IDEA上servlet的创建和部署

伪代码流程 ----> 继承HttpServlet -----> 重写init,doGet,destory

使用WebServlet注解部署到tomcat容器

使用注解部署可以免去web.xml里配置

---

@WebServlet(name = "index",value = "/index")
public class MyServlet extends HttpServlet {

    private String message;

    @Override
    public void init() throws ServletException {
        message = "Hello index";
    }

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        resp.setContentType("text/html");
        PrintWriter out = resp.getWriter();
        out.println("<h1>" + message + "</h1>");
    }

    @Override
    public void destroy() {
        super.destroy();
    }
}

启动tomcat容器，访问/index 即可

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上篇，如何一键在IDEA部署servlet web项目和tomcat容器
https://www.cnblogs.com/24cuo/p/16524258.html