【android學習筆記】okHttp網絡請求代碼封裝

【述】為什麼要封裝？不封裝=>初入菜鳥；封裝=>漸入佳境

【目錄】

【Step 1】commonOkHttpClient的封裝

package com.gzyuehong.yuehong.Utils.okhttp;

import java.util.concurrent.TimeUnit;

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.SSLSession;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.OkHttpClient;
import okhttp3.Request;

/**
 * @author actionchen
 * @function 請求的發送；請求參數的配置；https支援
 */
public class CommonOkHttpClient {
    private static final int TIME_OUT=30;//逾時時間
    private static OkHttpClient mOkHttpClient;
    //配置mOkHttpClient參數
    static {
        //建立client對象的建構者
        OkHttpClient.Builder okHttpBulder=new OkHttpClient.Builder();
        //為建構者填充逾時時間
        okHttpBulder.connectTimeout(TIME_OUT, TimeUnit.SECONDS);
        okHttpBulder.readTimeout(TIME_OUT,TimeUnit.SECONDS);
        okHttpBulder.writeTimeout(TIME_OUT,TimeUnit.SECONDS);

        okHttpBulder.followRedirects(true);
        //https支援
        okHttpBulder.hostnameVerifier(new HostnameVerifier() {
            @Override
            public boolean verify(String s, SSLSession sslSession) {
                return true;
            }
        });
        okHttpBulder.sslSocketFactory(HttpsUtils.initSSLSocketFactory(), HttpsUtils.initTrustManager());
        mOkHttpClient = okHttpBulder.build();
    }

    /**
     *發送具體的Https/http請求
     * @param request
     * @param commonCallback
     * @return
     */
    public static Call sendRequest(Request request, Callback commonCallback){

        Call call=mOkHttpClient.newCall(request);
        call.enqueue(commonCallback);
        return call;
    };
}

【Step 2】commonRequest的封裝

package com.gzyuehong.yuehong.Utils.okhttp;

import java.io.File;
import java.util.Map;

import okhttp3.FormBody;
import okhttp3.Headers;
import okhttp3.MediaType;
import okhttp3.MultipartBody;
import okhttp3.Request;
import okhttp3.RequestBody;

/**
 * @author vision
 * @function build the request
 */
public class CommonRequest {
    /**
     * create the key-value Request
     *
     * @param url
     * @param params
     * @return
     */
    public static Request createPostRequest(String url, RequestParams params) {
        return createPostRequest(url, params, null);
    }

    /**可以帶請求頭的Post請求
     * @param url
     * @param params
     * @param headers
     * @return
     */
    public static Request createPostRequest(String url, RequestParams params, RequestParams headers) {
        FormBody.Builder mFormBodyBuild = new FormBody.Builder();
        if (params != null) {
            for (Map.Entry<String, String> entry : params.urlParams.entrySet()) {
                mFormBodyBuild.add(entry.getKey(), entry.getValue());
            }
        }
        //添加請求頭
        Headers.Builder mHeaderBuild = new Headers.Builder();
        if (headers != null) {
            for (Map.Entry<String, String> entry : headers.urlParams.entrySet()) {
                mHeaderBuild.add(entry.getKey(), entry.getValue());
            }
        }
        FormBody mFormBody = mFormBodyBuild.build();
        Headers mHeader = mHeaderBuild.build();
        Request request = new Request.Builder().url(url).
                post(mFormBody).
                headers(mHeader)
                .build();
        return request;
    }

    /**
     * ressemble the params to the url
     *
     * @param url
     * @param params
     * @return
     */
    public static Request createGetRequest(String url, RequestParams params) {

        return createGetRequest(url, params, null);
    }

    /**
     * 可以帶請求頭的Get請求
     * @param url
     * @param params
     * @param headers
     * @return
     */
    public static Request createGetRequest(String url, RequestParams params, RequestParams headers) {
        StringBuilder urlBuilder = new StringBuilder(url).append("?");
        if (params != null) {
            for (Map.Entry<String, String> entry : params.urlParams.entrySet()) {
                urlBuilder.append(entry.getKey()).append("=").append(entry.getValue()).append("&");
            }
        }
        //添加請求頭
        Headers.Builder mHeaderBuild = new Headers.Builder();
        if (headers != null) {
            for (Map.Entry<String, String> entry : headers.urlParams.entrySet()) {
                mHeaderBuild.add(entry.getKey(), entry.getValue());
            }
        }
        Headers mHeader = mHeaderBuild.build();
        return new Request.Builder().
                url(urlBuilder.substring(0, urlBuilder.length() - 1))
                .get()
                .headers(mHeader)
                .build();
    }

    /**
     * @param url
     * @param params
     * @return
     */
    public static Request createMonitorRequest(String url, RequestParams params) {
        StringBuilder urlBuilder = new StringBuilder(url).append("&");
        if (params != null && params.hasParams()) {
            for (Map.Entry<String, String> entry : params.urlParams.entrySet()) {
                urlBuilder.append(entry.getKey()).append("=").append(entry.getValue()).append("&");
            }
        }
        return new Request.Builder().url(urlBuilder.substring(0, urlBuilder.length() - 1)).get().build();
    }

    /**
     * 檔案上傳請求
     *
     * @return
     */
    private static final MediaType FILE_TYPE = MediaType.parse("application/octet-stream");

    public static Request createMultiPostRequest(String url, RequestParams params) {

        MultipartBody.Builder requestBody = new MultipartBody.Builder();
        requestBody.setType(MultipartBody.FORM);
        if (params != null) {

            for (Map.Entry<String, Object> entry : params.fileParams.entrySet()) {
                if (entry.getValue() instanceof File) {
                    requestBody.addPart(Headers.of("Content-Disposition", "form-data; name=\"" + entry.getKey() + "\""),
                            RequestBody.create(FILE_TYPE, (File) entry.getValue()));
                } else if (entry.getValue() instanceof String) {

                    requestBody.addPart(Headers.of("Content-Disposition", "form-data; name=\"" + entry.getKey() + "\""),
                            RequestBody.create(null, (String) entry.getValue()));
                }
            }
        }
        return new Request.Builder().url(url).post(requestBody.build()).build();
    }
}

【Step 3】commonJsonCallback的封裝，可以更深層的封裝，在handleResponse解析伺服器傳回資料的狀态碼，我這--手賤--導緻伺服器回報資料不統一，是以直接傳回obj。

package com.gzyuehong.yuehong.Utils.okhttp.response;

import android.os.Handler;
import android.os.Looper;

import com.gzyuehong.yuehong.Utils.okhttp.exception.OkHttpException;
import com.gzyuehong.yuehong.Utils.okhttp.listener.DisposeDataHandle;
import com.gzyuehong.yuehong.Utils.okhttp.listener.DisposeDataListener;

import org.json.JSONObject;

import java.io.IOException;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.Response;

/**
 * @author vision
 * @function 專門處理JSON的回調
 */
public class CommonJsonCallback implements Callback {

    /**
     * the logic layer exception, may alter in different app
     */
    protected final String RESULT_CODE = "ecode"; // 有傳回則對于http請求來說是成功的，但還有可能是業務邏輯上的錯誤
    protected final int RESULT_CODE_VALUE = 0;
    protected final String ERROR_MSG = "emsg";
    protected final String EMPTY_MSG = "";
    protected final String COOKIE_STORE = "Set-Cookie"; // decide the server it
    // can has the value of
    // set-cookie2

    /**
     * the java layer exception, do not same to the logic error
     */
    protected final int NETWORK_ERROR = -1; // the network relative error
    protected final int JSON_ERROR = -2; // the JSON relative error
    protected final int OTHER_ERROR = -3; // the unknow error

    /**
     * 将其它線程的資料轉發到UI線程
     */
    private Handler mDeliveryHandler;
    private DisposeDataListener mListener;
    private Class<?> mClass;

    public CommonJsonCallback(DisposeDataHandle handle) {
        this.mListener = handle.mListener;
        this.mClass = handle.mClass;
        this.mDeliveryHandler = new Handler(Looper.getMainLooper());
    }

    @Override
    public void onFailure(final Call call, final IOException ioexception) {
        /**
         * 此時還在非UI線程，是以要轉發
         */
        mDeliveryHandler.post(new Runnable() {
            @Override
            public void run() {
                mListener.onFailure(new OkHttpException(NETWORK_ERROR, ioexception));
            }
        });
    }

    @Override
    public void onResponse(final Call call, final Response response) throws IOException {
        final String result = response.body().string();
        mDeliveryHandler.post(new Runnable() {
            @Override
            public void run() {
                handleResponse(result);
            }
        });
    }


    private void handleResponse(Object responseObj) {
        if (responseObj == null || responseObj.toString().trim().equals("")) {
            mListener.onFailure(new OkHttpException(NETWORK_ERROR, EMPTY_MSG));
            return;
        }

        try {
            /**
             * 協定确定後看這裡如何修改，還可以往下進行JSONobject解析，比如擷取資料的狀态碼，但--手賤--伺服器傳回資料格式不統一，我這就直接傳回obj
             */
            JSONObject result = new JSONObject(responseObj.toString());
            /*if (mClass == null) {*/
                mListener.onSuccess(result);
            /*} else {
                *//*Object obj = ResponseEntityToModule.parseJsonObjectToModule(result, mClass);
                if (obj != null) {
                    mListener.onSuccess(obj);
                } else {
                    mListener.onFailure(new OkHttpException(JSON_ERROR, EMPTY_MSG));
                }*//*
            }*/
        } catch (Exception e) {
            mListener.onFailure(new OkHttpException(OTHER_ERROR, e.getMessage()));
            e.printStackTrace();
        }
    }
}

【Step 4】DisposeDataHandle與DisposeDataListener資訊處理回調

package com.gzyuehong.yuehong.Utils.okhttp.listener;

public class DisposeDataHandle {
    public DisposeDataListener mListener=null;
    public Class<?> mClass=null;
    public DisposeDataHandle(DisposeDataListener Listener){

        this.mListener=Listener;
    }
    public DisposeDataHandle(DisposeDataListener Listener,Class<?> clazz){
        this.mClass=clazz;
        this.mListener=Listener;
    }
}

package com.gzyuehong.yuehong.Utils.okhttp.listener;

public interface DisposeDataListener {
    public void onSuccess(Object responseObj);
    public void onFailure(Object resonObj);
}

【Step 5】附加HttpsUtils.java，支援https

package com.gzyuehong.yuehong.Utils.okhttp;

import java.io.IOException;
import java.io.InputStream;
import java.security.KeyManagementException;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.security.UnrecoverableKeyException;
import java.security.cert.CertificateException;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;

import javax.net.ssl.KeyManager;
import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;
import javax.net.ssl.TrustManagerFactory;
import javax.net.ssl.X509TrustManager;

/**
 * @author vision
 * @function support the sslsocket
 */
public class HttpsUtils {
    public static SSLSocketFactory getSslSocketFactory(InputStream[] certificates, InputStream bksFile, String password) {
        try {
            TrustManager[] trustManagers = prepareTrustManager(certificates);
            KeyManager[] keyManagers = prepareKeyManager(bksFile, password);
            SSLContext sslContext = SSLContext.getInstance("SSL");

            sslContext.init(keyManagers, new TrustManager[]
                    {new MyTrustManager(chooseTrustManager(trustManagers))}, new SecureRandom());
            return sslContext.getSocketFactory();
        } catch (NoSuchAlgorithmException e) {
            throw new AssertionError(e);
        } catch (KeyManagementException e) {
            throw new AssertionError(e);
        } catch (KeyStoreException e) {
            throw new AssertionError(e);
        }
    }

    private static TrustManager[] prepareTrustManager(InputStream... certificates) {
        if (certificates == null || certificates.length <= 0)
            return null;
        try {

            CertificateFactory certificateFactory = CertificateFactory.getInstance("X.509");
            KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());
            keyStore.load(null);
            int index = 0;
            for (InputStream certificate : certificates) {
                String certificateAlias = Integer.toString(index++);
                keyStore.setCertificateEntry(certificateAlias, certificateFactory.generateCertificate(certificate));
                try {
                    if (certificate != null)
                        certificate.close();
                } catch (IOException e)

                {
                }
            }
            TrustManagerFactory trustManagerFactory = null;

            trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
            trustManagerFactory.init(keyStore);

            TrustManager[] trustManagers = trustManagerFactory.getTrustManagers();

            return trustManagers;
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        } catch (CertificateException e) {
            e.printStackTrace();
        } catch (KeyStoreException e) {
            e.printStackTrace();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;

    }

    private static KeyManager[] prepareKeyManager(InputStream bksFile, String password) {
        try {
            if (bksFile == null || password == null)
                return null;

            KeyStore clientKeyStore = KeyStore.getInstance("BKS");
            clientKeyStore.load(bksFile, password.toCharArray());
            KeyManagerFactory keyManagerFactory = KeyManagerFactory
                    .getInstance(KeyManagerFactory.getDefaultAlgorithm());
            keyManagerFactory.init(clientKeyStore, password.toCharArray());
            return keyManagerFactory.getKeyManagers();

        } catch (KeyStoreException e) {
            e.printStackTrace();
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        } catch (UnrecoverableKeyException e) {
            e.printStackTrace();
        } catch (CertificateException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    private static X509TrustManager chooseTrustManager(TrustManager[] trustManagers) {
        for (TrustManager trustManager : trustManagers) {
            if (trustManager instanceof X509TrustManager) {
                return (X509TrustManager) trustManager;
            }
        }
        return null;
    }

    private static class MyTrustManager implements X509TrustManager {
        private X509TrustManager defaultTrustManager;
        private X509TrustManager localTrustManager;

        public MyTrustManager(X509TrustManager localTrustManager) throws NoSuchAlgorithmException, KeyStoreException {
            TrustManagerFactory var4 = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
            var4.init((KeyStore) null);
            defaultTrustManager = chooseTrustManager(var4.getTrustManagers());
            this.localTrustManager = localTrustManager;
        }

        @Override
        public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {

        }

        @Override
        public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
            try {
                defaultTrustManager.checkServerTrusted(chain, authType);
            } catch (CertificateException ce) {
                localTrustManager.checkServerTrusted(chain, authType);
            }
        }

        @Override
        public X509Certificate[] getAcceptedIssuers() {
            return new X509Certificate[0];
        }
    }


    public static SSLSocketFactory initSSLSocketFactory() {
        SSLContext sslContext = null;
        try {
            sslContext = SSLContext.getInstance("SSL");
            X509TrustManager[] xTrustArray = new X509TrustManager[]
                    {initTrustManager()};
            sslContext.init(null,
                    xTrustArray, new SecureRandom());
        } catch (Exception e) {
            e.printStackTrace();
        }
        return sslContext.getSocketFactory();
    }

    public static X509TrustManager initTrustManager() {
        X509TrustManager mTrustManager = new X509TrustManager() {
            @Override
            public X509Certificate[] getAcceptedIssuers() {
                return new X509Certificate[]{};
            }

            @Override
            public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
            }

            @Override
            public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
            }
        };
        return mTrustManager;
    }
}

【Step 6】使用

private void testQuest(){
        RequestParams requestParams=new RequestParams();
//requestParams.put()
        CommonOkHttpClient.sendRequest(CommonRequest.createPostRequest(Config.baseUrl+"",requestParams),
                new CommonJsonCallback(new DisposeDataHandle(new DisposeDataListener() {
                    @Override
                    public void onSuccess(Object responseObj) {
                        
                    }

                    @Override
                    public void onFailure(Object resonObj) {

                    }
                })));
    }

【android學習筆記】okHttp網絡請求代碼封裝

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