2023的idea鼠标右键是没有Servlet，所以需要我们手动添加

一、添加Servlet

1、点击File->Settings

 2、展开Editor，单击File and Code Templates，选择Files

 3、单击+号，修改Name和File name为Servlet，复制以下代码块粘贴到idea

#if (${PACKAGE_NAME} && ${PACKAGE_NAME} != "")package ${PACKAGE_NAME};#end
#parse("File Header.java")
 
import java.io.*;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
 
@WebServlet("/${Class_Name}")
public class ${Class_Name} extends HttpServlet {

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

	}
}

4、粘贴完点击OK就行了 

二、检查添加是否成功（新建Servlet）

1、选中src鼠标右键，单击New->Servlet

2、设置Servler类名 

3、完成添加