spring启动报错：expected block end, but found BlockMappingStart

报错信息为：

org.yaml.snakeyaml.parser.ParserException: 
while parsing a block mapping
 in 'reader', line 2, column 1:
    management:
    ^
expected <block end>, but found BlockMappingStart
 in 'reader', line 27, column 2:

这个多多半是因为yml的格式不正确。 因为yml对空格数要求很严格，没有对齐就会报这个错。