import com.alibaba.dubbo.remoting.http.servlet.BootstrapListener; //导入依赖的package包/类
protected void doStart(URL url) {
    // TODO jetty will by default enable keepAlive so the xml config has no effect now
    httpServer = httpBinder.bind(url, new RestHandler());

    ServletContext servletContext = ServletManager.getInstance().getServletContext(url.getPort());
    if (servletContext == null) {
        servletContext = ServletManager.getInstance().getServletContext(ServletManager.EXTERNAL_SERVER_PORT);
    }
    if (servletContext == null) {
        throw new RpcException("No servlet context found. If you are using server='servlet', " +
                "make sure that you've configured " + BootstrapListener.class.getName() + " in web.xml");
    }

    servletContext.setAttribute(ResteasyDeployment.class.getName(), deployment);

    try {
        dispatcher.init(new SimpleServletConfig(servletContext));
    } catch (ServletException e) {
        throw new RpcException(e);
    }
}
 

import com.alibaba.dubbo.remoting.http.servlet.BootstrapListener; //导入依赖的package包/类
protected <T> Runnable doExport(T impl, Class<T> type, URL url) throws RpcException {
    String addr = url.getIp() + ":" + url.getPort();
    Class implClass = ServiceClassHolder.getInstance().popServiceClass();
    RestServer server = servers.get(addr);
    if (server == null) {
        server = serverFactory.createServer(url.getParameter(Constants.SERVER_KEY, "jetty"));
        server.start(url);
        servers.put(addr, server);
    }

    String contextPath = getContextPath(url);
    if ("servlet".equalsIgnoreCase(url.getParameter(Constants.SERVER_KEY, "jetty"))) {
        ServletContext servletContext = ServletManager.getInstance().getServletContext(ServletManager.EXTERNAL_SERVER_PORT);
        if (servletContext == null) {
            throw new RpcException("No servlet context found. Since you are using server='servlet', " +
                    "make sure that you've configured " + BootstrapListener.class.getName() + " in web.xml");
        }
        String webappPath = servletContext.getContextPath();
        if (StringUtils.isNotEmpty(webappPath)) {
            webappPath = webappPath.substring(1);
            if (!contextPath.startsWith(webappPath)) {
                throw new RpcException("Since you are using server='servlet', " +
                        "make sure that the 'contextpath' property starts with the path of external webapp");
            }
            contextPath = contextPath.substring(webappPath.length());
            if (contextPath.startsWith("/")) {
                contextPath = contextPath.substring(1);
            }
        }
    }

    final Class resourceDef = GetRestful.getRootResourceClass(implClass) != null ? implClass : type;

    server.deploy(resourceDef, impl, contextPath);

    final RestServer s = server;
    return new Runnable() {
        public void run() {
            // TODO due to dubbo's current architecture,
            // it will be called from registry protocol in the shutdown process and won't appear in logs
            s.undeploy(resourceDef);
        }
    };
}
 

import com.alibaba.dubbo.remoting.http.servlet.BootstrapListener; //导入依赖的package包/类
protected <T> Runnable doExport(T impl, Class<T> type, URL url) throws RpcException {
    String addr = url.getIp() + ":" + url.getPort();
    Class implClass = ServiceClassHolder.getInstance().popServiceClass();
    RestServer server = servers.get(addr);
    if (server == null) {
        server = serverFactory.createServer(url.getParameter(Constants.SERVER_KEY, "jetty"));
        server.start(url);
        servers.put(addr, server);
    }

    String contextPath = getContextPath(url);
    if ("servlet".equalsIgnoreCase(url.getParameter(Constants.SERVER_KEY, "jetty"))) {
        ServletContext servletContext = ServletManager.getInstance().getServletContext(ServletManager.EXTERNAL_SERVER_PORT);
        if (servletContext == null) {
            throw new RpcException("No servlet context found. Since you are using server='servlet', " +
                    "make sure that you've configured " + BootstrapListener.class.getName() + " in web.xml");
        }
        String webappPath = servletContext.getContextPath();
        if (StringUtils.isNotEmpty(webappPath)) {
            webappPath = webappPath.substring(1);
            if (!contextPath.startsWith(webappPath)) {
                throw new RpcException("Since you are using server='servlet', " +
                        "make sure that the 'contextpath' property starts with the path of external webapp");
            }
            contextPath = contextPath.substring(webappPath.length());
            if (contextPath.startsWith("/")) {
                contextPath = contextPath.substring(1);
            }
        }
    }

    final Class resourceDef = GetRestful.getRootResourceClass(implClass) != null ? implClass : type;

    // dubbo 服务多版本
    String version = url.getParameter(Constants.VERSION_KEY);
    if (StringUtils.isNotEmpty(version)) {
        contextPath = version + "/" + contextPath;
    }
    server.deploy(resourceDef, impl, contextPath);

    final RestServer s = server;
    return new Runnable() {
        public void run() {
            // TODO due to dubbo's current architecture,
            // it will be called from registry protocol in the shutdown process and won't appear in logs
            s.undeploy(resourceDef);
        }
    };
}