Start a tomcat using the Main method

Package org.huluo.embedTomcat;

Import org.apache.catalina.LifecycleException;
Import Org.apache.catalina.core.StandardContext;
Import Org.apache.catalina.startup.Tomcat;

Import java.io.IOException;

public class Main {public
    static void Main (string[] args) throws Lifecycleexception, IOException {
        tomcat tomcat = new Tomcat ();
        Tomcat.sethostname ("localhost");
        Tomcat.setport ();
        Tomcat.setbasedir ("E:/embedtomcat");
        String contextpath = "";

        Standardcontext context = new Standardcontext ();
        Context.setpath (contextpath);
        Context.addlifecyclelistener (New Tomcat.fixcontextlistener ());
        Tomcat.gethost (). AddChild (context);

        Tomcat.addservlet (ContextPath, "Hello", New Embedtomcatservlet ());
        context.addservletmappingdecoded ("/hello", "Hello");

        Tomcat.start ();

        Tomcat.getserver (). await ();
    }

This allows you to start an embedded Tomcat in the form of a Main method

But we don't have a servlet yet:

In writing a servlet, the servlet only prints a line on the page HelloWorld

Package org.huluo.embedTomcat;

Import javax.servlet.ServletException;
Import Javax.servlet.http.HttpServlet;
Import Javax.servlet.http.HttpServletRequest;
Import Javax.servlet.http.HttpServletResponse;
Import java.io.IOException;

public class Embedtomcatservlet extends HttpServlet {

    @Override
    protected void doget (HttpServletRequest req, HttpServletResponse resp) throws Servletexception, IOException {this.dopost
        (req, resp);

    @Override
    protected void DoPost (HttpServletRequest req, HttpServletResponse resp) throws Servletexception, IOException {
        resp.getwriter (). Write ("HelloWorld");
    }

and add the embedded Tomcat dependency pack OH

Compile (group: ' org.apache.tomcat.embed ', Name: ' Tomcat-embed-core ', version: ' 8.5.14 ')