在 eclipse 中我创建了一个名为 Hello 的动态 Web 项目，然后创建了一个名为 Good 的 serverlet，编译运行，完全正常。代码如下：

package Hello;

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

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

    /** * @see HttpServlet#HttpServlet() */
    public Good() {
        super();
        // TODO Auto-generated constructor stub
    }

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

    /** * @see HttpServlet#doPut(HttpServletRequest,HttpServletResponse) */
    protected void doPut(HttpServletRequest request,IOException {
        // TODO Auto-generated method stub
    }

    /** * @see HttpServlet#doDelete(HttpServletRequest,HttpServletResponse) */
    protected void doDelete(HttpServletRequest request,IOException {
        // TODO Auto-generated method stub
    }

}

我是在Win7环境下运行的，在路径

C:\Users\Administrator\workspace\.Metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\Hello

找到 eclipse 临时部署的文件，把 Hello 文件夹复制到 centOS 的 /var/lib/tomcat/webapps 路径下即可。
输入 http://101.200.56.209:8080/Hello/Good 即可看到结果。

OK，到此为止，我已经知道在 centOS 服务器下用 java 开发 web 项目的套路了。我的目标是开发一个REST API 形式的后台服务系统，现在已经具备最近本的知识了，再了解一下 MysqL 的用法，就可以动手开始干活了。