Eclipse 中缺少 Web 项目的 "Run on Server" 选项

Question

我刚开始学习Java。我必须创建在 h1 中显示“Hello Servlet”文本的 servlet“Test Servlet”。但是当我创建新的动态 Web 项目并添加一些雅加达导入和

response.getWriter().println("<p>Hello Servlet</p>");

toGet（我希望在正确的位置）我不能运行因为当我选择“外部工具 -> 运行作为”时我没有选项“运行在服务器上”：/我只有“（none 适用）。在我开始之前，我添加了 Tomcat 并且我有文件夹“Servers”，所以我不知道如何解决这个问题来完成我的任务. 请帮忙 :<

package testservlet;

import java.io.IOException;
import jakarta.servlet.ServletException;
import jakarta.servlet.annotation.WebServlet;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;

/**
 * Servlet implementation class HelloServlet
 */
@WebServlet("/HelloServlet")
public class HelloServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;

    /**
     * Default constructor. 
     */
    public HelloServlet() {
        // TODO Auto-generated constructor stub
    }

    /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 
        response.getWriter().println("<p>Hello Servlet</p>");
        // TODO Auto-generated method stub
        response.getWriter().append("Served at: ").append(request.getContextPath());
    }

    /**
     * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        doGet(request, response);
    }

}

Answer 1

通常您会右键单击项目，运行 As ... 运行在服务器上。假设您在服务器视图中定义了一个服务器，它将为您提供 select 的选项（或创建一个）

如果此选项不可见，请检查您是否安装了“Eclipse IDE for Enterprise Java and Web Developers”，而不是“Eclipse IDE for Java Developers " https://www.eclipse.org/downloads/packages/

Eclipse 中缺少 Web 项目的 "Run on Server" 选项

Missing "Run on Server" option for Web project in Eclipse

java

servlets

server

runas