Servlet jsp当中给出一个doPost例子。

3.doGet，doPost和service的用法

1）doPost的实例

马克-to-win:我们看到了doGet的用法。这节，我们看看doPost的用法。在Eclipse下，点击你项目名称左边的小十字符号，找到WebContent，右击它。New/HTML File:

eclipse会为我们生成一个空的html。我们再加入一些代码，成为：

例：3.3.1

hello.html：

METHOD="POST">
First Name:


Shipping Address:


Credit Card:

VALUE="Visa">Visa

VALUE="Master Card">Master Card

更改一下我们的ServletHello1.java,成为:

package com;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class ServletHello1 extends HttpServlet {undefined
    protected void doPost(HttpServletRequest request,
            HttpServletResponse response) throws IOException {undefined
            String fn=request.getParameter("firstName");
            String ad=request.getParameter("address");
            String ct=request.getParameter("cardType");
            PrintWriter pw=response.getWriter();
            pw.println(fn+"  "+ad+"  "+ct);
    }
}

更多内容请见原文，原文转载自：https://blog.csdn.net/qq_44594371/article/details/103155497