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java bean , jsp page and parameters

nirjari patel
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Joined: Apr 23, 2009
Posts: 374
HTML Form
Java Class

JSP PAGE - SavePage.jsp


1 How does the parameters from html form get collected in Savename.jsp ? As there is no request.getParameter() ?

2 How do these parameters het transferred to java bean user ? user java class is called by the useBean, but how is each property assigned a particular value ?

thanks
Sebastian Janisch
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Joined: Feb 23, 2009
Posts: 1183
If you declare property="*", the container will map all request parameters which names can be matched with a JavaBean Property setter method into the bean.

The idea is simple.

An input field of name email will invoke setEmail(String s) on the bean you use.

If you have input fields that don't have a bean setter, no worries, these are skipped, no exception is thrown.

As for how the container does it... the powerful capabilities of Reflections


JDBCSupport - An easy to use, light-weight JDBC framework -
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: java bean , jsp page and parameters