Question

我正在尝试使用angular js + spring boot上传excel文件。文件上传成功，但文件似乎已损坏。我无法打开文件。这是我的代码。

的index.html

<p align="right">
    <input type = "file" id="file" name="file"/>
    <button ng-click="uploadFile()">Upload</button>
</p>

controller.js

function uploadFile() {

        var file = document.getElementById('file').files[0];
        console.log('file is ' );
        console.log(file);

        var uploadUrl = "/uploadAsExcel";

        var fd = new FormData();
        fd.append('uploadfile', file);

        $http.post(uploadUrl, fd, {
           transformRequest: angular.identity,
           headers: {'Content-Type': undefined}
        })

        .success(function(){
        })

        .error(function(){
        });
    }

Controller.java

@RequestMapping(value = "/uploadAsExcel", method = RequestMethod.POST)
@ResponseBody
public ResponseEntity<?> uploadFile(@RequestParam("uploadfile") MultipartFile uploadfile) {

    try {
        // Get the filename and build the local file path
        String filename = uploadfile.getOriginalFilename();
        String contentType = uploadfile.getContentType();
        System.out.println("ContentType: "+contentType);
        String filepath = "C:\\Users\\user122\\Documents\\MyFiles\\"+filename;

        //Save the file locally
        BufferedOutputStream stream =
                new BufferedOutputStream(new FileOutputStream(new File(filepath)));
        stream.write(uploadfile.getBytes());
        stream.close();
    }
    catch (Exception e) {
        System.out.println(e.getMessage());
        return new ResponseEntity<>(HttpStatus.BAD_REQUEST);
    }

    return new ResponseEntity<>(HttpStatus.OK);
}

WebConfig.java

@Bean
public CommonsMultipartResolver multipartResolver() {
    CommonsMultipartResolver resolver=new CommonsMultipartResolver();
    //resolver.setDefaultEncoding("utf-8");
    resolver.setMaxUploadSize(-1);
    return resolver;
}

Excel文件上传成功，但是当我打开文件时，它会显示“文件已损坏”。基本上，我需要使用Excel API读取excel文件并执行一些操作。

你能帮助别人吗？

谢谢， KARTHIK

使用Spring Boot + Angular JS上传时Excel文件损坏

0 个答案: