问题解决Websocket字符串长度限制问题单包过大

Posted 2022-12-13

【问题】解决Websocket字符串长度限制问题单包过大

请合理设置这两个值, 否则可能会出现内存溢出的情况

@Configuration
public class WebSocketConfig implements ServletContextInitializer 
    /**
     * ServerEndpointExporter 作用
     * 这个Bean会自动注册使用@ServerEndpoint注解声明的websocket endpoint
     * @return
     */
    @Bean
    public ServerEndpointExporter serverEndpointExporter() 
        return new ServerEndpointExporter();
    
    //在此处修改WebSocket传输的限制，如不修改，无法传输长字符串
    @Override
    public void onStartup(ServletContext servletContext) throws ServletException 
        servletContext.addListener(WebAppRootListener.class);
        servletContext.setInitParameter("org.apache.tomcat.websocket.textBufferSize","1024000");
        servletContext.setInitParameter("org.apache.tomcat.websocket.binaryBufferSize","1024000");