求助org.apache.jasper.JasperException: Unable to compile class for JSP
test.jsp
<%@ page contentType="text/html;charset=GB2312" %>
<%@ page import="org.jfree.chart.JFreeChart"%>
<%@ page import="org.jfree.chart.ChartUtilities"%>
<%@ page import="org.jfree.chart.ChartFactory"%>
<%@ page import="org.jfree.data.general.DefaultPieDataset"%>
<html>
<body>
<%
String dataName[]=new String[]{"0-30岁","30-50岁","50-70岁","70岁以上"};//显示数据系列
int dataValueCount[]={4,5,4,6};//数据系列对应的值
//------创建数据集,并设置值------
DefaultPieDataset pieDataset = new DefaultPieDataset();
for(int i=0;i<dataName.length;i++)
pieDataset.setValue(dataName[i],dataValueCount[i]);
String titleString="用户年龄阶段分布统计图";//图的标题
JFreeChart chart = ChartFactory.createPieChart(titleString,pieDataset,true,true,false);
ChartUtilities.writeChartAsJPEG(response.getOutputStream(),chart,500,300);
%>
</body>
</html>
}
错误提示
HTTP Status 500 -
--------------------------------------------------------------------------------
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: Unable to compile class for JSP
Generated servlet error:
Only a type can be imported. org.jfree.chart.JFreeChart resolves to a package
Generated servlet error:
Only a type can be imported. org.jfree.chart.ChartUtilities resolves to a package
Generated servlet error:
Only a type can be imported. org.jfree.chart.ChartFactory resolves to a package
Generated servlet error:
Only a type can be imported. org.jfree.data.general.DefaultPieDataset resolves to a package
An error occurred at line: 8 in the jsp file: /pieChart.jsp
Generated servlet error:
DefaultPieDataset cannot be resolved to a type
An error occurred at line: 8 in the jsp file: /pieChart.jsp
Generated servlet error:
DefaultPieDataset cannot be resolved to a type
An error occurred at line: 8 in the jsp file: /pieChart.jsp
Generated servlet error:
JFreeChart cannot be resolved to a type
An error occurred at line: 8 in the jsp file: /pieChart.jsp
Generated servlet error:
ChartFactory cannot be resolved
An error occurred at line: 8 in the jsp file: /pieChart.jsp
Generated servlet error:
ChartUtilities cannot be resolved
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
root cause
org.apache.jasper.JasperException: Unable to compile class for JSP
Generated servlet error:
Only a type can be imported. org.jfree.chart.JFreeChart resolves to a package
Generated servlet error:
Only a type can be imported. org.jfree.chart.ChartUtilities resolves to a package
Generated servlet error:
Only a type can be imported. org.jfree.chart.ChartFactory resolves to a package
Generated servlet error:
Only a type can be imported. org.jfree.data.general.DefaultPieDataset resolves to a package
An error occurred at line: 8 in the jsp file: /pieChart.jsp
Generated servlet error:
DefaultPieDataset cannot be resolved to a type
An error occurred at line: 8 in the jsp file: /pieChart.jsp
Generated servlet error:
DefaultPieDataset cannot be resolved to a type
An error occurred at line: 8 in the jsp file: /pieChart.jsp
Generated servlet error:
JFreeChart cannot be resolved to a type
An error occurred at line: 8 in the jsp file: /pieChart.jsp
Generated servlet error:
ChartFactory cannot be resolved
An error occurred at line: 8 in the jsp file: /pieChart.jsp
Generated servlet error:
ChartUtilities cannot be resolved
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:84)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:328)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:414)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:297)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:276)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:264)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:563)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:303)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
note The full stack trace of the root cause is available in the Apache Tomcat/5.5.17 logs.
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Apache Tomcat/5.5.17
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配置
jdk1.5
Tomcat 5.5
请各位高人指点指点吧,毕业设计啊,好几天了一直报这个错误,先在此谢过了
上一个问题(org.apache.jasper.JasperException: /test.jsp(10,0) UseBean has invalid attribute: name
)忘了改分,不好意思啊,请多多帮忙啊