Resolved [org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Cann

Resolved [org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Cannot deserialize instance of java.lang.Long out of START_ARRAY token; nested exception is com.fasterxm

lz无痕

5409人浏览 · 2020-02-10 21:26:50

lz无痕 · 2020-02-10 21:26:50 发布

Resolved [org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Cannot deserialize instance of java.lang.Long out of START_ARRAY token; nested exception is com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize instance of java.lang.Long out of START_ARRAY token
at [Source: (PushbackInputStream); line: 1, column: 278] (through reference chain: com.lz.game.system.entity.form.QuestionForm[“classificationId”])]

发现是前端的类型和后端类型不匹配导致的错误，将类型改成一样就解决了问题
在这里插入图片描述

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