Jackson进行JSON序列化/反序列化添加Java 8的日期和时间库支持

 

添加依赖包

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<!-- Jackson进行JSON序列化/反序列化添加Java 8的日期和时间库支持 -->         <dependency>             <groupId>com.fasterxml.jackson.datatype</groupId>             <artifactId>jackson-datatype-jsr310</artifactId>             <version>2.13.0</version>         </dependency>

　　

方式一: 单个实体类

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import com.fasterxml.jackson.databind.annotation.JsonDeserialize;<br>import com.fasterxml.jackson.databind.annotation.JsonSerialize;<br>import com.fasterxml.jackson.datatype.jsr310.deser.LocalTimeDeserializer;<br>import com.fasterxml.jackson.datatype.jsr310.ser.LocalTimeSerializer;<br><br>    @JsonFormat(pattern = "HH:mm:ss",timezone = "GMT+8", shape = JsonFormat.Shape.STRING)     @JsonDeserialize(using = LocalTimeDeserializer.class)       // 反序列化     @JsonSerialize(using = LocalTimeSerializer.class)       // 序列化     private LocalTime startTime;       @JsonFormat(pattern = "HH:mm:ss",timezone = "GMT+8", shape = JsonFormat.Shape.STRING)     @JsonDeserialize(using = LocalTimeDeserializer.class)       // 反序列化     @JsonSerialize(using = LocalTimeSerializer.class)       // 序列化     private LocalTime endTime;

　　

方式二: 全局注入

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/**  * Copyright (c) 2018 储能系统 All rights reserved.  *  * http://www.avcon.com.cn  *  * 版权所有，侵权必究！  */   package com.avcon.modules.security.config;   import com.fasterxml.jackson.databind.DeserializationFeature; import com.fasterxml.jackson.databind.ObjectMapper; import com.fasterxml.jackson.databind.module.SimpleModule; import com.fasterxml.jackson.databind.ser.std.ToStringSerializer; import com.avcon.common.utils.DateUtils; import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.http.converter.ByteArrayHttpMessageConverter; import org.springframework.http.converter.HttpMessageConverter; import org.springframework.http.converter.ResourceHttpMessageConverter; import org.springframework.http.converter.StringHttpMessageConverter; import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter; import org.springframework.http.converter.support.AllEncompassingFormHttpMessageConverter; import org.springframework.web.servlet.config.annotation.CorsRegistry; import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;   import java.text.SimpleDateFormat; import java.util.List; import java.util.TimeZone;   @Configuration public class WebMvcConfig implements WebMvcConfigurer {       @Bean     public MappingJackson2HttpMessageConverter jackson2HttpMessageConverter() {         MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();         ObjectMapper mapper = new ObjectMapper();           //日期格式转换         mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);         mapper.setDateFormat(new SimpleDateFormat(DateUtils.DATE_TIME_PATTERN));         mapper.setTimeZone(TimeZone.getTimeZone("GMT+8"));           //Long类型转String类型         JavaTimeModule javaTimeModule = new JavaTimeModule();         javaTimeModule.addSerializer(Long.class, ToStringSerializer.instance);         javaTimeModule.addSerializer(Long.TYPE, ToStringSerializer.instance);         mapper.registerModule(javaTimeModule);           converter.setObjectMapper(mapper);         return converter;     }   }