Servlet----------通过 GenericServlet 开发Servlet

通过继承GenericServlet抽象类。只需要重写service()方法即可。(这个知识点了解即可)

 1 package cn.servlet;
 2 
 3 import java.io.IOException;
 4 import java.io.PrintWriter;
 5 
 6 import javax.servlet.GenericServlet;
 7 import javax.servlet.ServletException;
 8 import javax.servlet.ServletRequest;
 9 import javax.servlet.ServletResponse;
10 
11 public class MyGenericServlet extends GenericServlet{
12 
13     @Override
14     public void service(ServletRequest req, ServletResponse resp)
15             throws ServletException, IOException {
16         resp.setCharacterEncoding("GBK");
17          resp.getWriter().println("中文！");
18          resp.getWriter().print("hello,我继承了GenericServlet");
19 
20     }    
21 }

XML部署：

<servlet>
    <servlet-name>mygenericservlet</servlet-name>
    <servlet-class>cn.servlet.MyGenericServlet</servlet-class>
</servlet>
<servlet-mapping>
    <servlet-name>mygenericservlet</servlet-name>
    <url-pattern>/servlet/MyGenericServlet</url-pattern>    
</servlet-mapping>