<html> <body> <h2>Hello World!</h2> //pageContext.request.getContextPath()获取提交请求的当前地址，此处是当前地/login <form action="${pageContext.request.getContextPath()}/login" method="get"> 用户名：<input type="text" name="username"><br> 密 码：<input type="text" name="password"><br> <input type="submit"> </form> </body> </html>
<servlet>
<servlet-name>login</servlet-name>
<servlet-class>com.king.servlet.RequestTest</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>login</servlet-name>
<url-pattern>/login</url-pattern>
</servlet-mapping>
package com.king.servlet; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.IOException; public class RequestTest extends HttpServlet { @Override protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { //处理请求 String username = req.getParameter("username"); String password= req.getParameter("password"); System.out.println(username+":"+password); //重定向时候一定要注意，路径问题（404路径问题，500代码错误） resp.sendRedirect("/response_war/success.jsp"); } @Override protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { doGet(req, resp); } }
原文：https://www.cnblogs.com/CL-King/p/13770931.html