java.lang.Object
- org.springframework.web.socket.sockjs.transport.handler.AbstractTransportHandler
- - org.springframework.web.socket.sockjs.transport.handler.AbstractHttpSendingTransportHandler
  - - org.springframework.web.socket.sockjs.transport.handler.XhrPollingTransportHandler

所有已实现的接口:
SockJsSessionFactory, TransportHandler
```
public class XhrPollingTransportHandler
extends AbstractHttpSendingTransportHandler
```
A TransportHandler based on XHR (long) polling.
从以下版本开始:
4.0
作者:
Rossen Stoyanchev

字段概要
- 从类继承的字段 org.springframework.web.socket.sockjs.transport.handler.AbstractTransportHandler
  logger, UTF8_CHARSET

构造器概要
构造器
构造器说明
XhrPollingTransportHandler()

方法概要

所有方法实例方法具体方法
修饰符和类型	方法	说明
`boolean`	`checkSessionType(SockJsSession session)`	Check whether the type of the given session matches the transport type of this `TransportHandler` where session id and the transport type are extracted from the SockJS URL.
`PollingSockJsSession`	`createSession(String sessionId, WebSocketHandler handler, Map<String,Object> attributes)`	Create a new SockJS session.
`protected MediaType`	`getContentType()`
`protected SockJsFrameFormat`	`getFrameFormat(ServerHttpRequest request)`
`TransportType`	`getTransportType()`	Return the transport type supported by this handler.

从类继承的方法 org.springframework.web.socket.sockjs.transport.handler.AbstractHttpSendingTransportHandler
getCallbackParam, handleRequest, handleRequestInternal

从类继承的方法 org.springframework.web.socket.sockjs.transport.handler.AbstractTransportHandler
getServiceConfig, initialize

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 构造器详细资料
  - XhrPollingTransportHandler
```
public XhrPollingTransportHandler()
```
- 方法详细资料
  - getTransportType
```
public TransportType getTransportType()
```
    从接口复制的说明: TransportHandler
    Return the transport type supported by this handler.
  - getContentType
```
protected MediaType getContentType()
```
    指定者:
    getContentType 在类中 AbstractHttpSendingTransportHandler
  - getFrameFormat
```
protected SockJsFrameFormat getFrameFormat(ServerHttpRequest request)
```
    指定者:
    getFrameFormat 在类中 AbstractHttpSendingTransportHandler
  - checkSessionType
```
public boolean checkSessionType(SockJsSession session)
```
    从接口复制的说明: TransportHandler
    Check whether the type of the given session matches the transport type of this TransportHandler where session id and the transport type are extracted from the SockJS URL.
    返回:
    true if the session matches (and would therefore get accepted by TransportHandler.handleRequest(org.springframework.http.server.ServerHttpRequest, org.springframework.http.server.ServerHttpResponse, org.springframework.web.socket.WebSocketHandler, org.springframework.web.socket.sockjs.transport.SockJsSession)), or false otherwise
  - createSession
```
public PollingSockJsSession createSession(String sessionId,
                                          WebSocketHandler handler,
                                          Map<String,Object> attributes)
```
    从接口复制的说明: SockJsSessionFactory
    Create a new SockJS session.
    参数:
    sessionId - the ID of the session
    handler - the underlying WebSocketHandler
    attributes - handshake request specific attributes
    返回:
    a new session, never null

类 XhrPollingTransportHandler

字段概要

从类继承的字段 org.springframework.web.socket.sockjs.transport.handler.AbstractTransportHandler

构造器概要

方法概要

从类继承的方法 org.springframework.web.socket.sockjs.transport.handler.AbstractHttpSendingTransportHandler

从类继承的方法 org.springframework.web.socket.sockjs.transport.handler.AbstractTransportHandler

从类继承的方法 java.lang.Object

构造器详细资料

XhrPollingTransportHandler

方法详细资料

getTransportType

getContentType

getFrameFormat

checkSessionType

createSession