以下是一个简单的jsp登录界面的Servlet实现示例：

```java

jsp登录界面servlet怎么写实例，jsp登录界面Servlet编写实例 第1张

import java.io.IOException;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

public class LoginServlet extends HttpServlet {

private static final long serialVersionUID = 1L;

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

// 获取用户名和密码

String username = request.getParameter("