OKHttpClient简单使用工具类

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public class OKhttpmanager {    /**     * 等义成员变量     * OKHttpClient     * Handler     * 类名     */    private OkHttpClient mOkHttpClient;    private static Handler handler;    //防止多个线程同时访问 volatile    private volatile static OKhttpmanager sManager;    /**     * 使用构造方法，完成初始化     */    private OKhttpmanager() {        mOkHttpClient = new OkHttpClient();        handler = new Handler();    }    /**     * 使用单列模式，通过获取的方式拿到对象     */     public static OKhttpmanager getInstance(){         OKhttpmanager instance = null;         if(sManager == null){             synchronized (OKhttpmanager.class){                 if(instance == null){                     instance = new OKhttpmanager();                     sManager=instance;                 }             }         }         return instance;     }    /**     * 定义接口     */     interface Func1 {        void onResponse(String  result);    }     interface  Func2 {         void onResponse(byte[] result);     }    interface  Func3 {        void onResponse(JSONObject jsonObject);    }    /**     * 使用Handler,接口，保证处理数据的逻辑在主线程     * 处理请求网络成功的方法，返回的结果是Json字符串     */    private static void onSuccessJsonStringMethod(final String  jsonValue,final Func1 callBack ){        //这里用的是Handler.post方法，把数据放到主线程中。        handler.post(new Runnable() {            @Override            public void run() {              if(callBack != null) {                  try {                      callBack.onResponse(jsonValue);                  }catch (Exception e){                      e.printStackTrace();                  }              }            }        });    }    //图片处理    private static void onSuccessJsonByteMethod(final byte[] jsonValue, final Func2 callBack){        handler.post(new Runnable() {            @Override            public void run() {                if(callBack != null) {                    try {                        callBack.onResponse(jsonValue);                    }catch (Exception e){                        e.printStackTrace();                    }                }            }        });    }    /**     * 暴露提供给外界调用的方法     * 根据请求的指定的URL返回的结果是Json字符串     */    public void asynJsonStringByURL(String url,final Func1 callBack){        //创建Request对象        Request request = new Request.Builder().url(url).build();        mOkHttpClient.newCall(request).enqueue(new Callback() {            @Override            public void onFailure(Call call, IOException e) {            }            @Override            public void onResponse(Call call, Response response) throws IOException {                //判断Response是否有对象，                if(response != null && response.isSuccessful()){                    onSuccessJsonStringMethod(response.body().string(),callBack);                }            }        });    }    /**     * 下载图片     */    public void asynJsonByteByURL(String url,final Func2 callBack){        Request request = new Request.Builder().url(url).build();        mOkHttpClient.newCall(request).enqueue(new Callback() {            @Override            public void onFailure(Call call, IOException e) {            }            @Override            public void onResponse(Call call, Response response) throws IOException {                if(response !=null &&response.isSuccessful()){                 onSuccessJsonByteMethod(response.body().bytes(),callBack);                }            }        });    }    /**     * 提交表单     */    public void sendComplexForm(String url, Map<String,String> params,final Func1 callBack){        //表单对象        FormBody.Builder form_builder = new FormBody.Builder();        //键值非空判断        if(params != null && !params.isEmpty()){            for (Map.Entry<String, String> entry: params.entrySet()){                form_builder.add(entry.getKey(),entry.getValue());            }        }        FormBody request_boby = form_builder.build();        Request request = new Request.Builder().url(url).post(request_boby).build();        mOkHttpClient.newCall(request).enqueue(new Callback() {            @Override            public void onFailure(Call call, IOException e) {            }            @Override            public void onResponse(Call call, Response response) throws IOException {                if(response != null && response.isSuccessful()){                    onSuccessJsonStringMethod(response.body().string(),callBack);                }            }        });    }}

一个简单有好用的OKhttp工具类就实现了，欢迎大家使用

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