更新时间:2022-10-20 22:21:36
我使用了@LiorH 的示例并将其扩展为:
@XmlRootElement(name="列表")公共类 JaxbList请注意,它使用泛型,因此您可以将它与 String 之外的其他类一起使用.现在,应用程序代码很简单:
@得到@Path("/test2")公共 JaxbList test2(){列表列表=新向量();list.add("a");list.add("b");返回新的 JaxbList(list);}代码>为什么 JAXB 包中不存在这个简单的类?有人在其他地方看到过类似的东西吗?
I'm trying to create a very simple REST server. I just have a test method that will return a List of Strings. Here's the code:
@GET
@Path("/test2")
public List test2(){
List list=new Vector();
list.add("a");
list.add("b");
return list;
}
It gives the following error:
SEVERE: A message body writer for Java type, class java.util.Vector, and MIME media type, application/octet-stream, was not found
I was hoping JAXB had a default setting for simple types like String, Integer, etc. I guess not. Here's what I imagined:
<Strings>
<String>a</String>
<String>b</String>
</Strings>
What's the easiest way to make this method work?
I used @LiorH's example and expanded it to:
@XmlRootElement(name="List")
public class JaxbList<T>{
protected List<T> list;
public JaxbList(){}
public JaxbList(List<T> list){
this.list=list;
}
@XmlElement(name="Item")
public List<T> getList(){
return list;
}
}
Note, that it uses generics so you can use it with other classes than String. Now, the application code is simply:
@GET
@Path("/test2")
public JaxbList test2(){
List list=new Vector();
list.add("a");
list.add("b");
return new JaxbList(list);
}
Why doesn't this simple class exist in the JAXB package? Anyone see anything like it elsewhere?