asked on

URLEncoded to String

How can I convert Urlencoded string back 'normal' string?
something like:

String s = URLEncoder.encode("T S");
String s1 = IneedThis.toString();

and s1 should be "T S".

ASKER CERTIFIED SOLUTION

mbormann

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mbormann

oops ,i forgot to add this ,soory for that .
see from https://www.experts-exchange.com/jsp/qShow.jsp?ta=java&qid=10223004

use this and name this class as URLDecoder

public class URLDecoder
{
public static String decode(String s) {

ByteArrayOutputStream out = new ByteArrayOutputStream(s.length());

for (int i = 0; i < s.length(); i++) {
int c = (int) s.charAt(i);
if (c == '+') {
out.write(' ');
}
else if (c == '%') {
int c1 = Character.digit(s.charAt(++i), 16);
int c2 = Character.digit(s.charAt(++i), 16);
out.write((char) (c1 * 16 + c2));
}
else {
out.write(c);
}
} // end for

return out.toString();

}
}

mbormann

Download :
ftp://ftp.oreilly.com/published/oreilly/java/java.netprog/javanetexamples.zip

Once deziped :
javanetexamples\05\URLDecoder.java

......
courtesy of 'pyxide'

jukkauusi

ASKER

Thanks,

I made same kind of method as this URLDecoder.decode. My version is

private String MakeCleanString(String s) {
String rc="";
for(int i=0;i<s.length();i++) {
if(s.charAt(i)=='+') {
rc+=' ';
continue;
}
if(s.charAt(i)=='%') {
rc+=(char) Integer.decode("0x"+s.substring(i+1,i+3)).intValue();
i+=2;
continue;
}
rc+=s.charAt(i);
}
return rc;
}

Do You find any problems with that one?

But You got points, anyway.

mbormann

hey it's very nice!