[英]configure jetty 9.3.0 embedded (programmatically) with caching
我似乎無法讓我的碼頭使用緩存。 我有一個僅顯示 html 的碼頭服務器。 我在那里有 JavaScript 和很多我不想每次都加載的圖像。 例如,我的應用程序需要在 10 秒內在 3 個頁面之間切換。 加載 jQuery 3 次非常耗時,加載徽標圖片和所有這些都需要更長的時間。 這就是為什么我要啟用緩存。
這是我得到的:
server = new Server(); //new Jetty Server
//setting up a ssl connection
try
{
SslContextFactory cf = new SslContextFactory();
cf.setKeyStorePath(keystore);
cf.setKeyStorePassword("password");
HttpConfiguration config = new HttpConfiguration();
config.addCustomizer(new SecureRequestCustomizer());
config.setSecureScheme("https");
config.setSecurePort(8443);
HttpConfiguration sslConfiguration = new HttpConfiguration(config);
sslConfiguration.addCustomizer(new SecureRequestCustomizer());
httpConnector = new ServerConnector(server);
httpConnector.addConnectionFactory(new HttpConnectionFactory(config));
httpConnector.setPort(suggestHttpPort());
httpConnector.setName("unsecured");
sslConnector = new ServerConnector(server,
new SslConnectionFactory(cf, HttpVersion.HTTP_1_1.toString()),
new HttpConnectionFactory(sslConfiguration));
sslConnector.setPort(suggestHttpSSLPort());
sslConnector.setName("secured");
server.setConnectors(new Connector[] { httpConnector, sslConnector });
}
catch (Exception e)
{
log.error("setting up Jetty failed", e);
}
// This is where i want to enable caching, at least that is what i have figuged out so far but its not working
DefaultServlet defaultServlet = new DefaultServlet();
ServletHolder holder = new ServletHolder(defaultServlet);
holder.setInitParameter("cacheControl", "max-age=120, public");
ServletContextHandler bb = new ServletContextHandler();
bb.addServlet(holder, "/");
server.setHandler(bb);
server.start();
我做錯了什么? 我想為所有內容啟用緩存...
不要像那樣直接對啟動的 Servlet 使用ServletHolder
, ServletHolder
讓ServletHolder
創建和初始化類引用。
您需要一個ServletContextHandler
和一個DefaultServlet
也可以使用的已定義基本資源(這應該是指向靜態文件內容根的 URI)
示例:
ServletContextHandler context = new ServletContextHandler();
context.setContextPath("/");
context.setBaseResource(Resource.newResource(webRootUri));
ServletHolder holderPwd = new ServletHolder("default", DefaultServlet.class);
holderPwd.setInitParameter("dirAllowed", "true");
holderPwd.setInitParameter("cacheControl", "max-age=3600,public");
context.addServlet(holderPwd,"/");
server.setHandler(context);
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