Java启动Tomcat的实现步骤

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>handwritingproject</artifactId>
        <groupId>com.njust</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>javaStartTomcat</artifactId>
    <dependencies>

        <!--Java语言操作tomcat -->
        <dependency>
            <groupId>org.apache.tomcat.embed</groupId>
            <artifactId>tomcat-embed-core</artifactId>
            <version>8.5.16</version>
        </dependency>

        <!-- tomcat对jsp支持 -->
        <dependency>
            <groupId>org.apache.tomcat</groupId>
            <artifactId>tomcat-jasper</artifactId>
            <version>8.5.16</version>
        </dependency>

    </dependencies>

</project>

package com.njust.servlet;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class IndexServlet extends HttpServlet {

	@Override
	protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		doPost(req, resp);
	}

	@Override
	protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		resp.getWriter().print("this is index... tomcat");
	}

}

package com.njust.servlet;

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 IndexServletC extends HttpServlet {

	@Override
	protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		doPost(req, resp);
	}

	@Override
	protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		resp.getWriter().print("this is index... tomcat IndexServletC");
	}

}

package com.njust.tomcat;


import com.njust.servlet.IndexServletC;
import org.apache.catalina.LifecycleException;
import org.apache.catalina.core.StandardContext;
import org.apache.catalina.startup.Tomcat;
import org.apache.catalina.startup.Tomcat.FixContextListener;

import com.njust.servlet.IndexServlet;

/**
 * 使用Java语言创建Tomcat服务器<br>
 * Tomcat 底层执行程序 最终servlet<br>
 * SpringMVC底层使用servlet 包装<br>
 *
 */
public class Main {
    private static int PORT = 8080;
    private static String CONTEX_PATH = "/njust";
    private static String SERVLET_NAME = "indexServlet1";
    private static String SERVLET_NAMET = "indexServletC";

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

        // 创建tomcat服务器
        Tomcat tomcatServer = new Tomcat();
        // 指定端口号
        tomcatServer.setPort(PORT);
        // 是否设置自动部署
        tomcatServer.getHost().setAutoDeploy(false);
        // 创建上下文
        StandardContext standardContex = new StandardContext();
        standardContex.setPath(CONTEX_PATH);
        // 监听上下文
        standardContex.addLifecycleListener(new FixContextListener());
        // tomcat容器添加standardContex
        tomcatServer.getHost().addChild(standardContex);

        // 创建Servlet
        tomcatServer.addServlet(CONTEX_PATH, SERVLET_NAME, new IndexServlet());
        tomcatServer.addServlet(CONTEX_PATH, SERVLET_NAMET, new IndexServletC());
        // servleturl映射
        standardContex.addServletMappingDecoded("/index", SERVLET_NAME);
        standardContex.addServletMappingDecoded("/indexc", SERVLET_NAMET);
        tomcatServer.start();
        System.out.println("tomcat start success..");
        // 异步进行接收请求
        tomcatServer.getServer().await();

    }

}

tomcatServer.start();
System.out.println("tomcat start success..");
// 异步进行接收请求
tomcatServer.getServer().await();