Android Xutils3网络请求的封装详解及实例代码

compile 'org.xutils:xutils:3.3.40'

/** * 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); // 是否输出debug日志, 开启debug会影响性能.  }}

 android:name=".activitys.MyApp"

 private volatile static XutilsHttp instance;  private Handler handler;  private XutilsHttp(){    handler = new Handler(Looper.getMainLooper());  }  /**   * 单利模式   * @return   */  public static XutilsHttp getInstance(){    if (instance == null){      synchronized (XutilsHttp.class){        if (instance == null){          instance = new XutilsHttp();        }      }    }    return instance;  }

 //接口回调  public interface XCallBack{    void onResponse(String result);    void onFail(String result);  }  //下载的接口回调  public interface XDownLoadCallBack{    void onstart();    void onLoading(long total,long current,boolean isDownloading);    void onSuccess(File result);    void onFail(String result);    void onFinished();  }

  /**   * 普通get请求   * @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);        }      }    });  }

 /**   * 带缓存数据的异步get请求   * @param url   * @param maps   * @param ifCache   是否缓存   * @param cacheTime  缓存存活时间   * @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: 信任缓存数据, 不在发起网络请求; false不信任缓存数据.        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);        }      }    });  }

 /**   * 异步post请求   * @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);        }      }    });  }

  /**   * 带缓存数据的异步post请求   * @param url   * @param maps   * @param ifCache   是否缓存   * @param cacheTime  缓存存活时间   * @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: 信任缓存数据, 不在发起网络请求; false不信任缓存数据.        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);        }      }    });  }

  /**   * 下载文件   * @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) {        //下载完成会走该方法        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();            }          }        });      }      //网络请求之前回调      @Override      public void onWaiting() {      }      //网络请求开始的时候回调      @Override      public void onStarted() {        handler.post(new Runnable() {          @Override          public void run() {            if (null != callback){              callback.onstart();            }          }        });      }      //下载的时候不断回调的方法      @Override      public void onLoading(final long total, final long current, final boolean isDownloading) {        //当前进度和文件总大小        handler.post(new Runnable() {          @Override          public void run() {            if (callback!=null){              callback.onLoading(total,current,isDownloading);            }          }        });      }    });  }

  /**   * 文件上传   *   * @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());      }    }    // 有上传文件时使用multipart表单, 否则上传原始文件流.    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() {      }    });  }

  /**   * 上传Json串到服务器   * @param url   * @param maps 将需要传的各个参数放在Map集合里面   */  public void upLoadJson(String url, Map<String, String> maps, final XCallBack callback){    JSONObject js_request = new JSONObject();//服务器需要传参的json对象    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>() {//发起传参为json的post请求，      // Callback.CacheCallback<String>的泛型为后台返回数据的类型，      // 根据实际需求更改      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);        }      }    });  }

   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) {        //当前进度和文件总大小        mProgressDialog.setMax((int) total);        mProgressDialog.setProgress((int) current);      }      @Override      public void onSuccess(File result) {        //下载完成会走该方法        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);      }    });

   XutilsHttp.getInstance().postCache(url, null, true, 60000, new XutilsHttp.XCallBack() {      @Override      public void onResponse(String result) {        // 成功获取数据      }      @Override      public void onFail(String result) {        Toast.makeText(MainActivity.this, result, Toast.LENGTH_SHORT).show();      }    });