问如何将数据(List<Customer>客户)作为RS查询(URI )的输入发送

EN

@Path("customers")
@Singleton
public class CustomersResource {
...
    @POST
    @Path("addall")
    @Produces("text/html")
    @Consumes(javax.ws.rs.core.MediaType.APPLICATION_XML)
    public String addCustomers(List<Customer> customerList) {
        return "success : received " + customerList.size() ;
    }
    ...
}

public static void main(String[] args) {
    Client client = Client.create();

    WebResource webresource = client.resource( "http://localhost:8080/restdemo/services/customers/addall");

    String input  = "<customerList><customer><name>name1</name></customer><customer><name>name2</name></customer></customerList>";
    String response = webresource.type("application/xml").post( String.class, input );
    System.out.println(response);
}

Exception in thread "main" com.sun.jersey.api.client.ClientHandlerException: com.sun.jersey.api.client.ClientHandlerException: A message body writer for Java type, class java.util.ArrayList, and MIME media type, application/json, was not found
    at com.sun.jersey.client.urlconnection.URLConnectionClientHandler.handle(URLConnectionClientHandler.java:149)
    at com.sun.jersey.api.client.Client.handle(Client.java:648)
    at com.sun.jersey.api.client.WebResource.handle(WebResource.java:680)
    at com.sun.jersey.api.client.WebResource.access$200(WebResource.java:74)
    at com.sun.jersey.api.client.WebResource$Builder.post(WebResource.java:568)
    at restdemoclient.Main.main(Main.java:35)
Caused by: com.sun.jersey.api.client.ClientHandlerException: A message body writer for Java type, class java.util.ArrayList, and MIME media type, application/json, was not found
    at com.sun.jersey.api.client.RequestWriter.writeRequestEntity(RequestWriter.java:288)
    at com.sun.jersey.client.urlconnection.URLConnectionClientHandler._invoke(URLConnectionClientHandler.java:204)
    at com.sun.jersey.client.urlconnection.URLConnectionClientHandler.handle(URLConnectionClientHandler.java:147)
    ... 5 more