代码没有错，tomcat就是编译不了。一直报错。
Unable to compile class for JSP:
An error occurred at line: [15] in the generated java file: [E:\Java web\apache-tomcat-8.5.43\work\Catalina\localhost\shixunzy2\org\apache\jsp\buyForm_jsp.java]
Only a type can be imported. vo.Book resolves to a package
An error occurred at line: [14] in the jsp file: [/buyForm.jsp]
Book cannot be resolved to a type
11: <%
12: String bookno=request.getParameter("bookno");
13: HashMap allbook=(HashMap)session.getAttribute("allbook");
14: Book book=(Book)allbook.get(bookno);
15: %>
16: 娆㈣繋璐拱<%=book.getBookname() %>
17:
An error occurred at line: [14] in the jsp file: [/buyForm.jsp]
Book cannot be resolved to a type
11: <%
12: String bookno=request.getParameter("bookno");
13: HashMap allbook=(HashMap)session.getAttribute("allbook");
14: Book book=(Book)allbook.get(bookno);
15: %>
16: 娆㈣繋璐拱<%=book.getBookname() %>
17:
Stacktrace:
at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:102)
at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:212)
at org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:549)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:378)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:350)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:334)
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:595)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:399)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:386)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:330)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:660)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:798)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:808)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1498)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)
