我正在创建一个Java EE客户端,我需要调用一个节点(js)服务器来获取响应。所以我做了一个类,通过它向节点服务器发出请求。 每次我收到回复时,我都需要发送回应代码和回复本身。所以我想创建一个包含响应代码和响应的String数组。Map <Integer,String>或String []?
这里是我的类:
import javax.ws.rs.core.MediaType;
import com.sun.jersey.api.client.Client;
import com.sun.jersey.api.client.ClientResponse;
import com.sun.jersey.api.client.WebResource;
import com.sun.jersey.api.client.config.ClientConfig;
import com.sun.jersey.api.client.config.DefaultClientConfig;
import com.sun.jersey.api.client.filter.LoggingFilter;
import com.sun.jersey.core.impl.provider.entity.StringProvider;
public class RequestHandler {
/**
* Makes a HTTP Request for a given url. The type
* determines which type of request, post or get,
* will be made. The params cane be in form of
* name=value pair or JSON format.
*
* @param type Request method. 1 - Get, 2 - Post.
* @param url url string to which request has to be
* made.
* @param path path of the resource or service for a
* url.
* @param params request parameters. Can be either
* name=value pair or JSON request.
*
* @return String representation of the response.
*
*/
public static String[] makeRequest(int type, String url, String path, String params) {
String[] response = new String[2];
ClientResponse clientResponse = null;
try {
ClientConfig config = new DefaultClientConfig();
config.getClasses().add(StringProvider.class);
Client client = Client.create(config);
WebResource service =
client.resource(url);
client.addFilter(new LoggingFilter());
service.path("rest");
// 1 - GET, 2 - POST
switch (type) {
case 1: {
System.out.println("Making GET request to: " + url + path);
System.out.println("Request Params: " + params);
clientResponse = service.path(path).type(MediaType.APPLICATION_JSON_TYPE).accept(MediaType.APPLICATION_JSON).get(ClientResponse.class); //TODO Code to be corrected, include params
break;
}
case 2: {
System.out.println("Making POST request to: " + url + path);
System.out.println("Request Params: " + params);
clientResponse = service.path(path).type(MediaType.APPLICATION_JSON_TYPE).accept(MediaType.APPLICATION_JSON).post(ClientResponse.class, params);
break;
}
}
} catch (Exception e) {
e.printStackTrace();
response[0] = "500";
response[1] = "Internal Server Error";
return response;
}
response[0] = String.valueOf(clientResponse.getStatus());
response[1] = clientResponse.getEntity(String.class);
System.err.println("Response status: " + response[0]);
return response;
}//end of makeRequest()
}//end of class
但我并没有被创造太多的字符串对象,这将导致性能问题信服。所以我想创建一个Map来发回响应代码和响应。
response.put(500, "Internal Server Error");
但同样,创建具有整数地图和检查每次响应代码创建拳击和Integer对象,又可能导致性能的拆箱的开销。
HashMap<Integer, String> response = RequestHandler.makeRequest(2, urlString, "/login", params);
if (response.containsKey(500)) {
return Message.INTERNAL_SERVER_ERROR;
}
我应该使用哪一个来获得更好的性能?或者有更好的选择吗?
+1为避免过早优化 –