Spring boot默认是/ ，这样直接通过http://ip:port/就可以访问到index页面，如果要修改为http://ip:port/path/ 访问的话，那么需要在Application.properties文件中加入server.context-path = /你的path,比如：spring-boot,那么访问地址就是http://ip:port/spring-boot 路径。

server.context-path=/spring-boot

常用配置：

########################################################

###EMBEDDED SERVER CONFIGURATION (ServerProperties)

########################################################

#server.port=8080

#server.address= # bind to a specific NIC

#server.session-timeout= # session timeout in seconds

#the context path, defaults to '/'

#server.context-path=/spring-boot

#server.servlet-path= # the servlet path, defaults to '/'

#server.tomcat.access-log-pattern= # log pattern of the access log

#server.tomcat.access-log-enabled=false # is access logging enabled

#server.tomcat.protocol-header=x-forwarded-proto # ssl forward headers

#server.tomcat.remote-ip-header=x-forwarded-for

#server.tomcat.basedir=/tmp # base dir (usually not needed, defaults to tmp)

#server.tomcat.background-processor-delay=30; # in seconds

#server.tomcat.max-threads = 0 # number of threads in protocol handler

#server.tomcat.uri-encoding = UTF-8 # character encoding to use for URL decoding