java接口实现图片传输给前端展示

import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.io.File;
import java.io.IOException;
import java.nio.file.Files;

@RestController
@RequestMapping("/test")
public class DemoController{

    @GetMapping("/image")
    public ResponseEntity<byte[]> getImage() throws IOException {
        File file = new File("C:\\Users\\win10-pc\\Desktop\\1.png");
        byte[] bytes = Files.readAllBytes(file.toPath());
        HttpHeaders headers = new HttpHeaders();
        headers.setContentType(MediaType.IMAGE_PNG);
        return new ResponseEntity<>(bytes, headers, HttpStatus.OK);
    }
}