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

<!-- 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

import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
import com.fasterxml.jackson.databind.annotation.JsonSerialize;
import com.fasterxml.jackson.datatype.jsr310.deser.LocalTimeDeserializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalTimeSerializer;

    @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

/**
 * 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;
    }

}