JSON Exraction specific key and value

[#1]

how can I extracttext specific key and value from json data ?
{
"key1" : "value1",
"key2" : "value2",
"key3" : "value3",
}

I would like to apply the extraxttext on Key2 and its value only. 

[#2 · Accepted solution]

@ANMAR 

Try with this regex

(?:\"key2\"\\s*:\\s*)(.*?),

This will extract only the value of "key2" key i.e "value2"

-

if you don't need quotes to be extracted then use this regex

(?:\"key2\"\\s*:\\s*)"(.*?)",

This will extract only the value of "key2" key i.e value2

[#3]

Thanks a lot!