51工具盒子背叛就是脱离自己的位置，背叛，就是摆脱原位，投向未知。------米兰·昆德拉
我们在使用jackson时可能会用到这样一个注解
|-----------|----------------------------------|
| 1 | hljs java @JsonAutoDetect |
例如我们这里一个Student类
|------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | hljs java @Data @Builder @NoArgsConstructor @AllArgsConstructor @JsonAutoDetect(getterVisibility = JsonAutoDetect.Visibility.NONE, isGetterVisibility = JsonAutoDetect.Visibility.PUBLIC_ONLY, setterVisibility = JsonAutoDetect.Visibility.PUBLIC_ONLY, creatorVisibility = JsonAutoDetect.Visibility.NON_PRIVATE, fieldVisibility = JsonAutoDetect.Visibility.PUBLIC_ONLY) private static class Student implements Serializable { private static final long serialVersionUID = -3289647584974663707L; public String name; private Integer age; private String job; private GenderEnum gender; private Date birthday; private String json; } |
这里我们name为public
我们指定了getterVisibility为JsonAutoDetect.Visibility.NONE
然后指定了fieldVisibility为JsonAutoDetect.Visibility.PUBLIC_ONLY
我们序列化一下
|---------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 1 2 3 | hljs java Instant from = LocalDateTime.parse("2021-01-09 00:00:00", DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss", Locale.ENGLISH)).toInstant(ZoneOffset.MAX); Student supa = Student.builder().name("supa").age(20).gender(GenderEnum.MALE).birthday(Date.from(from)).build(); System.out.println(new ObjectMapper().writeValueAsString(supa)); |
结果就只有一个name了
这里见名思意creatorVisibility就是构造器可见度setterVisibility就是setter可见度等
一般用于控制属性序列化可见度
