Unable to retrieve the value of a specific text in java

Question

I have a long text like below:

name="sessionValidity" value="2018-09-13T16:28:28Z" type="hidden" name="shipBeforeDate" value= "2018-09-17" name="merchantReturnData" value= "",name="shopperLocale" value="en_GB" name="skinCode" value="CeprdxkMuQ" name="merchantSig" value="X70xAkOaaAeWGxNgWnTJolmy6/FFoFaBD47IzyBYWf4="

Now, I have to find all the data which are stored in the value string. Please help.

Added actually it is a HTML content so it was not seen earlier. Its sorted now. — Ranjan Gupta, Sep 18 '18 at 10:30
yep.It has multiple occurrences in the text above. I need to get some value stored in value string. — Ranjan Gupta, Sep 18 '18 at 10:33
I need all the strings which are stored in all the value in the above text. — Ranjan Gupta, Sep 18 '18 at 10:35
It is a too long editor is not allowing me to post the full HTML. — Ranjan Gupta, Sep 18 '18 at 10:47
Down voted just because *value* and *string* are frequently used words in programming. You want to parse the *value* behind *the value* and then do what with all those strings? Question stays unclear for most of the auditory... — dbl, Sep 18 '18 at 10:51
@RanjanGupta just the part which you posted as a string with the html tags is enough. You may use a htmlparser like jsoup to get the desired values insted of string manipulation or using regex. — Eritrean, Sep 18 '18 at 10:59
I can not use jsoup coz the HTML page is broken as it needs some dynamic data which are the values in the string given so thinking to replace the data under value through other solution. — Ranjan Gupta, Sep 18 '18 at 11:19

score 0 · Answer 1 · answered Sep 18 '18 at 11:24

0

Usually the worst thing you could do is parsing an HTML with regex. Detailed explonation here.

For the purpose of parsing the data and manipulate it the right way you should considering using an advanced markup parser like jaxb, jsoup, or any other.

Of course it is a case specific decision and in your case maybe this one could do the work...

private static List<String> extractValuesAsUselessList(String theString) {
    List<String> attributes = new ArrayList<>();

    if (theString != null && !theString.equals("")) {
        Matcher matcher = Pattern.compile("\\s([\\w+|-|:]+)=\"(.*?)\"").matcher(theString);

        while (matcher.find()) {
            if ("value".equals(matcher.group(1))) {
                attributes.add(matcher.group(2));
            }
        }
    }

    return attributes;
}

answered Sep 18 '18 at 11:24

dbl

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Thanks for the suggestion. I am trying to modify the data through jsoup now. I have the below html: – Ranjan Gupta Sep 25 '18 at 09:01
I think you did the right choice. Good luck with it and don't bother asking for any assistance in this direction. – dbl Sep 25 '18 at 09:05
I tried modifying specific value through jsoup like below: Elements parents = doc.select("input[value]"); for (Element parent : parents) { System.out.println(parent.attr("value").replace("X70xAkOaaAeWGxNgWnTJolmy6/FFoFaBD47IzyBYWf4=", "Ranjan").replace("17572418", "17572418123").replace("200", "199").replace("2018-09-13T16:28:28Z", "2018-09-25T16:28:28Z").replace("2018-09-17", "2018-09-25")); But When I print System.out.println(doc); It is printing the same old value instead I should get the modified one. How to modify the specific value which are under input tag? – Ranjan Gupta Sep 25 '18 at 09:08
please help if you have any insight to the above issue which I am facing currently. – Ranjan Gupta Sep 25 '18 at 09:16

Unable to retrieve the value of a specific text in java

1 Answers1

Usually the worst thing you could do is parsing an HTML with regex. Detailed explonation here.