SpringBoot Jackson

1. SpringBoot JSON工具包默认是Jackson，只需要引入spring-boot-starter-web依赖包，自动引入相应依赖包：　

        com.fasterxml.jackson.core

        jackson-databind -->数据绑定依赖于下面两个包

        2.8.7





        com.fasterxml.jackson.core

        jackson-annotations -->注解包

        2.8.0





        com.fasterxml.jackson.core

        jackson-core -->核心包

        2.8.7

2. Jackson两种配置方式

　　A. application.properties文件

# 日期格式化
spring.jackson.date-format=yyyy-MM-dd HH:mm:ss
# 日期时区
spring.jackson.time-zone=GMT+8
# 返回值null不显示
spring.jackson.default-property-inclusion=non_null

　　B. bean配置

package com.ruhuanxingyun.config;

import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;

@Configuration
public class JacksonConfig {

   @Bean
   @Primary
   @ConditionalOnMissingBean(ObjectMapper.class)
   public ObjectMapper jacksonObjectMapper(Jackson2ObjectMapperBuilder builder) {
      ObjectMapper objectMapper = builder.createXmlMapper(false).build();
      // 返回值过滤null或""值
      objectMapper.setSerializationInclusion(JsonInclude.Include.NON_EMPTY).setSerializationInclusion(JsonInclude.Include.NON_NULL);

      return objectMapper;
   }

}

 

可参考：SpringBoot Jackson配置方式

　　　　SpringBoot 返回值XML

　　　　jackson更多了解

转载于:https://www.cnblogs.com/ruhuanxingyun/p/10937473.html