Asynchttpurlconnection 网络框架 (HttpURLConnection+newCachedThreadPool)

最新推荐文章于 2023-06-07 22:11:30 发布

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最新推荐文章于 2023-06-07 22:11:30 发布 · 589 阅读

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本文介绍了一种基于HttpURLConnection和newCachedThreadPool的网络框架实现。框架包括Request、Response、ResponseListener等核心类，利用newCachedThreadPool的线程回收特性，简化网络请求流程。Request用于设置请求参数和响应体，Application中初始化线程池，Activity或Fragment通过实现ResponseListener接口接收返回数据。RequestParams用于存储请求参数，NetWorkThreadManager管理线程池，NetWorkRunnable处理网络请求并在子线程与主线程间传递信息。

看过git上volley和asynchttpclient网络框架的源码好长时间了，打算自己弄个网络框架是基于HttpURLConnection+newCachedThreadPool，目前httpclient已经被淘汰了，盛行的是HttpURLConnection，像volley和okhttp都主打HttpURLConnection，所以我弄了这个框架。

框架结构相对来说比较简单：Request、Response、ResponseListener、NewWorkManager、NewWorkRunnable、RequestParams、Erro等主要的类；
newCachedThreadPool创建一个可缓存线程池，如果线程池长度超过处理需要，可灵活回收空闲线程，若无可回收，则新建线程。基于这个优点所以我选择它。Request封装了请求参数和响应体，初始化线程池，完成整个请求过程。

Request主要用来初始化请求的参数和返回体等。首先要在Application里初始化initRequest(）创建线程池。防止context内存泄漏采用了WeakReference引用；

public class Request {
    private static NetWorkThreadManager newtWorkInstance;
    //在application里初始化
    public static void initRequest(){
        newtWorkInstance = NetWorkThreadManager.getNetWorkThreadPoolInstance();
    }
    private WeakReference weakReference;
    private Activity activity;
    private Response<?> response;
    private RequestParams requestParams;
    private int tag;
    public Request(Response<?> response,Activity activity,RequestParams requestParams,int tag){
        weakReference = new WeakReference<Activity>(activity);
        this.response = response;
        this.requestParams = requestParams;
        this.tag = tag;
        this.activity = activity;
    }
    public Request(Response response,Fragment fragment,RequestParams requestParams,int tag){
        weakReference = new WeakReference<Fragment>(fragment);
        this.response = response;
        this.requestParams = requestParams;
        this.tag = tag;
        activity = fragment.getActivity();
    }
    private int requestType = 0;
    public void setRequestType(int requestType){
        this.requestType = requestType;
    }
    public int getRequestType(){
        return requestType;
    }
    public void requestStart(){
        if(!Utils.isNetworkAvailable(activity)){
            ((ResponseListener)weakReference.get()).onError(new Error("当前无网络"),tag);
            return;
        }
        response.getResponseListener().onBefore(tag);
        netWorkRunnable = new NetWorkRunnable(this);
        newtWorkInstance.cachedThreadPool.execute(netWorkRunnable);
    }
    private NetWorkRunnable netWorkRunnable;
    public RequestParams getRequestParams