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)

package cn.servlet;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.GenericServlet;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

public class MyGenericServlet extends GenericServlet{

    @Override
    public void service(ServletRequest req, ServletResponse resp)
            throws ServletException, IOException {
        resp.setCharacterEncoding("GBK");
         resp.getWriter().println("中文！");
         resp.getWriter().print("hello,我继承了GenericServlet");

    }    
}

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>