package we;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class HelloServlet extends HttpServlet{
public void service(HttpServletRequest req, HttpServletResponse rsp) {
String username = req.getParameter("username");
System.out.println("======="+username);
String password = req.getParameter("password");
System.out.println("======="+password);
}
}
xml代码
在WebContent/WEB-INF/web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5">
<!-- 对刚刚定义的servlet进行注册 -->
<servlet>
<!-- servlet-name的名字随便起一个，无需和定义的servlet类名一致 -->
<servlet-name>abc</servlet-name>
<!-- 定义的servlet类名的全路径 -->
<servlet-class>we.HelloServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>abc</servlet-name>
<!-- 接收什么请求 -->
<url-pattern>/login.do</url-pattern>
</servlet-mapping>
</web-app>
html代码
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>登录</title>
</head>
<body>
<form action="login.do">
用户名：<input type="text" name="username"/><br>
密码：<input type="password" name="password"/><br>
提交：<input type="submit"/>
</form>
</body>
</html>
访问路径：http:
