Java 8 日期/时间类型 `java.time.LocalDateTime` 默认不支持：日期序列化问题

Java 8 date/time type `java.time.LocalDateTime` not supported by default:日期序列化问题

jackson默认不支持java8 LocalDateTime的序列化和反序列化，那控制台也显示了解决的办法，只不过并不全。

解决办法一：将实体类中的LocalDateTime转为Date类型

解决办法二：

<dependency>
	<groupId>com.fasterxml.jackson.datatype</groupId>
	<artifactId>jackson-datatype-jsr310</artifactId>
	<version>2.13.0</version>
</dependency>

通过注解指定

@TableField("update_time")
    @ApiModelProperty("更新时间")
    @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss") //此注解用来接收字符串类型的参数封装成LocalDateTime类型
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss",timezone = "GMT+8", shape = JsonFormat.Shape.STRING) //此注解将date类型数据转成字符串响应出去
    @JsonDeserialize(using = LocalDateTimeDeserializer.class)		// 反序列化
    @JsonSerialize(using = LocalDateTimeSerializer.class)		// 序列化
    private LocalDateTime updateTime;
    @TableField("create_time")
    @ApiModelProperty("添加时间")
    @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm") //此注解用来接收字符串类型的参数封装成LocalDateTime类型
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm",timezone = "GMT+8", shape = JsonFormat.Shape.STRING) //此注解将date类型数据转成字符串响应出去
    @JsonDeserialize(using = LocalDateTimeDeserializer.class)		// 反序列化
    @JsonSerialize(using = LocalDateTimeSerializer.class)		// 序列化
    private LocalDateTime createTime;

 

配置全局

@Configuration
public class MvcConfig implements WebMvcConfigurer {
    @Override
    public void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
        MappingJackson2HttpMessageConverter messageConverter = new MappingJackson2HttpMessageConverter();
        ObjectMapper objectMapper = new ObjectMapper();
        objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        objectMapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
        objectMapper.registerModule(new JavaTimeModule());
        messageConverter.setObjectMapper(objectMapper);
        converters.add(0, messageConverter);
    }
}

解决办法三：

用阿里的FastJson替换ObjectMapper