创建内嵌tomcat的java项目

一、在pom文件里添加内嵌版tomcat的依赖

        <!-- 添加内嵌版tomcat -->
        <dependency>
            <groupId>org.apache.tomcat.embed</groupId>
            <artifactId>tomcat-embed-core</artifactId>
            <version>9.0.50</version>
        </dependency>
        <dependency>
            <groupId>org.apache.tomcat.embed</groupId>
            <artifactId>tomcat-embed-jasper</artifactId>
            <version>9.0.50</version>
        </dependency>
        <!-- 添加内嵌版tomcat -->

二、创建启动类如下

import org.apache.catalina.Context;
import org.apache.catalina.LifecycleException;
import org.apache.catalina.WebResourceRoot;
import org.apache.catalina.startup.Tomcat;
import org.apache.catalina.webresources.DirResourceSet;
import org.apache.catalina.webresources.StandardRoot;

import java.io.File;
/**
 * 项目启动类
 */
public class Main {
    public static void main(String[] args) throws LifecycleException {
        // 启动 tomcat
        Tomcat tomcat = new Tomcat();
        tomcat.setPort(Integer.getInteger("port", 8888));
        tomcat.getConnector();
        // 创建 WebApp
        Context context = tomcat.addWebapp("", new File("src/main/webapp").getAbsolutePath());
        WebResourceRoot resources = new StandardRoot(context);
        resources.addPreResources(
                new DirResourceSet(resources, "/WEB-INF/classes", new File("target/classes").getAbsolutePath(), "/"));
        context.setResources(resources);

        tomcat.start();
        tomcat.getServer().await();
    }
}

 三、启动项目访问8888端口