如何将两个不同的对象添加到单个对象中

Question

这是我的功能,它添加了两个不同的对象.

@GET
@Path("/getApplicationEnv")
@Produces({MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML})
public List<Object> getApplicationEnv(){

    List<ApplicationDTO> allApplication = applicationService.getAllApplication();                       
    List<Application> Applist = new ArrayList<Application>();

    for(ApplicationDTO d: allApplication)
    {
        Application a = new Application();

        a.setApplicationId(d.getApplicationId());
        a.setApplicationName(d.getApplicationName());
        a.setCreateTime(d.getCreateTime());
        a.setOwner(d.getOwner());   
        Applist.add(a);
    }   

    List<EnvironmentDTO> allEnvironments = environmentService.getAllEnvironments();

    List<Environment> Envlist = new ArrayList<Environment>();

    for(EnvironmentDTO d: allEnvironments)
    {
        Environment e = new Environment();

        e.setEnvironmentId(d.getEnvironmentId());
        e.setEnvironmentName(d.getEnvironmentName());
        e.setOwner(d.getOwner());
        e.setCreateTime(d.getCreateTime());
        Envlist.add(e);
    }

    ArrayList<Object> obj= new ArrayList<Object>();
    obj.addAll(Applist);
    obj.addAll(Envlist);

    return obj;
}

目前我正在使用Object的ArrayList来添加两个对象,但是我收到以下错误:

*SEVERE:找不到Java类java.util.ArrayList和Java类型java.util.List的消息正文编写器,找不到MIME媒体类型application/xml*

我尝试过制作一个共同的父类,但是我有一些普通类的属性,所以不可能有一个共同的父类.

任何人都可以建议我实现这一目标吗？

Answer 1

你可以尝试改变

    ArrayList<Object> obj= new ArrayList<Object>();
    obj.addAll(Applist);
    obj.addAll(Envlist);

至

ArrayList<MyModel> obj= new ArrayList<MyModel>();
MyModel mm = new MyModel();
mm.setVal1(Applist);
mm.setVal2(Envlist);
obj.add(mm);

UPDATE

class MyModel
{
   private ApplicationDTO appDTO;
   private EnvironmentDTO enDTO;

   //getters settters here
}

这里MyModel只是一个模型类,有两个fields按照你的要求..
希望这有帮助