java - 错误 : javax. servlet 不存在

Question

我已经检查了几乎所有可能出现的错误的帖子。我编辑了在线给出的几乎所有环境变量。这些是我的环境变量:

ANT_HOME = C:\Ant9;C:\Tomcat7\lib\servlet-api.jar

CLASSPATH = C:\Program Files\Java\jdk1.6.0_24\bin;C:\Program Files\Java\jre6\bin;C:\Tomcat7\lib\servlet-api。 jar ；.

JAVA_HOME = C:\Program Files\Java\jdk1.6.0_24

路径 = C:\Program Files\Java\jdk1.6.0_24\bin

TOMCAT_HOME = C:\Tomcat7

C:\Tomcat7\webapps\DBConnection\WEB_INF\classes\DBConnection>javac -cp .,C:\Tomc
at7\lib\servlet-api.jar DBConnnection.java
DBConnnection.java:4: package javax.servlet does not exist
import javax.servlet.*;
^
DBConnnection.java:5: package javax.servlet.http does not exist
import javax.servlet.http.*;
^
DBConnnection.java:11: cannot find symbol
symbol: class HttpServlet
public class DBConnnection extends HttpServlet
                                   ^
DBConnnection.java:14: cannot find symbol
symbol  : class HttpServletRequest
location: class DBConnection.DBConnnection
  public void doGet(HttpServletRequest request, HttpServletResponse response) th
rows ServletException, IOException
                    ^
DBConnnection.java:14: cannot find symbol
symbol  : class HttpServletResponse
location: class DBConnection.DBConnnection
  public void doGet(HttpServletRequest request, HttpServletResponse response) th
rows ServletException, IOException
                                                ^
DBConnnection.java:14: cannot find symbol
symbol  : class ServletException
location: class DBConnection.DBConnnection
  public void doGet(HttpServletRequest request, HttpServletResponse response) th
rows ServletException, IOException

     ^
DBConnnection.java:53: cannot find symbol
symbol  : class EmployeeInformation
location: class DBConnection.DBConnnection
                    EmployeeInformation empInfo = new EmployeeInformation();
                    ^
DBConnnection.java:53: cannot find symbol
symbol  : class EmployeeInformation
location: class DBConnection.DBConnnection
                    EmployeeInformation empInfo = new EmployeeInformation();
                                                      ^
DBConnnection.java:13: method does not override or implement a method from a sup
ertype
  @Override
  ^
9 errors

我真的很困惑如何继续!一直卡在这一点!!

Answer 1

您应该使用 ; 来分隔 Windows 中的类路径条目

javac -cp .;C:\Tomcat7\lib\servlet-api.jar DBConnnection.java.

但是，您使用了逗号,。将逗号更改为分号

注意:*nix 系列环境使用冒号 : 分隔类路径条目