的WebLogic 12：的WebSocket握手EXCETION（500）：将异步-支持被禁用

Question

错误是：

org.springframework.web.socket.server.HandshakeFailureException：错误 握手期间：http://2.12.85.0:6/eto/tvoy;嵌套的例外是 java.lang.IllegalStateException：异步，支持这个 要求停用：weblogic.servlet.internal.ServletRequestImpl

服务器：12的WebLogic 这似乎当我试图连接到WebSocket的。

我的web.xml：

<?xml version="1.0" encoding="UTF-8"?> 
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" 
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
     xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" 
     version="3.1"> 
    <context-param> 
     <param-name>contextConfigLocation</param-name> 
     <param-value> 
      classpath:applicationContext.xml 
     </param-value> 
    </context-param> 

    <servlet> 
     <servlet-name>dispatcher</servlet-name> 
     <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> 
     <init-param> 
      <param-name>contextConfigLocation</param-name> 
      <param-value>/WEB-INF/dispatcher-servlet.xml</param-value> 
     </init-param> 
     <load-on-startup>1</load-on-startup> 
     <async-supported>true</async-supported> 
    </servlet> 
    <servlet-mapping> 
     <servlet-name>dispatcher</servlet-name> 
     <url-pattern>/</url-pattern> 
    </servlet-mapping> 

    <!--Позволяет работать с русскими символами--> 
    <filter> 
     <filter-name>encodingFilter</filter-name> 
     <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> 
     <init-param> 
      <param-name>encoding</param-name> 
      <param-value>UTF-8</param-value> 
     </init-param> 
     <init-param> 
      <param-name>forceEncoding</param-name> 
      <param-value>true</param-value> 
     </init-param> 
    </filter> 
    <filter> 
     <filter-name>AFilter</filter-name> 
     <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class> 
     <async-supported>true</async-supported> 
    </filter> 
    <filter-mapping> 
     <filter-name>AFilter</filter-name> 
     <url-pattern>/*</url-pattern> 
    </filter-mapping> 
    <filter-mapping> 
     <filter-name>encodingFilter</filter-name> 
     <url-pattern>/*</url-pattern> 
    </filter-mapping> 
</web-app> 

我webSocketConfig：

import org.slf4j.Logger; 
import org.slf4j.LoggerFactory; 
import org.springframework.context.annotation.Bean; 
import org.springframework.context.annotation.Configuration; 
import org.springframework.scheduling.annotation.EnableAsync; 
import org.springframework.web.socket.WebSocketHandler; 
import org.springframework.web.socket.config.annotation.EnableWebSocket; 
import org.springframework.web.socket.config.annotation.WebSocketConfigurer; 
import org.springframework.web.socket.config.annotation.WebSocketHandlerRegistry; 

@Configuration 
@EnableWebSocket 
@EnableAsync 
public class WebSocketConfig implements WebSocketConfigurer { 
    private static final Logger log = LoggerFactory.getLogger("webSocketLogger"); 
    @Override 
    public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) { 
     log.error("registerWebSocketHandlers"); 
     registry.addHandler(webSocketHandler(), "/chat").setAllowedOrigins("*"); 
    } 

    @Bean 
    public WebSocketHandler webSocketHandler() { 
     return new workspace.websocket.controller.WebSocketHandler(); 
    } 

} 

我的WebSocket处理程序：

public class WebSocketHandler implements org.springframework.web.socket.WebSocketHandler { 
    private static final Logger log = LoggerFactory.getLogger("webSocketLogger"); 

    @Override 
    public void afterConnectionEstablished(WebSocketSession webSocketSession) throws Exception { 

    } 

    @Override 
    public void handleMessage(WebSocketSession webSocketSession, WebSocketMessage<?> webSocketMessage) throws Exception { 

    } 


    @Override 
    public void handleTransportError(WebSocketSession webSocketSession, Throwable throwable) throws Exception { 
     log.error("transport error", throwable); 
    } 

    @Override 
    public void afterConnectionClosed(WebSocketSession webSocketSession, CloseStatus closeStatus) throws Exception { 
    } 

    @Override 
    public boolean supportsPartialMessages() { 
     return false; 
    } 
} 

我该怎么办？

Answer 1

对于使用异步功能的应用程序，整个请求处理链必须通过注释或其部署描述符设置该属性。如果应用程序尝试启动异步操作并且请求处理链中存在不支持异步处理的servlet或servlet筛选器，则会抛出IllegalStateException。因此，要解决这个问题，该组过滤器必须给予额外的元素：

<async-supported>true</async-supported> 

在web.xml你缺少这个编码过滤器。所以你的编码过滤配置应该是这样的：

<filter> 
     <filter-name>encodingFilter</filter-name> 
     <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> 
     <async-supported>true</async-supported>    
     <init-param> 
      <param-name>encoding</param-name> 
      <param-value>UTF-8</param-value> 
     </init-param> 
     <init-param> 
      <param-name>forceEncoding</param-name> 
      <param-value>true</param-value> 
     </init-param>    
    </filter>