1.建一个类，获取用
package com.yin;
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 {
//System.out.println("进入这个请求");
//处理请求
String username=req.getParameter("username");
String password=req.getParameter("password");
System.out.println(username+":"+password);
resp.sendRedirect("/response1_war/success.jsp");
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
super.doGet(req, resp);
}
}
2.修改INDEX.JSP用它来录入用户名密码。
<html>
<body>
<h2>Servlet Demo!</h2>
<%--这里提交的路径，需要寻找到项目路径--%>
<%--${pageContext.request.contextPath}代表当前项目--%>
<form action="${pageContext.request.contextPath}/login" method="get">
用户名：<input type="text" name="username"><br>
密码：<input type="password" name="password"><br>
<input type="submit">
</form>
</body>
</html>
3. .web.xml里面加入加入
<servlet>
<servlet-name>request</servlet-name>
<servlet-class>com.yin.RequestTest</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>request</servlet-name>
<url-pattern>/login</url-pattern>
</servlet-mapping>
4.sucess网页用来验证
<html> <body> <h2>Success!</h2> </body> </html>
标签：用户名,resp,req,javax,密码,import,servlet,Response From： https://www.cnblogs.com/insoon/p/17052930.html