jack放序列化自定义字段绑定，报错：can only instantiate non-static inner class by using default, no-argument constru

Posted 2022-06-17 passedbylove

package com.xxx;

import com.fasterxml.jackson.annotation.JsonProperty;
import lombok.Data;
import lombok.NoArgsConstructor;

import java.util.List;

public class TestJsonNode 

    @Test
    public void test()
    
        String json = "\"status\": 0, \"segment\": 0, \"result\": \"hypotheses\": [\"transcript\": \"原 的 \"], \"final\": false, \"id\": \"ba040ef0-9134-46f3-8a95-cc9b70868c07\"";
        ObjectMapper objectMapper = new ObjectMapper();
        try 
//            JsonNode node = objectMapper.readTree(json);
//            boolean containsStatusField = node.has("status");
//            if(!containsStatusField)
//            
//                System.out.println("服务器异常");
//            
//
//            int status = node.findValue("status").intValue();
            //System.out.println(status);

            ASRConversionResponse response = objectMapper.readValue(json, ASRConversionResponse.class);

            System.out.println(response);

         catch (IOException e) 
            e.printStackTrace();
        
    

@Data
@NoArgsConstructor
public class ASRConversionResponse

    private Integer status;
    private String message;

    private List<Result> result;

    @JsonProperty("segment_start") //此处为自定义字段绑定类型
    private Float segmentStart;

    @JsonProperty("segment_length")
    private Float segmentLength;

    @JsonProperty("total_length")
    private Float totalLength;

    private short segment;

    private String id;



@Data
@NoArgsConstructor
  class Result

    @JsonProperty("final")
    private Boolean _final;

    private List<Hypotheses> hypotheses;


@Data
@NoArgsConstructor
  class Hypotheses

    private Float likelihood;
    private String transcript;

出错原因:把ASRConversionResponse内部类提出来，单独新建一个类ASRConversionResponse.java