HttpMessageNotReadableException: JSON 解析错误

Question

这是我正在尝试使用的 class：

data class GetAppResponse(
        val externalId: Long?,
        val lastUpdate: LocalDateTime?,
        var connectionInfo: ConnectionInfoDto? = null
) : BaseResponse()

data class ConnectionInfoDto(
        val catalogUrl: String?,
        val catalogPass: String?,
        val catalogLogin: String?
)

当我尝试将其序列化为 json:

fun partner() {
        partner.stubFor(get(anyUrl())
                .willReturn(aResponse()
                        .withHeader("Content-Type", "application/json")
                        .withBody("{\"externalId\": 1, " +
                                "\"lastUpdate\": \"2020-01-01T10:00:00\", " +
                                "\"connectionInfo\": {" +
                                "\"catalogUrl\": " + archiveUrl + ", " +
                                "\"catalogPass\": \"user\", " +
                                "\"catalogLogin\": \"user\"}")
                ))
    }

我得到

 nested exception is org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Unrecognized token 'http': was expecting (JSON String, Number, Array, Object or token 'null', 'true' or 'false'); nested exception is com.fasterxml.jackson.databind.JsonMappingException: Unrecognized token 'http': was expecting (JSON String, Number, Array, Object or token 'null', 'true' or 'false')
     at [Source: (PushbackInputStream); line: 1, column: 94] (through reference chain: GetAppResponse["connectionInfo"])

什么原因以及如何解决问题？

Answer 1

替换：

"\"catalogUrl\": " + archiveUrl + ", " +

有了这个：

"\"catalogUrl\": \"" + archiveUrl + "\", " +

Answer 2

例如，您的 archiveUrl 值为 asdsad，因此您的完整字符串正文将为

{"externalId": 1, "lastUpdate": "2020-01-01T10:00:00", "connectionInfo": {"catalogUrl": asdsad, "catalogPass": "user", "catalogLogin": "user"}

您可以看到 catalogUrl 值不是字符串，因此出现错误。

因此，如果您想成功地将字符串解析为您的对象，只需更改 catalogUrl 值以用双引号表示。

你的字符串主体

"{\"externalId\": 1, " +
                "\"lastUpdate\": \"2020-01-01T10:00:00\", " +
                "\"connectionInfo\": {" +
                "\"catalogUrl\": \"" + archiveUrl + "\", " +
                "\"catalogPass\": \"user\", " +
                "\"catalogLogin\": \"user\"}"

和json响应：-

{"externalId": 1, "lastUpdate": "2020-01-01T10:00:00", "connectionInfo": {"catalogUrl": "asdsad", "catalogPass": "user", "catalogLogin": "user"}

HttpMessageNotReadableException: JSON 解析错误

HttpMessageNotReadableException: JSON parse error

json

spring

spring-boot

kotlin

concordion