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  • Servlet 01: 创建Servlet的两种方式

    第一种创建方式:

    1.  在Java Resources/src中, 创建一个Package: com.Jasper2003.servlet

    2.

     

         

     3.  核心代码

    @WebServlet("/RegisterServlet")  // 路径名(默认和类名保持一致)
    public
    class RegisterServlet extends HttpServlet { protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.getWriter().append("Served at: ").append(request.getContextPath()); } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request, response); } }

    如果将路径名改为:  @WebServlet("/register_do"), 则:

     第二种创建方式:

     在类中添加代码:

    package com.Jasper2003.servlet;
    
    import java.io.IOException;
    
    import javax.servlet.ServletException;
    import javax.servlet.annotation.WebServlet;
    import javax.servlet.http.HttpServlet;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    
    @WebServlet("/demo_do")
    public class DemoServlet extends HttpServlet{
        @Override
        protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
            resp.getWriter().append("I'm doGet method!");
        }
        
        @Override
        protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
            resp.getWriter().append("I'm doPost method!");
        }
        
    }

    效果:

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  • 原文地址:https://www.cnblogs.com/JasperZhao/p/13494112.html
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