我配置好了JDK,TOMCAT,tomcat的jsp-example下的示例程序都可以正常运行,可我的虚拟目录就不行!
我在tomcat的webapps目录中建立ccapp目录,下面另建立WEB-INF目录,下面有web.xml文件,内容如下:
<?xml version="1.0" encoding="ISO-8859-1"?><web-app xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
version="2.4"> <description>
This is ccapp.
</description>
<display-name>JSP by cc</display-name>
</web-app>ccapp目录下的jsp文件为index.jsp,内容如下:
<html>
<head>
<title>Hi-JSP实验</title>
</head>
<body>
<%
String Msg = "This JSP test.";
out.print("Hello World!");
%>
<h2><%=Msg%></h2>
</body>
</html> 可是,重启tomcat服务器后,运行页面显示如下错误:
type Exception reportmessage 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
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:97)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:346)
org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:414)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:472)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
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 Unable to find a javac compiler;
com.sun.tools.javac.Main is not on the classpath.
Perhaps JAVA_HOME does not point to the JDK
org.apache.tools.ant.taskdefs.compilers.CompilerAdapterFactory.getCompiler(CompilerAdapterFactory.java:106)
org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:935)
org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:764)
org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:382)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:472)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
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)
这怎么解决啊?
我都配置好了JAVA_HOME为E:\XPprogram\Java\jdk1.5.0_08,也有classpath:.;%JAVA_HOME%\lib\tools.jar;%JAVA_HOME%\lib\dt.jar;%JAVA_HOME%\bin
希望大虾出手帮忙!谢啦!
我在tomcat的webapps目录中建立ccapp目录,下面另建立WEB-INF目录,下面有web.xml文件,内容如下:
<?xml version="1.0" encoding="ISO-8859-1"?><web-app xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
version="2.4"> <description>
This is ccapp.
</description>
<display-name>JSP by cc</display-name>
</web-app>ccapp目录下的jsp文件为index.jsp,内容如下:
<html>
<head>
<title>Hi-JSP实验</title>
</head>
<body>
<%
String Msg = "This JSP test.";
out.print("Hello World!");
%>
<h2><%=Msg%></h2>
</body>
</html> 可是,重启tomcat服务器后,运行页面显示如下错误:
type Exception reportmessage 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
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:97)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:346)
org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:414)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:472)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
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 Unable to find a javac compiler;
com.sun.tools.javac.Main is not on the classpath.
Perhaps JAVA_HOME does not point to the JDK
org.apache.tools.ant.taskdefs.compilers.CompilerAdapterFactory.getCompiler(CompilerAdapterFactory.java:106)
org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:935)
org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:764)
org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:382)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:472)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
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)
这怎么解决啊?
我都配置好了JAVA_HOME为E:\XPprogram\Java\jdk1.5.0_08,也有classpath:.;%JAVA_HOME%\lib\tools.jar;%JAVA_HOME%\lib\dt.jar;%JAVA_HOME%\bin
希望大虾出手帮忙!谢啦!
就是用的http://blog.csdn.net/10yue/archive/2004/10/31/160905.aspx中的jsp代码,还是相同的错误:(
是怎么回事哦?反正tomcat目录的所有示例都可以运行,就我找的那种简单的jsp示例不行:(没试过复杂的,呵呵
感觉他明显是找不到java的类库文件,我在环境变量里设置好了的嘛!
JAVA_HOME:E:\XPprogram\Java\jdk1.5.0_08
CLASSPATH:.;E:\XPprogram\Java\jdk1.5.0_08\lib\tools.jar;E:\XPprogram\Java\jdk1.5.0_08\lib\dt.jar;E:\XPprogram\Java\jdk1.5.0_08\bin
Path(最开头部分):.;E:\XPprogram\Java\jdk1.5.0_08\bin;怎么办啊?
JAVA_HOME为E:\XPprogram\Java\jdk1.5.0_08classpath;E:\XPprogram\Java\jdk1.5.0_08\libpath;E:\XPprogram\Java\jdk1.5.0_08\bin 还有,你最好单独安装JDK,我一般使用默认安装路径
另外,用tomcat自带的管理器查看一下,找到这个web应用了不,然后再查找错误的所在。
JAVA_HOME就是jdk的安装目录E:\XPprogram\Java\jdk1.5.0_08,嗨,我无语啦!再找哈,应该哪儿没有看到
如果想放到别的文件夹中
必须在config中修改相应设置