How Can I extract each part of a string ??

Question

Dear Sir:
I have a string like following to connect to Oracle Database:
JDBC_URL= jdbc:oracle:thin:@localhost:1521:ABChere,
I have Variables like:
driverClass="";
Hostname = "";
port = "";
SID="";
etc
I try to extract each part from this JDBC_URL,
then assign them to following variable separately:
driverClass="jdbc:oracle:thin";
Hostname = "localhost";
port = "1521";
SID="ABC";
Can some guru help give some good example and show how to do it??
Thanks and have a nice weekends.

Answer 1

try using a regular expression (regex).
here, i am going to try to freeball it:
// JDBC_URL= jdbc:oracle:thin:@localhost:1521:ABC
Pattern p = Pattern.compile("(JDBC_URL)(\\s*)(=)(\\s*)(.*?:.*?:.*?)(:)(@)(.*?)(:)(.*?)(:)(.*?)")
Matcher m = p.matcher(text)
if(m.matches()) or if(m.lookingAt()){
String driverclass = m.group(5);
String hostname = m.group(8);
...group(10);
...group(12);
}note that (\\s*) means "any amount of whitespace" and (.*?) means "any amount of any character (reluctantly)".
i used that because i dont know the constraints on those values. for only numbers you can use (\\d+) etc
[http://java.sun.com/j2se/1.4.2/docs/api/java/util/regex/Pattern.html|http://java.sun.com/j2se/1.4.2/docs/api/java/util/regex/Pattern.html]
also, i put everything into ( ) - which is called a capture group - but that was just to make it clearer. in your final regex you may get
rid of most of those.