unable to find valid certification path to requested target and ‘parent.relativePath’ points at no local POM

解决方案：
把这个

 <parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>1.5.10.RELEASE</version><relativePath/></parent>

换成

 <parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>1.5.10.RELEASE</version></parent>