如何将图像写入文件– Java ImageIO

Question

I would like to write an image to a file using Java ImageIO. This is my piece of code:

Document doc = convertDocument (fileName, "grey");                       
      ImageIO.write(Converter.convertSVGToPNG(doc), "png",
              new File(FOLDER_PNG_OUT_GREY + fileName.replaceAll(".svg", ".png")));

But I get this error when running my code:

java.io.FileNotFoundException: C:\\Work\\eclipse-tdk\\svgManager\\svgManager\\src\\main\\resources\\icons\\svg\\grey_png\\$pac.png (The system cannot find the path specified)

I also tried:

String pngFileName = FOLDER_PNG_OUT_GREY + fileName.replaceAll(".svg", ".png");
File outputfile = new File(pngFileName);
bImage = ImageIO.read(outputfile);

but then I got the error: Can't read input file!

Answer 1

我建议使用getResource(String file)方法获取图像资源，如下所示：

File initialImage = new File(YourClass.class.getResource("pac.png").getFile());