内嵌Tomcat和SpringMVC的简单整合测试

1、首先是包的依赖

 2、添加对外暴露的接口类

package com.fh.controller;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class IndexController {


    public IndexController(){
        System.out.println("indexController初始化");
    }


    @GetMapping("index")
    @ResponseBody
    public String index(){
        return "index";
    }
}

3、添加配置类信息

package com.fh.config;

import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;

@Configuration
@ComponentScan("com.fh")
public class AutoConfig {
}

4、添加主类进行SpringWeb环境的初始化和Tomcat的启动

package com.fh;

import com.fh.config.AutoConfig;
import org.apache.catalina.Context;
import org.apache.catalina.Server;
import org.apache.catalina.connector.Connector;
import org.apache.catalina.startup.Tomcat;
import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
import org.springframework.web.servlet.DispatcherServlet;

import java.io.File;

public class ExampleMvcApplication {

   public static void main(String[] args) throws Exception {
      AnnotationConfigWebApplicationContext context =
            new AnnotationConfigWebApplicationContext();
      context.register(AutoConfig.class);
      context.refresh();

      File base = new File(System.getProperty("java.io.tmpdir"));

      Tomcat tomcat = new Tomcat();
      /**
       * web项目
       * contextPath tomcat的访问路径
       * 项目的web目录
       *
       * 会调用相关的初始化实现类
       */
//    Context context1 = tomcat.addWebapp("/", base.getAbsolutePath());

      DispatcherServlet dispatcherServlet = new DispatcherServlet(context);

      Context context1 = tomcat.addContext("/", base.getAbsolutePath());
      //tomcat启动的过程中会调用DispatcherServlet中的init方法
      Tomcat.addServlet(context1,"my",dispatcherServlet).setLoadOnStartup(1);
      //spring web环境
      context1.addServletMappingDecoded("/","my");
//    context1.addServletMapping("/","my");

      //tomcat8
//    tomcat.setPort(8080);
//    tomcat.start();
//    tomcat.getServer().await();


      //tomcat9
      Server server = tomcat.getServer();
      Connector connector = new Connector("org.apache.coyote.http11.Http11NioProtocol");
      connector.setPort(8080);
      connector.setThrowOnFailure(true);
      tomcat.getService().addConnector(connector);
      tomcat.setConnector(connector);
      tomcat.start();
      server.await();
   }



}