Java Servlet - getting information from multiple textboxes

Posted on 2009-05-05
Last Modified: 2012-05-06

I am wondering if there is a way to pull data from multiple text fields on a html page without having to hardcode the textfield names into my code using getParamater(textboxnamehere).

For example my page has 4 text fields, I want to be able to get the informtaion in those text fields and run it through the same SQL statement individually, using a loop.

Basically while there is a textbox that has not been read get textbox information, run SQL statement then process the next textbox

instead of using code like
String textOne = request.getParameter("textfield");
String textTwo = request.getParameter("textfield2");
Question by:TechnoBushPig
LVL 92

Accepted Solution

objects earned 450 total points
Comment Utility
use the same name for each field and use

String[] values = request.getParameterValues("textfiald");
for (String value : values) {
    // make sql call


Expert Comment

Comment Utility
Another useful way, while avoiding hardcoding is to use request.getParameterNames();

It will return an enumeration of all attribute names. Iterate through that and get all respective values for each parameter.

Hope this  helps.
LVL 92

Expert Comment

Comment Utility
the downside with using getParameterNames() is if you have other unrelated parameters in the query string

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Assisted Solution

Debasis126 earned 50 total points
Comment Utility
String parameterName = "";
for(Enumeration e = request.getParameterNames();e.hasMoreElements(); )
                        parameterName = (String)e.nextElement();
                        String parameterValue = (String)request.getParameter(parameterName);
                               \\ insert your sql statements


LVL 86

Expert Comment

Comment Utility
>>For example my page has 4 text fields, I want to be able to get the informtaion in those text fields and run it through the same SQL statement individually, using a loop.

You would get a more efficient solution if you put all four fields into a PreparedStatement and made one query

Author Closing Comment

Comment Utility
Thanks all

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