SpringBoot--基础--6.1--servlet的3大组件--Servlet

SpringBoot–基础–6.1–servlet的3大组件–Servlet

代码位置

https://gitee.com/DanShenGuiZu/learnDemo/tree/mysql_mybaties_DB/springboot-learn/springboot-4

1、代码

1.1、结构

1.1、代码

Config

package fei.zhou.springboot4.business.config.servlet;

import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * 描述该类- JPA
 *
 * @author zhoufei
 * @class: Config
 * @date 2021/1/20 10:26
 * @Verson 1.0 -2021/1/20 10:26
 * @see
 */
@Configuration
public class Config {
	// 注册Servlet
	@Bean
	public ServletRegistrationBean myServlet() {
		ServletRegistrationBean registrationBean = new ServletRegistrationBean(
				new MyServlet(), "/todoMyServlet");
		registrationBean.setLoadOnStartup(1);
		return registrationBean;
	}
	
}

MyServlet

package fei.zhou.springboot4.business.config.servlet;

import java.io.IOException;

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

/**
 * 描述该类- JPA
 *
 * @author zhoufei
 * @class: MyServlet
 * @date 2021/1/20 10:28
 * @Verson 1.0 -2021/1/20 10:28
 * @see
 */
public class MyServlet extends HttpServlet {
	
	// 处理get请求
	@Override
	protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		this.doPost(req,resp);
	}
	
	@Override
	protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		System.out.println("我的servlet  的  doPost 方法执行");
		resp.getWriter().append("hello world ").close();
	}
}