SpringBoot操作数据库失败

1.确保数据库的url地址，用户名以及密码、端口号没有错误

下面是我的application.yml文件代码：

mybatis:

config-location: classpath:mybatis/mybatiscfg.xml

mapper-locations: classpath:mybatis/mapper/*.xml

type-aliases-package: com.neu.vo

server:

port:9696

servlet:

context-path: /neu

spring:

application:

name: sm

datasource:

driver-class-name:com.mysql.jdbc.Driver

 url: jdbc:mysql://localhost:3306/userdb?useUnicode=true&characterEncoding=utf8&useSSL=false

username: root

password: 123456

# 分页配置

pagehelper:

helper-dialect: mysql

reasonable: true

support-methods-arguments: true

params: count=countSql

2.自己的sql语句格式写错了吗？注意该有的空格！！！