Grails not using message.properties for Errors messages?

I'm trying to get at the localized form of a simple error code, but I can't seem to get it to parameterize as it should. In my integration test, I have this, just to illustrate the issue:

for( FieldError error : errors.fieldErrors )
{
    println error.toString()
}

In some manual binding, I have this:

myObject.errors.rejectValue("field1.field2", "typeMismatch.java.lang开发者_运维问答.Integer", [value] as Object[], "")

But when I print I get this:

Field error in object 'com.me.MyObject' on field 'field1.field2': rejected value [1];   
codes   
[typeMismatch.java.lang.Integer.com.me.MyObject.field1.field2,typeMismatch.java.lang.Integer.field1.field2,typeMismatch.java.lang.Integer.field2,typeMismatch.java.lang.Integer.int,typeMismatch.java.lang.Integer]

Why doesn't the string from message.properties get used? typeMismatch.java.lang.Integer=Property {0} must be a valid number

You can use the <g:message> tag as ataylor has suggested or the MessageSource Spring bean defined by Grails. An example of using this in a controller is shown below

import org.springframework.context.MessageSource
import org.springframework.web.servlet.support.RequestContextUtils as RCU

class SomeController {

  MessageSource messageSource

  def someAction = {SomeObject someObject ->

    for (error in someObject.errors) {

      // lookup the error message
      Locale locale = RCU.getLocale(request)
      String errorMsg = messageSource.getMessage(error)

      println errorMsg
    }
  }
}

Pass your error through the g:message tag to get the message from message.properties. In a controller, you can write something like this:

for( FieldError error : errors.fieldErrors )
{
    println g.message(error: error)
}

Alternatively, you can use the messageSource spring bean:

def messageSource

for( FieldError error : errors.fieldErrors )
{
    def locale = RequestContextUtils.getLocale(request)
    println messageSource.getMessage(error, locale)
}