Servlet3.1下的jsp访问servlet路径错误

注册的jsp访问TeacherLogonSerlvet的时候显示路径错误

//@WebServlet("/TeacherLogonServlet")
public class TeacherLogonServlet extends HttpServlet {

	protected void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		request.setCharacterEncoding("utf-8");
		String id = request.getParameter("uid");
		String pwd = request.getParameter("upwd");
		teacherLogin login = new teacherLogin(id,pwd);
		
		ITeacherService teacherService = new TeacherServiceImpl();
		boolean rs = teacherService.addTeacherLogin(login);
		if(!rs) {
			request.setAttribute("addError", "isError");
			request.getRequestDispatcher("logon.jsp").forward(request, response);
		}else {
			request.setAttribute("addError", "noError");
			request.getRequestDispatcher("logonSuccess.jsp").forward(request, response);
		}
	}

因为在Serlvet3.1下，我们需要在类的顶端配置web信息，否则jsp找不到servlet路径

```go
@WebServlet("/TeacherLogonServlet")
public class TeacherLogonServlet extends HttpServlet {

另外我复制了登陆的web配置信息进来，导致了tomcat启动失败，原因是路径重复了，两个serlvet都是登陆servlet的路径。还是萌新，经常犯这种低级错误，效率还是有点低。所以准备记录博客，最少让犯的错误不要重复。