XhrTransport (Spring Framework 4.3.30.RELEASE API)

所有超级接口:
InfoReceiver, Transport
所有已知实现类:
AbstractXhrTransport, JettyXhrTransport, RestTemplateXhrTransport, UndertowXhrTransport
```
public interface XhrTransport
extends Transport, InfoReceiver
```
A SockJS Transport that uses HTTP requests to simulate a WebSocket interaction. The connect method of the base Transport interface is used to receive messages from the server while the executeSendRequest(java.net.URI, org.springframework.http.HttpHeaders, org.springframework.web.socket.TextMessage) method here is used to send messages.
从以下版本开始:
4.1
作者:
Rossen Stoyanchev

方法概要

所有方法实例方法抽象方法
修饰符和类型	方法	说明
`void`	`executeSendRequest(URI transportUrl, HttpHeaders headers, TextMessage message)`	Execute a request to send the message to the server.
`boolean`	`isXhrStreamingDisabled()`	An `XhrTransport` supports both the "xhr_streaming" and "xhr" SockJS server transports.

从接口继承的方法 org.springframework.web.socket.sockjs.client.InfoReceiver
executeInfoRequest

从接口继承的方法 org.springframework.web.socket.sockjs.client.Transport
connect, getTransportTypes

- 方法详细资料
  - isXhrStreamingDisabled
```
boolean isXhrStreamingDisabled()
```
    An XhrTransport supports both the "xhr_streaming" and "xhr" SockJS server transports. From a client perspective there is no implementation difference.
    By default an XhrTransport will be used with "xhr_streaming" first and then with "xhr", if the streaming fails to connect. In some cases it may be useful to suppress streaming so that only "xhr" is used.
  - executeSendRequest
```
void executeSendRequest(URI transportUrl,
                        HttpHeaders headers,
                        TextMessage message)
```
    Execute a request to send the message to the server.
    Note that as of 4.2 this method accepts a headers parameter.
    参数:
    transportUrl - the URL for sending messages.
    message - the message to send