在springboot 中配置资源缓存过期时间，出错

spring.resources.cache-period在最新的2.0.4 改为 spring.resources.cache.period

错误描述如下：

Description:

Binding to target [
Bindable@70a3d3b5 type =
org.springframework.boot.autoconfigure.web.ResourceProperties,
value = ‘provided’,

annotations = array[@org.springframework.boot.context.properties.ConfigurationProperties(
prefix=spring.resources,
value=spring.resources,
ignoreUnknownFields=false,
ignoreInvalidFields=false)]

] failed:

Property: spring.resources.cache-period
Value: 3600
Origin: class path resource [application.properties]:48:32
Reason: The elements [spring.resources.cache-period] were left unbound.

Action:

Update your application’s configuration

看描述属性未绑定上。

查看springboot文档

https://docs.spring.io/spring-boot/docs/2.0.4.RELEASE/reference/htmlsingle/

> spring.resources.cache.period= # Cache period for the resources served by the resource handler. If a duration suffix is not specified, seconds will be used.

在最新的2.0.4 改为 spring.resources.cache.period

spring.resources.cache-period= # Cache period for the resources served by the resource handler, in seconds.

spring.resources.cache-period 已弃用，大概是命名奇怪吧

查看源码
https://github.com/spring-projects/spring-boot/blob/v1.5.4.RELEASE/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/ResourceProperties.java

    public Integer getCachePeriod() {
        return this.cachePeriod;
    }

    public void setCachePeriod(Integer cachePeriod) {
        this.cachePeriod = cachePeriod;
    }

注意有些配置是下划线，有些是 .

spring.resources.add-mappings=true

spring.resources.static-locations