Android Okhttp實現注冊登錄等功能，使用https

先記錄下大概流程

1、使用Okhttp發送post請求到服務端完成注冊登錄

2、添加https，實現https請求

3、遇到的問題：post請求多次發送造成后端數據不在同一session，解決：OkHttpClient創建時，傳入這個CookieJar的實現，就能完成對Cookie的自動管理

     下面是 RequestManager 類代碼：

package com.okhttpclient;

import android.content.Context;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.widget.Toast;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.security.KeyStore;
import java.security.SecureRandom;
import java.security.cert.Certificate;
import java.security.cert.CertificateFactory;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.concurrent.TimeUnit;

import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManagerFactory;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.Cookie;
import okhttp3.CookieJar;
import okhttp3.FormBody;
import okhttp3.HttpUrl;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;

import static com.okhttpclient.MainActivity.handler;

/**
 * Created by seceinfofs on 2016/11/28.
 */

public class RequestManager {

    public static final String BASE_URL = "http://192.168.1.200/RayvanWebAuth.php";//根地址

    public static final String REGISTER_URL = "register";//注冊地址
    public static final String LOGIN_URL = "login";//登錄地址
    public static final String LOGOUT_URL = "logout";//退出地址
    public static final String AUTHCODE = "getAuthCode";//獲取驗證碼


    private static volatile RequestManager mInstance;//單利引用
    private OkHttpClient mOkHttpClient;//okHttpClient 實例
    public Handler okHttpHandler;//全局處理子線程和M主線程通信
    private Context context;


    /**
     * 初始化RequestManager
     */
    public RequestManager(Context context) {


        //初始化OkHttpClient
        mOkHttpClient = new OkHttpClient().newBuilder()
                .connectTimeout(10, TimeUnit.SECONDS)//設置超時時間
                .readTimeout(10, TimeUnit.SECONDS)//設置讀取超時時間
                .writeTimeout(10, TimeUnit.SECONDS)//設置寫入超時時間
                .cookieJar(new CookieJar() {//OkHttpClient創建時，傳入這個CookieJar的實現，就能完成對Cookie的自動管理
                private final HashMap<HttpUrl, List<Cookie>> cookieStore = new HashMap<>();
                    @Override
                    public void saveFromResponse(HttpUrl url, List<Cookie> cookies) {
                        cookieStore.put(url, cookies);
                    }

                    @Override
                    public List<Cookie> loadForRequest(HttpUrl url) {
                        List<Cookie> cookies = cookieStore.get(url);
                        return cookies != null ? cookies : new ArrayList<Cookie>();
                    }
                })
                .sslSocketFactory(getSSLSocketFactory(context, "cert.pem"))//添加https
                .build();

        //初始化Handler
        okHttpHandler = new Handler(context.getMainLooper());
        this.context = context;
    }

    /**
     * 獲取單例引用
     */

    public static RequestManager getInstance(Context context) {
        RequestManager inst = mInstance;
        if (inst == null) {
            synchronized (RequestManager.class) {
                inst = mInstance;
                if (inst == null) {
                    inst = new RequestManager(context.getApplicationContext());
                    mInstance = inst;
                }
            }
        }
        return inst;
    }



//實現https的類
private static SSLSocketFactory getSSLSocketFactory(Context context,String name) {

        if (context == null) {
            throw new NullPointerException("context == null");
        }

        //CertificateFactory用來證書生成
        CertificateFactory certificateFactory;
        InputStream inputStream = null;
        Certificate certificate;

        try {
            inputStream = context.getResources().getAssets().open(name);
        } catch (IOException e) {
            e.printStackTrace();
        }
        try {

            certificateFactory = CertificateFactory.getInstance("X.509");
            certificate = certificateFactory.generateCertificate(inputStream);

            //Create a KeyStore containing our trusted CAs
            KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());
            keyStore.load(null, null);
            keyStore.setCertificateEntry(name,certificate);

            //Create a TrustManager that trusts the CAs in our keyStore
            TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
            trustManagerFactory.init(keyStore);

            //Create an SSLContext that uses our TrustManager
            SSLContext sslContext = SSLContext.getInstance("TLS");
            sslContext.init(null, trustManagerFactory.getTrustManagers(), new SecureRandom());
            return sslContext.getSocketFactory();

        } catch (Exception e) {

        }
        return null;
    }

    /**
     * 同步Post請求
     * @param action
     * @param name
     * @param password
     */

    public int requestPostBySyn(String action,String name,String password,String authCode) {
        int rc = -1;
        final String requestUrl = String.format("%s", BASE_URL);

        RequestBody formBody = null;
        if(action.equals(AUTHCODE)){
            formBody = new FormBody.Builder()
                    .add("action",action)
                    .add("sendNumber", name)
                    .build();

        } else if(action.equals(REGISTER_URL)){
            formBody = new FormBody.Builder()
                    .add("action",action)
                    .add("username", name)
                    .add("password", password)
                    .add("authCode",authCode)
                    .build();
        }else if(action.equals(LOGIN_URL)){
            password = SHA256.Encrypt(password, "");
            formBody = new FormBody.Builder()
                    .add("action",action)
                    .add("username", name)
                    .add("password", password)
                    .build();
        }else if(action.equals(LOGOUT_URL)){
            formBody = new FormBody.Builder()
                    .add("action",action)
                    .add("uuid", name)
                    .add("token", password)
                    .build();
        }

         final Request request = new Request.Builder()
                 .url(requestUrl).post(formBody).build();

         Call call = mOkHttpClient.newCall(request);

        try {
            final Response response = call.execute();
            final String result =  response.body().string();

            postToMianThread(result);
            rc = 0;
        } catch (IOException e) {
            postToMianThread(null);
            e.printStackTrace();
            rc = -1;
        }
        return rc;
    }

    /**
     * 異步Post請求
     * @param action
     * @param name
     * @param password
     */

    public void requestPostByAsyn(final String action, String name, String password, String authCode) {

        final String requestUrl = String.format("%s", BASE_URL);
        RequestBody formBody = null;
        if(action.equals(AUTHCODE)){
            formBody = new FormBody.Builder()
                    .add("action",action)
                    .add("sendNumber", name)
                    .build();

        } else if(action.equals(REGISTER_URL)){
            formBody = new FormBody.Builder()
                    .add("action",action)
                    .add("username", name)
                    .add("password", password)
                    .add("authCode",authCode)
                    .build();
        }else if(action.equals(LOGIN_URL)){
            password = SHA256.Encrypt(password, "");
            formBody = new FormBody.Builder()
                    .add("action",action)
                    .add("username", name)
                    .add("password", password)
                    .build();
        }else if(action.equals(LOGOUT_URL)){
            formBody = new FormBody.Builder()
                    .add("action",action)
                    .add("uuid", name)
                    .add("token", password)
                    .build();
        }

        final Request request = new Request.Builder().url(requestUrl).post(formBody).build();

        Call call = mOkHttpClient.newCall(request);
        call.enqueue(new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {
                postToMianThread(null);
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                final String res = response.body().string();
                if(action.equals(LOGIN_URL)){
                    Message message  =new Message();
                    Bundle bundle = new Bundle();
                    bundle.putString("key",res);
                    message.setData(bundle);
                    handler.sendMessage(message);
                    postToMianThread(res);
                }
            }
        });
    }

    /**
     * 請求響應
     * @param result
     */
    private void postToMianThread(final String result){
        okHttpHandler.post(new Runnable() {
            @Override
            public void run() {
                if(result!=null){
                    Toast.makeText(context, "..."+result, Toast.LENGTH_LONG).show();
                }else {
                    Toast.makeText(context, "..."+"Fail", Toast.LENGTH_LONG).show();
                }
            }
        });
    }

}


參考文檔地址：
1、http://www.cnblogs.com/whoislcj/p/5526431.html
2、http://blog.csdn.net/lmj623565791/article/details/48129405
3、http://www.jianshu.com/p/1fdbcfcc962c
4、http://blog.csdn.net/dd864140130/article/details/52625666
5、http://www.open-open.com/lib/view/open1453422314105.html
6、http://www.cnblogs.com/LittleHann/p/3741907.html



Ps：這是第一次在網上寫東西，主要是為了記錄下來 以后忘了回頭看的時候方便 一會把demo上傳到網上