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Apache Struts 2 Documentation
Basic Validation
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Let's configure a basic validation workflow, step by step.

## Step 1

Create the input form.

## Step 2

Create the Action class.

## Step 3

Create the validators. The `validation.xml` format is either `<ActionClassName>-validation.xml` or `<ActionClassName>-<ActionAliasName>-validation.xml`.

## Step 4

Make sure there is a result for "input" listed in the struts.xml for when the validation fails:

If you don't have this, you'll get a: "No result defined for action xxx.xxx.tutorial.HellowWorld and result input" error