//*/*/*/*/*/*/*/*/*/*/*/*/*/*/
// URLs for important websites
//*/*/*/*/*/*/*/*/*/*/*/*/*/*/
// Original servlet:
// http://novocode.de/doc/servlet-essentials/chapter2b.html
// file:///C|/apache/Tomcat/webapps/examples/WEB-INF/classes/ListManagerServlet.html
// Homepage of my Apache Tomcat Server (for download and documentation):
// http://jakarta.apache.org/tomcat/
//*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/
// Shortcuts for compiling and testing
//*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/
// Directory for compilation:
// C:\apache\Tomcat\webapps\examples\WEB-INF\classes
// Compile:
// javac Bookmarks.java -classpath "C:\Programme\Java 2\jdk1.3\servlet.jar"
// Run:
// http://localhost:8080/examples/servlet/Bookmarks
// http://notevom.zhwin.ch:8080/examples/servlet/Bookmarks
// Homepage of my Apache Tomcat server (for testing:
// http://notevom.zhwin.ch:8080/index.html
//*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/
// Code for servlet "Bookmarks"
//*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/
import java.util.Vector;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class Bookmarks extends HttpServlet
{
private Vector addresses;
private String filename;
private String seperator = ",";
public void init(ServletConfig config) throws ServletException
{
super.init(config);
// location of file: C:\WINNT\system32
filename = "bookmarks.txt";
// comented code out and replaced with code above
// filename = config.getInitParameter("Bookmarks");
if(filename == null)
throw new UnavailableException(this,
"The \"addressfile\" property "+
"must be set to a file name");
try
{
ObjectInputStream in =
new ObjectInputStream(new FileInputStream(filename));
addresses = (Vector)in.readObject();
in.close();
}
catch(FileNotFoundException e) { addresses = new Vector(); }
catch(Exception e)
{
throw new UnavailableException(this,
"Error reading address file: "+e);
}
}
protected void doGet(HttpServletRequest req,
HttpServletResponse res)
throws ServletException, IOException
{
res.setContentType("text/html");
res.setHeader("pragma", "no-cache");
PrintWriter out = res.getWriter();
out.print("Bookmark Manager");
// reload to "delete" cached deleted Links, commented code out -> found better solution!
// out.print("");
out.print("");
out.print("Hyperlinks:
");
for(int i=0; i");
}
/* test with image button - didn't work :(
*/
if(temp.length > 3){
out.print("");
}
}
out.print("
");
out.close();
}
protected void doPost(HttpServletRequest req,
HttpServletResponse res)
throws ServletException, IOException
{
String url = req.getParameter("url") + seperator + req.getParameter("title") + seperator + req.getParameter("type") + seperator + req.getParameter("user");
String msg;
if(url == null)
{
res.sendError(res.SC_BAD_REQUEST,
"No url specified.");
return;
}
if(req.getParameter("action").equals("subscribe"))
{
if(subscribe(url))
msg = "Address " + url + " has been subscribed.";
else
{
res.sendError(res.SC_BAD_REQUEST,
"Address " + url + " was already subscribed.");
return;
}
}
else
{
if(unsubscribe(url))
msg = "Address " + url + " has been removed.";
else
{
res.sendError(res.SC_BAD_REQUEST,
"Address " + url + " was not subscribed.");
return;
}
}
res.setContentType("text/html");
res.setHeader("pragma", "no-cache");
PrintWriter out = res.getWriter();
out.print("Bookmarks Manager");
// out.print("");
out.print("");
// begin of modified code
out.print("Thank you for your help!
");
out.print(msg);
out.print("
Close the window. ");
out.print("Show the servlet list.");
// end of modified code
out.print("");
out.close();
}
public String getServletInfo()
{
return "Bookmarks 1.0 by Martin Voegeli";
}
private synchronized boolean subscribe(String url) throws IOException
{
if(addresses.contains(url)) return false;
addresses.addElement(url);
save();
return true;
}
private synchronized boolean unsubscribe(String url) throws IOException
{
if(!addresses.removeElement(url)) return false;
save();
return true;
}
private void save() throws IOException
{
ObjectOutputStream out =
new ObjectOutputStream(new FileOutputStream(filename));
out.writeObject(addresses);
out.close();
}
// begin of added code
// code source split():
// http://www.codeproject.com/useritems/string_splitter1.asp
public String[] split(String str,char x){
Vector v=new Vector();
String str1=new String();
for(int i=0;i