spring-boot 配置druid数据源

spring-boot 配置druid数据源

配置

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>druid</artifactId>
    <version>1.0.18</version>
</dependency>

yuml 配置

spring:
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    username: root
    password: 123456
    url: jdbc:mysql://localhost:3308/spring_boot?characterEncoding=UTF-8
    initialSize: 5
    minIdle: 5
    maxActive: 20
    maxWait: 60000
    timeBetweenEvictionRunsMillis: 60000
    minEvictableIdleTimeMillis: 300000
    validationQuery: SELECT 1
    testWhileIdle: true
    testOnBorrow: false
    testOnReturn: false
    poolPreparedStatements: true
    maxPoolPreparedStatementPerConnectionSize: 20
    filters: stat,wall,log4j
    connectionProperties: ruid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
  driver-class-name: com.mysql.jdbc.Driver
  jpa:
    database-platform: org.hibernate.dialect.MySQLDialect
    show-sql: true

properties 配置

# 数据库访问配置
# 主数据源，默认的
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/test
spring.datasource.username=root
spring.datasource.password=123456
 
# 下面为链接池的补充设置，应用到上面全部数据源中
# 初始化大小，最小，最大
spring.datasource.initialSize=5
spring.datasource.minIdle=5
spring.datasource.maxActive=20
# 配置获取链接等待超时的时间
spring.datasource.maxWait=60000
# 配置间隔多久才进行一次检测，检测须要关闭的空闲链接，单位是毫秒
spring.datasource.timeBetweenEvictionRunsMillis=60000
# 配置一个链接在池中最小生存的时间，单位是毫秒
spring.datasource.minEvictableIdleTimeMillis=300000
spring.datasource.validationQuery=SELECT 1 FROM DUAL
spring.datasource.testWhileIdle=true
spring.datasource.testOnBorrow=false
spring.datasource.testOnReturn=false
# 打开PSCache，而且指定每一个链接上PSCache的大小
spring.datasource.poolPreparedStatements=true
spring.datasource.maxPoolPreparedStatementPerConnectionSize=20
# 配置监控统计拦截的filters，去掉后监控界面sql没法统计，'wall'用于防火墙
spring.datasource.filters=stat,wall,log4j
# 经过connectProperties属性来打开mergeSql功能；慢SQL记录
spring.datasource.connectionProperties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
# 合并多个DruidDataSource的监控数据

方法一

配置Servlet

@WebServlet(urlPatterns = "/druid/*", initParams = { @WebInitParam(name = "allow", value = "127.0.0.1"), // IP白名单 (没有配置或者为空，则容许全部访问)
		@WebInitParam(name = "deny", value = ""), // IP黑名单 (存在共同时，deny优先于allow)
		@WebInitParam(name = "loginUsername", value = "admin"), // 用户名
		@WebInitParam(name = "loginPassword", value = "123456"), // 密码
		@WebInitParam(name = "resetEnable", value = "false")// 禁用HTML页面上的“Reset All”功能
})
public class DruidStatViewServlet extends StatViewServlet {
	private static final long serialVersionUID = -7635469867140166016L;
}

配置Filter

@WebFilter(filterName = "druidWebStatFilter", urlPatterns = "/*", initParams = {
	@WebInitParam(name = "exclusions", value = "*.js,*.gif,*.jpg,*.bmp,*.png,*.css,*.ico,/druid/*")// 忽略资源
})
public class DruidStatFilter extends WebStatFilter {

}

最后在App.java类上加上注解：@ServletComponentScan是的spring可以扫描到咱们本身编写的servlet和filter。

方法二

配置

@Configuration
public class DuridConfiguration {

	/**
	 * 注册一个StatViewServlet
	 * @return
	 */
	@Bean
	public ServletRegistrationBean DruidStatViewServle2() {
		//org.springframework.boot.context.embedded.ServletRegistrationBean提供类的进行注册.
		ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new StatViewServlet(),
				"/druid2/*");

		//添加初始化参数：initParams

		//白名单：
		servletRegistrationBean.addInitParameter("allow", "127.0.0.1");
		//IP黑名单 (存在共同时，deny优先于allow) : 若是知足deny的话提示:Sorry, you are not permitted to view this page.
		servletRegistrationBean.addInitParameter("deny", "192.168.1.73");
		//登陆查看信息的帐号密码.
		servletRegistrationBean.addInitParameter("loginUsername", "admin2");
		servletRegistrationBean.addInitParameter("loginPassword", "123456");
		//是否可以重置数据.
		servletRegistrationBean.addInitParameter("resetEnable", "false");
		return servletRegistrationBean;
	}

	/**
	 * 注册一个：filterRegistrationBean
	 * @return
	 */
	@Bean
	public FilterRegistrationBean druidStatFilter2() {

		FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(new WebStatFilter());

		//添加过滤规则.
		filterRegistrationBean.addUrlPatterns("/*");

		//添加不须要忽略的格式信息.
		filterRegistrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid2/*");
		return filterRegistrationBean;
	}

}