JAVA獲得websocket請求路徑前綴

 

 /**
     * 獲得websocket請求路徑前綴（線程安全 速度相對慢）
     * @param request
     * @return
     */
    public static String getWebsocketUrl(HttpServletRequest request) {
        StringBuffer buffer=new StringBuffer();
        buffer.append("ws://")
                .append(request.getServerName())
                .append(":")
                .append(request.getServerPort())
                .append(request.getContextPath())
                .append("/");
        return buffer.toString();
    }

 

 

/**
     * 獲得websocket請求路徑前綴（線程不安全 速度相對快）
     * @param request
     * @return
     */
    public static String getWebsocketUrl(HttpServletRequest request) {
        StringBuilder builder=new StringBuilder();
        builder.append("ws://")
                .append(request.getServerName())
                .append(":")
                .append(request.getServerPort())
                .append(request.getContextPath())
                .append("/");
        return builder.toString();
    }