arrays - 使用 get 将列表或数组传递给 RESTeasy

Question

我在各种示例中看到过这种情况，这些示例展示了如何创建将数组或对象列表作为 URL 一部分的 REST 服务。

我的问题是，如何使用 RESTeasy 实现它？类似下面的内容将是我假设它的工作方式。

   @GET
   @Path("/stuff/")
   @Produces("application/json")
    public StuffResponse getStuffByThings(
            @QueryParam("things") List<Thing> things);

Answer 1

创建一个 StringConverter并使用包装器对象。这是一个快速而肮脏的例子:

public class QueryParamAsListTest {
public static class Thing {
    String value;
     Thing(String value){ this.value = value; }
}

public static class ManyThings {
    List<Thing> things = new ArrayList<Thing>();

    ManyThings(String values){
        for(String value : values.split(",")){
            things.add(new Thing(value));
        }
    }
}

static class Converter implements StringConverter<ManyThings> {

    public ManyThings fromString(String str) {
        return new ManyThings(str);
    }

    public String toString(ManyThings value) {
        //TODO: implement
        return value.toString();
    }

}

@Path("/")
public static class Service {
    @GET
    @Path("/stuff/")
    public int getStuffByThings(
        @QueryParam("things") ManyThings things){

        return things.things.size();
    }
}



@Test
public void test() throws Exception {
    Dispatcher dispatcher = MockDispatcherFactory.createDispatcher();
    dispatcher.getProviderFactory().addStringConverter(new Converter());
    dispatcher.getRegistry().addSingletonResource(new Service());

    MockHttpRequest request = MockHttpRequest.get("/stuff?things=a,b,c");
    MockHttpResponse response = new MockHttpResponse();

    dispatcher.invoke(request, response);

    Assert.assertEquals("3", response.getContentAsString());


}
}

我想你也可以使用 StringParamUnmarshaller