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

问题描述

我有来自第 3 方的回复，如下所示

[
    {
        "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",
    }
]

我们有一堂课。

@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错误

错误 com.openbet.commons.sdk.common.util.RequestSenderImpl - HTTP 交换期间出现意外异常：org.springframework.http.converter.HttpMessageNotReadableException：JSON 解析错误：无法反序列com.document.GetDetails化 START_ARRAY 令牌的实例；嵌套异常是 com.fasterxml.jackson.databind.exc.MismatchedInputException：无法反序列com.document.GetDetails化 START_ARRAY 标记的实例

有人可以建议我在这里做错了什么吗？

标签： springjava-8jackson

解决方案

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

您的案例的方法签名示例。

json 中没有 details 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",
    }
  ]
}

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