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Creating language files
Multilingual reports/forms – create a ResourceBundle in Jaspersoft Studio and embed it via $R{}.
HOW-TO APPLICATION DEVELOPER UPDATED: JUL 2026 APPLIES TO NUCLOS 4.2026.X
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What is a language file?
A properties file (.properties) is a simple text file that JasperReports uses via the ResourceBundle mechanism. The easiest way to create one is in Jaspersoft Studio.
Create a ResourceBundle in Jaspersoft Studio
- Right-click a project → New → Other.
- Choose Messages Editor → Resource Bundle, Next.
- Set the folder and base name, add the desired languages, Finish.
- One
.propertiesfile per language is created (base name + country code). - Add keys via right-click → Append… and enter values per language.
ResourceBundle main view with languages.
Embedding in the form template
In the form, translatable spots are defined as text fields with a key:
anfrage.thema = Anfrage # in Bundle_de.properties
$R{anfrage.thema} # in the form
Important
In the form property, enter the base name without .properties (e.g. Bundle). The Java ResourceBundle mechanism automatically picks Bundle_de, Bundle_en etc. based on the locale. This setting must also be set for all subforms!
The form is loaded via Configuration → Report → Form or Report. For another language, clone the record and assign the other language. Further locales can be added at any time.
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