一、将Bean转成Map
ObjectMapper objectMapper = new ObjectMapper();
// 一定要加这个,不然会包含null的字段
objectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
Map params = objectMapper.convertValue(card, Map.class);
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一、将Bean转成Map
ObjectMapper objectMapper = new ObjectMapper();
// 一定要加这个,不然会包含null的字段
objectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
Map params = objectMapper.convertValue(card, Map.class);
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