Question

我正在使用spring boot构建项目，我想将图像上传到服务器（在我的本地服务器上）。

上传文件的代码是：

@Controller
@RequestMapping("/api/v1")
public class ImageController {

    @RequestMapping(value="/upload", method=RequestMethod.GET)
    public @ResponseBody String provideUploadInfo() {
        return "You can upload a file by posting to this same URL.";
    }

    @RequestMapping(value="/upload", method=RequestMethod.POST)
    public @ResponseBody String handleFileUpload(@RequestParam("name") String name,@RequestParam("email") String email,
            @RequestParam("file") MultipartFile file){
        if (!file.isEmpty()) {
             BufferedImage src;
            try {
                src = ImageIO.read(new ByteArrayInputStream(file.getBytes()));
             File destination = new File("/"+System.getProperty("user.home")+"/samepinchbucket/"+email+"/pics/"); 
                 ImageIO.write(src, "png", destination);
             //Save the id you have used to create the file name in the DB. You can retrieve the image in future with the ID.
             return "You successfully uploaded " + name + "!";
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
                return "You failed to upload " + name + " => " + e.getMessage();
            }
             }else{
                 return "You failed to upload " + name + " because the file was empty.";
             }
    }

}

此代码工作正常，但图片正在myfolder上传，pics作为图片名称，但我的要求是图片应上传到pics文件夹中而不是{{1} }}

Answer 1

您应该只使用不同的File构造函数，例如

String folder = "/"+System.getProperty("user.home")+ "/samepinchbucket/"+email+"/pics/";
File destination = new File(folder, file.getOriginalFilename());

这会将文件存储在原始文件名

下的文件夹pics中

Answer 2

从您的代码中，您似乎正在使用一些带有Spring的Java Web服务器。

假设getImageDirPath()方法返回相对于tomcat服务器主目录的imagePath：

  private static String getImageDirPath(String email) {
    String envVal = null;
    String rootPath = System.getProperty("catalina.home");
    File dir = new File(rootPath + File.separator + "samepinchbucket" + File.separator + 
                        email+File.separator + "pics" + File.separator);
    if (!dir.exists())
        dir.mkdirs();
    return dir.getAbsolutePath() + File.separator;
}

参考：http://www.proactiveclass.com/tutorials/java/spring/image-upload-android-app-using-spring-tomcat-server

如何将图像上传到服务器？

2 个答案: