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Struts2 decoupling and obtaining submitted values

Source: Internet
Author: User
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Obtain a single value

Object obj = ((Object[])ActionContext.getContext().getParameters().get("parentCuetomerId"))[0]

Get collection

Object[] objs = (Object[]) ActionContext.getContext().getParameters().get("parentCuetomerId");

Here we will disassemble it.

ActionContext.getContext().getParameters().get("parentCuetomerId")

In this way, the obtained result is an array. Struts is used to obtain the collection from the request, so a single value is also placed in the collection. Of course, if it is not a set that is submitted, it will also be placed in the array. This does not need to be explained. The subscript 0 can be directly obtained.

Two Methods for submitting a set using struts

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

 


Struts2 decoupling and obtaining submitted values

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