HTTP-500错误,求解决
在TOMCAT下运行JSP页面时出现的问题,请教

HTTP   Status   500   -  

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type   Exception   report

message  

description   The   server   encountered   an   internal   error   ()   that   prevented   it   from   fulfilling   this   request.

exception  

javax.servlet.ServletException:   Could   not   initialize   class   sun.font.FontManager
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:846)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:779)
org.apache.jsp.image_jsp._jspService(image_jsp.java:96)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)


root   cause  

java.lang.NoClassDefFoundError:   Could   not   initialize   class   sun.font.FontManager
sun.java2d.SunGraphicsEnvironment.addDirFonts(Unknown   Source)
sun.java2d.SunGraphicsEnvironment.registerFontsInDir(Unknown   Source)
sun.java2d.SunGraphicsEnvironment.access$200(Unknown   Source)
sun.java2d.SunGraphicsEnvironment$2.run(Unknown   Source)
java.security.AccessController.doPrivileged(Native   Method)
sun.java2d.SunGraphicsEnvironment. <init> (Unknown   Source)
sun.awt.Win32GraphicsEnvironment. <init> (Unknown   Source)
sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native   Method)
sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown   Source)
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown   Source)
java.lang.reflect.Constructor.newInstance(Unknown   Source)
java.lang.Class.newInstance0(Unknown   Source)
java.lang.Class.newInstance(Unknown   Source)
java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(Unknown   Source)
java.awt.image.BufferedImage.createGraphics(Unknown   Source)
java.awt.image.BufferedImage.getGraphics(Unknown   Source)
org.apache.jsp.image_jsp._jspService(image_jsp.java:67)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)


note   The   full   stack   trace   of   the   root   cause   is   available   in   the   Apache   Tomcat/5.0.30   logs.


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Apache   Tomcat/5.0.30

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原JSP代码为

<%@   page   contentType= "image/jpeg "%>
<%@