简单问题
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
public class SimpleServlet extends HttpServlet {
public void doGet(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
PrintWriter pw = resp.getWriter();
pw.print("<html><body>Hello world!</body></html>");
pw.close();
}
}
为什么编译不通过
提示:
SimpleServlet.java:3: 包 javax.servlet 不存在
import javax.servlet.*;