正則表達式截取字符串內容

正則表達式截取字符串內容

Pattern pattern = Pattern.compile("(\\{)(.+?)(\\})");
        String test = "callback( {\"client_id\":\"222222\",\"openid\":\"122121\",\"unionid\":\"ddddddddd\"} );";
        Matcher matcher = pattern.matcher(test);
        while (matcher.find()){
            System.out.println(matcher.group());
        }

部分說明：

https://www.runoob.com/regexp/regexp-metachar.html