java java中JSch库中Session和Channel的默认超时时间是多少
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What is the default timeout for Session and Channel in JSch library in java
提问by Adon Smith
Does anyone know the default timeout for Session and Channel.
有谁知道 Session 和 Channel 的默认超时。
session.connect();
channel.connect();
I am going through the document but it doesn't explicitly say what is the default timeout ?
我正在浏览文档，但它没有明确说明默认超时是多少？
回答by Martin Prikryl
For the Channel, the default timeout seems to be 20 seconds.
对于Channel，默认超时似乎是 20 秒。
See the implementation of the Channel.sendChannelOpen().
请参阅Channel.sendChannelOpen().
The timeout here defines, how long will the connect()wait for a response to open channel request. I'd say that the name of the method is confusing, it should be open(). You are not connecting anywhere (the session is already open).
这里的超时定义了connect()等待响应打开通道请求的时间。我会说该方法的名称令人困惑，它应该是open(). 您没有在任何地方连接（会话已经打开）。
For the Session, the default timeout is set using the setTimeout()method. If not set, the default default is 0, what means "infinite". Though there's always some last resort timeout on an OS-level.
对于Session，使用setTimeout()方法设置默认超时。如果没有设置，默认默认为0，即“无限”的意思。尽管在操作系统级别上总是有一些不得已的超时。
The timeout here defines:
这里的超时定义：
- How long will the
connect()wait for the socket to open.
Though this defines an upper limit only, to define a lower limit, see JSch session timeout limit. - Timeout for all future "reads" from the socket. See the
Socket.SetSoTimeout - It also affects a connection to a proxy, if there's any.
connect()等待套接字打开需要多长时间。
虽然这仅定义了上限，但要定义下限，请参阅JSch session timeout limit。- 所有未来从套接字“读取”的超时。见
Socket.SetSoTimeout - 如果有的话，它也会影响到代理的连接。
