下面是一个简单的例子,展示如何在JSP页面中通过Servlet来显示一个弹窗。
我们创建一个名为 `ShowAlertServlet` 的Servlet类:

```java
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 ShowAlertServlet extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 设置响应内容类型
response.setContentType("







