文件writestring的春季表达式可为AccessDeniedException提供

Question

inbound:
  processed:
    path: C://inbound/processed/FedEx.txt

   @Bean(name = "inboundProcessedDirectory")
        public File inboundProcessedDirectory(@Value("${inbound.processed.path}") String path) {
            return makeDir(path);
        }
    
    private File makeDir(String path) {
            File file = new File(path);
            file.mkdirs();
            return file;
        }
    
    
    Expression parser = new SpelExpressionParser();
    parser.parseExpression("T(java.nio.file.Files).writeString(T(java.nio.file.Path).of(@inboundProcessedDirectory.path), payload)");

错误：AccessDeniedException：C：\ Inbound \ condateed \ fedex.txt

有没有办法给Spel提供适当的路径？