jsp数据库连接类错误 org.apache.jasper.JasperException: Unable to compile class for JSP

org.apache.jasper.JasperException: Unable to compile class for JSP: An error occurred at line: 7 in the generated java fileOnly a type can be imported. yhgl.connectDB resolves to a packageAn error occurred at line: 4 in the jsp file: /yonghuguanli/add.jspyhgl.connectDB cannot be resolved to a type1: <%@ page language="java" contentType="text/html; charset=gb2312" import="java.sql.*"%>2: <%@ page import="yhgl.connectDB" %>3: <%4: yhgl.connectDB db = new yhgl.connectDB();5: String psw = request.getParameter("psw");6: String name = request.getParameter("name");7: if(psw.equals(request.getParameter("conpsw")))An error occurred at line: 4 in the jsp file: /yonghuguanli/add.jspyhgl.connectDB cannot be resolved to a type1: <%@ page language="java" contentType="text/html; charset=gb2312" import="java.sql.*"%>2: <%@ page import="yhgl.connectDB" %>3: <%4: yhgl.connectDB db = new yhgl.connectDB();5: String psw = request.getParameter("psw");6: String name = request.getParameter("name");7: if(psw.equals(request.getParameter("conpsw")))Stacktrace:org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:93)org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:435)org.apache.jasper.compiler.Compiler.compile(Compiler.java:298)org.apache.jasper.compiler.Compiler.compile(Compiler.java:277)org.apache.jasper.compiler.Compiler.compile(Compiler.java:265)org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:564)org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:302)org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)javax.servlet.http.HttpServlet.service(HttpServlet.java:729)

 

note The full stack trace of the root cause is available in the Apache Tomcat/5.5.27 logs.