![](/img/trans.png)
[英]Spring websocket(stomp, sockjs): Controller didn't get whole data
[英]Get Websocket session data in Spring when handing STOMP SEND
Spring Websocket教程告訴我,如果我想處理STOMP SEND命令,我將使用( http://docs.spring.io/spring/docs/current/spring-framework-reference/html/websocket.html )
@Controller
public class GreetingController {
@MessageMapping("/greeting") {
public String handle(String greeting) {
return "[" + getTimestamp() + ": " + greeting;
}
}
然而,我需要知道哪個Websocket會話正在發送這個,以便進行檢查
if (sessionIsAllowedToDoThings(sessionData)) {...}
因此,我如何獲得此示例的Websocket Session數據?
好吧,您可以通過將org.springframework.messaging.simp.stomp.StompHeaderAccessor
參數添加到handle(String)
方法: handle(String, StompHeaderAccessor)
來獲取websocket的會話ID(和其他字段handle(String, StompHeaderAccessor)
。
如果要訪問真正的JSESSIONID
屬性,則必須像這樣創建org.springframework.web.socket.server.HandshakeInterceptor
的實現(它是用Kotlin編寫的):
class HttpHandshakeInterceptor : HandshakeInterceptor {
companion object {
const val ATTRIBUTE_SESSION_ID = "sessionId"
}
override fun beforeHandshake(request: ServerHttpRequest, response: ServerHttpResponse, wsHandler: WebSocketHandler, attributes: MutableMap<String, Any>): Boolean {
attributes[ATTRIBUTE_SESSION_ID] = (request as ServletServerHttpRequest).servletRequest.session.id
return true
}
override fun afterHandshake(request: ServerHttpRequest, response: ServerHttpResponse, wsHandler: WebSocketHandler, exception: Exception?) {}
}
並將其注冊到您的org.springframework.web.socket.config.annotation.WebSocketMessageBrokerConfigurer
如下所示:
override fun registerStompEndpoints(registry: StompEndpointRegistry) {
registry.addEndpoint("/endpoint").addInterceptors(httpHandshakeInterceptor)
}
這里的主要思想是攔截初始握手並在websocket屬性中存儲真實會話ID。 這些屬性可以通過StompHeaderAccessor
傳遞給您的handle(String, StompHeaderAccessor)
方法。
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.