3.4

继续学了springboot

SpringBoot是基于约定的，所以很多配置都有默认值，但如果想使用自己的配置替换默认配置的话，就可以使用application.properties或者application.yml（application.yaml）进行配置。

SpringBoot默认会从Resources目录下加载application.properties或application.yml（application.yaml）文件

1.其中，application.properties文件是键值对类型的文件，之前一直在使用，所以此处不在对properties文件的格式进行阐述。
2.除了properties文件外，SpringBoot还可以使用yml文件进行配置YML文件格式是YAML (YAML Aint Markup Language)编写的文件格式，YAML是一种直观的能够被电脑识别的的数据数据序列化格式，并且容易被人类阅读，容易和脚本语言交互的，可以被支持YAML库的不同的编程语言程序导入。
语法： key: value
配置数组（List、Set）数据
语法：

​ key:

​ - value1

​ - value2

或者：

​ key: [value1,value2]

常用配置

QUARTZ SCHEDULER (QuartzProperties)

spring.quartz.jdbc.initialize-schema=embedded # Database schema initialization mode.
spring.quartz.jdbc.schema=classpath:org/quartz/impl/jdbcjobstore/tables_@@platform@@.sql # Path to the SQL file to use to initialize the database schema.
spring.quartz.job-store-type=memory # Quartz job store type.
spring.quartz.properties.*= # Additional Quartz Scheduler properties.

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WEB PROPERTIES

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EMBEDDED SERVER CONFIGURATION (ServerProperties)

server.port=8080 # Server HTTP port.
server.servlet.context-path= # Context path of the application.
server.servlet.path=/ # Path of the main dispatcher servlet.

HTTP encoding (HttpEncodingProperties)

spring.http.encoding.charset=UTF-8 # Charset of HTTP requests and responses. Added to the "Content-Type" header if not set explicitly.

JACKSON (JacksonProperties)

spring.jackson.date-format= # Date format string or a fully-qualified date format class name. For instance, yyyy-MM-dd HH:mm:ss.

SPRING MVC (WebMvcProperties)

spring.mvc.servlet.load-on-startup=-1 # Load on startup priority of the dispatcher servlet.
spring.mvc.static-path-pattern=/** # Path pattern used for static resources.
spring.mvc.view.prefix= # Spring MVC view prefix.
spring.mvc.view.suffix= # Spring MVC view suffix.

DATASOURCE (DataSourceAutoConfiguration & DataSourceProperties)

spring.datasource.driver-class-name= # Fully qualified name of the JDBC driver. Auto-detected based on the URL by default.
spring.datasource.password= # Login password of the database.
spring.datasource.url= # JDBC URL of the database.
spring.datasource.username= # Login username of the database.

JEST (Elasticsearch HTTP client) (JestProperties)

spring.elasticsearch.jest.password= # Login password.
spring.elasticsearch.jest.proxy.host= # Proxy host the HTTP client should use.
spring.elasticsearch.jest.proxy.port= # Proxy port the HTTP client should use.
spring.elasticsearch.jest.read-timeout=3s # Read timeout.
spring.elasticsearch.jest.username= # Login username.