java - 将 Apache DefaultHttpClient 替换为 HttpClientBuilder 会导致“不支持 http 协议”异常
问题描述
我正在尝试替换以下已弃用(例如 Apache DefaultHttpClient、SSLSocketFactory 已弃用)代码:
public class HttpUtil {
public static DefaultHttpClient getDefaultHttpClient(IClientConfiguration configuration,
ExternalAPILogger logger) {
DefaultHttpClient client = new DefaultHttpClient();
if(configuration.isIgnoreSSLCertificate()) {
try {
SSLContext context = SSLContext.getInstance("TLS");
X509TrustManager trustManager = new X509TrustManager() {
public void checkClientTrusted(X509Certificate[] x509Certificates, String s) throws CertificateException {
}
public void checkServerTrusted(X509Certificate[] x509Certificates, String s) throws CertificateException {
}
public X509Certificate[] getAcceptedIssuers() {
return null;
}
};
context.init(null, new TrustManager[]{trustManager}, null);
SSLSocketFactory sslSocketFactory = new SSLSocketFactory(context);
sslSocketFactory.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
ClientConnectionManager connectionManager = client.getConnectionManager();
SchemeRegistry schemeRegistry = connectionManager.getSchemeRegistry();
schemeRegistry.register(new Scheme("https", sslSocketFactory, 443));
client = new DefaultHttpClient(connectionManager, client.getParams());
} catch (NoSuchAlgorithmException e) {
logger.log(HttpUtil.class.getName(), "TLS not available", e, ExternalAPILogger.DEBUG);
} catch(KeyManagementException e) {
logger.log(HttpUtil.class, "ssl context init failed", e, ExternalAPILogger.DEBUG);
}
}
if(configuration.isUseProxy()) {
HttpHost proxy = new HttpHost(configuration.getProxyHost(),
configuration.getProxyPort());
ConnRouteParams.setDefaultProxy(client.getParams(), proxy);
}
client.getParams().setParameter(CoreConnectionPNames.SO_TIMEOUT, 60 * 1000);
client.getParams().setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT, 60 * 1000);
return client;
}
}
通过这个新代码:
public static HttpClient getHttpClient(IClientConfiguration configuration,
ExternalAPILogger logger) {
HttpClientBuilder clientBuilder = HttpClientBuilder.create();
// clientBuilder.useSystemProperties();
if (configuration.isIgnoreSSLCertificate()) {
try {
SSLContext context = SSLContext.getInstance("TLS");
X509TrustManager trustManager = new X509TrustManager() {
public void checkClientTrusted(X509Certificate[] x509Certificates, String s)
throws CertificateException {
}
public void checkServerTrusted(X509Certificate[] x509Certificates, String s)
throws CertificateException {
}
public X509Certificate[] getAcceptedIssuers() {
return null;
}
};
context.init(null, new TrustManager[] { trustManager }, null);
// clientBuilder.setSSLContext(context);
// clientBuilder.setSSLHostnameVerifier(NoopHostnameVerifier.INSTANCE);
SSLConnectionSocketFactory sslSocketFactory =
new SSLConnectionSocketFactory(context, NoopHostnameVerifier.INSTANCE);
clientBuilder.setSSLSocketFactory(sslSocketFactory);
Registry<ConnectionSocketFactory> schemeRegistry = RegistryBuilder.<ConnectionSocketFactory>create()
.register("https", sslSocketFactory).build();
HttpClientConnectionManager httpClientConnectionManager =
new BasicHttpClientConnectionManager(schemeRegistry);
clientBuilder.setConnectionManager(httpClientConnectionManager);
} catch (NoSuchAlgorithmException e) {
logger.log(HttpUtil.class.getName(), "TLS not available", e, ExternalAPILogger.DEBUG);
} catch (KeyManagementException e) {
logger.log(HttpUtil.class, "ssl context init failed", e, ExternalAPILogger.DEBUG);
}
}
RequestConfig.Builder requestConfigBuilder = RequestConfig.custom();
if (configuration.isUseProxy()) {
HttpHost proxy = new HttpHost(
configuration.getProxyHost(),
configuration.getProxyPort());
// clientBuilder
// .setRoutePlanner(new DefaultProxyRoutePlanner(proxy))
// .setProxy(proxy)
// .setProxyAuthenticationStrategy(new ProxyAuthenticationStrategy());
requestConfigBuilder.setProxy(proxy);
}
requestConfigBuilder
.setConnectTimeout(60 * 1000)
.setSocketTimeout(60 * 1000);
clientBuilder.setDefaultRequestConfig(requestConfigBuilder.build());
// SocketConfig.Builder socketConfig = SocketConfig.custom();
// socketConfig.setSoTimeout(60 * 1000);
// clientBuilder.setDefaultSocketConfig(socketConfig.build());
return clientBuilder.build();
}
但我无法使用 http 代理运行代码。我收到以下错误消息。:
Caused by: org.apache.http.conn.UnsupportedSchemeException: http protocol is not supported
解决方案
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