java - 如何使用 RESTEasy 客户端将列表作为查询参数发送

Question

我正在尝试使用 RESTEasy 客户端调用服务发送列表作为查询参数:

服务:

@POST
@Path("/names")
public void getNames(@QueryParam("name") final List<String> names) {

}

客户:

final MultivaluedMap<String, Object> queryParams = new MultivaluedMapImpl<>();
queryParams.add("name", "name1");
queryParams.add("name", "name2");
final ResteasyClient client = new ResteasyClientBuilder().build();
final ResteasyWebTarget target = client.target(url).queryParams(queryParams);
final Builder builder = target.request();
builder.accept(MediaType.APPLICATION_JSON);
final Response response = builder.post(Entity.form(form));

当我调用 /names 端点时将有 1 个元素并且 names.get(0) == [name1, name2]

Answer 1

问题解决了。我最近发布的代码运行良好。

错误的代码是:

final List<String, String> list = new ArrayList<>();
list.add("name1");    
list.add("name2");    
final MultivaluedMap<String, Object> queryParams = new MultivaluedMapImpl<>();
queryParams.addAll("name", list);
final ResteasyClient client = new ResteasyClientBuilder().build();
final ResteasyWebTarget target = client.target(url).queryParams(queryParams);;
final Builder builder = target.request();
builder.accept(MediaType.APPLICATION_JSON)
final Response response = builder.post(Entity.form(form));

如果我查看类 MultivaluedMapImpl 的代码，如果我使用“add”或“addAll”方法，我没有发现任何区别!!