Spring LocalDateTime时间转换配置

DateConvertConfig.java

/**
 * 时间转换配置
 *
 * @author yanganyu
 * @date 2019/9/23 17:05
 */
@Configuration
public class DateConvertConfig {
    /**
     * LocalDate转换器，用于转换RequestParam和PathVariable参数
     */
    @Bean
    public Converter<String, LocalDate> localDateConverter() {
        return new Converter<String, LocalDate>() {
            @Override
            public LocalDate convert(String source) {
                return LocalDate.parse(source, DateTimeFormatter.ofPattern(DateUtilsExt.yyyy_MM_dd));
            }
        };
    }

    /**
     * LocalDateTime转换器，用于转换RequestParam和PathVariable参数
     */
    @Bean
    public Converter<String, LocalDateTime> localDateTimeConverter() {
        return new Converter<String, LocalDateTime>() {
            @Override
            public LocalDateTime convert(String source) {
                return LocalDateTime.parse(source, DateTimeFormatter.ofPattern(DateUtilsExt.yyyy_MM_dd_HH_mm_ss));
            }
        };
    }

    /**
     * LocalTime转换器，用于转换RequestParam和PathVariable参数
     */
    @Bean
    public Converter<String, LocalTime> localTimeConverter() {
        return new Converter<String, LocalTime>() {
            @Override
            public LocalTime convert(String source) {
                return LocalTime.parse(source, DateTimeFormatter.ofPattern(DateUtilsExt.HH_mm_ss));
            }
        };
    }

    /**
     * Json序列化和反序列化转换器，用于转换Post请求体中的json以及将我们的对象序列化为返回响应的json
     */
    @Bean
    public ObjectMapper objectMapper(){
        ObjectMapper objectMapper = new ObjectMapper();
        JavaTimeModule javaTimeModule = new JavaTimeModule();
        javaTimeModule.addDeserializer(LocalDate.class,
                new LocalDateDeserializer(DateTimeFormatter.ofPattern(DateUtilsExt.yyyy_MM_dd)));
        javaTimeModule.addDeserializer(LocalDateTime.class,
                new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern(DateUtilsExt.yyyy_MM_dd_HH_mm_ss)));
        javaTimeModule.addDeserializer(LocalTime.class,new LocalTimeDeserializer(DateTimeFormatter.ofPattern(DateUtilsExt.HH_mm_ss)));
        javaTimeModule.addSerializer(LocalDate.class,
                new LocalDateSerializer(DateTimeFormatter.ofPattern(DateUtilsExt.yyyy_MM_dd)));
        javaTimeModule.addSerializer(LocalDateTime.class,
                new LocalDateTimeSerializer(DateTimeFormatter.ofPattern(DateUtilsExt.yyyy_MM_dd_HH_mm_ss)));
        javaTimeModule.addSerializer(LocalTime.class,new LocalTimeSerializer(DateTimeFormatter.ofPattern(DateUtilsExt.HH_mm_ss)));
        //Date序列化和反序列化
        javaTimeModule.addSerializer(Date.class, new JsonSerializer<Date>() {
            @Override
            public void serialize(Date date, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException {
                SimpleDateFormat formatter = new SimpleDateFormat(DateUtilsExt.yyyy_MM_dd_HH_mm_ss);
                String formattedDate = formatter.format(date);
                jsonGenerator.writeString(formattedDate);
            }
        });
        javaTimeModule.addDeserializer(Date.class, new JsonDeserializer<Date>() {
            @Override
            public Date deserialize(JsonParser jsonParser, DeserializationContext deserializationContext) throws IOException, JsonProcessingException {
                SimpleDateFormat format = new SimpleDateFormat(DateUtilsExt.yyyy_MM_dd_HH_mm_ss);
                String date = jsonParser.getText();
                try {
                    return format.parse(date);
                } catch (ParseException e) {
                    // 如果无法转换成带时间的，则转换成日期
                    try {
                        return new SimpleDateFormat(DateUtilsExt.yyyy_MM_dd).parse(date);
                    } catch (ParseException ex) {
                        throw new RuntimeException(ex);
                    }
                }
            }
        });
        objectMapper.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false)
                .registerModule(javaTimeModule)
                .registerModule(new ParameterNamesModule())
                .registerModule(new Jdk8Module());
        return objectMapper;
    }


}