InputStreamfis=file.getInputStream();Workbookwookbook=null;Stringfilename=file.getOriginalFilename();filename=filename.trim();filename=filename.substring(0,filename.lastIndexOf("."));

Java代码@RestControllerpublicclassTestController{//单文件或多文件上传@PostMapping("/file/upload")publicStringfileUpload(@RequestParam(

@SneakyThrows注解有的jar包，没有源码看到的class文件时这样的publicBladeFileputFile(MultipartFilefile){try{returnthis.putFile(this.