1.首先创建一个Dynamic Web Project
2.在src下创建包，为了演示我这里创建了一个名为web的包
3.选中包，右键选择新建，选择新建Servlet，然后取一个名称。（这里我取的名字为HelloServlet1）
4.此时HelloServlet1类中会自动生成相关代码。
package web;
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;
@WebServlet("/HelloServlet1")
public class HelloServlet1 extends HttpServlet {
private static final long serialVersionUID = 1L;
public HelloServlet1() {
super();
// TODO Auto-generated constructor stub
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
response.getWriter().append("Served at: ").append(request.getContextPath());
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
5.现在我们模拟一个get请求，并在浏览器显示"你好呀，陌生人！"。要修改HelloServlet1类中doGet方法的代码。
doGet方法的代码修改后如下：
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
out.println("你好呀，陌生人！");
out.close();
}
6.配置web.xml文件
web.xml代码如下：
Tomcat_web_test HelloServlet1 web.HelloServlet1 HelloServlet1 /pw
7.运行HelloServlet1类,此时在浏览器中就会显示刚才定义的内容了
