sourcecodeservlet.java

来自「一个使用struts+hibernate+spring开发的完的网站源代码。」· Java 代码 · 共 46 行

package org.apache.myfaces.examples.servlet;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;

public class SourceCodeServlet extends HttpServlet 
{
    public void doGet(HttpServletRequest req, HttpServletResponse res)
        throws IOException, ServletException
    {
        String webPage = req.getServletPath();
        
        // remove the '*.source' suffix that maps to this servlet
        int chopPoint = webPage.indexOf(".source");
        
        webPage = webPage.substring(0, chopPoint - 1);
        webPage += "p"; // replace jsf with jsp
        
        // get the actual file location of the requested resource
        String realPath = getServletConfig().getServletContext().getRealPath(webPage);
        System.out.println("realPath: " + realPath);

        // output an HTML page
        res.setContentType("text/plain");

        // print some html
        ServletOutputStream out = res.getOutputStream();

        // print the file
        InputStream in = null;
        try 
        {
            in = new BufferedInputStream(new FileInputStream(realPath));
            int ch;
            while ((ch = in.read()) !=-1) 
            {
                out.print((char)ch);
            }
        }
        finally {
            if (in != null) in.close();  // very important
        }
    }
}