.write(bufferedImage, "jpg", os);
InputStream is = new ByteArrayInputStream(os.toByteArray());

return ResponseEntity.ok()
.contentType(MediaType.parseMediaType("image/jpg"))
.body(new InputStreamResource(is));

}

Code: Select all

 return ResponseEntity.ok()
.contentType(MediaType.parseMediaType("image/jpeg"))
.body(new InputStreamResource(is));