1、新建java Project 工程。导入servlet-api.jar包。
2、新建class文件,粘贴代码。import java.io.IOException;import java.util.Date;i罪焐芡拂mport javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;public class HelloServlet extends HttpServlet{ @SuppressWarnings("deprecation") public void doGet(HttpServletRequest request, HttpServletResponse response){ try { response.getWriter().println("<h1>hello servlet!</h1>"); response.getWriter().println(new Date().toLocaleString()); } catch (IOException e) { // TODO: handle exception e.printStackTrace(); } }}
3、新建web/WEB-INF/web.xml文件，粘贴代码。<?xml version="1.0" encoding="UTF-8"?><web-app> <servlet> <servlet-name>HelloServlet</servlet-name> <servlet-class>HelloServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>HelloServlet</servlet-name> <url-pattern>/hello</url-pattern> </servlet-mapping></web-app>
4、修改java目录，与tomcat匹配。修改tomcat/conf/sever.xml文件，链接到java,粘贴代码。<Context path="/" docBase="d:\\project\\j2ee\\web" debug="0" reloadable="false"/>
5、删除tomcat\webapps\ROOT文件夹。重启tomcat,打开浏览器，执行代码，刷新会变。http://127.0.0.1:8080/hello
