apache-httpclient-4.x - HttpClient 4.3.5的ConnectionRequestTimeOut与4.0.1中的HttpConnectionParams.setConnectionTimeout的ConnectTimeout

Question

我正在尝试将HttpClient依赖关系从4.0.1升级到4.3.5。并且对在新库中设置连接超时感到困惑。对于以下代码：

HttpClient httpClient = new DefaultHttpClient();
HttpConnectionParams.setConnectionTimeout(httpClient.getParams(), 300);

它将替换为以下代码：

RequestConfig config = RequestConfig.custom().setConnectTimeout(300).build();
HttpClient httpClient = HttpClientBuilder.create().setDefaultRequestConfig(config).build();

但是，由于我不熟悉HttpClient，因此不确定是否应该使用setConnectTimeout或setConnectionRequestTimeout。在我看来，我应该基于源代码中的Java doc使用setConnectionTimeout。有人可以确认吗？提前致谢。

https://svn.apache.org/repos/asf/httpcomponents/httpclient/tags/4.3.3/httpclient/src/main/java/org/apache/http/client/config/RequestConfig.java

/**
 * Returns the timeout in milliseconds used when requesting a connection
 * from the connection manager. A timeout value of zero is interpreted
 * as an infinite timeout.
 * <p/>
 * A timeout value of zero is interpreted as an infinite timeout.
 * A negative value is interpreted as undefined (system default).
 * <p/>
 * Default: <code>-1</code>
 */
public int getConnectionRequestTimeout() {
    return connectionRequestTimeout;
}

/**
 * Determines the timeout in milliseconds until a connection is established.
 * A timeout value of zero is interpreted as an infinite timeout.
 * <p/>
 * A timeout value of zero is interpreted as an infinite timeout.
 * A negative value is interpreted as undefined (system default).
 * <p/>
 * Default: <code>-1</code>
 */
public int getConnectTimeout() {
    return connectTimeout;
}

Answer 1

在Apache Http Client的4.3版中，重新配置了配置。
新方法如下代码：

RequestConfig requestConfig =RequestConfig.custom()
.setConnectTimeout(connectTimeout)
.setConnectionRequestTimeout(connectionRequestTimeout)
.setSocketTimeout(socketTimeout).build();

connectTimeout是与服务器建立连接之前的超时。从连接管理器请求连接时使用 connectionRequestTimeout。