json postman关于post image及其编码image的问题

Question

public class Image {

    @Id
    private String id;

    private String userId;

    private byte[] image;    

    private String extension;

    private String text;
} /with getters and setter and constructors

 @RequestMapping(value = "ocr/v1/upload", method = RequestMethod.POST, consumes = MediaType.APPLICATION_JSON_VALUE, produces = MediaType.APPLICATION_JSON_VALUE)
    public Status doOcr(@RequestBody Image image) throws Exception {
        try {
ByteArrayInputStream bis = new ByteArrayInputStream (Base64.decodeBase64 (image.getImage()));
            Tesseract tesseract = new Tesseract(); // JNA Interface Mapping
            String imageText = tesseract.doOCR(ImageIO.read(bis));
            image.setText(imageText);
            repository.save(image);
            LOGGER.debug("OCR Result = " + imageText);
        } catch (Exception e) {
     LOGGER.error("TessearctException while converting/uploading image: ", e);
            throw new TesseractException();
        }
        return new Status("success");    }

    {   
        "image": {  
            "userId": "arun0009",   
            "extension": ".png",    
            "text": "WlgSmI3XGrnq31Uy6Vfnuo/qnHz1K8Z1+e4flJXk"
        }
    }

    @Test
    public void testDoOcr() throws IOException 
    {
    Map<String, String> headers = new HashMap<String, String>();
    headers.put("Accept", MediaType.APPLICATION_JSON_VALUE);
    headers.put("Content-Type", MediaType.APPLICATION_JSON_VALUE);

        Image image = new Image();
        InputStream inputStream = ClassLoader.getSystemResourceAsStream("eurotext.png");
        image.setUserId("arun0009");
        image.setExtension(".png");
        image.setImage(Base64.encodeBase64(IOUtils.toByteArray(inputStream)));
        String response = given().contentType("application/json").headers(headers).body(image).when().post("http://localhost:8080/ocr/v1/upload").then()
            .statusCode(200).extract().response().body().asString();
        System.out.println(response);
    }

“status”：400,“error”：“bad request”,“message”：“JSON parse error：无法从START_ARRAY令牌反序列化com.tess4j.rest.model.image实例；嵌套异常是com.fasterxml.jackson.databind.exc.mismatchedinputexception：无法从START_ARRAY令牌反序列化com.tess4j.rest.model.image实例\n在[源：（PushbackInputStream）；行：1,列：1]”,“

Answer 1

我真的认为你的问题是转化。尝试使用类似的注释来忽略JSON中没有传递的字段：

@JsonIgnore
@JsonProperty(value = "user_password")
public String userPassword;

引用：当从Spring MVC作为JSON发送时，动态地忽略Java对象中的字段。

编辑