No Converter found for return value of type: class java.util.arraylist Error Problem

LongDi - IDEA 2021-10-14 05:05:37
converter return value type class

En construisantSpring+SpringMVC+MybatisL'erreur suivante s'est produite dans l'environnement
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Erreur:No converter found for return value of type: class java.util.ArrayList
Raisons:Parce quespringmvcPar défaut, aucun objet n'est converti enjsonDu convertisseur,Besoin d'ajouter manuellementjacksonDépendance.
Solutions:Besoin deXMLImporter les dépendances suivantes


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