import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStreamReader; import java.io.OutputStreamWriter; import java.io.PrintWriter; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class GuestBook extends HttpServlet { @Override public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException { request.setCharacterEncoding("Windows-31J"); File tmp = new File(getServletContext().getRealPath("/WEB-INF/tmp.html")); PrintWriter fout = new PrintWriter(new OutputStreamWriter(new FileOutputStream(tmp), "Windows-31J")); File f = new File(getServletContext().getRealPath("/WEB-INF/Guests.html")); try { BufferedReader fin = new BufferedReader(new InputStreamReader(new FileInputStream(f), "Windows-31J")); String line; while (true) { line = fin.readLine(); if (line==null) { fout.println(""); line = "
"); e.printStackTrace(out); out.println("