三、springBoot+maven+mysql运行环境配置以及集成druid连接池(application.properties)

向右看齐 2022-03-11 18:28 404阅读 0赞

一、无连接池

1、单一配置

server.port=7654
    
    spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
    spring.datasource.url=jdbc:mysql://localhost:3306/mybatisproject?useUnicode=true&characterEncoding=utf8&serverTimezone=UTC
    spring.datasource.username=root
    spring.datasource.password=123456

2、或者多环境配置spring.profiles.active=test 其中test代表的就是application-test.properties文件配置，同理将test换成dev或者prod改变配置启动环境，文件目录图

![20190308142202770.png][]

application-test.properties

server.port=7654
    
    #默认激活的profiles
    spring.profiles.active=test

application-test.properties

spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
    spring.datasource.url=jdbc:mysql://localhost:3306/mybatisproject?useUnicode=true&characterEncoding=utf8&serverTimezone=UTC
    spring.datasource.username=root
    spring.datasource.password=123456

二、有链接池

添加包

pom.xml中添加

<dependency>
    	<groupId>com.alibaba</groupId>
    	<artifactId>druid-spring-boot-starter</artifactId>
    	<version>1.1.10</version>
    </dependency>

1、单一环境配置

server.port=7654
    
    #使用druid数据源
    spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
    spring.datasource.druid.driver-class-name=com.mysql.cj.jdbc.Driver
    spring.datasource.druid.url=jdbc:mysql://localhost:3306/mybatisproject?useUnicode=true&characterEncoding=utf8&serverTimezone=UTC
    spring.datasource.druid.username=root
    spring.datasource.druid.password=123456
    # 初始化大小，最小，最大
    spring.datasource.druid.initial-size=5
    spring.datasource.druid.min-idle=5
    spring.datasource.druid.max-active=20
    # 配置获取连接等待超时的时间
    spring.datasource.druid.max-wait=60000
    # 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒
    spring.datasource.druid.time-between-eviction-runs-millis=60000
    # 配置一个连接在池中最小生存的时间，单位是毫秒
    spring.datasource.druid.min-evictable-idle-time-millis=300000
    #检测连接是否有效的sql
    spring.datasource.druid.validation-query=SELECT 'x'
    spring.datasource.druid.validation-query-timeout=60000
    spring.datasource.druid.test-while-idle=true
    spring.datasource.druid.test-on-borrow=false
    spring.datasource.druid.test-on-return=false
    # PSCache Mysql下建议关闭
    spring.datasource.druid.pool-prepared-statements=false
    spring.datasource.druid.max-pool-prepared-statement-per-connection-size=-1
    #spring.datasource.druid.max-open-prepared-statements= #等价于上面的max-pool-prepared-statement-per-connection-size
    # 配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙，#别名方式，扩展插件，监控统计用的filter:stat，日志用的filter:log4j，防御sql注入的filter:wall
    spring.datasource.druid.filters=stat,wall,slf4j

2、或者多环境配置spring.profiles.active=dev 其中dev代表的就是application-dev.properties文件配置，同理将dev换成test或者prod改变配置启动环境，文件目录图

![20190308142202770.png][]

application.properties

server.port=7654
    
    #默认激活的profiles
    spring.profiles.active=dev

application-dev.properties

#使用druid数据源
    spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
    spring.datasource.druid.driver-class-name=com.mysql.cj.jdbc.Driver
    spring.datasource.druid.url=jdbc:mysql://localhost:3306/mybatisproject?useUnicode=true&characterEncoding=utf8&serverTimezone=UTC
    spring.datasource.druid.username=root
    spring.datasource.druid.password=123456
    # 初始化大小，最小，最大
    spring.datasource.druid.initial-size=5
    spring.datasource.druid.min-idle=5
    spring.datasource.druid.max-active=20
    # 配置获取连接等待超时的时间
    spring.datasource.druid.max-wait=60000
    # 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒
    spring.datasource.druid.time-between-eviction-runs-millis=60000
    # 配置一个连接在池中最小生存的时间，单位是毫秒
    spring.datasource.druid.min-evictable-idle-time-millis=300000
    #检测连接是否有效的sql
    spring.datasource.druid.validation-query=SELECT 'x'
    spring.datasource.druid.validation-query-timeout=60000
    spring.datasource.druid.test-while-idle=true
    spring.datasource.druid.test-on-borrow=false
    spring.datasource.druid.test-on-return=false
    # PSCache Mysql下建议关闭  
    spring.datasource.druid.pool-prepared-statements=false
    spring.datasource.druid.max-pool-prepared-statement-per-connection-size=-1
    # 打开PSCache，并且指定每个连接上PSCache的大小
    #spring.datasource.druid.pool-prepared-statements=true
    #spring.datasource.druid.max-pool-prepared-statement-per-connection-size=20
    #spring.datasource.druid.max-open-prepared-statements= #等价于上面的max-pool-prepared-statement-per-connection-size
    # 配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙，#别名方式，扩展插件，监控统计用的filter:stat，日志用的filter:log4j，防御sql注入的filter:wall
    spring.datasource.druid.filters=stat,slf4j

[20190308142202770.png]: /images/20220311/50429bc86a564de0b09ac55d918d7cd8.png