springboot 之 常用jackson配置

#时区
spring.jackson.time-zone=GMT+8
#日期格式
spring.jackson.date-format=yyyy-MM-dd HH:mm:ss
#默认转json的属性，这里设置为非空才转json
spring.jackson.default-property-inclusion=non_null
#设置属性命名策略,对应jackson下PropertyNamingStrategy中的常量值，SNAKE_CASE-返回的json驼峰式转下划线，json body下划线传到后端自动转驼峰式
spring.jackson.property-naming-strategy=SNAKE_CASE
#对象为空时是否报错，默认true
spring.jackson.serialization.fail-on-empty-beans=true
#返回的java.util.date转换成timestamp
spring.jackson.serialization.write-dates-as-timestamps=true
#json中含pojo不存在属性时是否失败报错,默认true
spring.jackson.deserialization.fail-on-unknown-properties=false
#是否允许出现单引号,默认false
spring.jackson.parser.allow-single-quotes=true

序列化

ObjectMapper mapper = new ObjectMapper();  
  
//User类转JSON  
//输出结果：{"name":"小民","age":20,"birthday":844099200000,"email":"xiaomin@sina.com"}  
String json = mapper.writeValueAsString(user);  

反序列化

String json = "{\"name\":\"小民\",\"age\":20,\"birthday\":844099200000,\"email\":\"xiaomin@sina.com\"}";  
 
/** 
* ObjectMapper支持从byte[]、File、InputStream、字符串等数据的JSON反序列化。 
*/  
ObjectMapper mapper = new ObjectMapper();  
User user = mapper.readValue(json, User.class);  

其他可查看源码