嵌入式Jetty服务器，无法在根上下文中查看网页

1 回答

• 1

  您正在使用 ServletContextHandler ，您不能将其与 ResourceHandler 混合，因为 ServletContextHandler 的内置 DefaultServlet 将提供文件（或给出错误响应），使 ResourceHandler 永远不会执行 .

  To Fix:

  放弃 ResourceHandler （无论如何它远远低于 DefaultServlet ） .

  将servletHandler.setBaseResource(Resource)设置为Web应用程序根目录（静态文件所在的目录） . 这可以是URL，URI或文件系统路径引用 .

  例子：

  // As a file system reference
  servletHandler.setBaseResource(Resource.newResource("/path/to/res"));
  
  // or URL
  servletHandler.setBaseResource(Resource.newResource("jar:file://tmp/b.jar!/webroot"));
  

  资源路径应指向目录，而不是特定文件 .

  有关详细信息，请参阅previous answer about this .

  Example:

  package jetty;
  
  import java.io.File;
  import java.net.MalformedURLException;
  import java.net.URI;
  import java.nio.file.Path;
  
  import org.eclipse.jetty.server.Server;
  import org.eclipse.jetty.servlet.DefaultServlet;
  import org.eclipse.jetty.servlet.ServletContextHandler;
  import org.eclipse.jetty.servlet.ServletHolder;
  import org.eclipse.jetty.util.resource.Resource;
  
  public class SimpleServletExample
  {
      public static void main(String[] args)
      {
          try
          {
              Server server = new Server(8080);
  
              // Find the full path to the webroot.
              // Use the real path, with real file system case for all parts of the path
              // Otherwise we fall afoul of alias checking.
              // (esp on OSX and Windows. Unix and Linux do not have this issue)
              Path webrootPath = new File("src/test/resources/sample-files").toPath().toRealPath();
  
              URI webrootUri = webrootPath.toUri();
  
              System.err.println("webroot uri: " + webrootUri);
  
              Resource webroot = Resource.newResource(webrootUri);
              if (!webroot.exists())
              {
                  System.err.println("Resource does not exist: " + webroot);
                  System.exit(-1);
              }
  
              if (!webroot.isDirectory())
              {
                  System.err.println("Resource is not a directory: " + webroot);
                  System.exit(-1);
              }
  
              // Establish ServletContext for all servlets
              ServletContextHandler context = new ServletContextHandler(ServletContextHandler.SESSIONS);
              context.setContextPath("/");
              context.setBaseResource(webroot);
              // What file(s) should be used when client requests a directory
              context.setWelcomeFiles(new String[] { "index.html" });
              server.setHandler(context);
  
              // Add a servlet (technique #1)
              ServletHolder holderHello = context.addServlet(HelloServlet.class,"/hello");
              holderHello.setInitOrder(0);
  
              // Add default servlet last (always last) (technique #2)
              // Must be named "default", must be on path mapping "/"
              ServletHolder holderDef = new ServletHolder("default",DefaultServlet.class);
              holderDef.setInitParameter("dirAllowed","true");
              context.addServlet(holderDef,"/");
  
              // Start server
              server.start();
          }
          catch (MalformedURLException e)
          {
              System.err.println("Unable to establish webroot");
              e.printStackTrace(System.err);
          }
          catch (Throwable t)
          {
              t.printStackTrace(System.err);
          }
      }
  }
  

  回复于 2024-05-02T12:55:11+08:00