SpringBoot-2.7.6构建WAR包外置Tomcat调试启动过程

import org.apache.catalina.LifecycleException;
import org.apache.catalina.core.StandardServer;
import org.apache.catalina.startup.Tomcat;
import org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory;
import org.springframework.boot.web.servlet.server.ServletWebServerFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
 
@Configuration
public class ExternalTomcatConfiguration {
 
    @Bean
    public ServletWebServerFactory servletContainer() {
        // 返回一个ServletWebServerFactory的实现，用于外部Tomcat
        return new TomcatServletWebServerFactory() {
            @Override
            protected TomcatServletWebServerFactory createWebServerFactory(Tomcat tomcat) {
                // 这里可以自定义Tomcat的配置
                tomcat.setPort(8080);
                // 其他配置...
                return super.createWebServerFactory(tomcat);
            }
        };
    }
 
    public static void main(String[] args) throws LifecycleException {
        Tomcat tomcat = new Tomcat();
        tomcat.setBaseDir("path/to/tomcat/base/dir");
        tomcat.getHost().setAppBase("path/to/app/base/dir");
        tomcat.setPort(8080);
 
        StandardServer server = (StandardServer) tomcat.getServer();
        // 可以添加监听器等
 
        // 添加WAR应用
        tomcat.addWebapp("/myapp", "/path/to/myapp.war");
 
        // 启动Tomcat
        tomcat.start();
        // 运行Tomcat直到停止或发生错误
        tomcat.getServer().await();
    }
}

这个代码示例展示了如何在Spring Boot应用中配置外部Tomcat容器，并如何在main方法中启动和运行Tomcat服务器。在实际开发中，你需要替换路径和端口等配置以适应你的具体环境。