org.apache.http.conn

## Interface HttpClientConnectionOperator

- 所有已知实现类：
    DefaultHttpClientConnectionOperator

      public interface HttpClientConnectionOperator

  执行连接连接和升级操作的连接运算符。 通常情况下，参与这些业务组件的注册表`ConnectionSocketFactory` ， `SchemePortResolver`和`DnsResolver` 。 一般来说，HTTP客户端用户不应该提供该接口的实现，因为HttpClient将使用默认的覆盖大多数用户所需的大多数情况。
  从以下版本开始：
    4.4

- - ### 方法摘要

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `connect(ManagedHttpClientConnection conn, HttpHost host, InetSocketAddress localAddress, int connectTimeout, SocketConfig socketConfig, HttpContext context)`
    `void` | `upgrade(ManagedHttpClientConnection conn, HttpHost host, HttpContext context)`

- - ### 方法详细信息

    - #### connect

          void connect(ManagedHttpClientConnection conn,
                     HttpHost host,
                     InetSocketAddress localAddress,
                     int connectTimeout,
                     SocketConfig socketConfig,
                     HttpContext context)
                       throws IOException

      异常
        `IOException`

    - #### upgrade

          void upgrade(ManagedHttpClientConnection conn,
                     HttpHost host,
                     HttpContext context)
                       throws IOException

      异常
        `IOException`

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