JackSon反序列化报错,Unrecognized field, not marked as ignorable

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1.报错的情景

字段	JavaBean	redis	是否报错
包含字段	a,b	a	否
包含字段	a	a,b	是

2.解决办法

• 2.1对于JaveBean的类定义上加上注解

@JsonIgnoreProperties(ignoreUnknown = true)  
public Class Bean{
}

• 2.2设置jackson的序列化配置

ObjectMapper objectMapper=new ObjectMapper();
        objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES,false);
jackson.setObjectMapper(objectMapper);