OPPO R9s 沒法加載https的圖片

OPPO手機

OPPO 手機Android6.0系統 Glide 4.0+ 版本 加載HTTPS的圖片顯示空白java

圖片顯示空白

圖片是保存在阿里雲服務上,因此圖片提供的地址都是https://開頭的。整個測試過程一切正常,也準備發版本。忽然在OPPO手機上,圖片不顯示,空白一片。趕忙鏈接上手機進行DEBUG,能夠看到一堆錯誤。有錯誤信息就好處理了。錯誤提示以下: android

證書錯誤

javax.net.ssl.SSLHandshakeException: java.security.cert.CertPathValidatorException: Trust anchor for certification path not found.
        at com.android.org.conscrypt.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:328)
        at com.android.okhttp.internal.http.SocketConnector.connectTls(SocketConnector.java:103)
        at com.android.okhttp.Connection.connect(Connection.java:143)
        ...
        at aoo.run(SourceFile:446)
     Caused by: java.security.cert.CertificateException: java.security.cert.CertPathValidatorException: Trust anchor for certification path not found.
        at com.android.org.conscrypt.TrustManagerImpl.checkTrusted(TrustManagerImpl.java:324)
        at com.android.org.conscrypt.TrustManagerImpl.checkServerTrusted(TrustManagerImpl.java:225)
        ...
com.android.okhttp.internal.huc.DelegatingHttpsURLConnection.connect(DelegatingHttpsURLConnection.java:89) 
        at com.android.okhttp.internal.huc.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:25) 
        at alm.a(SourceFile:104) 
        ...
        at java.lang.Thread.run(Thread.java:818) 
        at aoo.run(SourceFile:446) 
     Caused by: java.security.cert.CertPathValidatorException: Trust anchor for certification path not found.
        at com.android.org.conscrypt.TrustManagerImpl.checkTrusted(TrustManagerImpl.java:324) 
        at 
...
com.android.okhttp.internal.huc.DelegatingHttpsURLConnection.connect(DelegatingHttpsURLConnection.java:89) 
        at com.android.okhttp.internal.huc.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:25) 
...
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
        at java.lang.Thread.run(Thread.java:818) 
        at aoo.run(SourceFile:446) 
複製代碼

而後進行google錯誤信息「Trust anchor for certification path not found.」,可以搜到的答案就是讓你設置自定義證書。可我並不想設置證書。 再看時間都是2016年或2017年的,使用glide還在2.0+時代,將哪些解決方法用到工程裏,都是報錯的。git

解決

1. 添加第三方庫

api "com.github.bumptech.glide:okhttp3-integration:4.7.1"
annotationProcessor 'com.github.bumptech.glide:compiler:4.7.1'
複製代碼

我使用的glide 4.7.1版本,全部添加這對應的版本也是4.7.1. 其中添加com.github.bumptech.glide:compiler是由於,不添加就會報錯誤github

Failed to find GeneratedAppGlideModule. You should include an annotationProcessor compile dependency on com.github.bumptech.glide:compiler in your application and a @GlideModule annotated AppGlideModule implementation or LibraryGlideModules will be silently ignored
複製代碼

記得同步項目下。api

2. 添加OkHttpAppGlideModule類

類的內容:緩存

import android.content.Context;

import com.bumptech.glide.Registry;
import com.bumptech.glide.annotation.GlideModule;
import com.bumptech.glide.integration.okhttp3.OkHttpUrlLoader;
import com.bumptech.glide.load.model.GlideUrl;
import com.bumptech.glide.module.AppGlideModule;

import java.io.InputStream;

import okhttp3.OkHttpClient;

@GlideModule
public class OkHttpAppGlideModule extends AppGlideModule {

    public void registerComponents(Context context, Registry registry) {
        OkHttpClient client = UnsafeOkHttpClient.getUnsafeOkHttpClient();
        registry.replace(GlideUrl.class, InputStream.class, new OkHttpUrlLoader.Factory(client));
    }
}

複製代碼

3.添加UnsafeOkHttpClient類

類的內容:bash

import java.security.cert.CertificateException;
import java.util.concurrent.TimeUnit;

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;

import okhttp3.OkHttpClient;

public class UnsafeOkHttpClient {

    public static OkHttpClient getUnsafeOkHttpClient() {
        try {
            // Create a trust manager that does not validate certificate chains
            final TrustManager[] trustAllCerts = new TrustManager[]{
                    new X509TrustManager() {
                        @Override
                        public void checkClientTrusted(java.security.cert.X509Certificate[] chain, String authType) throws CertificateException {
                        }

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

                        @Override
                        public java.security.cert.X509Certificate[] getAcceptedIssuers() {
                            return new java.security.cert.X509Certificate[]{};
                        }
                    }
            };

            // Install the all-trusting trust manager
            final SSLContext sslContext = SSLContext.getInstance("SSL");
            sslContext.init(null, trustAllCerts, new java.security.SecureRandom());

            // Create an ssl socket factory with our all-trusting manager
            final SSLSocketFactory sslSocketFactory = sslContext.getSocketFactory();

            OkHttpClient.Builder builder = new OkHttpClient.Builder();
            builder.sslSocketFactory(sslSocketFactory, (X509TrustManager) trustAllCerts[0]);
            builder.hostnameVerifier(new HostnameVerifier() {
                @Override
                public boolean verify(String hostname, SSLSession session) {
                    return true;
                }
            });

            builder.connectTimeout(20, TimeUnit.SECONDS);
            builder.readTimeout(20,TimeUnit.SECONDS);

            OkHttpClient okHttpClient = builder.build();
            return okHttpClient;
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
}

複製代碼

4. 申明GlideMudle

在AndroidManifest.xml中添加申明:session

<meta-data
            android:name="com.****.OkHttpAppGlideModule"
            android:value="AppGlideModule" />

複製代碼

其中的路徑須要修改成本身項目的路徑。app

成功

再次運行時,成功顯示圖片。dom

小插曲

1. 圖片的緩存問題。

當把圖片的https://路徑修改成http://進行訪問成功,再次進行https://路徑訪問,盡然成功顯示了。一開始覺得是問題解決了,可是當手機重啓後,https://路徑仍是沒法顯示圖片

2. 一直是失敗,顯示圖片空白。

可在添加了一次重複的混淆-keep public class * implements com.bumptech.glide.module.GlideModule. 盡然能夠了。 而後把這個混淆刪除後,也是成功的。 那麼緣由只能是:glide的緩存問題。當屢次訪問同一個https://失敗後,glide將此https://路徑設置爲無效路徑,再次進行訪問時直接就顯示失敗了。而後修改了下混淆,glide又進行訪問了。(做者的猜想,沒有進行源碼閱讀,有不對的地方請指正。)

參考文章: blog.csdn.net/u010232308/…

// END 2018-6-8 小小的開心吧

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