import org.apache.http.conn.routing.BasicRouteDirector; //导入依赖的package包/类
public MainClientExec(
        final HttpRequestExecutor requestExecutor,
        final HttpClientConnectionManager connManager,
        final ConnectionReuseStrategy reuseStrategy,
        final ConnectionKeepAliveStrategy keepAliveStrategy,
        final AuthenticationStrategy targetAuthStrategy,
        final AuthenticationStrategy proxyAuthStrategy,
        final UserTokenHandler userTokenHandler) {
    Args.notNull(requestExecutor, "HTTP request executor");
    Args.notNull(connManager, "Client connection manager");
    Args.notNull(reuseStrategy, "Connection reuse strategy");
    Args.notNull(keepAliveStrategy, "Connection keep alive strategy");
    Args.notNull(targetAuthStrategy, "Target authentication strategy");
    Args.notNull(proxyAuthStrategy, "Proxy authentication strategy");
    Args.notNull(userTokenHandler, "User token handler");
    this.authenticator      = new HttpAuthenticator();
    this.proxyHttpProcessor = new ImmutableHttpProcessor(
            new RequestTargetHostHC4(), new RequestClientConnControl());
    this.routeDirector      = new BasicRouteDirector();
    this.requestExecutor    = requestExecutor;
    this.connManager        = connManager;
    this.reuseStrategy      = reuseStrategy;
    this.keepAliveStrategy  = keepAliveStrategy;
    this.targetAuthStrategy = targetAuthStrategy;
    this.proxyAuthStrategy  = proxyAuthStrategy;
    this.userTokenHandler   = userTokenHandler;
}
 

import org.apache.http.conn.routing.BasicRouteDirector; //导入依赖的package包/类
/**
 * @since 4.4
 */
public MainClientExec(
        final HttpRequestExecutor requestExecutor,
        final HttpClientConnectionManager connManager,
        final ConnectionReuseStrategy reuseStrategy,
        final ConnectionKeepAliveStrategy keepAliveStrategy,
        final HttpProcessor proxyHttpProcessor,
        final AuthenticationStrategy targetAuthStrategy,
        final AuthenticationStrategy proxyAuthStrategy,
        final UserTokenHandler userTokenHandler) {
    Args.notNull(requestExecutor, "HTTP request executor");
    Args.notNull(connManager, "Client connection manager");
    Args.notNull(reuseStrategy, "Connection reuse strategy");
    Args.notNull(keepAliveStrategy, "Connection keep alive strategy");
    Args.notNull(proxyHttpProcessor, "Proxy HTTP processor");
    Args.notNull(targetAuthStrategy, "Target authentication strategy");
    Args.notNull(proxyAuthStrategy, "Proxy authentication strategy");
    Args.notNull(userTokenHandler, "User token handler");
    this.authenticator      = new HttpAuthenticator();
    this.routeDirector      = new BasicRouteDirector();
    this.requestExecutor    = requestExecutor;
    this.connManager        = connManager;
    this.reuseStrategy      = reuseStrategy;
    this.keepAliveStrategy  = keepAliveStrategy;
    this.proxyHttpProcessor = proxyHttpProcessor;
    this.targetAuthStrategy = targetAuthStrategy;
    this.proxyAuthStrategy  = proxyAuthStrategy;
    this.userTokenHandler   = userTokenHandler;
}