jackson注解定义序列化字段的日期格式

1. 创建bean extends JsonSerializer

import com.fasterxml.jackson.core.JsonGenerator;
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 MMddyyyyDateSerializer extends JsonSerializer<Date> {

    private static final String DATE_FORMAT = "MM/dd/yyyy";

    @Override
    public void serialize(Date value, JsonGenerator gen, SerializerProvider serializers) throws IOException {
        gen.writeString(new SimpleDateFormat(DATE_FORMAT).format(value));
    }
}

2. 注解放在get方法上面

import com.fasterxml.jackson.databind.annotation.JsonSerialize;

@JsonSerialize(using = MMddyyyySlashDateSerializer.class)
    public Date getDataUploadDate() {
        return DataUploadDate;
    }