import javax.json.JsonObject; //导入方法依赖的package包/类

private JsonObject getRatings(Cookie user, String xreq, String xtraceid, String xspanid,

String xparentspanid, String xsampled, String xflags, String xotspan){

ClientBuilder cb = ClientBuilder.newBuilder();

String timeout = star_color.equals("black") ? "10000" : "2500";

cb.property("com.ibm.ws.jaxrs.client.connection.timeout", timeout);

cb.property("com.ibm.ws.jaxrs.client.receive.timeout", timeout);

Client client = cb.build();

WebTarget ratingsTarget = client.target(ratings_service);

Invocation.Builder builder = ratingsTarget.request(MediaType.APPLICATION_JSON);

if(xreq!=null) {

builder.header("x-request-id",xreq);

}

if(xtraceid!=null) {

builder.header("x-b3-traceid",xtraceid);

}

if(xspanid!=null) {

builder.header("x-b3-spanid",xspanid);

}

if(xparentspanid!=null) {

builder.header("x-b3-parentspanid",xparentspanid);

}

if(xsampled!=null) {

builder.header("x-b3-sampled",xsampled);

}

if(xflags!=null) {

builder.header("x-b3-flags",xflags);

}

if(xotspan!=null) {

builder.header("x-ot-span-context",xotspan);

}

if(user!=null) {

builder.cookie(user);

}

Response r = builder.get();

int statusCode = r.getStatusInfo().getStatusCode();

if (statusCode == Response.Status.OK.getStatusCode() ) {

StringReader stringReader = new StringReader(r.readEntity(String.class));

try (JsonReader jsonReader = Json.createReader(stringReader)) {

JsonObject j = jsonReader.readObject();

JsonObjectBuilder jb = Json.createObjectBuilder();

for(String key : j.keySet()){

int count = j.getInt(key);

String stars = "";

for(int i=0; i

stars += "";

}

stars += "";

if(count<5){

for(int i=0; i

stars += "";

}

}

jb.add(key,stars);

}

JsonObject result = jb.build();

return result;

}

}else{

System.out.println("Error: unable to contact "+ratings_service+" got status of "+statusCode);

return null;

}

}