对于部分返回DateTime的项目,只需要在指定属性上添加@JsonSerialize 使用自定义的json转换格式即可自定义返回DateTime格式
但是对于项目中返回有多个DateTime字段来说,上面的方法明显不适用,这时需要自定义全局的DateTime转换器:
1、配置文件:
application/json;charset=UTF-8
text/html;charset=UTF-8
主要是在mappingJacksonHttpMessageConverter中自定义objectMapper
2、下载需要的jar
com.fasterxml.jackson.datatype
jackson-datatype-joda
${jackson.mapper}
public class DateTimeConverter extends ObjectMapper {
private static final long serialVersionUID = 1L;
public DateTimeConverter() {
this.registerModule(new BaseJodaModule());
this.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);
}
}
4、BaseJodaModule
package com.cml.mvc.framework.converter.datetime;
import org.joda.time.DateMidnight;
import org.joda.time.DateTime;
import org.joda.time.DateTimeZone;
import org.joda.time.Duration;
import org.joda.time.Instant;
import org.joda.time.Interval;
import org.joda.time.LocalDate;
import org.joda.time.LocalDateTime;
import org.joda.time.LocalTime;
import org.joda.time.MonthDay;
import org.joda.time.Period;
import org.joda.time.ReadableDateTime;
import org.joda.time.ReadableInstant;
import org.joda.time.ReadablePeriod;
import org.joda.time.YearMonth;
import org.joda.time.format.DateTimeFormat;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.module.SimpleModule;
import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
import com.fasterxml.jackson.datatype.joda.PackageVersion;
import com.fasterxml.jackson.datatype.joda.cfg.JacksonJodaDateFormat;
import com.fasterxml.jackson.datatype.joda.deser.DateMidnightDeserializer;
import com.fasterxml.jackson.datatype.joda.deser.DateTimeDeserializer;
import com.fasterxml.jackson.datatype.joda.deser.DateTimeZoneDeserializer;
import com.fasterxml.jackson.datatype.joda.deser.DurationDeserializer;
import com.fasterxml.jackson.datatype.joda.deser.InstantDeserializer;
import com.fasterxml.jackson.datatype.joda.deser.IntervalDeserializer;
import com.fasterxml.jackson.datatype.joda.deser.LocalDateDeserializer;
import com.fasterxml.jackson.datatype.joda.deser.LocalDateTimeDeserializer;
import com.fasterxml.jackson.datatype.joda.deser.LocalTimeDeserializer;
import com.fasterxml.jackson.datatype.joda.deser.MonthDayDeserializer;
import com.fasterxml.jackson.datatype.joda.deser.PeriodDeserializer;
import com.fasterxml.jackson.datatype.joda.deser.YearMonthDeserializer;
import com.fasterxml.jackson.datatype.joda.deser.key.DateTimeKeyDeserializer;
import com.fasterxml.jackson.datatype.joda.deser.key.LocalDateKeyDeserializer;
import com.fasterxml.jackson.datatype.joda.deser.key.LocalDateTimeKeyDeserializer;
import com.fasterxml.jackson.datatype.joda.deser.key.LocalTimeKeyDeserializer;
import com.fasterxml.jackson.datatype.joda.ser.DateMidnightSerializer;
import com.fasterxml.jackson.datatype.joda.ser.DateTimeSerializer;
import com.fasterxml.jackson.datatype.joda.ser.DateTimeZoneSerializer;
import com.fasterxml.jackson.datatype.joda.ser.DurationSerializer;
import com.fasterxml.jackson.datatype.joda.ser.InstantSerializer;
import com.fasterxml.jackson.datatype.joda.ser.IntervalSerializer;
import com.fasterxml.jackson.datatype.joda.ser.LocalDateSerializer;
import com.fasterxml.jackson.datatype.joda.ser.LocalDateTimeSerializer;
import com.fasterxml.jackson.datatype.joda.ser.LocalTimeSerializer;
import com.fasterxml.jackson.datatype.joda.ser.PeriodSerializer;
@SuppressWarnings("deprecation")
public class BaseJodaModule extends SimpleModule {
private static final long serialVersionUID = 1L;
public static final String DATE_TIME_PATTERN = "yyyyMMddHHmmss";
private static final JacksonJodaDateFormat DATE_TIME_FORMATTER = new JacksonJodaDateFormat(
DateTimeFormat.forPattern(DATE_TIME_PATTERN).withZoneUTC());
@SuppressWarnings({ "unchecked" })
public BaseJodaModule() {
super(PackageVersion.VERSION);
// first deserializers
addDeserializer(DateMidnight.class, new DateMidnightDeserializer());
addDeserializer(DateTime.class,
DateTimeDeserializer.forType(DateTime.class));
addDeserializer(DateTimeZone.class, new DateTimeZoneDeserializer());
addDeserializer(Duration.class, new DurationDeserializer());
addDeserializer(Instant.class, new InstantDeserializer());
addDeserializer(LocalDateTime.class, new LocalDateTimeDeserializer());
addDeserializer(LocalDate.class, new LocalDateDeserializer());
addDeserializer(LocalTime.class, new LocalTimeDeserializer());
JsonDeserializer deser = new PeriodDeserializer(true);
addDeserializer(Period.class, (JsonDeserializer) deser);
addDeserializer(ReadablePeriod.class, new PeriodDeserializer(false));
addDeserializer(ReadableDateTime.class,
DateTimeDeserializer.forType(ReadableDateTime.class));
addDeserializer(ReadableInstant.class,
DateTimeDeserializer.forType(ReadableInstant.class));
addDeserializer(Interval.class, new IntervalDeserializer());
addDeserializer(MonthDay.class, new MonthDayDeserializer());
addDeserializer(YearMonth.class, new YearMonthDeserializer());
// then serializers:
final JsonSerializer
//主要是修改这里,自定义日期格式
addSerializer(DateTime.class, new DateTimeSerializer(
DATE_TIME_FORMATTER));
addSerializer(DateTimeZone.class, new DateTimeZoneSerializer());
addSerializer(Duration.class, new DurationSerializer());
addSerializer(Instant.class, new InstantSerializer());
addSerializer(LocalDateTime.class, new LocalDateTimeSerializer());
addSerializer(LocalDate.class, new LocalDateSerializer());
addSerializer(LocalTime.class, new LocalTimeSerializer());
addSerializer(Period.class, new PeriodSerializer());
addSerializer(Interval.class, new IntervalSerializer());
addSerializer(MonthDay.class, stringSer);
addSerializer(YearMonth.class, stringSer);
// then key deserializers
addKeyDeserializer(DateTime.class, new DateTimeKeyDeserializer());
addKeyDeserializer(LocalTime.class, new LocalTimeKeyDeserializer());
addKeyDeserializer(LocalDate.class, new LocalDateKeyDeserializer());
addKeyDeserializer(LocalDateTime.class,
new LocalDateTimeKeyDeserializer());
}
// yes, will try to avoid duplicate registations (if MapperFeature enabled)
@Override
public String getModuleName() {
return getClass().getSimpleName();
}
@Override
public int hashCode() {
return getClass().hashCode();
}
@Override
public boolean equals(Object o) {
return this == o;
}
}
自定义全局DateTime json格式ok,但是个人感觉太复杂了,设置个日期格式而已,要配置,自己实现这么多步骤!
期待更简单的全局配置方式。。。