org.springframework.http.converter.HttpMessageNotReadableException: JSON 解析错误

Question

我收到了如下第 3 方的回复

[
    {
        "url": "https://abc/10",
        "created": "2021-02-26 10:45:14",
        "status": "approved",
        "ref": "12452",
        "brand": "edr",
        "reason": "jkjkj"
    },
    {
        "url": "https://bvc/20",
        "created": "2021-02-26 10:43:18",
        "status": "rejected",
        "ref": "14562",
        "brand": "yghj",
        "reason": "asd",
    }
]

我们有 class.

@JsonInclude(JsonInclude.Include.NON_NULL)
@JsonIgnoreProperties(ignoreUnknown = true)
public class GetDetails {

    private List<Detail> details = new ArrayList<>();

// getters, setters and toString() 
    
}

@JsonInclude(JsonInclude.Include.NON_NULL)
@JsonIgnoreProperties(ignoreUnknown = true)
public class Detail {

    @JsonProperty(value = "url")
    private String url;

    @JsonProperty(value = "created")
    private Instant created;

    @JsonProperty(value = "status")
    private String status;

    @JsonProperty(value = "ref")
    private String ref;

    @JsonProperty(value = "brand")
    private String brand;

    @JsonProperty(value = "reason")
    private String reason;

//Getters, Setters and toString()

}

但是在转换时我们遇到了以下错误

ERROR com.openbet.commons.sdk.common.util.RequestSenderImpl - Unexpected exception during HTTP exchange: org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Cannot deserialize instance of com.document.GetDetails out of START_ARRAY token; nested exception is com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize instance of com.document.GetDetails out of START_ARRAY token

有人可以告诉我我在这里做错了什么吗？

Answer 1

public ResponseEntity<?> getDetails(@RequestBody List<Detail> details){}

您案例的方法签名示例。

json

中没有详细信息属性

您正在尝试转换下面的示例，因此您无法转换它

{
  details : [
    {
        "url": "https://abc/10",
        "created": "2021-02-26 10:45:14",
        "status": "approved",
        "ref": "12452",
        "brand": "edr",
        "reason": "jkjkj"
    },
    {
        "url": "https://bvc/20",
        "created": "2021-02-26 10:43:18",
        "status": "rejected",
        "ref": "14562",
        "brand": "yghj",
        "reason": "asd",
    }
  ]
}

org.springframework.http.converter.HttpMessageNotReadableException: JSON 解析错误

org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error

spring

jackson

java-8