SpringBoot 中LocalDateTime格式化日期

简介

很多时候日期格式输出是这样的
2018-10-09T17:39:07.097
中间有个T，尴尬，是的我们需要去掉这个T
这方法是springboot封装好了的，我们直接使用即可，普通的配置我就不贴了

（一）、日期格式化输出

{
    "code": 1,
    "msg": "查询成功",
    "data": {
        "id": 1,
        "licensePlate": "1",
        "vehicleNumber": "1",
        "remark": "1",
        "createTime": "2018-12-24T15:14:26",
        "vid": 1
    }
}

解决方法1： 在实体的时间字段添加注解 @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")

                 

    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
    @TableField("create_time")
    private LocalDateTime createTime;

解决方法2：自定义config

package com.blct.common.core.config;

import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
import org.springframework.boot.autoconfigure.jackson.Jackson2ObjectMapperBuilderCustomizer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;

/**
 * @ClassName: LocalDateTimeSerializerConfig
 * @Author: wcs
 * @Description:
 * @Date: Created in 18:16 2018/12/24
 * @Package: com.blct.common.core.config
 * @project: carcloud
 * @Modified By:
 */
@Configuration
public class LocalDateTimeSerializerConfig {
    @org.springframework.beans.factory.annotation.Value("${spring.jackson.date-format:yyyy-MM-dd HH:mm:ss}")
    private String pattern;

    @Bean
    public LocalDateTimeSerializer localDateTimeDeserializer() {
        return new LocalDateTimeSerializer(DateTimeFormatter.ofPattern(pattern));
    }

    @Bean
    public Jackson2ObjectMapperBuilderCustomizer jackson2ObjectMapperBuilderCustomizer() {
        return builder -> builder.serializerByType(LocalDateTime.class, localDateTimeDeserializer());
    }
}

到此完成：

{
    "code": 1,
    "msg": "查询成功",
    "data": {
        "id": 1,
        "licensePlate": "1",
        "vehicleNumber": "1",
        "remark": "1",
        "createTime": "2018-12-24 15:14:26",
        "vid": 1
    }
}

（二）、LocalDateTime日期格式化输入:加上注解  @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")

  1.对象中属性接受

    @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")
    @TableField("create_time")
    private LocalDateTime createTime;

   2.单个参数接受

    @GetMapping("/add")
    public void add(@RequestParam @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss") LocalDateTime qq) {
        VehicleEntity vehicleEntity = vehicleService.getById(1);
        vehicleEntity.setCreateTime(qq);
        System.out.println(qq);

    }