嵌入式码头：Servlet未初始化

我试图在Servlet中的应用程序中嵌入Jetty服务器。嵌入式码头：Servlet未初始化

当我打的网址：https://127.0.0.1:8443/hello

我得到：

HTTP ERROR: 503

Problem accessing /hello.html. Reason:
javax.servlet.UnavailableException: Servlet not initialized 
Powered by Jetty://

这里是我的代码：

public class Main 
{ 
    public static void main(String[] args) throws Exception 
    { 
    // path to keystore. 
    String jetty_home = System.getProperty("jetty.home","c:\\jetty.home"); 
    System.setProperty("jetty.home", jetty_home); 

    // Create a basic jetty server object 
    Server server = new Server(); 

    // HTTP Configuration 
    HttpConfiguration http_config = new HttpConfiguration(); 
    http_config.setSecureScheme("https"); 
    http_config.setSecurePort(8443); 
    http_config.setOutputBufferSize(32768); 

    // SSL Context Factory for HTTPS 
    SslContextFactory sslContextFactory = new SslContextFactory(); 
    sslContextFactory.setKeyStorePath(jetty_home + "\\keystore"); 
    sslContextFactory.setKeyStorePassword("password"); 
    sslContextFactory.setKeyManagerPassword("password"); 

    // HTTPS Configuration 
    HttpConfiguration https_config = new HttpConfiguration(http_config); 
    https_config.addCustomizer(new SecureRequestCustomizer()); 

    // HTTPS connector 
    ServerConnector https = new ServerConnector(server, 
     new SslConnectionFactory(sslContextFactory, "http/1.1"), 
     new HttpConnectionFactory(https_config)); 
    https.setPort(8443); 

    // Set the connectors 
    server.setConnectors(new Connector[] { https }); 

    // Specify the Session ID Manager 
    HashSessionIdManager idmanager = new HashSessionIdManager(); 
    server.setSessionIdManager(idmanager); 

    // Sessions are bound to a context. 
    ServletContextHandler context = new ServletContextHandler(null, "/", ServletContextHandler.SESSIONS|ServletContextHandler.NO_SECURITY); 
    server.setHandler(context); 

    // Create the SessionHandler (wrapper) to handle the sessions 
    HashSessionManager manager = new HashSessionManager(); 
    SessionHandler sessions = new SessionHandler(manager); 
    context.setHandler(sessions); 

    // handle the servlets in the session inside of SessionHandler 
    ServletHandler servletHandler = new ServletHandler(); 
    sessions.setHandler(servletHandler); 

    // tree should look like this: 
    // Server 
    // + Connector -> HTTPS 
    //  + ContextHandler("/") 
    //   + SessionHandler 
    //    + servletHandler 

    // set up the servlet 
    ServletHolder servletHolder = new ServletHolder(Main.MyServlet.class); 

    servletHandler.addServletWithMapping(servletHolder, "/*"); 

    // Start the server 
    server.start(); 
    server.join(); 
    } 

    public static class MyServlet extends HttpServlet 
    { 
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException 
    { 
     resp.getOutputStream().print("<html><body><h1>Hello</h1></body></html>"); 
    } 
    } 
}

我缺少什么？如何/在哪里一个servlet被初始化。

来源

2014-10-29 AllenKll

既然你没有说明码头的什么版本，我假设你正在使用码头9.2.3.v20140905

的代码块为奇数

// Sessions are bound to a context. 
ServletContextHandler context = new ServletContextHandler(null, "/", 
    ServletContextHandler.SESSIONS|ServletContextHandler.NO_SECURITY); 
server.setHandler(context); // <-- this is the ServletContext 

// Create the SessionHandler (wrapper) to handle the sessions 
HashSessionManager manager = new HashSessionManager(); 
SessionHandler sessions = new SessionHandler(manager); 
context.setSessionHandler(sessions); // <-- set the session handler 

// set up the servlet 
ServletHolder servletHolder = new ServletHolder(Main.MyServlet.class); 
context.addServlet(servletHolder, "/*");

首先，不要自行管理ServletHandler ，你只是撤销了所有的工作，ServletContextHandler本身。

另外，不要自行管理处理器树，让内部管理的正确连接，因此切换到.setSessionHandler()

最后，使用的context.addServlet()代替.addServletWithMapping()

来源

2014-10-30 18:45:20

实际使用9.3版本..但同样差。我现在看到我的错误。我并不了解servlet上下文实际上包含ServletHandler。谢谢你的帮助。 – AllenKll 2014-10-30 21:41:33

嵌入式码头：Servlet未初始化

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