package com.xxx.secondboot.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 TestServlet extends HttpServlet {
  
  private static final long serialVersionUID = -4619665430596950563L;

  @Override
  protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    System.out.println("zhaojigang servlet");
  }

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

package com.xxx.secondboot.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 TestServlet2 extends HttpServlet {

  private static final long serialVersionUID = 3788279972938793265L;

  @Override
  protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    System.out.println("zhaojigang servlet2");
  }

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

package com.xxx.secondboot.servlet;

import org.springframework.boot.context.embedded.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class ServletConfig {
  
  @Bean
  public TestServlet testServlet(){
    return new TestServlet();
  }
  
  @Bean
  public ServletRegistrationBean testServletRegistrationBean(TestServlet testServlet){
    ServletRegistrationBean registration = new ServletRegistrationBean(testServlet);
    registration.setEnabled(true);
    registration.addUrlMappings("/servlet/test");
    return registration;
  }
  /********************************************/
  @Bean
  public TestServlet2 testServlet2(){
    return new TestServlet2();
  }
  
  @Bean
  public ServletRegistrationBean test2ServletRegistrationBean(TestServlet2 testServlet2){
    ServletRegistrationBean registration = new ServletRegistrationBean(testServlet2);
    registration.setEnabled(true);
    registration.addUrlMappings("/servlet/test2");
    return registration;
  }
  
}