HTTP参数CONNETCTION_TIMEOUT和SO_TIMEOUT区别

在开发中经常碰到这两个参数，但是之前对它们的真正含义一直比较模糊，今天通过调试程序并且结合官方文档，了解了两者的含义与区别。

参数的定义直接去看官方的文档(httpcore-4.3)

org.apache.http.params.CoreConnectionPNames.CONNECTION_TIMEOUT

Determines the timeout in milliseconds until a connection is established. A timeout value of zero is interpreted as
an infinite timeout.Please note this parameter can only be applied to connections that are bound to a particular 
local address.This parameter expects a value of type java.lang.Integer.

public static final String CONNECTION_TIMEOUT = "http.connection.timeout";

这个参数设定的是HTTP连接的超时时间，单位为毫秒
如果设置为0，则表示永远不会超时

org.apache.http.params.CoreConnectionPNames.SO_TIMEOUT

Defines the socket timeout (SO_TIMEOUT) in milliseconds, which is the timeout for waiting for data or, put differently,
a maximum period inactivity between two consecutive data packets). A timeout value of zero is interpreted 
as an infinite timeout.This parameter expects a value of type java.lang.Integer.

public static final String SO_TIMEOUT = “http.socket.timeout”;

这个参数设定的是HTTP连接成功后，等待读取数据或者写数据的最大超时时间，单位为毫秒
如果设置为0，则表示永远不会超时