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Added in API level 1
Deprecated since API level 22

Summary: Methods | [Expand All]

SocketFactory

public interface SocketFactory

org.apache.http.conn.scheme.SocketFactory

Known Indirect Subclasses

LayeredSocketFactory, SSLSocketFactory

该接口在API级别22中已被弃用。
请改用openConnection() 。请访问this webpage了解更多详情。

一个用于创建和连接套接字的工厂。工厂封装了建立套接字连接的逻辑。
对于某些连接管理器的正确操作，必须重写Object.equals()和Object.hashCode() 。

Summary

Public methods
`abstract Socket`	`connectSocket(Socket sock, String host, int port, InetAddress localAddress, int localPort, HttpParams params)` 将套接字连接到给定的主机。
`abstract Socket`	`createSocket()` 创建一个新的未连接的套接字。
`abstract boolean`	`isSecure(Socket sock)` 检查套接字是否提供安全连接。

Public methods

connectSocket

Added in API level 1

Socket connectSocket (Socket sock, 
                String host, 
                int port, 
                InetAddress localAddress, 
                int localPort, 
                HttpParams params)

将套接字连接到给定的主机。

Parameters
`sock`	`Socket`: the socket to connect, as obtained from `createSocket`. `null` indicates that a new socket should be created and connected.
`host`	`String`: the host to connect to
`port`	`int`: the port to connect to on the host
`localAddress`	`InetAddress`: the local address to bind the socket to, or `null` for any
`localPort`	`int`: the port on the local machine, 0 or a negative number for any
`params`	`HttpParams`: additional `parameters` for connecting

Returns
`Socket`	the connected socket. The returned object may be different from the `sock` argument if this factory supports a layered protocol.

Throws
`IOException`	if an I/O error occurs
`UnknownHostException`	if the IP address of the target host can not be determined
`ConnectTimeoutException`	if the socket cannot be connected within the time limit defined in the `params`

createSocket

Added in API level 1

Socket createSocket ()

创建一个新的未连接的套接字。随后应该将该套接字传递给connectSocket 。

Returns
`Socket`	a new socket

Throws
`IOException`	if an I/O error occurs while creating the socket

isSecure

Added in API level 1

boolean isSecure (Socket sock)

检查套接字是否提供安全连接。该工厂的插座必须是connected 。该工厂不会执行此方法的I / O操作。
根据经验，普通套接字不安全，TLS / SSL套接字是安全的。但是，可能存在应用程序特定的偏差。例如，在同一个Intranet（“信任区域”）中的主机的简单套接字可以被认为是安全的。另一方面，基于为连接选择的密码套件，TLS / SSL套接字可能被认为是不安全的。

Parameters
`sock`	`Socket`: the connected socket to check

Returns
`boolean`	`true` if the connection of the socket should be considered secure, or `false` if it should not

Throws
`IllegalArgumentException`	if the argument is invalid, for example because it is not a connected socket or was created by a different socket factory. Note that socket factories are not required to check these conditions, they may simply return a default value when called with an invalid socket argument.