需要在springboot的启动类Webapplication上加上注解，对指定包进行扫描：


@ServletComponentScan("com.bjpowernode.springboot.servlet")


com.bjpowernode.springboot.servlet是包的全名，servlet文件所在的包。


servlet类上需要加上注解，配置映射路径，才能被解析：


@WebServlet(urlPatterns = "/myservlet")



完整代码示例：


package com.bjpowernode.springboot.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 = "/myservlet") public class MyServlet extends HttpServlet {     @Override     protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {         response.getWriter().println("my springboot servlet……测试中文输出");         response.getWriter().flush();         response.getWriter().close();      }      @Override     protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {         doGet(request,response);     } }


启动类的代码：


package com.bjpowernode.springboot;  import org.mybatis.spring.annotation.MapperScan; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.boot.web.servlet.ServletComponentScan; import org.springframework.transaction.annotation.EnableTransactionManagement;  @SpringBootApplication @MapperScan("com.bjpowernode.springboot.mapper") //取代在mapper接口上配置的@Mapper @ServletComponentScan("com.bjpowernode.springboot.servlet")//扫描Servlet包 @EnableTransactionManagement //开启事务支持 public class WebApplication {      public static void main(String[] args) {         SpringApplication.run(WebApplication.class, args);     }  }