jsp相册管理系统

// 示例代码：设置文件上传大小限制
<%@ page import="javax.servlet.annotation.MultipartConfig" %>
<%@ page import="javax.servlet.annotation.MultipartConfigElement" %>

@MultipartConfig(
    fileSizeThreshold = 1024 * 1024 * 10, // 10 MB
    maxFileSize = 1024 * 1024 * 50,      // 50 MB
    maxRequestSize = 1024 * 1024 * 100   // 100 MB
)
public class UploadServlet extends HttpServlet {
    // ...
}

// 示例代码：正确设置图片路径
<img src="<%= request.getContextPath() %>/images/photo.jpg" alt="Photo">

// 示例代码：使用缓存提高性能
<%
    String cacheKey = "photo_" + photoId;
    BufferedImage cachedImage = (BufferedImage) application.getAttribute(cacheKey);
    if (cachedImage == null) {
        cachedImage = loadImageFromDatabase(photoId);
        application.setAttribute(cacheKey, cachedImage);
    }
%>
<img src="data:image/png;base64,<%= encodeImageToBase64(cachedImage) %>" alt="Photo">