源码地址:https://github.com/apache/httpcomponents-client
版本:tag rel/v4.5.3
备注: 以下类的常量未改包名(老third包中也没有改) com.fr.third.org.apache.http.impl.client.DefaultHttpClient com.fr.third.org.apache.http.impl.conn.DefaultClientConnection com.fr.third.org.apache.http.impl.conn.ManagedHttpClientConnectionFactory com.fr.third.org.apache.http.impl.execchain.MinimalClientExec com.fr.third.org.apache.http.impl.client.HttpClientBuilder