Question

您好我正在处理一个使用xxd -i cer.pem | sed -e 's/unsigned char .* = {/const unsigned char OEM_KEYSTORE[] = {/g' -e 's/unsigned int .* = .*;//g'类的旧Android项目，该项目现已折旧并将从API 22中删除。我们如何迁移到org.apache.httpclient但仍保留原始功能？ ALl我的http POST现在无法处理错误

httpUrlConnection

这是我的webservice API调用：

    22 16:16:33.755 5553-6064/com.singPost D/SingPost: payload: <OverseasPostalInfoDetailsRequest xmlns="http://singpost.com/paw/ns"><Country>AFAFG</Country><Weight>100</Weight><DeliveryServiceName></DeliveryServiceName><ItemType></ItemType><PriceRange>999</PriceRange><DeliveryTimeRange>999</DeliveryTimeRange></OverseasPostalInfoDetailsRequest>
08-22 16:16:33.755 5553-6064/com.singPost D/SingPost: Utils-request: https://prdesb1.singpost.com/ma/FilterOverseasPostalInfo
08-22 16:16:35.667 5553-6064/com.singPost E/SingPost: IOException: javax.net.ssl.SSLHandshakeException: Handshake failed
08-22 16:16:35.691 5553-6008/com.singPost E/Surface: getSlotFromBufferLocked: unknown buffer: 0x7f67d844e5c0

我的getHTTPSClient（）

public static String callWS(String url, String module, String method, String payload) throws UnsupportedEncodingException, ClientProtocolException, IOException, ParseException, Exception{
        HttpClient httpsClient;
        HttpPost httppost;

        HttpResponse response  = null;
        String ret = "";

        httpsClient = getHTTPSClient();

        String request = url;
        if(!module.equalsIgnoreCase("") && !method.equalsIgnoreCase("")){
            request += "/" +  module + "/" + method;
        }else if(!module.equalsIgnoreCase("")){
            request += "/" +  module;
        }else if(!method.equalsIgnoreCase("")){
            request += "/" +  method;
        }

        if(Constants.DEBUG_MODE){
            Log.d(Constants.TAG, Utils.class.getSimpleName() + "-request: " + request);
        }

        try {

        httppost = new HttpPost(request);
        httppost.setHeader("Content-Type", Constants.contentType);
        if(payload!=null && !payload.equalsIgnoreCase("")){
            httppost.setEntity(new StringEntity(payload, HTTP.UTF_8));
        }
        response = httpsClient.execute(httppost);
        System.out.println("??**"+response.toString());

        if (response != null) {
            ret = EntityUtils.toString(response.getEntity(), "UTF-8");
            System.out.println("Response: "+ret);
            System.out.println("#############################################");

        }
        }catch(SocketTimeoutException e){
            if(Constants.DEBUG_MODE){
                Log.d(Constants.TAG, "SocketTimeoutException: " + e.toString());
            }
        }catch(Exception e){
            //e.printStackTrace();
            if(Constants.DEBUG_MODE){
                Log.d(Constants.TAG, "Exception: " + e.toString());
            }
        }
        return ret;
    }

在活动（片段）中，我这样称呼

public static DefaultHttpClient getHTTPSClient() {
        SchemeRegistry schemeRegistry = new SchemeRegistry();
        schemeRegistry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
        schemeRegistry.register(new Scheme("https", new EasySSLSocketFactory(), 443));

        HttpParams params = new BasicHttpParams();
        params.setParameter(ConnManagerPNames.MAX_TOTAL_CONNECTIONS, 30);
        params.setParameter(ConnManagerPNames.MAX_CONNECTIONS_PER_ROUTE, new ConnPerRouteBean(30));
        params.setParameter(HttpProtocolParams.USE_EXPECT_CONTINUE, false);

        HttpConnectionParams.setConnectionTimeout(params, Constants.DEFAULT_CONNECTION_TIMEOUT);
        HttpConnectionParams.setSoTimeout(params, Constants.DEFAULT_SOCKET_TIMEOUT);
        ConnManagerParams.setTimeout(params, Constants.DEFAULT_SOCKET_TIMEOUT);
        HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);

        ClientConnectionManager cm = new SingleClientConnManager(params, schemeRegistry);
        DefaultHttpClient httpClient= new DefaultHttpClient(cm, params);
        return httpClient;
    }

一个可能的终点：

result = Utils.callWS(Constants.getSP_WS_URL(), Constants.MODULE_MA, Constants.METHOD_POST_FILTER_OVERSEAS_POSTAL_INFO, payload);

我检查的有效负载是正确的：

https://prdesb1.singpost.com/ma/FilterOverseasPostalInfo

任何人都知道错误的可能性以及我们如何处理它？非常感谢

Answer 1

您可以尝试使用Volley或类似的库来完成任务。使用它比使用旧方法简单得多。您最需要重新编写Web服务调用，但我可以保证它不会像您已经完成的那样困难！ Here's关于如何使用Volley的教程。这很容易上手。

以下是他们网站上有关如何使用Volley的简单示例。 https://developer.android.com/training/volley/requestqueue.html

RequestQueue mRequestQueue;

// Instantiate the cache
Cache cache = new DiskBasedCache(getCacheDir(), 1024 * 1024); // 1MB cap

// Set up the network to use HttpURLConnection as the HTTP client.
Network network = new BasicNetwork(new HurlStack());

// Instantiate the RequestQueue with the cache and network.
mRequestQueue = new RequestQueue(cache, network);

// Start the queue
mRequestQueue.start();

String url ="http://www.example.com";

// Formulate the request and handle the response.
StringRequest stringRequest = new StringRequest(Request.Method.GET, url,
        new Response.Listener<String>() {
    @Override
    public void onResponse(String response) {
        // Do something with the response
    }
},
    new Response.ErrorListener() {
        @Override
        public void onErrorResponse(VolleyError error) {
            // Handle error
    }
});

// Add the request to the RequestQueue.
mRequestQueue.add(stringRequest);

错误发送和接收XML和JSON Android

1 个答案: