eclipse创建springboot项目时pom出现错误，不知道该怎么办

本人初学者，在eclipse创建springboot项目时pom出现这样的问题。

 错误信息：Non-resolvable parent POM for com.BrandGarden:brandgarden_web:0.0.1-SNAPSHOT: org.springframework.boot:spring-boot-starter-parent:pom:2.6.1 failed to 
 transfer from http://0.0.0.0/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of 
 maven-default-http-blocker has elapsed or updates are forced. Original error: Could not transfer artifact org.springframework.boot:spring-boot-starter-
 parent:pom:2.6.1 from/to maven-default-http-blocker (http://0.0.0.0/): Blocked mirror for repositories: [nexus-aliyun (http://maven.aliyun.com/nexus/content/
 groups/public, default, releases)]

上面提到maven的settings。xml我是这么写的

我查找网上配置文件都是这么写，哪里有错吗？

我现在懵了，该怎么办？

可能maven缓存失败，在maven仓库删除springboot2.6.1,然后再重新拉取；
若不行，将版本降级，比如变成2.5.2；
最后在项目上单击右键，选择Maven->Update Project，不行的话再重启尝试