java.io.FileNotFoundException:（访问被拒绝）
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java.io.FileNotFoundException: (Access is denied)
提问by Imesh Chandrasiri
I'm trying to create some files dynamically in my Java project root. but I get the following error when I run the code.
我正在尝试在我的 Java 项目根中动态创建一些文件。但是当我运行代码时出现以下错误。
java.io.FileNotFoundException: D:\POS_ALL\T_POS_NEWEST\TouchPosApplication\WebContent\zharaimages9 (Access is denied)
Is it possible to write a file to the root project folder in Java? Here is the code used.
是否可以在 Java 中将文件写入根项目文件夹？这是使用的代码。
private void createImage(PosItemImageDTO imageDTO,String path) throws IOException {
byte[] bytes = imageDTO.getPosItemImage();
path = path + "\";
if(bytes!=null && bytes.length>0){
OutputStream out = null;
// BufferedImage img = ImageIO.read(new ByteArrayInputStream(bytes));
File l = new File(path);
out = new BufferedOutputStream(new FileOutputStream(path));
out.write(bytes);
if (out != null) {
out.close();
}
}
}
回答by voidMainReturn
Its because it seems like you are trying to open and read a directory here. Your file as you say it, doesn't have any extension specified so java takes it as a directory. use isFile()method to check for a file before opening. You can use listFiles()method to obtain files of the directory.
这是因为您似乎正在尝试在此处打开和读取目录。您所说的文件没有指定任何扩展名，因此 java 将其作为目录。isFile()在打开文件之前使用方法检查文件。您可以使用listFiles()方法来获取目录的文件。
回答by lbear
Please make sure path = path + "\\";is a correct path. If there is a directory, the program will show you Access is denied. You should add some checks before open the file, just like if (l.isDirectory()).
请确保path = path + "\\";路径正确。如果有目录，程序会显示给你Access is denied。您应该在打开文件之前添加一些检查，就像if (l.isDirectory()).
