使用MOXy解组LocalDate/LocalDateTime

Question

{
    "localDate": "2017-07-11",
    "localDateTime": "2017-07-11T10:11:10.817",
    "date": "2017-07-11T10:11:10.817+02:00"
}

{
    "date": "2017-07-11T10:11:10.817+02:00"
}

什么给了？MOXy似乎支持这些类型的序列化，但不支持反序列化？

import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.util.Date;

@Path("/test/date")
public class DateTest {
    public static class Data {
        public LocalDate localDate;
        public LocalDateTime localDateTime;
        public Date date;
    }

    @GET
    @Path("roundtrip")
    public Response roundtrip() {
        Data sample = getSample();
        return roundtrip(sample);
    }

    @POST
    @Path("roundtrip")
    @Consumes(MediaType.APPLICATION_JSON)
    public Response roundtrip(Data t) {
        return Response.status(Response.Status.OK).entity(t).build();
    }

    protected Data getSample() {
        final Data data = new Data();
        data.localDate = LocalDate.now();
        data.localDateTime = LocalDateTime.now();
        data.date = new Date();
        return data;
    }
}

Moxy版本:jersey-media-moxy-2.25.1

Answer 1

根据Peeskillet的建议，我实现了以下适配器类：

public class LocalDateTimeAdapter extends XmlAdapter<String, LocalDateTime>{

  private static final DateTimeFormatter DTF = DateTimeFormatter.ofPattern("yyyyMMddHHmmss");

  @Override
  public String marshal(LocalDateTime localDateTime) throws Exception {
    return localDateTime.format(DTF);
  }

  @Override
  public LocalDateTime unmarshal(String string) throws Exception {
    return LocalDateTime.parse(string, DTF);
  }

}

此外，我在我的MOXy类和适配器（在子包中）所在的同一个包中创建了package-info.java，内容如下：

@XmlJavaTypeAdapters({
  @XmlJavaTypeAdapter(type=LocalDateTime.class,
      value=LocalDateTimeAdapter.class)
})
package api;

import java.time.LocalDateTime;

import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapters;

import api.adapter.LocalDateTimeAdapter;

因此，编组和解组工作没有问题。使用dtf可以指定应用的格式。