我在eclipse开发时能 启动我安装的tomcat能运行jsp项目 但是当我关闭myeclise时重新启动tomcat却不能运行

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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: Bad version number in .class file (unable to load class com.Manger)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)

root cause

java.lang.UnsupportedClassVersionError: Bad version number in .class file (unable to load class com.Manger)
org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1964)
org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:933)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1405)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1284)
org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:125)
org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:63)
java.lang.ClassLoader.loadClassInternal(Unknown Source)
java.lang.Class.getDeclaredConstructors0(Native Method)
java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
java.lang.Class.getConstructor0(Unknown Source)
java.lang.Class.newInstance0(Unknown Source)
java.lang.Class.newInstance(Unknown Source)
org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:144)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:321)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:308)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:259)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)

note The full stack trace of the root cause is available in the Apache Tomcat/5.5.33 logs.