channel
value "/meta/connect"
值为/meta/connect
successful
boolean indicating the success or failure of the connection
指示连接失败或成功的布尔值
clientId
The negotiated client ID
协商的客户端ID
A connect response MAY contain the message fields:
一个连接响应可能包含的消息字段：
error
advice
ext
id
same value as request message id
和请求消息id相同
timestamp
An example connect response is:
连接响应的一个例子：
[
{
"channel": "/meta/connect",
"successful": true,
"error": "",
"clientId": "Un1q31d3nt1f13r",
"timestamp": "12:00:00 1970",
"advice": { "reconnect": "retry" }
}
]
The client MUST maintain only a single outstanding connect message. If the server does not have a current outstanding connect and a connect is not received within a configured timeout, then the server SHOULD act as if a disconnect message has been received.
客户端必须维护唯一的未决连接消息。如果服务端没有一个当前未决的连接，并且在配置的超时时间内，没有收到一个连接，服务端应该认为收到了一个断开消息。
4.4. 断开 disconnect 4.4.1. 断开请求 disconnect RequestWhen a connected client wishes to cease operation it should send a request to the "/meta/disconnect" channel for the server to remove any client-related state. The server SHOULD release any waiting meta message handlers. Bayeux client applications should send a disconnect request when the user shuts down a browser window or leaves the current page. A Bayeux server SHOULD not rely solely on the client sending a disconnect message to remove client-related state information because a disconnect message might not be sent from the client or the disconnect request might not reach the server.
一个已连接客户端想终止操作的时候，它应该给/meta/disconnect通道发送一个请求，让服务端移除任何客户端相关的状态。服务端应该释放任何等待中的元消息处理。当用户关闭浏览器窗口或者离开当前页面时，Bayeux客户端应用应该发送一个断开请求。Bayeux服务端不应该只依赖于客户端发送断开消息才移除客户端相关的状态信息，因为断开消息可能不从客户端发送或者断开请求不会到达服务端。
A disconnect request MUST contain the message fields:
一个断开请求必须包含的消息字段：
channel
value "/meta/disconnect"
值为/meta/disconnect
clientId
The client ID returned in the handshake response
握手响应中返回的客户端ID
A disconnect request MAY contain the message fields:
一个断开请求可能包含的消息字段：
ext
id
An example disconnect request is:
断开请求的一个例子：
[
{
"channel": "/meta/disconnect",
"clientId": "Un1q31d3nt1f13r"
}
]
A Bayeux server MUST respond to a disconnect request with a disconnect response.
Bayeux服务端必须用一个断开响应对一个断开请求作出响应。
A disconnect response MUST contain the message fields:
一个断开响应必须包含的消息字段：
channel
value "/meta/disconnect"
值为/meta/disconnect
clientId
The client ID returned in the handshake response
握手响应中返回的客户端ID
successful
boolean value indicated the success or failure of the disconnect request
表明断开请求成功或失败的布尔值
A disconnect response MAY contain the message fields:
一个断开响应可能包含的消息字段：
error
ext
id
same value as request message id
和请求消息id相同
An example disconnect response is:
一个断开响应的例子：
[
{
"channel": "/meta/disconnect",
"clientId": "Un1q31d3nt1f13r",
"successful": true
}
]
A connected Bayeux client may send subscribe messages to register interest in a channel and to request that messages published to the subscribe channel are delivered to the client.
一个已连接Bayeux客户端可以发送订阅消息，登记关心的一个通道，并请求发布到这个订阅通道的消息被发送到这个客户端。
A subscribe request MUST contain the message fields:
一个订阅请求必须包含的消息字段：
channel
value "/meta/subscribe"
值为“/meta/subscribe”
clientId
The client ID returned in the handshake response
握手响应中返回的客户端ID
subscription
a channel name or a channel pattern or an array of channel names and channel patterns.
一个通道名称或者一个通道模式或者一个通道名称和通道模式的数组
A subscribe request MAY contain the message fields:
一个订阅请求可能包含的消息字段：
ext
id
An example subscribe request is:
一个订阅请求的例子：
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