Java tutorial
/*Copyright 2016 TommyLemon(https://github.com/TommyLemon) Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.*/ package apijson.demo.client.manager; import static zuo.biao.apijson.StringUtil.UTF_8; import java.io.IOException; import java.net.CookieHandler; import java.net.URI; import java.net.URLEncoder; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.concurrent.TimeUnit; import org.json.JSONException; import org.json.JSONObject; import zuo.biao.apijson.JSON; import zuo.biao.apijson.JSONRequest; import zuo.biao.apijson.StringUtil; import zuo.biao.library.manager.HttpManager.OnHttpResponseListener; import zuo.biao.library.util.Log; import android.content.Context; import android.os.AsyncTask; import android.text.TextUtils; import apijson.demo.client.application.APIJSONApplication; import com.squareup.okhttp.MediaType; import com.squareup.okhttp.OkHttpClient; import com.squareup.okhttp.Request; import com.squareup.okhttp.RequestBody; import com.squareup.okhttp.Response; /**HTTP? * @author Lemon * @use HttpManager.getInstance().get(...)HttpManager.getInstance().post(...) > onHttpRequestSuccessonHttpRequestError?HTTP * @must getTokengetResponseCodegetResponseDataTODO */ public class HttpManager { private static final String TAG = "HttpManager"; private Context context; private static HttpManager instance;// ? private HttpManager(Context context) { this.context = context; } public synchronized static HttpManager getInstance() { if (instance == null) { instance = new HttpManager(APIJSONApplication.getInstance()); } return instance; } /** * ??1??1 */ public static final int PAGE_NUM_0 = 0; public static final String KEY_TOKEN = "token"; public static final String KEY_COOKIE = "cookie"; /**GET * @param url ?url * @param request * @param requestCode * ?onActivityResult??activity????? * {@link OnHttpResponseListener#onHttpResponse(int, String, Exception)}<br/> * ??requestCode?? * @param listener */ public void get(final String url_, final com.alibaba.fastjson.JSONObject request, final int requestCode, final OnHttpResponseListener listener) { new AsyncTask<Void, Void, Exception>() { String result; @Override protected Exception doInBackground(Void... params) { String body = request == null || request.isEmpty() ? null : JSON.toJSONString(request); Log.d(TAG, "post url_ = " + url_ + "\n request = \n" + body); try { String url = StringUtil.getNoBlankString(url_) + (body == null ? "" : URLEncoder.encode(StringUtil.getNoBlankString(body), UTF_8)); StringBuffer sb = new StringBuffer(); sb.append(url); OkHttpClient client = getHttpClient(url); if (client == null) { return new Exception(TAG + ".get AsyncTask.doInBackground client == null >> return;"); } result = getResponseJson(client, new Request.Builder().addHeader(KEY_TOKEN, getToken(url)).url(sb.toString()).build()); } catch (Exception e) { Log.e(TAG, "get AsyncTask.doInBackground try { result = getResponseJson(..." + "} catch (Exception e) {\n" + e.getMessage()); return e; } return null; } @Override protected void onPostExecute(Exception exception) { super.onPostExecute(exception); listener.onHttpResponse(requestCode, result, exception); } }.execute(); } public static final MediaType TYPE_JSON = MediaType.parse("application/json; charset=utf-8"); /**POST * @param url ?url * @param request * @param requestCode * ?onActivityResult??activity????? * {@link OnHttpResponseListener#onHttpResponse(int, String, Exception)}<br/> * ??requestCode?? * @param listener */ public void post(final String url_, final com.alibaba.fastjson.JSONObject request, final int requestCode, final OnHttpResponseListener listener) { if (request == null || request.containsKey(JSONRequest.KEY_TAG) == false) { throw new IllegalArgumentException("post " + url_ + " \n" + " request == null || request.containsKey(JSONRequest.KEY_TAG) == false !!!"); } new AsyncTask<Void, Void, Exception>() { String result; @Override protected Exception doInBackground(Void... params) { try { String url = StringUtil.getNoBlankString(url_); OkHttpClient client = getHttpClient(url); if (client == null) { return new Exception(TAG + ".post AsyncTask.doInBackground client == null >> return;"); } String body = JSON.toJSONString(request); Log.d(TAG, "post url_ = " + url_ + "\n request = \n" + body); RequestBody requestBody = RequestBody.create(TYPE_JSON, body); result = getResponseJson(client, new Request.Builder().addHeader(KEY_TOKEN, getToken(url)) .url(StringUtil.getNoBlankString(url)).post(requestBody).build()); } catch (Exception e) { Log.e(TAG, "post AsyncTask.doInBackground try { result = getResponseJson(..." + "} catch (Exception e) {\n" + e.getMessage()); return e; } return null; } @Override protected void onPostExecute(Exception exception) { super.onPostExecute(exception); listener.onHttpResponse(requestCode, result, exception); } }.execute(); } //httpGet/httpPost <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< /** * @param url * @return */ private OkHttpClient getHttpClient(String url) { Log.i(TAG, "getHttpClient url = " + url); if (StringUtil.isNotEmpty(url, true) == false) { Log.e(TAG, "getHttpClient StringUtil.isNotEmpty(url, true) == false >> return null;"); return null; } OkHttpClient client = new OkHttpClient(); client.setCookieHandler(new HttpHead()); client.setConnectTimeout(15, TimeUnit.SECONDS); client.setWriteTimeout(10, TimeUnit.SECONDS); client.setReadTimeout(10, TimeUnit.SECONDS); return client; } /** * @param paramList * @must demo_***? * @return */ public String getToken(String tag) { return context.getSharedPreferences(KEY_TOKEN, Context.MODE_PRIVATE).getString(KEY_TOKEN + tag, ""); } /** * @param tag * @param value */ public void saveToken(String tag, String value) { context.getSharedPreferences(KEY_TOKEN, Context.MODE_PRIVATE).edit().remove(KEY_TOKEN + tag) .putString(KEY_TOKEN + tag, value).commit(); } /** * @return */ public String getCookie() { return context.getSharedPreferences(KEY_COOKIE, Context.MODE_PRIVATE).getString(KEY_COOKIE, ""); } /** * @param value */ public void saveCookie(String value) { context.getSharedPreferences(KEY_COOKIE, Context.MODE_PRIVATE).edit().remove(KEY_COOKIE) .putString(KEY_COOKIE, value).commit(); } /** * @param client * @param request * @return * @throws Exception */ private String getResponseJson(OkHttpClient client, Request request) throws Exception { if (client == null || request == null) { Log.e(TAG, "getResponseJson client == null || request == null >> return null;"); return null; } Response response = client.newCall(request).execute(); return response.isSuccessful() ? response.body().string() : null; } /**object?key * *?T?try-catch * @param json * @param key * @return * @throws JSONException */ public <T> T getValue(String json, String key) throws JSONException { return getValue(new JSONObject(json), key); } /**object?key * *?T?try-catch * @param object * @param key * @return * @throws JSONException */ @SuppressWarnings("unchecked") public <T> T getValue(JSONObject object, String key) throws JSONException { return (T) object.get(key); } //httpGet/httpPost >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> /**http */ public class HttpHead extends CookieHandler { public HttpHead() { } @Override public Map<String, List<String>> get(URI uri, Map<String, List<String>> requestHeaders) throws IOException { String cookie = getCookie(); Map<String, List<String>> map = new HashMap<String, List<String>>(); map.putAll(requestHeaders); if (!TextUtils.isEmpty(cookie)) { List<String> cList = new ArrayList<String>(); cList.add(cookie); map.put("Cookie", cList); } return map; } @Override public void put(URI uri, Map<String, List<String>> responseHeaders) throws IOException { List<String> list = responseHeaders.get("Set-Cookie"); if (list != null) { for (int i = 0; i < list.size(); i++) { String cookie = list.get(i); if (cookie.startsWith("JSESSIONID")) { saveCookie(list.get(i)); break; } } } } } }