OkHttp网络连接封装工具类

我就是我 2022-08-20 04:27 216阅读 0赞

最近，临近春节放假，把自己最近项目中使用 的okhttp使用做个总结，将自己的工具类贡献出来。其中有部分是参考了鸿洋的部分。

就直接上代码。

package com.lidong.demo.utils;
    
    import android.os.Handler;
    import android.os.Looper;
    
    import com.google.gson.internal.$Gson$Types;
    import com.squareup.okhttp.Callback;
    import com.squareup.okhttp.FormEncodingBuilder;
    import com.squareup.okhttp.OkHttpClient;
    import com.squareup.okhttp.Request;
    import com.squareup.okhttp.RequestBody;
    import com.squareup.okhttp.Response;
    
    import java.io.IOException;
    import java.lang.reflect.ParameterizedType;
    import java.lang.reflect.Type;
    import java.net.CookieManager;
    import java.net.CookiePolicy;
    import java.util.List;
    import java.util.concurrent.TimeUnit;
    
    /**
     * Description : OkHttp网络连接封装工具类
     * Author : ldong
     * Date   : 16/1/31
     */
    public class OkHttpUtils {
    
        private static final String TAG = "OkHttpUtils";
    
        private static OkHttpUtils mInstance;
        private OkHttpClient mOkHttpClient;
        private Handler mHandler;
    
        private OkHttpUtils() {
            /**
             * 构建OkHttpClient
             */
            mOkHttpClient = new OkHttpClient();
            /**
             * 设置连接的超时时间
             */
            mOkHttpClient.setConnectTimeout(10, TimeUnit.SECONDS);
            /**
             * 设置响应的超时时间
             */
            mOkHttpClient.setWriteTimeout(10, TimeUnit.SECONDS);
            /**
             * 请求的超时时间
             */
            mOkHttpClient.setReadTimeout(30, TimeUnit.SECONDS);
            /**
             * 允许使用Cookie
             */
            mOkHttpClient.setCookieHandler(new CookieManager(null, CookiePolicy.ACCEPT_ORIGINAL_SERVER));
            /**
             * 获取主线程的handler
             */
            mHandler = new Handler(Looper.getMainLooper());
        }
    
        /**
         * 通过单例模式构造对象
         * @return OkHttpUtils
         */
        private synchronized static OkHttpUtils getmInstance() {
            if (mInstance == null) {
                mInstance = new OkHttpUtils();
            }
            return mInstance;
        }
    
        /**
         * 构造Get请求
         * @param url  请求的url
         * @param callback  结果回调的方法
         */
        private void getRequest(String url, final ResultCallback callback) {
            final Request request = new Request.Builder().url(url).build();
            deliveryResult(callback, request);
        }
    
        /**
         * 构造post 请求
         * @param url 请求的url
         * @param callback 结果回调的方法
         * @param params 请求参数
         */
        private void postRequest(String url, final ResultCallback callback, List<Param> params) {
            Request request = buildPostRequest(url, params);
            deliveryResult(callback, request);
        }
    
        /**
         * 处理请求结果的回调
         * @param callback
         * @param request
         */
        private void deliveryResult(final ResultCallback callback, Request request) {
    
            mOkHttpClient.newCall(request).enqueue(new Callback() {
                @Override
                public void onFailure(Request request, final IOException e) {
                    sendFailCallback(callback, e);
                }
    
                @Override
                public void onResponse(Response response) throws IOException {
                    try {
                        String str = response.body().string();
                        if (callback.mType == String.class) {
                            sendSuccessCallBack(callback, str);
                        } else {
                            Object object = JsonUtils.deserialize(str, callback.mType);
                            sendSuccessCallBack(callback, object);
                        }
                    } catch (final Exception e) {
                        LogUtils.e(TAG, "convert json failure", e);
                        sendFailCallback(callback, e);
                    }
    
                }
            });
        }
    
        /**
         * 发送失败的回调
         * @param callback
         * @param e
         */
        private void sendFailCallback(final ResultCallback callback, final Exception e) {
            mHandler.post(new Runnable() {
                @Override
                public void run() {
                    if (callback != null) {
                        callback.onFailure(e);
                    }
                }
            });
        }
    
        /**
         * 发送成功的调
         * @param callback
         * @param obj
         */
        private void sendSuccessCallBack(final ResultCallback callback, final Object obj) {
            mHandler.post(new Runnable() {
                @Override
                public void run() {
                    if (callback != null) {
                        callback.onSuccess(obj);
                    }
                }
            });
        }
    
        /**
         * 构造post请求
         * @param url  请求url
         * @param params 请求的参数
         * @return 返回 Request
         */
        private Request buildPostRequest(String url, List<Param> params) {
            FormEncodingBuilder builder = new FormEncodingBuilder();
            for (Param param : params) {
                builder.add(param.key, param.value);
            }
            RequestBody requestBody = builder.build();
            return new Request.Builder().url(url).post(requestBody).build();
        }
    
    
        /**********************对外接口************************/
    
        /**
         * get请求
         * @param url  请求url
         * @param callback  请求回调
         */
        public static void get(String url, ResultCallback callback) {
            getmInstance().getRequest(url, callback);
        }
    
        /**
         * post请求
         * @param url       请求url
         * @param callback  请求回调
         * @param params    请求参数
         */
        public static void post(String url, final ResultCallback callback, List<Param> params) {
            getmInstance().postRequest(url, callback, params);
        }
    
        /**
         * http请求回调类,回调方法在UI线程中执行
         * @param <T>
         */
        public static abstract class ResultCallback<T> {
    
            Type mType;
    
            public ResultCallback(){
                mType = getSuperclassTypeParameter(getClass());
            }
    
            static Type getSuperclassTypeParameter(Class<?> subclass) {
                Type superclass = subclass.getGenericSuperclass();//返回父类的类型
                if (superclass instanceof Class) {
                    throw new RuntimeException("Missing type parameter.");
                }
                ParameterizedType parameterized = (ParameterizedType) superclass;
                return $Gson$Types.canonicalize(parameterized.getActualTypeArguments()[0]);
            }
    
            /**
             * 请求成功回调
             * @param response
             */
            public abstract void onSuccess(T response);
    
            /**
             * 请求失败回调
             * @param e
             */
            public abstract void onFailure(Exception e);
        }
    
        /**
         * post请求参数类
         */
        public static class Param {
    
            String key;//请求的参数
            String value;//参数的值
    
            public Param() {
            }
    
            public Param(String key, String value) {
                this.key = key;
                this.value = value;
            }
    
        }
    
    
    }

调用方法非常简单：

1.get请求

OkHttpUtils.get(url, callback);

2.post请求

OkHttpUtils.post(url,callback,params);

基本上就这些吧