springboot使用servlet组件实现web请求

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转载最新推荐文章于 2026-03-19 00:33:26 发布 601 阅读 AI 写同款· GEO 优化 ›

springboot 配置 servlet 三大组件（Servlet、Filter、Listener） Servlet、Filter、Listener 是 JavaEE Web 服务规定的服务器动态组件，由开发者编写，由 Web 容器创建，并保证单例以及线程安全性，其中加载顺序为 Linstener —> Fliter —> Servlet 。阅读详情

package com.itcast.servlet;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebServlet(urlPatterns = "/my/servlet")
public class MyServlet  extends HttpServlet {


    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        resp.getWriter().print("hello springboot Servlet!");
    }
}

package com.itcast;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.ServletComponentScan;
import org.springframework.context.annotation.ComponentScan;

@SpringBootApplication
@ComponentScan(basePackages = "com.itcast")
@ServletComponentScan(basePackages = "com.itcast.servlet")
public class APP {

    public static void main(String[] args) {
    SpringApplication springApplication = new SpringApplication(APP.class);
        springApplication.run(args);
    }


}