com.fasterxml.jackson.databind.exc.MismatchedInputException

jackson json轉實體 com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException

jackson 2.2.2

因爲vo中缺乏json的某個字段屬性引發

3種解決方法

一、 vo中添加註解 @JsonIgnoreProperties(ignoreUnknown = true)，在實體類上加上註解

二、  mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);

三、 添加以下便可：mapper.configure(DeserializationFeature.ACCEPT_EMPTY_ARRAY_AS_NULL_OBJECT, true);，把空的數組「[]」轉爲空

 

com.fasterxml.jackson.databind.exc.MismatchedInputException

錯誤的格式

[{
    "firstName": "hgf",
    "lastName": "frew",
    "username": "erf",
    "email": "bgghjk",
    "password": "bgte",
    "role": "trrere"
  }
]

　　

正確的格式，不要[]

{
    "firstName": "hgf", "lastName": "frew", "username": "erf", "email": "bgghjk", "password": "bgte", "role": "trrere" }