# spring.messages.* and spring.web.locale* in the configuration metadata shipped with Spring Boot 4.1.1 jar: spring-boot-autoconfigure-4.1.1.jar spring.messages.always-use-message-format type: java.lang.Boolean default: false spring.messages.basename type: java.util.List default: ["messages"] spring.messages.cache-duration type: java.time.Duration default: (none) spring.messages.common-messages type: java.util.List default: (none) spring.messages.encoding type: java.nio.charset.Charset default: "UTF-8" spring.messages.fallback-to-system-locale type: java.lang.Boolean default: true spring.messages.use-code-as-default-message type: java.lang.Boolean default: false spring.web.locale type: java.util.Locale default: (none) spring.web.locale-resolver type: org.springframework.boot.autoconfigure.web.WebProperties$LocaleResolver default: "accept-header"