本来用websocket使用注解的方式接受参数，但是有一个需求，有一个参数可能传又可能不传，本人不才，找了很多方式都未能以注解的方式实现，所以还是用传统拦截器的方式获取参数，主要配置如下：
拦截器类
@Component public class WebSocketInterceptor extends HttpSessionHandshakeInterceptor { private Logger log = LoggerFactory.getLogger(this.getClass()); /** * 握手后 * * @param request * @param response * @param wsHandler * @param ex */ @Override public void afterHandshake(ServerHttpRequest request, ServerHttpResponse response, WebSocketHandler wsHandler, Exception ex) { } /** * TODO 描述该方法的实现功能. * * @see org.springframework.web.socket.server.support.HttpSessionHandshakeInterceptor#beforeHandshake(org.springframework.http.server.ServerHttpRequest, org.springframework.http.server.ServerHttpResponse, org.springframework.web.socket.WebSocketHandler, java.util.Map) */ @Override public boolean beforeHandshake(ServerHttpRequest request, ServerHttpResponse response, WebSocketHandler wsHandler, Map<String, Object> attributes) throws Exception { if (request instanceof ServletServerHttpRequest) { ServletServerHttpRequest serverHttpRequest = (ServletServerHttpRequest) request; //获取参数 String id = serverHttpRequest.getServletRequest().getParameter("id"); String name = serverHttpRequest.getServletRequest().getParameter("name"); log.info("拦截入参{}", id); attributes.put("id", id); if (name == null) { // 如果参数为存0 然后判断这个参数是否为0就可以了 attributes.put("name", "0"); } else { attributes.put("name", name); } HttpSession httpSession = serverHttpRequest.getServletRequest().getSession(false); if (httpSession != null) { log.debug("HttpSessionId:" + httpSession.getId()); attributes.put("currHttpSession", httpSession); } else { log.debug("httpsession is null"); } } return true; } @Override public Collection<String> getAttributeNames() { // TODO Auto-generated method stub return super.getAttributeNames(); } @Override public boolean isCopyAllAttributes() { // TODO Auto-generated method stub return super.isCopyAllAttributes(); } @Override public boolean isCopyHttpSessionId() { // TODO Auto-generated method stub return super.isCopyHttpSessionId(); } @Override public boolean isCreateSession() { // TODO Auto-generated method stub return super.isCreateSession(); } @Override public void setCopyAllAttributes(boolean copyAllAttributes) { // TODO Auto-generated method stub super.setCopyAllAttributes(copyAllAttributes); } @Override public void setCopyHttpSessionId(boolean copyHttpSessionId) { // TODO Auto-generated method stub super.setCopyHttpSessionId(copyHttpSessionId); } @Override public void setCreateSession(boolean createSession) { // TODO Auto-generated method stub super.setCreateSession(createSession); } }websocket配置类
@Configuration @EnableWebSocket public class WebSocketConfig implements WebSocketConfigurer { @Override public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) { // BidSocketCoreService 这个是websocket接收操作类 路径是与前台一致的路径 registry.addHandler(new BidSocketCoreService(), "/webSocket/socketDetail") // WebSocketInterceptor就是刚才配置的拦截器类 // setAllowedOrigins("*") 这个要加上 支持跨域 .addInterceptors(new WebSocketInterceptor()).setAllowedOrigins("*"); } }接下来BidSocketCoreService类需要继承 WebSocketHandler类 实现接口，类上加上@Service注解，其他的就和注解方式一样了
然后在spring-servlet里加上拦截
<mvc:interceptors> <mvc:interceptor> <mvc:mapping path="/**" /> <mvc:exclude-mapping path="/webSocket/**"/> </mvc:interceptor> </mvc:interceptors>就可以了
前端访问ws://xxxxxx/webSocket/socketDetail?id=xxx&name=xxx就可以获取了，name可以传也可以不传
有什么问题互相进步
