困扰了很久的问题了：The server encountered an internal error () that prevented it from...

[yeah_aly]

type Exception report

message

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

exception

org.apache.jasper.JasperException: javax.servlet.ServletException: java.lang.UnsupportedClassVersionError: Bad version number in .class file
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:491)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:401)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)


root cause

javax.servlet.ServletException: java.lang.UnsupportedClassVersionError: Bad version number in .class file
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:862)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:791)
org.apache.jsp.displayBooks_jsp._jspService(displayBooks_jsp.java:90)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:377)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)


root cause

java.lang.UnsupportedClassVersionError: Bad version number in .class file
java.lang.ClassLoader.defineClass1(Native Method)
java.lang.ClassLoader.defineClass(Unknown Source)
java.security.SecureClassLoader.defineClass(Unknown Source)
java.net.URLClassLoader.defineClass(Unknown Source)
java.net.URLClassLoader.access$100(Unknown Source)
java.net.URLClassLoader$1.run(Unknown Source)
java.security.AccessController.doPrivileged(Native Method)
java.net.URLClassLoader.findClass(Unknown Source)
java.lang.ClassLoader.loadClass(Unknown Source)
java.lang.ClassLoader.loadClass(Unknown Source)
sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
java.lang.ClassLoader.loadClass(Unknown Source)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1399)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1329)
org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:128)
org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:66)
java.lang.ClassLoader.loadClassInternal(Unknown Source)
java.lang.Class.forName0(Native Method)
java.lang.Class.forName(Unknown Source)
org.apache.jsp.displayBooks_jsp._jspService(displayBooks_jsp.java:61)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:377)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)


note The full stack trace of the root cause is available in the Apache Tomcat/6.0.24 logs.


大侠们这个怎么解决啊~

[Java技术栈]

tomcat出问题了 重装下看解决问题

[zhaoxinwei0706]

你试试把tomcat里的wook文件夹删除

[焙焙龙]

jdk或者jre的版本与你工程里面的类或者引用的类库不兼容
将环境参数发出来看看，你将得到更多的帮助

[qiheia]

你的编译环境设置问题。。

具体怎么设置参考下面的吧
http://student.csdn.net/space.php?uid=252488&do=blog&id=29183

[xiejjava_hb]

把tomcat和java的jdk都重新安装哈试试看看

[superjava_2006]

org.apache.jasper.JasperException: javax.servlet.ServletException: java.lang.UnsupportedClassVersionError: Bad version number in .class file


JDK版本问题，换个试试

[Ansonppp]

org.apache.jasper.JasperException: javax.servlet.ServletException: java.lang.UnsupportedClassVersionError: Bad version number in .class file
这个错误已经指出是版本问题。就像上面说的，可以考虑Tomcat重装

[yeah_aly]

谢谢各位了，JDK版本的问题，我换了JDK1.6，问题解决了。

[tongjm2009]

Bad version number in .class file

JDK问题！

[zktbduandd]

100%是jdk版本问题