org.apache.jasper.JasperException: 无法为JSP编译类:

org.apache.jasper.JasperException: 无法为JSP编译类:

JSP文件：[/news.jsp] 的第 [68] 行发生了一个错误
The type javax.servlet.http.HttpServletRequest cannot be resolved. It is indirectly referenced from required .class files
65: <%
66: String sql = "select * from news where type='新闻' order by id desc";
67: String url ="/sushiwebshop/news.jsp?1=1";
68: PageManager pageManager = PageManager.getPage(url,10, request);
69: pageManager.doList(sql);
70: PageManager bean= (PageManager)request.getAttribute("page");
71: ArrayList newslist=(ArrayList)bean.getCollection();

JSP文件：[/news.jsp] 的第 [68] 行发生了一个错误
The method getPage(String, int, HttpServletRequest) from the type PageManager refers to the missing type HttpServletRequest
65: <%
66: String sql = "select * from news where type='新闻' order by id desc";
67: String url ="/sushiwebshop/news.jsp?1=1";
68: PageManager pageManager = PageManager.getPage(url,10, request);
69: pageManager.doList(sql);
70: PageManager bean= (PageManager)request.getAttribute("page");
71: ArrayList newslist=(ArrayList)bean.getCollection();

Stacktrace:
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:102)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:213)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:498)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:397)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:367)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:351)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:603)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:399)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:380)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:328)
jakarta.servlet.http.HttpServlet.service(HttpServlet.java:777)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)