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  User: HASEE
  Date: 2021/10/21
  Time: 17:41
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<%@ page contentType="text/html;charset=UTF-8" language="java" %>


    
    



    

        

            
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<%@ page contentType="text/html;charset=UTF-8" language="java" %>


    
    


   
欢迎<%=request.getParameter("userName")%>登录

<%@ page contentType="text/html;charset=UTF-8" language="java" %>


    


   
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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 ("/MyServletProject")
public class MyServletProject extends HttpServlet {

    public MyServletProject() {
    }

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

        String userName= (String) req.getParameter("userName");
        String passWord= (String) req.getParameter("passWord");
        String myUser="text";
        String myPassWord="123";
        System.out.println(userName+passWord);
        if ( userName.equals(myUser)&&passWord.equals(myPassWord))
        {
//            请求转发，重新定向
            resp.sendRedirect("success.jsp?userName="+userName);
        }
        else {
//            请求转发
            req.getRequestDispatcher("file.jsp").forward(req,resp);

        }
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
       doGet(req,resp);
    }
}

提示：这里对文章进行总结：
例如：以上就是今天要讲的内容，本文仅仅简单介绍了pandas的使用，而pandas提供了大量能使我们快速便捷地处理数据的函数和方法。