SpringMVC使用LocalDateTime、LocalDate

Date & LocalDate

Post、Put请求反序列化

Get请求反序列化

响应参数序列化

json工具类POJO 与 JSON字符串之间转换

汇总之后的代码

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateDeserializer;
import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateSerializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.core.convert.converter.Converter;

import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
/**
 * LocalDateTime序列化 & 反序列化
 */
@Slf4j
@Configuration
public class LocalDateTimeSerializerConfig {

    private static final DateTimeFormatter DATE_TIME_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
    private static final DateTimeFormatter DATE_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd");
    private static final DateTimeFormatter TIME_FORMATTER = DateTimeFormatter.ofPattern("HH:mm:ss");

    /**
     * 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, DATE_TIME_FORMATTER);
            }
        };
    }

    /**
     * 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, DATE_FORMATTER);
            }
        };
    }


    // 配置全局的ObjectMapper
    // 解决接口出参序列化 和 JSON工具类中POJO与JSON字符串之间的转换问题
    @Bean
    @Primary
    //@ConditionalOnMissingBean(ObjectMapper.class)
    public ObjectMapper objectMapper() {
        log.warn("配置全局Object Mapper");
        ObjectMapper objectMapper = new ObjectMapper(); 
        objectMapper.setDateFormat(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"));
        JavaTimeModule javaTimeModule = new JavaTimeModule();
        // 注册 LocalDate 的序列化器
        javaTimeModule.addSerializer(LocalDate.class, new LocalDateSerializer(DateTimeFormatter.ISO_LOCAL_DATE));
        // 注册 LocalDateTime 的序列化器
        javaTimeModule.addSerializer(
                LocalDateTime.class,
                new LocalDateTimeSerializer(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
        //注册 LocalDate 的反序列化器
        javaTimeModule.addDeserializer(LocalDate.class, new LocalDateDeserializer(DateTimeFormatter.ISO_LOCAL_DATE));
        // 注册 LocalDateTime 的反序列化器
        javaTimeModule.addDeserializer(
                LocalDateTime.class,
                new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));

        // LocalDateTime序列化
        objectMapper.registerModule(javaTimeModule);
        return objectMapper;
    }
}

参考

SpringBoot系列之LocalDateTime