Springboot Jackson 序列化与反序列化配置

可解决在使用默认反序列化Jackson时，LocalDateTime类型的请求参数反序列化失败的问题

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.*;
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.deser.LocalTimeDeserializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateSerializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalTimeSerializer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.convert.converter.Converter;import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.format.DateTimeFormatter;
import java.util.Date;/*** @author wzy wzynov@qq.com* @date 2023-12-14 08:21*/
@Configuration
public class JacksonConfig {/*** 默认日期时间格式*/public static final String DEFAULT_DATE_TIME_FORMAT = "yyyy-MM-dd HH:mm:ss";/*** 默认日期格式*/public static final String DEFAULT_DATE_FORMAT = "yyyy-MM-dd";/*** 默认时间格式*/public static final String DEFAULT_TIME_FORMAT = "HH:mm:ss";/*** LocalDate转换器，用于转换RequestParam和PathVariable参数*/@Beanpublic Converter<String, LocalDate> localDateConverter() {return new Converter<String, LocalDate>() {@Overridepublic LocalDate convert(String source) {return LocalDate.parse(source, DateTimeFormatter.ofPattern(DEFAULT_DATE_FORMAT));}};}/*** LocalDateTime转换器，用于转换RequestParam和PathVariable参数*/@Beanpublic Converter<String, LocalDateTime> localDateTimeConverter() {return new Converter<String, LocalDateTime>() {@Overridepublic LocalDateTime convert(String source) {return LocalDate.parse(source, DateTimeFormatter.ofPattern(getPattern(source))).atStartOfDay();}};}private String getPattern(String source) {int length = source.length();if (length == DEFAULT_DATE_TIME_FORMAT.length()) return DEFAULT_DATE_TIME_FORMAT;if (length == DEFAULT_DATE_FORMAT.length()) return DEFAULT_DATE_FORMAT;throw new RuntimeException("请使用合适的日期格式。例如，" + DEFAULT_DATE_TIME_FORMAT + "、" + DEFAULT_DATE_FORMAT);}/*** LocalTime转换器，用于转换RequestParam和PathVariable参数*/@Beanpublic Converter<String, LocalTime> localTimeConverter() {return new Converter<String, LocalTime>() {@Overridepublic LocalTime convert(String source) {return LocalTime.parse(source, DateTimeFormatter.ofPattern(DEFAULT_TIME_FORMAT));}};}/*** Date转换器，用于转换RequestParam和PathVariable参数*/@Beanpublic Converter<String, Date> dateConverter() {return new Converter<String, Date>() {@Overridepublic Date convert(String source) {SimpleDateFormat format = new SimpleDateFormat(DEFAULT_DATE_TIME_FORMAT);try {return format.parse(source);} catch (ParseException e) {throw new RuntimeException(e);}}};}/*** 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*/@Beanpublic ObjectMapper objectMapper() {ObjectMapper objectMapper = new ObjectMapper();objectMapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);objectMapper.disable(DeserializationFeature.ADJUST_DATES_TO_CONTEXT_TIME_ZONE);objectMapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);// LocalDateTime系列序列化和反序列化模块，继承自jsr310，我们在这里修改了日期格式JavaTimeModule javaTimeModule = new JavaTimeModule();javaTimeModule.addSerializer(LocalDateTime.class,new LocalDateTimeSerializer(DateTimeFormatter.ofPattern(DEFAULT_DATE_TIME_FORMAT)));javaTimeModule.addSerializer(LocalDate.class, new LocalDateSerializer(DateTimeFormatter.ofPattern(DEFAULT_DATE_FORMAT)));javaTimeModule.addSerializer(LocalTime.class, new LocalTimeSerializer(DateTimeFormatter.ofPattern(DEFAULT_TIME_FORMAT)));javaTimeModule.addDeserializer(LocalDateTime.class,new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern(DEFAULT_DATE_TIME_FORMAT)));javaTimeModule.addDeserializer(LocalDate.class,new LocalDateDeserializer(DateTimeFormatter.ofPattern(DEFAULT_DATE_FORMAT)));javaTimeModule.addDeserializer(LocalTime.class,new LocalTimeDeserializer(DateTimeFormatter.ofPattern(DEFAULT_TIME_FORMAT)));// Date序列化和反序列化javaTimeModule.addSerializer(Date.class, new JsonSerializer<Date>() {@Overridepublic void serialize(Date date, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException {SimpleDateFormat formatter = new SimpleDateFormat(DEFAULT_DATE_TIME_FORMAT);String formattedDate = formatter.format(date);jsonGenerator.writeString(formattedDate);}});javaTimeModule.addDeserializer(Date.class, new JsonDeserializer<Date>() {@Overridepublic Date deserialize(JsonParser jsonParser, DeserializationContext deserializationContext) throws IOException,JsonProcessingException {SimpleDateFormat format = new SimpleDateFormat(DEFAULT_DATE_TIME_FORMAT);String date = jsonParser.getText();try {return format.parse(date);} catch (ParseException e) {throw new RuntimeException(e);}}});javaTimeModule.addSerializer(Date.class, new JsonSerializer<Date>() {@Overridepublic void serialize(Date date, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException {SimpleDateFormat formatter = new SimpleDateFormat(DEFAULT_DATE_FORMAT);String formattedDate = formatter.format(date);jsonGenerator.writeString(formattedDate);}});javaTimeModule.addDeserializer(Date.class, new JsonDeserializer<Date>() {@Overridepublic Date deserialize(JsonParser jsonParser, DeserializationContext deserializationContext) throws IOException,JsonProcessingException {SimpleDateFormat format = new SimpleDateFormat(DEFAULT_DATE_FORMAT);String date = jsonParser.getText();try {return format.parse(date);} catch (ParseException e) {throw new RuntimeException(e);}}});objectMapper.registerModule(javaTimeModule);return objectMapper;}}