# 71.9 Velocity ### 71.9 Velocity 默認情況下，Spring Boot會配置一個`VelocityViewResolver`，如果需要的是`VelocityLayoutViewResolver`，你可以自己創建一個名為`velocityViewResolver`的bean。你也可以將`VelocityProperties`實例注入到自定義視圖解析器以獲取基本的默認設置。 以下示例使用`VelocityLayoutViewResolver`替換自動配置的velocity視圖解析器，并自定義`layoutUrl`及應用所有自動配置的屬性： ``` @Bean(name = "velocityViewResolver") public VelocityLayoutViewResolver velocityViewResolver(VelocityProperties properties) { VelocityLayoutViewResolver resolver = new VelocityLayoutViewResolver(); properties.applyToViewResolver(resolver); resolver.setLayoutUrl("layout/default.vm"); return resolver; } ```