from andriod i am trying to upload image and i am using web services in java
下面是Android部分
1 2 3 4 5 6 | new MultipartUploadRequest(this,uploadid,UPLOAD_URL) .addFileToUpload(path,"image") .addParameter("name",name) .setNotificationConfig(new UploadNotificationConfig()) .setMaxRetries(2) .startUpload(); |
下面是我在Web服务中的Java控制器
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | @RequestMapping(value ="/uploadm",method=RequestMethod.POST) public void submitQuestionuploading(@RequestBody String image) throws Exception { System.out.println(1+""+image); try { byte[] bytes = image.getBytes(); System.out.println(11); BufferedOutputStream stream =new BufferedOutputStream(new FileOutputStream(new File(UPLOAD_DIRECTORY +"11.png"))); stream.write(bytes); stream.flush(); stream.close(); } catch (Exception e) { System.out.println(e); } |
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输出是我在控制台中得到的,但文件已创建,但它已损坏,大小为0字节,
---------AndroidUploadService1518510071115 Content-Disposition: form-data; name="image"; filename="IMG_20180211_000033.jpg"
Content-Type: image/jpeg???á3?Exif
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我试图把它放到Java控制器中,但是它不工作。
@RequestMapping(value ="/upload", method = RequestMethod.POST ,
headers ="Content-Type=multipart/form-data") public String
fileUpload(@RequestParam("image") CommonsMultipartFile file) {}
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但我只想在春季做一件事,帮助我上传文件。
这是一个工作文件上传程序
1 2 3 4 5 6 7 8 9 10 11 | @ResponseStatus(code = HttpStatus.CREATED) @RequestMapping(value ="asset", method = RequestMethod.POST, consumes = { MediaType.MULTIPART_FORM_DATA_VALUE}, produces = MediaType.APPLICATION_JSON_UTF8_VALUE) @ResponseBody public String uploadImage( @RequestParam("image") MultipartFile file) { byte[] bytes = file.getBytes(); //do something with byte return"ok or anything you want to return"; } |
另外,您还需要将multipartresolver注册为depandency。
1 2 3 4 5 6 | @Bean(name ="multipartResolver") public CommonsMultipartResolver multipartResolver() { CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver(); multipartResolver.setMaxUploadSize(100000); return multipartResolver; } |
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您可以部署此代码,然后使用postman进行测试。
有各种各样的教程。你可以看看
https://www.boraji.com/spring-4-mvc-file-upload-example-with-commons-fileupload