1.Servlet

@WebServlet用在Servlet类上 要与 启动类上扫描注解 @ServletComponentScan 注解，一起使用。

1、创建servlet类
在

2、 @WebServlet``(name = ``"MyServlet"``, value = ``"/myServlet"``) 。其中name = ``"MyServlet"是类名，value = ``"/myServlet" 相当于,urlPatterns = "/my" 是访问路径。

package com.wzy.springbootweb02.servlet;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.annotation.*;
import java.io.IOException;
@WebServlet(name = "MyServlet", value = "/myServlet")//,urlPatterns = "/my"
public class MyServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        response.getWriter().write("111111");
    }
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    }
}

3、在启动类上面加上扫描注解 @ServletComponentScan``(basePackages = ``"com.wzy.springbootweb02.servlet"``) 扫描Servlet程序。

package com.wzy.springbootweb02;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.ServletComponentScan;
@ServletComponentScan(basePackages = "com.wzy.springbootweb02.servlet")
@SpringBootApplication
public class SpringbootWeb02Application {
    public static void main(String[] args) {
        SpringApplication.run(SpringbootWeb02Application.class, args);
    }
}