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Number Format Exception

 
Ranch Hand
Posts: 73
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Can someone fine the exception with the Integers? I know where it is at, just can't find out how it is happening

Exception:

Database Query


Servlet:


JSP:

 
Marshal
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Eclipse IDE Firefox Browser MySQL Database
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The only place where you cast something to an Integer is here:

And as the message says, what you're getting from the list is a String and you can't cast that to an Integer.

Perhaps this instead?
 
Ranch Hand
Posts: 144
Oracle Fedora Java
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What value is being returned by the getParameter call? If you do a System.out.println(request.getParameter("selection")), I have a feeling that it will be a value that does not convert directly to an int.
 
Ron Ingram
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returns 1 for parameter call "selection".

line 68 returns "test" which is def not a number. Got to figure this out where the problem lies. The database is correct for that field though
 
Mike Zal
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Oracle Fedora Java
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I don't think this is the problem causing your issue but you may wish to update your query to not use select * or using positional index to retrieve values from a ResultSet. I have seen way too many maintenance issues come out of this practice.
 
Ron Ingram
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Thanks Mike for your time

I just figured it out. It had the positional index numbers off trying to retrieve the values from the resultset. I'll go back and cleanup the query and use column names vs index.

 
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