谷歌Volley网络框架讲解——网络枢纽

1. public static RequestQueue newRequestQueueInDisk(Context context, String dir, HttpStack stack) {
2. File cacheDir = new File(dir, DEFAULT_CACHE_DIR);
3. String userAgent = "volley/0";
4. try {
5. String packageName = context.getPackageName();
6. PackageInfo info = context.getPackageManager().getPackageInfo(packageName, 0);
7. userAgent = packageName + "/" + info.versionCode;
8. } catch (NameNotFoundException e) {
9. }
10. if (stack == null) {
11. //2.3及以上版本使用HurlStack来处理请求

1. if (Build.VERSION.SDK_INT >= 9) {
2. stack = new HurlStack();
3. } else {
4. // Prior to Gingerbread, HttpUrlConnection was unreliable.
5. // See: http://android-developers.blogspot.com/2011/09/androids-http-clients.html
6. stack = new HttpClientStack(AndroidHttpClient.newInstance(userAgent));
7. }
8. }
9. Network network = new BasicNetwork(stack);
10. RequestQueue queue = new RequestQueue(new DiskBasedCache(cacheDir), network);
11. queue.start();
12. return queue;
13. }

1. public HurlStack() {
2. this(null);
3. }
4. /**
5. * @param urlRewriter Rewriter to use for request URLs
6. */
7. public HurlStack(UrlRewriter urlRewriter) {
8. this(urlRewriter, null);
9. }
10. /**
11. * @param urlRewriter Rewriter to use for request URLs
12. * @param sslSocketFactory SSL factory to use for HTTPS connections
13. */
14. public HurlStack(UrlRewriter urlRewriter, SSLSocketFactory sslSocketFactory) {
15. mUrlRewriter = urlRewriter;
16. mSslSocketFactory = sslSocketFactory;
17. }

1. private HttpURLConnection openConnection(URL url, Request<?> request) throws IOException {
2. HttpURLConnection connection = createConnection(url);
3. int timeoutMs = request.getTimeoutMs();
4. connection.setConnectTimeout(timeoutMs);
5. connection.setReadTimeout(timeoutMs);
6. connection.setUseCaches(false);
7. connection.setDoInput(true);
8. <span style="color:#ff6600;"> </span>// use caller-provided custom SslSocketFactory, if any, for HTTPS
9. if ("https".equals(url.getProtocol()) && mSslSocketFactory != null) {
10. ((HttpsURLConnection)connection).setSSLSocketFactory(mSslSocketFactory);
11. }
12. return connection;
13. }

1. package com.android.volley.toolbox;
2. import java.security.KeyManagementException;
3. import java.security.NoSuchAlgorithmException;
4. import java.security.SecureRandom;
5. import java.security.cert.X509Certificate;
6. import javax.net.ssl.HostnameVerifier;
7. import javax.net.ssl.HttpsURLConnection;
8. import javax.net.ssl.SSLContext;
9. import javax.net.ssl.SSLSession;
10. import javax.net.ssl.TrustManager;
11. import javax.net.ssl.X509TrustManager;
12. public class HTTPSTrustManager implements X509TrustManager {
13. private static TrustManager[] trustManagers;
14. private static final X509Certificate[] _AcceptedIssuers = new X509Certificate[] {};
15. @Override
16. public void checkClientTrusted(
17. java.security.cert.X509Certificate[] x509Certificates, String s)
18. throws java.security.cert.CertificateException {
19. // To change body of implemented methods use File | Settings | File
20. // Templates.
21. }
22. @Override
23. public void checkServerTrusted(
24. java.security.cert.X509Certificate[] x509Certificates, String s)
25. throws java.security.cert.CertificateException {
26. // To change body of implemented methods use File | Settings | File
27. // Templates.
28. }
29. public boolean isClientTrusted(X509Certificate[] chain) {
30. return true;
31. }
32. public boolean isServerTrusted(X509Certificate[] chain) {
33. return true;
34. }
35. @Override
36. public X509Certificate[] getAcceptedIssuers() {
37. return _AcceptedIssuers;
38. }
39. public static void allowAllSSL() {
40. HttpsURLConnection.setDefaultHostnameVerifier(new HostnameVerifier() {
41. @Override
42. public boolean verify(String arg0, SSLSession arg1) {
43. // TODO Auto-generated method stub
44. return true;
45. }
46. });
47. SSLContext context = null;
48. if (trustManagers == null) {
49. trustManagers = new TrustManager[] { new HTTPSTrustManager() };
50. }
51. try {
52. context = SSLContext.getInstance("TLS");
53. context.init(null, trustManagers, new SecureRandom());
54. } catch (NoSuchAlgorithmException e) {
55. e.printStackTrace();
56. } catch (KeyManagementException e) {
57. e.printStackTrace();
58. }
59. HttpsURLConnection.setDefaultSSLSocketFactory(context
60. .getSocketFactory());
61. }
62. }

1. protected HttpURLConnection createConnection(URL url) throws IOException {
2. //如果请求是https请求那么就信任所有SSL

1. <span style="white-space:pre">  </span>if (url.toString().contains("https")) {
2. HTTPSTrustManager.allowAllSSL();
3. }
4. return (HttpURLConnection) url.openConnection();
5. }