現在我們的application.properties文件內容是:
server.port=8090
server.session-timeout=30
server.context-path=
server.tomcat.max-threads=0
server.tomcat.uri-encoding=UTF-8
spring.datasource.url = jdbc:mysql://localhost:3306/newbirds
spring.datasource.username = root
spring.datasource.password = mymysql
spring.datasource.driverClassName = com.mysql.jdbc.Driver
# Specify the DBMS
spring.jpa.database = MYSQL
# Show or not log for each sql query
spring.jpa.show-sql = true
# Hibernate ddl auto (create, create-drop, update)
spring.jpa.hibernate.ddl-auto = update
# Naming strategy
spring.jpa.hibernate.naming-strategy = org.hibernate.cfg.ImprovedNamingStrategy
# stripped before adding them to the entity manager)
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5Dialect
而官方給的很多demo,都是用yml文件配置的。
yml文件的好處,天然的樹狀結構,一目瞭然。不過當時把application.properties 改成 application.yml還是痛苦了一會兒。
下面是置換後的application.yml內容:
server:
port: 8090
session-timeout: 30
tomcat.max-threads: 0
tomcat.uri-encoding: UTF-8
spring:
datasource:
url : jdbc:mysql://localhost:3306/newbirds
username : root
password : mymysql
driverClassName : com.mysql.jdbc.Driver
jpa:
database : MYSQL
show-sql : true
hibernate:
ddl-auto : update
naming-strategy : org.hibernate.cfg.ImprovedNamingStrategy
properties:
hibernate:
dialect : org.hibernate.dialect.MySQL5Dialect
注意點:
1,原有的key,例如spring.jpa.properties.hibernate.dialect,按“.”分割,都變成樹狀的配置
2,key後面的冒號,後面一定要跟一個空格
3,把原有的application.properties刪掉。然後一定要執行一下 maven -X clean install