即使 servlet-api.jar 在类路径中，也缺少 HttpServlet [重复]

Question

我正在尝试编译一个简单的 servlet，但我遇到了一个异常，即 HttpServlet 以及其他类都丢失了。请注意，我包括 servlet-api.jar。我在这里错过了什么？

jdk1.8.0.05/bin/javac -cp "/usr/share/tomcat7/lib/servlet-api.jar" StockLookup.java

StockLookup.java:4: error: package javax.servlet.html does not exist
import javax.servlet.html.*;
^

StockLookup.java:8: error: cannot find symbol
public class StockLookup extends HttpServlet {
                                 ^
  symbol: class HttpServlet

StockLookup.java:10: error: cannot find symbol
public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
                   ^
  symbol:   class HttpServletRequest
  location: class StockLookup

StockLookup.java:10: error: cannot find symbol
public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
                                               ^
  symbol:   class HttpServletResponse
  location: class StockLookup

Answer 1

您正在导入一个不存在的包...

应该是

import javax.servlet.http.*;