带有嵌入式tomcat的Servlet应用程序

问题描述

我正在尝试将简单的servlet与嵌入式tomcat一起使用。我的应用程序已成功启动，但是我无法访问该应用程序。

这是我完整的代码。

pom.xml

<dependencies>
    <dependency>
        <groupId>org.apache.tomcat.embed</groupId>
        <artifactId>tomcat-embed-core</artifactId>
        <version>9.0.37</version>
    </dependency>
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>4.0.0</version>
    </dependency>
</dependencies>

HelloServlet.java

package coreservlets.api;

import javax.servlet.servletexception;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;

public class HelloServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;

    public HelloServlet() {
        super();
    }


    public void doGet(HttpServletRequest request,HttpServletResponse response) throws servletexception,IOException {
        response.setContentType("text/html");
        PrintWriter out = response.getWriter();
        String docType = "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 " + "Transitional//EN\">\n";
        out.println(docType + "<HTML>\n" + "<HEAD><TITLE>Hello</TITLE></HEAD>\n" + "<BODY BGCOLOR=\"#FDF5E6\">\n" + "<H1>My First Servlet</H1>\n" + "</BODY></HTML>");
    }

    protected void doPost(HttpServletRequest request,IOException {
        doGet(request,response);
    }

}

App.java

package coreservlets;

import org.apache.catalina.Context;
import org.apache.catalina.LifecycleException;
import org.apache.catalina.startup.Tomcat;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.File;


public class App {

    public static void main(String[] args) throws LifecycleException {

        Logger logger = LoggerFactory.getLogger(App.class);
        Tomcat tomcat = new Tomcat();

        int port = 8085;
        tomcat.setPort(port);
        Context ctx = tomcat.addContext("/Ch01",new File(".").getAbsolutePath());
        Tomcat.addServlet(ctx,"helloServlet","coreservlets.api.HelloServlet");
        ctx.addServletMappingDecoded("/hello","helloServlet");
        tomcat.start();
        logger.info("Tomcat server started at port " + port);
        tomcat.getServer().await();
    }
}

我正在尝试使用URL“ http：// localhost：8085 / Ch01 / hello”访问servlet，但是出现以下错误

无法访问此网站

解决方法

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embedded-tomcat-8 servlets tomcat tomcat

带有嵌入式tomcat的Servlet应用程序

问题描述

解决方法

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