src.com.ibm.as400.util.html.URLEncoder Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of jt400 Show documentation
Show all versions of jt400 Show documentation
The Open Source version of the IBM Toolbox for Java
///////////////////////////////////////////////////////////////////////////////
//
// JTOpen (IBM Toolbox for Java - OSS version)
//
// Filename: URLEncoder.java
//
// The source code contained herein is licensed under the IBM Public License
// Version 1.0, which has been approved by the Open Source Initiative.
// Copyright (C) 1997-2001 International Business Machines Corporation and
// others. All rights reserved.
//
///////////////////////////////////////////////////////////////////////////////
package com.ibm.as400.util.html;
import com.ibm.as400.access.Trace;
import java.util.StringTokenizer;
/**
* The URLEncoder class encodes a string's delimiters for use in an HTML URL string.
*
* For example, the following HTML URL string is not valid and would need to be encoded:
*
* http://mySystem.myCompany.com/servlet/myServlet?parm1="/library/test1#partA"&parm2="/library/test2#partB"
*
*
* The following example uses the URLEncoder class to encode two URL string parameter values:
*
* HTMLForm form = new HTMLForm();
* String action = "http://mySystem.myCompany.com/servlet/myServlet";
* String parm1 = "parm1=" + URLEncoder.encode("\"/library/test1#partA\"");
* String parm2 = "parm2=" + URLEncoder.encode("\"/library/test2#partB\"");
* form.setURL(action + "?" + parm1 + "&" + parm2);
*
*
* The delimiters that are encoded include:
*
* - The ASCII characters 'a' through 'z', 'A' through 'Z', and '0' through '9' remain the same.
*
- The space character ' ' is converted into a plus sign '+'.
*
- All other characters are converted into the 3-character string "%xy", where xy is the two-digit hexadecimal
* representation of the lower 8-bits of the character.
*
**/
public class URLEncoder
{
private static final String copyright = "Copyright (C) 1997-2001 International Business Machines Corporation and others.";
/**
* Encodes the URL.
* @param url The URL to be encoded.
* @return The encoded string.
**/
static public String encode(String url)
{
return encode(url, true); //$B1A @B2C
}
/**
* Encodes the URL.
* @param url The URL to be encoded.
* @param encodePath true if the "/" is encoded in the url; false otherwise. The default is true.
* @return The encoded string.
**/
static public String encode(String url, boolean encodePath) //$B1A @B2C
{
if (url == null) //$B1A
throw new NullPointerException("url"); //$B1A
//@C3A
if (encodePath) // @B2A
return java.net.URLEncoder.encode(url); // @B2A
else // @B2A
{
// @B2A
StringBuffer s = new StringBuffer(); // @B2A
String next; // @B2A
StringTokenizer token = new StringTokenizer(url, "/", true); // @B2A
while (token.hasMoreTokens()) // @B2A
{
// @B2A
next = token.nextToken(); // @B2A
if (next.equals("/")) // @B2A
s.append(next); // @B2A
else // @B2A
s.append(java.net.URLEncoder.encode(next)); // @B2A
} // @B2A
// Must change the '+' to a space since some of the webserver
// engines don't properly decode the encoded url string.
// return s.toString().replace('+', ' '); // @C1C @C2D
// - use %20 instead of ' ' because both IE and Netscape // @C2A
// handle the ' ' differently. only one of the browsers properly
// encodes that into a '%20', so we'll force the '%20'.
token = new StringTokenizer(s.toString(), "+", true);
s = new StringBuffer();
while (token.hasMoreTokens())
{
next = token.nextToken();
if (next.equals("+"))
s.append("%20");
else
s.append(next);
}
return s.toString();
}
}
}