tomcat显示如下错误．请求帮助

[agoo]

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

No Java compiler was found to compile the generated source for the JSP.
This can usually be solved by copying manually $JAVA_HOME/lib/tools.jar from the JDK
to the common/lib directory of the Tomcat server, followed by a Tomcat restart.
If using an alternate Java compiler, please check its installation and access path.

org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:128)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:351)
org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:413)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:453)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:437)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:555)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:291)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)

我已经把tools.jar放在环境变量里面了，还把它复制到tomcat\common\lib目录下，可还是不行，请求得到大家的帮助

[wsk_228]

你的JAVA文件可能编译嘛

[Theface]

是说你的JDK 没有环境,自己再看看吧!

[riancoat]

Unable to compile class for JSP

你的tomcat没找到JDK环境.

你把tomcat删掉重新装一次然后定位到JDK就行了

你把tools.jar放到lib里面没用,它要的是java.exe和javac.exe

[风之子009]

换一个版本的jdk或tomcat