平時我們使用Glide加載http網址的圖片的時候，圖片可以正常加載出來，但是如果服務器端加上了安全認證，當加載自簽名的https圖片的時候就會報如下錯誤（證書路徑驗證異常）。

我們如果不修改Glide的代碼的話，是會出現

javax.net.ssl.SSLHandshakeException: java.security.cert.CertPathValidatorException: Trust anchor for certification path not found.這個異常，導致圖片加載不出來。

okhttp我們使用ssl來信任的所有證書，但是glide使用的自己的網絡請求來加載的圖片，也就是說，想要用glide訪問https圖片，就必須替換掉glide原始加載圖片的方法，使其同樣做到信任所有證書。

所以需要修改Glide的OkHttpGlideModule.class OkHttpStreamFetcher.class OkHttpUrlLoader.class這三個類，

OkHttpGlideModule.java

package com.example.androidtest.https;
import android.content.Context;

import com.bumptech.glide.Glide;
import com.bumptech.glide.GlideBuilder;
import com.bumptech.glide.load.model.GlideUrl;
import com.bumptech.glide.module.GlideModule;
import com.example.androidtest.SSLSocketClient;

import java.io.InputStream;

import okhttp3.OkHttpClient;

public class OkHttpGlideModule implements GlideModule {
@Override
public void applyOptions(Context context, GlideBuilder builder) {
}

@Override
public void registerComponents(Context context, Glide glide) {
OkHttpClient mHttpClient = new OkHttpClient().newBuilder()
.sslSocketFactory(SSLSocketClient.getSSLSocketFactory())
.hostnameVerifier(SSLSocketClient.getHostnameVerifier())
.build();
glide.register(GlideUrl.class, InputStream.class, new OkHttpUrlLoader.Factory(mHttpClient));
}
}

OkHttpStreamFetcher.java

/**
* <p>Title: OkHttpStreamFetcher.java</p>
* <p>Description: </p>
* <p>Copyright: Copyright (c) 2017</p>
* <p>Company: www.baidudu.com</p>
* @author tsj
* @date 2018 10 18
* @version 1.0
*/
package com.example.androidtest.https;

/**
* <p>Title: OkHttpStreamFetcher</p>
* <p>Description: </p>
* @author tsj
* @date 2018 10 18
*/
import com.bumptech.glide.Priority;
import com.bumptech.glide.load.data.DataFetcher;
import com.bumptech.glide.load.model.GlideUrl;
import com.bumptech.glide.util.ContentLengthInputStream;

import java.io.IOException;
import java.io.InputStream;
import java.util.Map;

import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;
import okhttp3.ResponseBody;

public class OkHttpStreamFetcher implements DataFetcher<InputStream> {
private final OkHttpClient client;
private final GlideUrl url;
private InputStream stream;
private ResponseBody responseBody;

public OkHttpStreamFetcher(OkHttpClient client, GlideUrl url) {
this.client = client;
this.url = url;
}

@Override
public InputStream loadData(Priority priority) throws Exception {
Request.Builder requestBuilder = new Request.Builder()
.url(url.toStringUrl());

for (Map.Entry<String, String> headerEntry : url.getHeaders().entrySet()) {
String key = headerEntry.getKey();
requestBuilder.addHeader(key, headerEntry.getValue());
}

Request request = requestBuilder.build();

Response response = client.newCall(request).execute();
responseBody = response.body();
if (!response.isSuccessful()) {
throw new IOException("Request failed with code: " + response.code());
}

long contentLength = responseBody.contentLength();
stream = ContentLengthInputStream.obtain(responseBody.byteStream(), contentLength);
return stream;
}

@Override
public void cleanup() {
if (stream != null) {
try {
stream.close();
} catch (IOException e) {
}
}
if (responseBody != null) {
responseBody.close();
}
}

@Override
public String getId() {
return url.getCacheKey();
}

@Override
public void cancel() {
}
}

OkHttpUrlLoader.java

/**
* <p>Title: OkHttpUrlLoader.java</p>
* <p>Description: </p>
* <p>Copyright: Copyright (c) 2017</p>
* <p>Company: www.baidudu.com</p>
* @author tsj
* @date 2018 10 18
* @version 1.0
*/
package com.example.androidtest.https;

import android.content.Context;

import com.bumptech.glide.load.data.DataFetcher;
import com.bumptech.glide.load.model.GenericLoaderFactory;
import com.bumptech.glide.load.model.GlideUrl;
import com.bumptech.glide.load.model.ModelLoader;
import com.bumptech.glide.load.model.ModelLoaderFactory;

import java.io.InputStream;

import okhttp3.OkHttpClient;

public class OkHttpUrlLoader implements ModelLoader<GlideUrl, InputStream> {

public static class Factory implements ModelLoaderFactory<GlideUrl, InputStream> {
private static volatile OkHttpClient internalClient;
private OkHttpClient client;

private static OkHttpClient getInternalClient() {
if (internalClient == null) {
synchronized (Factory.class) {
if (internalClient == null) {
internalClient = new OkHttpClient();
}
}
}
return internalClient;
}

public Factory() {
this(getInternalClient());
}

public Factory(OkHttpClient client) {
this.client = client;
}

@Override
public ModelLoader<GlideUrl, InputStream> build(Context context, GenericLoaderFactory factories) {
return new OkHttpUrlLoader(client);
}

@Override
public void teardown() {
}
}

private final OkHttpClient client;

public OkHttpUrlLoader(OkHttpClient client) {
this.client = client;
}

@Override
public DataFetcher<InputStream> getResourceFetcher(GlideUrl model, int width, int height) {
return new OkHttpStreamFetcher(client, model);
}
}

還有一個是okhttp信任證書。

SSLSocketClient.java

/**
* <p>Title: SSLSocketClient.java</p>
* <p>Description: </p>
* <p>Copyright: Copyright (c) 2017</p>
* <p>Company: www.baidudu.com</p>
* @author tsj
* @date 2018 10 18
* @version 1.0
*/
package com.example.androidtest;

import java.security.SecureRandom;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

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 android.util.Log;

/**
* <p>Title: SSLSocketClient</p>
* <p>Description: </p>
* @author tsj
* @date 2018 10 18
*/

public class SSLSocketClient {

//獲取這個SSLSocketFactory
public static SSLSocketFactory getSSLSocketFactory() {
try {
SSLContext sslContext = SSLContext.getInstance("SSL");
sslContext.init(null, getTrustManager(), new SecureRandom());
return sslContext.getSocketFactory();
} catch (Exception e) {
throw new RuntimeException(e);
}
}

//獲取TrustManager
private static TrustManager[] getTrustManager() {
TrustManager[] trustAllCerts = new TrustManager[]{
new X509TrustManager() {

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

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

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

//獲取HostnameVerifier
public static HostnameVerifier getHostnameVerifier() {
HostnameVerifier hostnameVerifier = new HostnameVerifier() {
@Override
public boolean verify(String hostname, SSLSession session) {
// TODO Auto-generated method stub
return true;
}
};
return hostnameVerifier;
}
}

在AndroidManifest.xml裏面配置

<meta-data
android:name="com.example.androidtest.https.OkHttpGlideModule"
android:value="GlideModule" />

然後Activity是這樣調用的

package com.example.androidtest;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;

import com.bumptech.glide.Glide;

public class MainActivity extends Activity {

private ImageView imageView;
private Button mButton;
private String url="https://image.baidu.com/search/detail?ct=503316480&z=0&ipn=d&word=%E7%99%BE%E5%BA%A6%E5%9B%BE%E7%89%87&step_word=&hs=0&pn=5&spn=0&di=94952282390&pi=0&rn=1&tn=baiduimagedetail&is=0%2C0&istype=0&ie=utf-8&oe=utf-8&in=&cl=2&lm=-1&st=undefined&cs=99355280%2C609648180&os=1002106675%2C4110592367&simid=2009090768%2C841445828&adpicid=0&lpn=0&ln=1902&fr=&fmq=1539876892817_R&fm=&ic=undefined&s=undefined&se=&sme=&tab=0&width=undefined&height=undefined&face=undefined&ist=&jit=&cg=&bdtype=13&oriquery=&objurl=http%3A%2F%2Fimgsrc.baidu.com%2Fimgad%2Fpic%2Fitem%2Fd01373f082025aaf5d53a7e3f0edab64034f1ab1.jpg&fromurl=ippr_z2C%24qAzdH3FAzdH3Frwtxtg_z%26e3Bv54AzdH3Fri5p5v5ry6t2ipAzdH3F8nl9cmma9&gsm=0&rpstart=0&rpnum=0&islist=&querylist=";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
imageView = (ImageView) findViewById(R.id.image);
mButton = (Button) findViewById(R.id.button);
mButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Glide.with(getApplicationContext()).load(url)
.placeholder(R.drawable.ic_launcher)
.error(R.drawable.ic_launcher)
.into(imageView);
}
});

}

}

這裏的url是測試用的，建議將url換成你們自己的。

最後附上一張圖片

參考文章：https://blog.csdn.net/u014752325/article/details/73217577

　　　　　https://blog.csdn.net/u014752325/article/details/73185351

Android使用Glide加載https鏈接的圖片不顯示的原因