以下是一个简单的JSP Servlet显示图片的实例：

1. 创建一个名为`ImageDisplayServlet`的Servlet类，继承自`HttpServlet`。

```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 ImageDisplayServlet extends HttpServlet {

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

// 设置内容类型为图片

response.setContentType("