最新的IntelliJ IDEA版本不提供用于创建servlet、侦听器和过滤器的默认模板。但是，您可以自己定义这些模板。
粘贴以下代码作为模板体：

#if (${PACKAGE_NAME} && ${PACKAGE_NAME} != "")package ${PACKAGE_NAME};#end
#parse("File Header.java")

import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.annotation.*;
import java.io.IOException;

@WebServlet(name = "${Class_Name}", value = "/${Class_Name}")
public class ${Class_Name} extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

    }

    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

    }
}

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下Settings/Preferences | Editor | File and Code Templates
更多信息请访问https://www.jetbrains.com/help/idea/creating-and-configuring-web-application-elements.html#elements-templates