Struts 1如何设置复选框默认选中

Question

I'm making some small changes to an existing project, which was built using Struts 1.2. I need to have a check box on the form checked by default. I'm a newbie on Struts.

I understand that I can't set a default value for check boxes on form reset method, in fact it is suggested to set the value to false for checkboxes in reset method. The only way I can think of is to check the POST param, but I don't think this is a good solution.

Is there a correct Struts way to have a default checked checkbox?

Answer 1

you have:

<html:checkbox property="multiRole" value="Y" />

if you want the page rendered with it checked by default, you need to set the property "multiRole" in your action form to "Y"

Answer 2

Why can't you set a default value in reset? That's mostly what it's for. You can also set a value in the action that initially displays the form.

Answer 3

或者，您可以使用常规的“html标记来解决此问题。此标记还可以通过name参数与表单bean进行交互。在表单bean中，您可以使用布尔参数！

<input type="checkbox" name="multiRole" checked="checked" />