1.项目框架springboot 

实体结构大概是这样的

body:{

对象1：{

private Localdatetime xxx

},

List<对象2>：[{...}],

对象3：{}

}

接收是这样的xxx(@RequestBody Body body)

尝试了网上的各种方法都是报400错误

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只有在属性上加了注解

才行，不知道有没有其他办法

body:{

对象1：{

@DateTimeFormat(iso = DateTimeFormat.ISO.DATE_TIME)

private Localdatetime xxx

},

List<对象2>：[{...}],

对象3：{}

}

还要

添加配置

@Configuration
public class DateTimeConfig {

    /**
     * Date格式化字符串
     */
    private static final String DATE_FORMAT = "yyyy-MM-dd";
    /**
     * DateTime格式化字符串
     */
    private static final String DATETIME_FORMAT = "yyyy-MM-dd HH:mm:ss";
    /**
     * Time格式化字符串
     */
    private static final String TIME_FORMAT = "HH:mm:ss";


    @Bean
    @Primary
    public Jackson2ObjectMapperBuilderCustomizer jackson2ObjectMapperBuilderCustomizer() {
        return builder -> builder.serializerByType(LocalDateTime.class, new LocalDateTimeSerializer(DateTimeFormatter.ofPattern(DATETIME_FORMAT)))
                .serializerByType(LocalDate.class, new LocalDateSerializer(DateTimeFormatter.ofPattern(DATE_FORMAT)))
                .serializerByType(LocalTime.class, new LocalTimeSerializer(DateTimeFormatter.ofPattern(TIME_FORMAT)))
                .deserializerByType(LocalDateTime.class, new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern(DATETIME_FORMAT)))
                .deserializerByType(LocalDate.class, new LocalDateDeserializer(DateTimeFormatter.ofPattern(DATE_FORMAT)))
                .deserializerByType(LocalTime.class, new LocalTimeDeserializer(DateTimeFormatter.ofPattern(TIME_FORMAT)));
    }


    @Bean
    public Converter<String, LocalDate> localDateConvert() {
        return new Converter<String, LocalDate>() {
            @Override
            public LocalDate convert(String source) {
                return LocalDate.parse(source, DateTimeFormatter.ofPattern("yyyy-MM-dd"));
            }
        };
    }

    @Bean
    public Converter<String, LocalDateTime> localDateTimeConvert() {
        return new Converter<String, LocalDateTime>() {
            @Override
            public LocalDateTime convert(String source) {
                return LocalDateTime.parse(source, DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"));
            }
        };
    }
}