OkHttp3的简单封装

public class OkHttpUtil {   public static final String TAG="OkHttpUtil";   private static OkHttpClient client;   private static OkHttpUtil httpUtil;   private OkHttpUtil(){      client=new OkHttpClient.Builder()            .connectTimeout(10, TimeUnit.SECONDS)            .readTimeout(10,TimeUnit.SECONDS)            .build();   }// 使用单例模式，保证只有一个OkHttpUtil和OkHttpClient 的实例。   public static OkHttpUtil getInstance(){      synchronized (OkHttpUtil.class){         if(httpUtil==null){            httpUtil= new OkHttpUtil();            return httpUtil;         }      }      return httpUtil;   }   /**    * get异步请求    * @param url    */   public static void getData(String url){      Request request=new Request.Builder().url(url)            .build();      client.newCall(request).enqueue(new Callback() {         @Override         public void onFailure(Call call, IOException e) {         }         @Override         public void onResponse(Call call, Response response) throws IOException {            //字符串类型            Log.i(TAG, "getData: " + response.body().string());            //字节数组类型            Log.i(TAG, "getData: " + response.body().bytes());            //字节流类型            Log.i(TAG, "getData: " + response.body().byteStream());            //字符流类型            Log.i(TAG, "getData: " + response.body().charStream());         }      });   }   /**    * 带有多个参数的get请求    * @param url    * @param map    */   public void getParams(String url,Map
     
       map){      String url1=url;      if(map!=null&&map.size()>0){         for(String key:map.keySet()){            url1+="&"+key+"="+map.get(key);         }      }      getData(url1);   }   /**    * 提交单个键值对    * @param url    * @param key    * @param value    */   public void postKeyValuePaire(String url,String key,String value){      FormBody formBody=new FormBody.Builder()            .add(key,value)            .build();      Request request=new Request.Builder()            .url(url)            .post(formBody)            .build();      client.newCall(request).enqueue(new Callback() {         @Override         public void onFailure(Call call, IOException e) {         }         @Override         public void onResponse(Call call, Response response) throws IOException {         }      });   }   /**    * 提交多个键值对    *    * @param url 提交的路径    * @param map 用来放置键值对,map的key对应键,value对应值    */   public void postMap(String url,Map
      
        map){      FormBody.Builder formBody=new FormBody.Builder();      if(map!=null){         for(String key:map.keySet()){            formBody.add(key,map.get(key));         }      }      Request request=new Request.Builder().url(url)            .post(formBody.build())            .build();      client.newCall(request).enqueue(new Callback() {         @Override         public void onFailure(Call call, IOException e) {         }         @Override         public void onResponse(Call call, Response response) throws IOException {         }      });   }   /**    * post提交Json数据    * @param url    * @param content    */   public void postString(String url,String content){      MediaType mediaType=MediaType.parse("application/json;  charset=utf-8");      RequestBody requestBody=RequestBody.create(mediaType,content);      Request request=new Request.Builder()            .url(url)            .post(requestBody)            .build();      client.newCall(request)            .enqueue(new Callback() {               @Override               public void onFailure(Call call, IOException e) {               }               @Override               public void onResponse(Call call, Response response) throws IOException {               }            });   }   /**    * 上传单一文件    */    public void uploadFile(String url, File file, Callback callback){        MediaType type=MediaType.parse(getMediaType(file.getName()));//设置上传文件的类型        MultipartBody.Builder builder = new MultipartBody.Builder()                .setType(MultipartBody.FORM)                .addFormDataPart("file", file.getName(),                        RequestBody.create(type, file));            RequestBody requestBody = builder.build();            Request request = new Request.Builder()                .url(url)                .post(requestBody)                .build();                client.newCall(request).enqueue(callback);    }    /**     * 上传多个文件     * @param url     * @param files     */    public void uploadFiles(String url,File[] files){         MultipartBody.Builder builder=new MultipartBody                 .Builder()                 .setType(MultipartBody.FORM);         for(int i = 0; i
       
         map){         MultipartBody.Builder builder=new MultipartBody.Builder().setType(MultipartBody.FORM);         //添加文件         if(files!=null&&files.length>0){             for(int i=0;i
        
         0){             for(String key:map.keySet()){                 builder.addFormDataPart(key,map.get(key));             }         }         Request request=new Request.Builder().url(url)                 .post(builder.build())                 .build();         client.newCall(request).enqueue(new Callback() {             @Override             public void onFailure(Call call, IOException e) {             }             @Override public void onResponse(Call call, Response response) throws IOException {             }         });     }    /**     * 根据文件的名称判断文件的MediaType     * @param fileName  文件名     * @return  文件的MediaType     */     private String getMediaType(String fileName){         FileNameMap map= URLConnection.getFileNameMap();         String contentTypeFor=map.getContentTypeFor(fileName);         if(contentTypeFor==null){             contentTypeFor="applicationn/octet-stream";         }         return contentTypeFor;     }    /**    * 设置请求头    * @param headersParams  请求头参数    * @return headers    */     private Headers SetHeaders(Map
         
           headersParams){         Headers headers=null;         okhttp3.Headers.Builder headersbuilder=new okhttp3.Headers.Builder();         if(headersParams != null) {             Iterator
          
            iterator = headersParams.keySet().iterator(); String key = ""; while (iterator.hasNext()) { key = iterator.next().toString(); headersbuilder.add(key, headersParams.get(key)); Log.d("get http", "get_headers==="+key+"===="+headersParams.get(key)); } } headers=headersbuilder.build(); return headers; } /** * get方法连接拼加参数 * @param mapParams 参数 * @return 拼接后的url */ private String setUrlParams(Map
           
             mapParams){ String strParams = ""; if(mapParams != null){ Iterator
            
              iterator = mapParams.keySet().iterator(); String key = ""; while (iterator.hasNext()) { key = iterator.next().toString(); strParams += "&"+ key + "=" + mapParams.get(key); } } return strParams; }}