Spring MVC issue to read data from JSP table

[yakkala krishna]

Hi,

As part of POC i am facing below challenge:
In HTML table i need to read td data in spring controller using @RequestParam.
Syntax:

<table>
 <tr>
 <td>Hello123</td>
 </tr>
 ......
 </table>

could you please suggest how can i read td data(Hello123) in spring controller? If you need any info please let me know.

Thanks,
Rama

[Bear Bibeault]

Cannot be done directly. You'll need to create form inputs that contain the data -- "normal" HTML text is not sent to the server as part of a form submission.

Two approaches spring to mind:

For each table cell create a corresponding hidden input that contains the same data.

Rather than plain text, make each table cell an input control set to read-only, and use CSS to make it look like plain text.

[Matt Keller]

Bear has it right.  You need inputs.  If you think about it, if they are not inputs how did your user enter them right?  Also, if you have multiple rows in your table then you can actually generate the input names to target an array in a bean on the Spring server.  You do this by use square brackets in your input names, like so.  Imagine there is table markup around these inputs.

<input type="text" name="firstName[0]" value="Bill"/>  <input type="text" name="lastName[0]" value="Wild"/>

<input type="text" name="firstName[1]" value="Steve"/>  <input type="text" name="lastName[1]" value="Harvey"/>

[Matt Keller]

Oops.  My bad.  Got the syntax wrong.  It like this

<input type="text" name="arrayName[0].firstName" value="Bill"/>

[Matt Keller]

Evidently this depends on your version of spring as well.  Here is a paste from the following source

Spring 3 MVC and path attribute and square bracket

One thing here is worth noting that we haven’t used Spring’s tag to render textboxes. This is because Spring MVC 3 has a unique way of handling path attribute for tag. If we define the textbox as follows:

<form:input path="contacts[${status.index}].firstname" />
Then instead of converting it to following HTML code:

<input name="contacts[0].firstname" />
<input name="contacts[1].firstname" />
<input name="contacts[2].firstname" />
It converts it into following:

<input name="contacts0.firstname" />
<input name="contacts1.firstname" />
<input name="contacts2.firstname" />

http://viralpatel.net/blogs/spring-mvc-multi-row-submit-java-list/