解决java.io.FileNotFoundException: D:\tempfile (拒绝访问。)

问题：java.io.FileNotFoundException: D:\tempfile (拒绝访问。)at java.io.FileOutputStream.open(Native Method)at java.io.FileOutputStream.(FileOutputStream.java:221)at java.io.FileOutputStream.(FileOutputStream.java:171)at com.sh.xy.servlet.UploadServlet.doPost(UploadServlet.java:55)at
javax.servlet.http.HttpServlet.service(HttpServlet.java:648)at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)...

解决办法：在填写文件的路径时一定要具体到文件

源码：public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
System.out.println("已经接收到请求");

//从request当中获取流信息
InputStream fileSource = request.getInputStream();
String tempFileName = "D:/tempfile.png";

//tempFile指向临时文件
File tempFile = new File(tempFileName);

//outputStream文件输出流指向这个临时文件
FileOutputStream outputStream = new FileOutputStream(tempFile);
byte b[] = new byte[1024];
int n;
while((n=fileSource.read(b)) != -1){
outputStream.write(b, 0, n);
}

//关闭输入输出流
outputStream.close();
fileSource.close();
}

}