java - Ä«Ä«¿ÀÆäÀÌ - Ä«Ä«¿ÀÅå rest api ¿¹Á¦
¾Èµå·ÎÀ̵忡¼ RESTful À¥ ¼ºñ½º¸¦ È£ÃâÇÏ´Â ¹æ¹ý? (7)
Jersey Framework ¹× Java¸¦ »ç¿ëÇÏ¿© Netbean IDE¿¡ REST À¥ ¼ºñ½º¸¦ ÀÛ¼ºÇß½À´Ï´Ù.
»ç¿ëÀÚ°¡ »ç¿ëÀÚ À̸§°ú ¾ÏÈ£¸¦ Á¦°øÇؾßÇÏ´Â ¸ðµç ¿äû¿¡ ´ëÇØÀÌ ÀÎÁõÀº ¸ð¹ü »ç·Ê°¡ ¾Æ´Õ´Ï´Ù ( curl -u username:password -X PUT http://localhsot:8080/user
¿Í °°Àº curl ¸í·É curl -u username:password -X PUT http://localhsot:8080/user
) .
ÀÌÁ¦ Android Ŭ·¡½º¿¡¼ REST À¥ ¼ºñ½º¸¦ È£ÃâÇÏ·Á°íÇÕ´Ï´Ù.
¾î¶»°ÔÇؾßÇմϱî?
DefaultHttpClient
¹× CredentialUsernameAndPassword
¸¦ »ç¿ëÇÏ´Â Android Ŭ·¡½º°¡ ÀÖÁö¸¸ Eclipse¿¡¼ ½ÇÇàÇÒ ¶§ ·±Å¸ÀÓ ¿¹¿Ü ¶Ç´Â SDK ¿¹¿Ü°¡ ¹ß»ýÇÏ´Â °æ¿ì°¡ ÀÖ½À´Ï´Ù.
RestTemplateÀÌÀÖ´Â Android ¿ë Spring »ç¿ë https://spring.io/guides/gs/consuming-rest-android/
// The connection URL
String url = "https://ajax.googleapis.com/ajax/" +
"services/search/web?v=1.0&q={query}";
// Create a new RestTemplate instance
RestTemplate restTemplate = new RestTemplate();
// Add the String message converter
restTemplate.getMessageConverters().add(new StringHttpMessageConverter());
// Make the HTTP GET request, marshaling the response to a String
String result = restTemplate.getForObject(url, String.class, "Android");
³ª´Â Æí¾ÈÇÑ À¥ ¼ºñ½º¸¦ È£ÃâÇϱâ À§ÇØ OkHttpClient
¸¦ »ç¿ë OkHttpClient
. ¸Å¿ì °£´ÜÇÕ´Ï´Ù.
OkHttpClient httpClient = new OkHttpClient();
Request request = new Request.Builder()
.url(url)
.build();
Response response = httpClient.newCall(request).execute();
String body = response.body().string()
³×°¡ÇÏ´Â ÀÏ¿¡ ±×¸¸ÇØ! :)
RESTful Ŭ¶óÀ̾ðÆ®¸¦ SERVICE·Î ±¸ÇöÇÏ°í ÁýÁßÀû ÀÎ ³×Æ®¿öÅ© ÀÛ¾÷À» ÀÛ¾÷ µ¶¸³ ±¸¼º ¿ä¼Ò ÀÎ SERVICE ¿¡ À§ÀÓÇÕ´Ï´Ù.
ÀÌ ÅëÂû·ÂÀÖ´Â ºñµð¿À http://www.youtube.com/watch?v=xHXn3Kg2IQE ¿¡¼ Virgil Dobjanschi°¡ÀÌ ¹®Á¦¿¡ ´ëÇÑ Á¢±Ù ¹æ½ÄÀ» ¼³¸íÇÏ´Â °÷À» È®ÀÎÇϽʽÿÀ.
´ÙÀ½Àº °£´ÜÇÑ Webservice CallingÀ» À§ÇØ ¸¸µç ¶óÀ̺귯¸®ÀÔ´Ï´Ù.
´ç½ÅÀº ÇϳªÀÇ ¶óÀÎ gradle Á¾¼Ó¼ºÀ» Ãß°¡ÇÏ¿© ÀÌ°ÍÀ» »ç¿ëÇÒ ¼ö ÀÖ½À´Ï´Ù -
compile 'com.scantity.ScHttpLibrary:ScHttpLibrary:1.0.0'
¿©±â¿¡ »ç¿ëÇÏ´Â µ¥¸ð°¡ ÀÖ½À´Ï´Ù.
¾Èµå·ÎÀ̵忡¼ RestFulÀ» »ç¿ëÇÏ·Á¸é ´ÙÀ½ ´Ü°è¸¦ µû¸£½Ê½Ã¿À.
1 ´Ü°è
¾Èµå·ÎÀÌµå ºó ÇÁ·ÎÁ§Æ®¸¦ ¸¸µì´Ï´Ù.
2 ´Ü°è
ÀÎÅÍ³Ý ¾×¼¼½º ±ÇÇÑÀÌ ÇÊ¿äÇÕ´Ï´Ù. ¾Æ·¡ Äڵ带 AndroidManifest.xml ÆÄÀÏ¿¡ ÀÛ¼ºÇϽʽÿÀ.
<uses-permission android:name="android.permission.INTERNET">
</uses-permission>
3 ´Ü°è
´Ù¸¥ ¼¹ö ¶Ç´Â µ¿ÀÏÇÑ ½Ã½ºÅÛ¿¡¼ ½ÇÇàÁßÀÎ RestFul urlÀÌ ÇÊ¿äÇÕ´Ï´Ù.
4 ´Ü°è
AsyncTask¸¦ È®Àå ÇÒ RestFul Ŭ¶óÀ̾ðÆ®¸¦ ¸¸µì´Ï´Ù. RestFulPost.java¸¦ ÂüÁ¶ÇϽʽÿÀ.
5 ´Ü°è
RestFull ¿äû ¹× ÀÀ´ä¿¡ ´ëÇÑ DTO Ŭ·¡½º¸¦ ¸¸µì´Ï´Ù.
RestFulPost.java
package javaant.com.consuming_restful.restclient;
import android.app.ProgressDialog;
import android.content.Context;
import android.os.AsyncTask;
import android.util.Log;
import com.google.gson.Gson;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import java.util.Map;
import javaant.com.consuming_restful.util.Util;
/**
* Created by Nirmal Dhara on 29-10-2015.
*/
public class RestFulPost extends AsyncTask<map, void,="" string=""> {
RestFulResult restFulResult = null;
ProgressDialog Asycdialog;
String msg;
String task;
public RestFulPost(RestFulResult restFulResult, Context context, String msg,String task) {
this.restFulResult = restFulResult;
this.task=task;
this.msg = msg;
Asycdialog = new ProgressDialog(context);
}
@Override
protected String doInBackground(Map... params) {
String responseStr = null;
Object dataMap = null;
HttpPost httpost = new HttpPost(params[0].get("url").toString());
try {
dataMap = (Object) params[0].get("data");
Gson gson = new Gson();
Log.d("data map", "data map------" + gson.toJson(dataMap));
httpost.setEntity(new StringEntity(gson.toJson(dataMap)));
httpost.setHeader("Accept", "application/json");
httpost.setHeader("Content-type", "application/json");
DefaultHttpClient httpclient= Util.getClient();
HttpResponse response = httpclient.execute(httpost);
int statusCode = response.getStatusLine().getStatusCode();
Log.d("resonse code", "----------------" + statusCode);
if (statusCode == 200)
responseStr = EntityUtils.toString(response.getEntity());
if (statusCode == 404) {
responseStr = "{\n" +
"\"status\":\"fail\",\n" +
" \"data\":{\n" +
"\"ValidUser\":\"Service not available\",\n" +
"\"code\":\"404\"\n" +
"}\n" +
"}";
}
} catch (Exception e) {
e.printStackTrace();
}
return responseStr;
}
@Override
protected void onPreExecute() {
Asycdialog.setMessage(msg);
//show dialog
Asycdialog.show();
super.onPreExecute();
}
@Override
protected void onPostExecute(String s) {
Asycdialog.dismiss();
restFulResult.onResfulResponse(s,task);
}
}
ÀÚ¼¼ÇÑ ³»¿ë°ú Àüü ÄÚµå´Â http://javaant.com/consume-a-restful-webservice-in-android/#.VwzbipN96Hs È®ÀÎÇϽʽÿÀ.
¾î¼¸é ´Ê¾ú°Å³ª ÀÌ¹Ì »ç¿ë Çغ» ÀûÀÌ ÀÖÁö¸¸ ksoap À̶ó´Â À̸§ÀÇ ¶Ç ´Ù¸¥ °ÍÀÌ ÀÖ½À´Ï´Ù. ¶ÇÇÑ ½Ã°£ ÃÊ°ú°¡ Æ÷ÇԵǾî SOAP ±â¹ÝÀÇ À¥ ¼ºñ½º¸¦ È¿À²ÀûÀ¸·Î ÆÄ½Ì ÇÒ ¼ö ÀÖ½À´Ï´Ù. ³ª´Â ¶ÇÇÑ ³» ÆĽ̿¡ ¸Â°Ô ¸î °¡Áö º¯°æÀ»Çß´Ù.
ÃÖ±Ù Á¦ 3 ÀÚ ¶óÀ̺귯¸® ÀÎ Square Retrofit ÀÌ ¾÷¹«¸¦ Àß Ã³¸® ÇÒ ¼ö ÀÖ´Ù´Â »ç½ÇÀÌ ¹ß°ßµÇ¾ú½À´Ï´Ù.
REST ¿£µå Æ÷ÀÎÆ® Á¤ÀÇ
public interface GitHubService {
@GET("/users/{user}/repos")
List<Repo> listRepos(@Path("user") String user,Callback<List<User>> cb);
}
±¸Ã¼ÀûÀÎ ¼ºñ½º ¹Þ±â
RestAdapter restAdapter = new RestAdapter.Builder()
.setEndpoint("https://api.github.com")
.build();
GitHubService service = restAdapter.create(GitHubService.class);
REST ³¡Á¡ È£Ãâ
List<Repo> repos = service.listRepos("octocat",new Callback<List<User>>() {
@Override
public void failure(final RetrofitError error) {
android.util.Log.i("example", "Error, body: " + error.getBody().toString());
}
@Override
public void success(List<User> users, Response response) {
// Do something with the List of Users object returned
// you may populate your adapter here
}
});
¶óÀ̺귯¸®´Â json Á÷·ÄÈ ¹× ȲÆóȸ¦ ó¸®ÇÕ´Ï´Ù. Á÷·ÄÈ ¹× Á÷·Äȸ¦ »ç¿ëÀÚ Á¤ÀÇ ÇÒ ¼öµµ ÀÖ½À´Ï´Ù.
Gson gson = new GsonBuilder()
.setFieldNamingPolicy(FieldNamingPolicy.LOWER_CASE_WITH_UNDERSCORES)
.registerTypeAdapter(Date.class, new DateTypeAdapter())
.create();
RestAdapter restAdapter = new RestAdapter.Builder()
.setEndpoint("https://api.github.com")
.setConverter(new GsonConverter(gson))
.build();