編輯:關於Android編程
Xutils3網絡請求的封裝詳解
封裝了一個Xutil3的網絡請求工具類,分享給大家,本人水平有限,不足之處歡迎指出。
使用前先配置xutils3:
1.gradle中添加
compile 'org.xutils:xutils:3.3.40'
2.自定義Application
/** * Created by Joe on 2016/9/25. */ public class MyApp extends Application { @Override public void onCreate() { super.onCreate(); x.Ext.init(this); x.Ext.setDebug(BuildConfig.DEBUG); // 是否輸出debug日志, 開啟debug會影響性能. } }
3.清單文件application節點點添加
android:name=".activitys.MyApp"
上面三步走完接下來就可以使用了
先寫一個單利類,話不多說上代碼
private volatile static XutilsHttp instance; private Handler handler; private XutilsHttp(){ handler = new Handler(Looper.getMainLooper()); } /** * 單利模式 * @return */ public static XutilsHttp getInstance(){ if (instance == null){ synchronized (XutilsHttp.class){ if (instance == null){ instance = new XutilsHttp(); } } } return instance; }
寫好接口
//接口回調 public interface XCallBack{ void onResponse(String result); void onFail(String result); } //下載的接口回調 public interface XDownLoadCallBack{ void onstart(); void onLoading(long total,long current,boolean isDownloading); void onSuccess(File result); void onFail(String result); void onFinished(); }
封裝普通get請求
/** * 普通get請求 * @param url * @param maps * @param callback */ public void get(String url, Map<String,String> maps, final XCallBack callback){ RequestParams params = new RequestParams(url); if (null != maps && !maps.isEmpty()){ for (Map.Entry<String,String> entry : maps.entrySet()){ params.addQueryStringParameter(entry.getKey(),entry.getValue()); } } x.http().get(params, new Callback.CommonCallback<String>() { private boolean hasError = false; private String result = null; @Override public void onSuccess(String result) { if (result != null) { this.result = result; } } @Override public void onError(Throwable ex, boolean isOnCallback) { hasError = true; Toast.makeText(x.app(), ex.getMessage(), Toast.LENGTH_LONG).show(); } @Override public void onCancelled(CancelledException cex) { } @Override public void onFinished() { if (!hasError && result != null) { onSuccessResponse(result,callback); } } }); }
帶緩存的get請求
/** * 帶緩存數據的異步get請求 * @param url * @param maps * @param ifCache 是否緩存 * @param cacheTime 緩存存活時間 * @param callback */ public void getCache(String url,Map<String,String> maps,final boolean ifCache,long cacheTime,final XCallBack callback){ RequestParams params = new RequestParams(url); params.setCacheMaxAge(cacheTime); if (null != maps && maps.isEmpty()){ for (Map.Entry<String,String> entry : maps.entrySet()){ params.addQueryStringParameter(entry.getKey(),entry.getValue()); } } x.http().get(params, new Callback.CacheCallback<String>() { private boolean hasError = false; private String result = null; @Override public boolean onCache(String result) { if (ifCache && null != result){ this.result = result; } // true: 信任緩存數據, 不在發起網絡請求; false不信任緩存數據. return ifCache; } @Override public void onSuccess(String result) { if (result != null) { this.result = result; } } @Override public void onError(Throwable ex, boolean isOnCallback) { hasError = true; Toast.makeText(x.app(), ex.getMessage(), Toast.LENGTH_LONG).show(); } @Override public void onCancelled(CancelledException cex) { } @Override public void onFinished() { if (!hasError && result != null) { onSuccessResponse(result,callback); } } }); }
普通post請求
/** * 異步post請求 * @param url * @param maps * @param callback */ public void post(String url, Map<String,String> maps, final XCallBack callback){ RequestParams params = new RequestParams(url); if (null != maps && !maps.isEmpty()){ for (Map.Entry<String,String> entry : maps.entrySet()){ params.addBodyParameter(entry.getKey(),entry.getValue()); } } x.http().post(params, new Callback.CommonCallback<String>() { private boolean hasError = false; private String result = null; @Override public void onSuccess(String result) { if (result != null) { this.result = result; } } @Override public void onError(Throwable ex, boolean isOnCallback) { hasError = true; onFailResponse(ex.getMessage(),callback); } @Override public void onCancelled(CancelledException cex) { } @Override public void onFinished() { if (!hasError && result != null) { onSuccessResponse(result,callback); } } }); }
帶緩存的post請求
/** * 帶緩存數據的異步post請求 * @param url * @param maps * @param ifCache 是否緩存 * @param cacheTime 緩存存活時間 * @param callback */ public void postCache(String url,Map<String,String> maps,final boolean ifCache,long cacheTime,final XCallBack callback){ RequestParams params = new RequestParams(url); params.setCacheMaxAge(cacheTime); if (null != maps && maps.isEmpty()){ for (Map.Entry<String,String> entry : maps.entrySet()){ params.addBodyParameter(entry.getKey(),entry.getValue()); } } x.http().get(params, new Callback.CacheCallback<String>() { private boolean hasError = false; private String result = null; @Override public boolean onCache(String result) { if (ifCache && null != result){ this.result = result; } // true: 信任緩存數據, 不在發起網絡請求; false不信任緩存數據. return ifCache; } @Override public void onSuccess(String result) { if (result != null) { this.result = result; } } @Override public void onError(Throwable ex, boolean isOnCallback) { hasError = true; Toast.makeText(x.app(), ex.getMessage(), Toast.LENGTH_LONG).show(); } @Override public void onCancelled(CancelledException cex) { } @Override public void onFinished() { if (!hasError && result != null) { onSuccessResponse(result,callback); } } }); }
文件的下載
/** * 下載文件 * @param url * @param filePath * @param callback */ public void downFile(String url, String filePath, final XDownLoadCallBack callback){ RequestParams params = new RequestParams(url); params.setSaveFilePath(filePath); params.setAutoRename(true); x.http().get(params, new Callback.ProgressCallback<File>() { @Override public void onSuccess(final File result) { //下載完成會走該方法 handler.post(new Runnable() { @Override public void run() { if (callback!=null){ callback.onSuccess(result); } } }); } @Override public void onError(final Throwable ex, boolean isOnCallback) { handler.post(new Runnable() { @Override public void run() { if (null != callback){ callback.onFail(ex.getMessage()); } } }); } @Override public void onCancelled(CancelledException cex) { } @Override public void onFinished() { handler.post(new Runnable() { @Override public void run() { if (callback!=null){ callback.onFinished(); } } }); } //網絡請求之前回調 @Override public void onWaiting() { } //網絡請求開始的時候回調 @Override public void onStarted() { handler.post(new Runnable() { @Override public void run() { if (null != callback){ callback.onstart(); } } }); } //下載的時候不斷回調的方法 @Override public void onLoading(final long total, final long current, final boolean isDownloading) { //當前進度和文件總大小 handler.post(new Runnable() { @Override public void run() { if (callback!=null){ callback.onLoading(total,current,isDownloading); } } }); } }); }
文件的上傳
/** * 文件上傳 * * @param url * @param maps * @param file * @param callback */ public void upLoadFile(String url, Map<String, String> maps, Map<String, File> file, final XCallBack callback) { RequestParams params = new RequestParams(url); if (maps != null && !maps.isEmpty()) { for (Map.Entry<String, String> entry : maps.entrySet()) { params.addBodyParameter(entry.getKey(), entry.getValue()); } } if (file != null) { for (Map.Entry<String, File> entry : file.entrySet()) { params.addBodyParameter(entry.getKey(), entry.getValue().getAbsoluteFile()); } } // 有上傳文件時使用multipart表單, 否則上傳原始文件流. params.setMultipart(true); x.http().post(params, new Callback.CommonCallback<String>() { @Override public void onSuccess(String result) { onSuccessResponse(result, callback); } @Override public void onError(Throwable ex, boolean isOnCallback) { } @Override public void onCancelled(CancelledException cex) { } @Override public void onFinished() { } }); }
上傳Json字符串到服務器
/** * 上傳Json串到服務器 * @param url * @param maps 將需要傳的各個參數放在Map集合裡面 */ public void upLoadJson(String url, Map<String, String> maps, final XCallBack callback){ JSONObject js_request = new JSONObject();//服務器需要傳參的json對象 try { for (Map.Entry<String,String> entry : maps.entrySet()){ js_request.put(entry.getKey(),entry.getValue()); } } catch (JSONException e) { e.printStackTrace(); } RequestParams params = new RequestParams(url); params.setAsJsonContent(true); params.setBodyContent(js_request.toString()); x.http().post(params, new Callback.CommonCallback<String>() {//發起傳參為json的post請求, // Callback.CacheCallback<String>的泛型為後台返回數據的類型, // 根據實際需求更改 private boolean hasError = false; private String result = null; @Override public void onSuccess(String result) { if (result != null) { this.result = result; } } @Override public void onError(Throwable ex, boolean isOnCallback) { ex.printStackTrace(); } @Override public void onCancelled(CancelledException cex) { } @Override public void onFinished() { if (!hasError && result != null && callback!=null) { onSuccessResponse(result,callback); } } }); }
使用案例:
下載調用:
XutilsHttp.getInstance().downFile(url, Utils.getSDPath() + "/" + "ShopBox_Guide_Video/" + Utils.getFileName(url), new XutilsHttp.XDownLoadCallBack() { @Override public void onstart() { showDialog(DIALOG_DOWNLOAD_PROGRESS); } @Override public void onLoading(long total, long current, boolean isDownloading) { //當前進度和文件總大小 mProgressDialog.setMax((int) total); mProgressDialog.setProgress((int) current); } @Override public void onSuccess(File result) { //下載完成會走該方法 playMedia(result.getPath()); } @Override public void onFail(String result) { Toast.makeText(MainActivity.this, result, Toast.LENGTH_SHORT).show(); } @Override public void onFinished() { dismissDialog(DIALOG_DOWNLOAD_PROGRESS); } });
帶緩存get請求
XutilsHttp.getInstance().postCache(url, null, true, 60000, new XutilsHttp.XCallBack() { @Override public void onResponse(String result) { // 成功獲取數據 } @Override public void onFail(String result) { Toast.makeText(MainActivity.this, result, Toast.LENGTH_SHORT).show(); } });
就是這麼簡單,不足之處請大家多多指點
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