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coding++：error Could not read JSON: Unexpected token (START_OBJECT), expected START_ARRAY: need JSON Array to contain As.WRAPPER_ARRAY type information for class java.lang.Object

本文转载自  查看原文  2020-03-31 17:41  5524    Redis

Spring源码中是使用容器中的ObjectMapper对象进行序列化和反序列化。

当我们将自定义的ObjectMapper对象放入IOC容器中后，会自动覆盖SpringBoot自动装载的ObjectMapper对象。

若是我们在自定义的ObjectMapper中设置了objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);属性。

那么可能会影响我们的@RequestBody反序列化JSON串，

将配置类的 om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL); 注释掉.


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猜您在找 jackson反序列化：Unexpected token (START_OBJECT), expected VALUE_STRING: Expected array or string. Could not read JSON: Unexpected character ('¬' (code 172)): expected a valid value (JSON String, Number, Array, Object or token 'null', 'true' or 'false') RedisTemplate 报错 Unexpected token (VALUE_NUMBER_INT), expected VALUE_STRING: need JSON String that contains type id (for subtype of java.lang.Object) at [Source: (byte[])" Can not deserialize instance of java.lang.Integer out of START_ARRAY token json传入List报错：JSON parse error: Cannot deserialize instance of `java.lang.String` out of START_OBJECT token; nes JSON parse error: Can not deserialize instance of java.lang.String out of START_OBJECT token; nested exception is com.fasterxml.jackson.databind.JsonMappingException: Can not deserialize instance of j JsonParseException: Unexpected character ('<' (code 60)): expected a valid value (JSON String, Number, Array, Object or token 'null', 'true' or 'false') JSON parse error: Unrecognized token 'xxx': was expecting (JSON String, Number, Array, Object or token 'null', 'true' or 'false'); java报错：com.fasterxml.jackson.databind.JsonMappingException: Can not deserialize out of START_ARRAY token AFNetworking 关于JSON text did not start with array or object and option to allow fragments not set 错误
 
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