更新时间:2023-12-04 14:32:43
嵌入式Jetty是这样的很棒。
Embedded Jetty is so wonderful here.
您有几个常见的选择:
ServletHolder
将其交给Jetty(可以是任何值或对象类型) ServletContext
,然后通过应用程序中的 ServletContext
访问它(可以是任何值或对象类型)。ServletHolder
(can be any value or object type)ServletContext
in your main, and then access it via the ServletContext
in your application (can be any value or object type).示例:
package jetty;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.servlet.ServletHolder;
public class ObjectPassingExample
{
public static void main(String args[]) throws Exception
{
Server server = new Server(8080);
ServletContextHandler context = new ServletContextHandler();
context.setContextPath("/");
// Option 1: Direct servlet instantiation and ServletHolder
HelloServlet hello = new HelloServlet("everyone");
ServletHolder helloHolder = new ServletHolder(hello);
context.addServlet(helloHolder, "/hello/*");
// Option 2: Using ServletContext attribute
context.setAttribute("my.greeting", "you");
context.addServlet(GreetingServlet.class, "/greetings/*");
server.setHandler(context);
server.start();
server.join();
}
public static class HelloServlet extends HttpServlet
{
private final String hello;
public HelloServlet(String greeting)
{
this.hello = greeting;
}
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException
{
resp.setContentType("text/plain");
resp.getWriter().println("Hello " + this.hello);
}
}
public static class GreetingServlet extends HttpServlet
{
private String greeting;
@Override
public void init() throws ServletException
{
this.greeting = (String) getServletContext().getAttribute("my.greeting");
}
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException
{
resp.setContentType("text/plain");
resp.getWriter().println("Greetings to " + this.greeting);
}
}
}