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我在我的網站上傳圖像時遇到問題。有時候,它會上傳。但有時它也會說can’t create cache file
。我如何解決它?無法在Java中創建緩存文件
這裏是我的代碼:
File file = new File(imagePath);
BufferedImage bi;
try{
bi = ImageIO.read(file);
}catch(javax.imageio.IIOException e){
if(request.getParameter("fi") != null){
file = new File(context.getInitParameter("ImgPath") + "placeholder/150x80.png");
}else if (request.getParameter("li") != null){
file = new File(context.getInitParameter("ImgPath") + "placeholder/150x80.png");
}
bi = ImageIO.read(file);
}
OutputStream outImg = response.getOutputStream();
File cacheDir = new File(context.getInitParameter("ImgPath") + "cache");
try {
ImageIO.setCacheDirectory(cacheDir);
ImageIO.write(bi, "png", outImg);
} catch (Exception ex) {
}
outImg.close();
Hi downvoter,你能發表評論嗎? –