Jsp + java class + servlet implement the function of reading and writing files (2)

This article is based on the implementation of the tomcat platform. The file directory is:
Under tom_homewebappsews:
└ Html
✓ WEB-INF
Classes
└ Com
Using FileMan. class
└ FileServlet. class
Web. xml
Then let's implement servlet: FileServlet. java
/*
* FileServlet. java
 *
* Created on June 19, 2005, PM
*/
Package com;
Import java. io .*;
Import java.net .*;
Import javax. servlet .*;
Import javax. servlet. http .*;
Import javax. servlet. jsp. PageContext;
/**
 *
* @ Author Tao Internet
* @ Version
*/
Public class FileServlet extends HttpServlet {

ServletContext SC;
/** Initializes the servlet.
*/
Public void init (ServletConfig config) throws ServletException {
Super. init (config );
SC = config. getServletContext ();

    }

/** Destroys the servlet.
*/
Public void destroy (){

    }

/** Processes requests for both http get and POST methods.
* @ Param request servlet request
* @ Param response servlet response
*/
Protected void processRequest (HttpServletRequest request, HttpServletResponse response)
Throws ServletException, IOException {
Response. setContentType ("text/html ");
PrintWriter out = response. getWriter ();
// * TODO output your page here