java序列化进行参数脱敏

JsonSerializer

public class CardNumberSerialize extends JsonSerializer<String> {
    @Override
    public void serialize(String s, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException {
        jsonGenerator.writeString(Objects.equals(s, "") ? s : s.replaceAll("(\\d{6})\\d{6}(\\d{4})", "$1******$2"));
    }
}

使用

public class Demo {
    public static void main(String[] args) {
        Student student = new Student();
        student.setName("张三");
        student.setCardNumber("1111111111111111");
        student.setAddress("beijing");
        System.out.println(JsonUtil.toJSONString(student));
        // ======> {"name":"张三","cardNumber":"111111******1111","address":"***"}
    }

    @Data
    public static class Student{
        private String name;

        @JsonSerialize(using = CardNumberSerialize.class)
        private String cardNumber;

        @JsonSerialize(using = CompleteDesensitizationSerialize.class)
        private String address;
    }
}

代码示例