开发手记--使用OkHttp忽略HTTPS验证

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这里是与Retrofit2结合使用，所以写了一个静态方法，方便Retrofit调用

记录代码：

public static OkHttpClient getClient() {        TrustManager[] trustManager = new TrustManager[]{                new X509TrustManager() {                    @Override                    public void checkClientTrusted(X509Certificate[] chain, String authType) throws                            CertificateException {                    }                    @Override                    public void checkServerTrusted(X509Certificate[] chain, String authType) throws                            CertificateException {                    }                    @Override                    public X509Certificate[] getAcceptedIssuers() {                        X509Certificate[] x509Certificates = new X509Certificate[0];                        return x509Certificates;                    }                }        };        OkHttpClient.Builder client = new OkHttpClient.Builder();    //设置log打印日志        HttpLoggingInterceptor interceptor=new HttpLoggingInterceptor(                new HttpLoggingInterceptor.Logger() {                    @Override                    public void log(String message) {                        Log.e("OkHTTP", message);                    }                }        );        interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);        try {            SSLContext sslContext = SSLContext.getInstance("SSL");            sslContext.init(null, trustManager, new SecureRandom());            SSLSocketFactory sslSocketFactory = sslContext.getSocketFactory();            client.addInterceptor(interceptor);            client.connectTimeout(DEFAULT_TIMEOUT, TimeUnit.SECONDS);            client.sslSocketFactory(sslSocketFactory);            client.hostnameVerifier(new HostnameVerifier() {                @Override                public boolean verify(String hostname, SSLSession session) {                    return true;                }            });        } catch (NoSuchAlgorithmException e) {            e.printStackTrace();        } catch (KeyManagementException e) {            e.printStackTrace();        }        return client.build();    }

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.xxxx.android/com.xxxxActivity}: java.lang.NullPointerException: Attempt to get length of null array

E/AndroidRuntime(9669): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2623)

E/AndroidRuntime(9669): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2687)

E/AndroidRuntime(9669): at android.app.ActivityThread.access$800(ActivityThread.java:177)

E/AndroidRuntime(9669): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1557)

E/AndroidRuntime(9669): at android.os.Handler.dispatchMessage(Handler.java:111)

E/AndroidRuntime(9669): at android.os.Looper.loop(Looper.java:199)

E/AndroidRuntime(9669): at android.app.ActivityThread.main(ActivityThread.java:5755)

E/AndroidRuntime(9669): at java.lang.reflect.Method.invoke(Native Method)

E/AndroidRuntime(9669): at java.lang.reflect.Method.invoke(Method.java:372)

E/AndroidRuntime(9669): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:982)

E/AndroidRuntime(9669): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:777)

报错是因为

                    @Override                    public X509Certificate[] getAcceptedIssuers() {                        X509Certificate[] x509Certificates = new X509Certificate[0];                        return x509Certificates;                    }

返回了 null

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