Spring boot访问请求完成前的多部分请求(文件上传)标头

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
</dependency>

import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

@RestController
public class FileUploadController {

    @PostMapping("/upload")
    public ResponseEntity<String> uploadFile(@RequestParam("file") MultipartFile file) {
        // 处理文件上传逻辑
        // 可以使用file.getInputStream()获取文件内容
        // 可以使用file.getOriginalFilename()获取文件名
        // 可以使用file.getSize()获取文件大小
        
        return new ResponseEntity<>("File uploaded successfully!", HttpStatus.OK);
    }
}

spring.servlet.multipart.max-file-size=10MB
spring.servlet.multipart.max-request-size=10MB

<form action="/upload" method="POST" enctype="multipart/form-data">
    <input type="file" name="file">
    <input type="submit" value="Upload">
</form>