How to get ricCode:.ABC from following string.
My matcher is
Matcher matcher = Pattern.compile("ricCode:([A-Za-z]+),$").matcher(str);
String str = "{AMX:{ricCode:.ABC,indexDetailEnable:true,price:20,648.15,netChange:<spanclass="md-down">-41.09</span>,percentChange:<spanclass="md-down">-0.20％</span>,tradeDate:17/04/05,tradeTime:16:40,chartDate:17/04/05,chartTime:16:40}";
What is missing in the regex?
Change your regex from this:
ricCode:([A-Za-z]+),$
to this:
ricCode:([A-Za-z.]+)(?=,)
Your original regex would only allow alphabetic characters after ricCode:, but your example has a period . character. Also you were matching the , character, but this would also include the comma in your match, you dont want this - so I added a positive lookahead for the comma so it looks for it there but does not match it. Finally you had the $ character at the end of your regex which matches the end of the string, you dont want to look for the end of the string immediately after the comma, so I removed it.
It helps to use regexr.com to test out your expression.
Matcher matcher = Pattern.compile("ricCode:([A-Za-z.]+)(?=,)").matcher(test); while (matcher.find()) { String str = test.substring(matcher.start("ricCode:"),matcher.end()); System.out.println("value :: "+str); }System.out.println("value :: "+ matcher.group()) correct way. Thanks a lotricCode: till comma ?
(?<=ricCode:)[^,]+(?=,), it uses positive lookbehind to find ricCode: but doesnt include it in the match, then looks for 1 or more characters that are not , and then positive lookahead for your ,