org.apache.jasper.JasperException: Unable to compile class for JSPAn error occurred at line: -1 in the jsp file: nullGenerated servlet error:
[javac] Compiling 1 source fileC:\Program Files\Apache Software Foundation\Tomcat 5.0\work\Catalina\localhost\jsp-examples\org\apache\jsp\dates\hi_jsp.java:7: cannot access java.lang.Object
bad class file: C:\Program Files\Java\jre1.5.0_06\lib\rt.jar(java/lang/Object.class)
class file has wrong version 49.0, should be 48.0
Please remove or make sure it appears in the correct subdirectory of the classpath.
public final class hi_jsp extends org.apache.jasper.runtime.HttpJspBase
^
1 error
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:127)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:351)
org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:415)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:458)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:552)
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)
刚开始学JSP,环境是jdk+tomcat
是不是JAVA版本的问题,该如何解决呢,请高手指点!
[javac] Compiling 1 source fileC:\Program Files\Apache Software Foundation\Tomcat 5.0\work\Catalina\localhost\jsp-examples\org\apache\jsp\dates\hi_jsp.java:7: cannot access java.lang.Object
bad class file: C:\Program Files\Java\jre1.5.0_06\lib\rt.jar(java/lang/Object.class)
class file has wrong version 49.0, should be 48.0
Please remove or make sure it appears in the correct subdirectory of the classpath.
public final class hi_jsp extends org.apache.jasper.runtime.HttpJspBase
^
1 error
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:127)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:351)
org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:415)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:458)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:552)
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)
刚开始学JSP,环境是jdk+tomcat
是不是JAVA版本的问题,该如何解决呢,请高手指点!
class file has wrong version 49.0, should be 48.0
============================================================
提示比较明显了,你换成把jdk换成1.4的试一下。
<head>
<title>First Page</title>
</head>
<body>
<h3>Today is:
<%= new java.util.Date() %>
</h3>
</body>
</html>怎么把JDK换成1.4的呢?
我是先装的JDK1.4,我觉得是在线升级成1.5的了,刚才装的TOMCAT5.0.
现在在CMD下看,JDK版本是1.4,但是好像每次启动TOMCAT后,自动选择的JDK是1.5的
你这样,把环境变量改掉,你先去C:\Program Files\Java\jre1.5.0_06\lib\rt.jar这个目录下找是不是存在这个rt.jar,这个其实就是所有jdk的run time,支持jdk1.5的所有的java基本方法,所以你要把这个路径添加到classpath中去,然后把以前那个jdk1.4的.jar的路径从classpath中删除。
--------------------------------------------------------------------------------Apache Tomcat/5.0.16感谢 Michael_javavb()
我再次设置后,还是不行啊,一直出现上面的页面!
--------------------------------------------------------------------------------Apache Tomcat/5.0.16