在Tomcat下JSP、Servlet和JavaBean环境的配置

my__new__future

臧圩人
    我遇到了一个问题，想请教一下。
   在tomcat下我能够成功的发布网页，包含servlet和.htm
但是有些网页却不能发布（修改了servlet，添加了一些新的东西，比如连接池），出现HTTP Status 404错误，是否是不支持某些东西

massfish

tomcat/common/lib目录下有

hoykencn

感谢臧老大的精华贴啊，我原本中断的TOMCAT昨天晚上又重新安装了，我用打印时间的测试页可以运行出来，但是我写的个简单的代码<%
for(int i=100;i>=0;i--)
{
    %>
    <%=i %> bottles of beer on the wall.<br>
   <&
  }
    %>
结果出现了错误：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

An error occurred at line: -1 in the jsp file: null

Generated servlet error:
    [javac] Compiling 1 source file

C:\Tomcat\work\Standalone\localhost\myapp\myfirst_jsp.java:51: 'catch' without 'try'
    } catch (Throwable t) {
      ^
C:\Tomcat\work\Standalone\localhost\myapp\myfirst_jsp.java:30: 'try' without 'catch' or 'finally'
    try {
    ^
C:\Tomcat\work\Standalone\localhost\myapp\myfirst_jsp.java:61: '}' expected
^
3 errors


        at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:85)
        at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:248)
        at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:315)
        at org.apache.jasper.compiler.Compiler.compile(Compiler.java:328)
        at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:427)
        at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:142)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:240)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:187)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:809)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:200)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:146)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:209)
        at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:144)
        at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
        at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2358)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:133)
        at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
        at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:118)
        at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:116)
        at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:127)
        at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
        at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:152)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
        at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
        at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
        at java.lang.Thread.run(Thread.java:534)



--------------------------------------------------------------------------------

Apache Tomcat/4.1.31                   我用的JDK是1.4.2.08，在下不胜感激，我已经安错不知多少回了，累死我了！

hoykencn

那个打印时间的代码是<html><body><center>
Now time is: <%=new java.util.Date()%>
</center></body></html> ，怎么它运行得蛮好的，就是上面的一个不行咧？？？？

hoykencn

不好意思，自己检查了半天，终于检出来是自己的笔误!

vike

怎么引入java.spl包
求教
毕业设计
C:\WTK22\apps\WeatherServlet\src\WeatherServlet.java:4: package javax.servlet does not exist
import javax.servlet.*;
^
C:\WTK22\apps\WeatherServlet\src\WeatherServlet.java:5: package javax.servlet.http does not exist
import javax.servlet.http.*;
^
C:\WTK22\apps\WeatherServlet\src\WeatherServlet.java:9: cannot resolve symbol
symbol  : class HttpServlet
location: class WeatherServlet
public class WeatherServlet extends HttpServlet{
                                     ^
C:\WTK22\apps\WeatherServlet\src\WeatherServlet.java:14: cannot resolve symbol
symbol  : class HttpServletRequest
location: class WeatherServlet
  public void doGet(HttpServletRequest request,
                    ^
C:\WTK22\apps\WeatherServlet\src\WeatherServlet.java:15: cannot resolve symbol
symbol  : class HttpServletResponse
location: class WeatherServlet
                    HttpServletResponse response)
                    ^
C:\WTK22\apps\WeatherServlet\src\WeatherServlet.java:16: cannot resolve symbol
symbol  : class ServletException
location: class WeatherServlet
      throws IOException, ServletException {
                          ^
C:\WTK22\apps\WeatherServlet\src\WeatherServlet.java:23: cannot resolve symbol
symbol  : class ServletException
location: class WeatherServlet
      throw new ServletException("Unable to load JDBC driver";
                ^
C:\WTK22\apps\WeatherServlet\src\WeatherServlet.java:47: cannot resolve symbol
symbol  : class ServletConfig
location: class WeatherServlet
      ServletConfig config = getServletConfig();
      ^
C:\WTK22\apps\WeatherServlet\src\WeatherServlet.java:47: cannot resolve symbol
symbol  : method getServletConfig ()
location: class WeatherServlet
      ServletConfig config = getServletConfig();
                             ^
C:\WTK22\apps\WeatherServlet\src\WeatherServlet.java:48: cannot resolve symbol
symbol  : class ServletContext
location: class WeatherServlet
      ServletContext context = config.getServletContext();
      ^
C:\WTK22\apps\WeatherServlet\src\WeatherServlet.java:49: cannot resolve symbol
symbol  : class RequestDispatcher
location: class WeatherServlet
      RequestDispatcher rd = context.getRequestDispatcher(nextJSP);
      ^
C:\WTK22\apps\WeatherServlet\src\WeatherServlet.java:53: cannot resolve symbol
symbol  : class ServletException
location: class WeatherServlet
      throw new ServletException("SQL call failed";
                ^
C:\WTK22\apps\WeatherServlet\src\WeatherServlet.java:56: cannot resolve symbol
symbol  : class ServletException
location: class WeatherServlet
      throw new ServletException(e.getMessage());
                ^
C:\WTK22\apps\WeatherServlet\src\WeatherServlet.java:64: cannot resolve symbol
symbol  : class ServletException
location: class WeatherServlet
          throw new ServletException("connection close failed";
                    ^
14 errors


为什么会出现那么多错误
请高手多多指教

vike

C:\WTK22\apps\WeatherServlet\src\WeatherServlet.java:17: cannot resolve symbol
symbol  : class Connection
location: class WeatherServlet
    Connection conn = null;
    ^
C:\WTK22\apps\WeatherServlet\src\WeatherServlet.java:30: cannot resolve symbol
symbol  : variable DriverManager
location: class WeatherServlet
      conn = DriverManager.getConnection(dbURL);
             ^
C:\WTK22\apps\WeatherServlet\src\WeatherServlet.java:32: cannot resolve symbol
symbol  : class Statement
location: class WeatherServlet
      Statement stmt = conn.createstatement();
      ^
C:\WTK22\apps\WeatherServlet\src\WeatherServlet.java:36: cannot resolve symbol
symbol  : class ResultSet
location: class WeatherServlet
      ResultSet rs = stmt.executeQuery(query);
      ^
C:\WTK22\apps\WeatherServlet\src\WeatherServlet.java:52: cannot resolve symbol
symbol  : class SQLException
location: class WeatherServlet
    catch (SQLException e) {
           ^
C:\WTK22\apps\WeatherServlet\src\WeatherServlet.java:63: cannot resolve symbol
symbol  : class SQLException
location: class WeatherServlet
        catch (SQLException e) {
               ^
6 errors

Process completed.
把 servlet don't exist解决了
怎么又出现这种问题
请教臧老大

vike

在j2me中的toolbar运行
为什么出现C:\WTK22\apps\WeatherServlet\src\WeatherServlet.java:4: package javax.servlet does not exist
import javax.servlet.*;
^
C:\WTK22\apps\WeatherServlet\src\WeatherServlet.java:5: package javax.servlet.http does not exist
import javax.servlet.http.*;
^
可是在JCreator下不出现package javax.servlet does not exist
？？？？？？？？？？？？？？？？？？？？？？？/

臧圩人

j2me的偶不太清楚，偶不做j2me编程

不过原理是一样的，既然出现了package javax.servlet does not exist
还是某个应该地方的设置出了问题

vike

一般是那里的设置问题呢?
请提示一下，臧圩人。
不胜感激！！！！！！！！！！