无法编译Servlet - 重新发布 [英] Can't compile Servlet - Repost

问题描述

我创建了一个java servlet程序名称dbsrv.java。我把它放在Tomcat 7.0 \webapps \ROOT \WEB-INF \ classes \ FirstServlet.java上，我也设置了servlet-api.jar的类路径，但是当我编译它时

 Microsoft Windows [版本 6 。 1 。 7601 ] 
版权所有（c） 2009  Microsoft Corporation。版权所有。 
 
 D：\ tomcat7 \webapps \dbsrv \web-inf \ class> javac -d。 dbsrv.java 
 dbsrv.java: 3 ：错误：包javax.servlet不存在
 import javax.servlet。*; 
 ^ 
 dbsrv.java: 4 ：错误：包javax.servlet.http不存在
 import javax.servlet.http 。*; 
 ^ 
 dbsrv.java: 8 ：错误：找不到符号
  public   class  dbsrv extends HttpServlet {
 ^ 
 symbol： class  HttpServlet 
 dbsrv.java: 29 ：错误：找不到符号
  public   void  doGet（HttpServletRequest req，HttpServletResponse res）抛出
 ServletException，IOException {
 ^ 
 symbol： class  HttpServletRequest 
 location： class  dbsrv 
 dbsrv.java: 29 ：错误：找不到符号
  public   void  doGet（HttpServletRequest req，HttpServletResponse res）抛出
 ServletException，IOException {
 ^ 
 symbol： class  HttpServletResponse 
 location： class  dbsrv 
 dbsrv.java: 29 ：错误：找不到符号
  public   void  doGet（HttpServletRequest req，HttpServletResponse res）抛出
 ServletException，IOException {
 
 ^ 
 symbol： class  ServletException 
 location： class  dbsrv 
 dbsrv.java: 57 ：错误：找不到符号
  public   void  doPost（HttpServletRequest req ，HttpServletResponse res）抛出
 ServletException，IOException {
 ^ 
 symbol： class  HttpServletRequest 
l ocation： class  dbsrv 
 dbsrv.java: 57 ：错误：找不到符号
  public   void  doPost（HttpServletRequest req，HttpServletResponse res）抛出
 ServletException，IOException {
 ^ 
符号： class  HttpServletResponse 
 location： class  dbsrv 
 dbsrv.java: 57 ：错误：找不到符号
  public   void  doPost（HttpServletRequest req，HttpServletResponse res）抛出
 ServletException，IOException {
 
 ^ 
 symbol： class  ServletException 
 location： class  dbsrv 
  9 个错误
 
 D： \\ tomcat7 \webapps \dbsrv \web-inf \class> 

解决方案

Cross Post：



编译代码时java：32：错误：非法表达式启动 [ ^ ]



你有没有按照建议有？

I have created a java servlet program name dbsrv.java. I put it on Tomcat 7.0\webapps\ROOT\WEB-INF\classes\FirstServlet.java and also I set the class path for servlet-api.jar but when I compile it

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

D:\tomcat7\webapps\dbsrv\web-inf\class>javac -d . dbsrv.java
dbsrv.java:3: error: package javax.servlet does not exist
import javax.servlet.*;
^
dbsrv.java:4: error: package javax.servlet.http does not exist
import javax.servlet.http.*;
^
dbsrv.java:8: error: cannot find symbol
public class dbsrv extends HttpServlet{
                           ^
  symbol: class HttpServlet
dbsrv.java:29: error: cannot find symbol
        public void doGet(HttpServletRequest req,HttpServletResponse res)throws
ServletException,IOException{
                          ^
  symbol:   class HttpServletRequest
  location: class dbsrv
dbsrv.java:29: error: cannot find symbol
        public void doGet(HttpServletRequest req,HttpServletResponse res)throws
ServletException,IOException{
                                                 ^
  symbol:   class HttpServletResponse
  location: class dbsrv
dbsrv.java:29: error: cannot find symbol
        public void doGet(HttpServletRequest req,HttpServletResponse res)throws
ServletException,IOException{

^
  symbol:   class ServletException
  location: class dbsrv
dbsrv.java:57: error: cannot find symbol
        public void doPost(HttpServletRequest req,HttpServletResponse res)throws
 ServletException,IOException{
                           ^
  symbol:   class HttpServletRequest
  location: class dbsrv
dbsrv.java:57: error: cannot find symbol
        public void doPost(HttpServletRequest req,HttpServletResponse res)throws
 ServletException,IOException{
                                                  ^
  symbol:   class HttpServletResponse
  location: class dbsrv
dbsrv.java:57: error: cannot find symbol
        public void doPost(HttpServletRequest req,HttpServletResponse res)throws
 ServletException,IOException{

 ^
  symbol:   class ServletException
  location: class dbsrv
9 errors

D:\tomcat7\webapps\dbsrv\web-inf\class>

解决方案

Cross Post:

while compiling code java:32: error: illegal start of expression[^]

have you followed the advice there?

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