前端写了一个jsp页面，有表单，其中表单<form action="lib/SevletClass.java" method="post">，lib/SevletClass.java 为servlet程序所在的文件（看网上案例应该是lib/SevletClass？但我如果不带.java，系统会报错找不到源目标）

后端创建了SevletClass.java，放在web/lib目录下：
@WebServlet(name = "SevletClass", urlPatterns = /lib)
public class SevletClass extends HttpServlet{
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        System.out.println("GET :" + request.getParameter("name"));
        System.out.println("GET :" + request.getParameter("password"));
    }
    protected void doPost(HttpServletRequest request,
                          HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        String name = request.getParameter("name");
        String password = request.getParameter("password");
        System.out.println(name);
        System.out.println(password);
    }

在jsp上提交表单后，没执行servlet，而是现实了文件的源代码，出现如下地址：http://localhost:8080/CInfo_war_exploded/lib/SevletClass.java

请教是哪儿错了？
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