JsonDateSerializer.java

package org.zalando.catwatch.backend.model.util;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;

import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;

public class JsonDateSerializer extends JsonSerializer<Date> {

    @Override
    public void serialize(final Date date, final JsonGenerator jgen, final SerializerProvider provider)
        throws IOException, JsonProcessingException {
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
        String formattedDate = format.format(date);
        jgen.writeString(formattedDate);
    }

}