step 1. 增加druid依赖
修改 pom.xml
在
4.0.0
...
...
fr.ippon.spark.metrics
metrics-spark-reporter
${metrics-spark-reporter.version}
com.alibaba
druid
1.0.25
...
step 2. 修改application-dev.yml / application-prod.xml配置
加完依赖的jar之后,我们还希望对druid进行一些配置,可以根据实际情况选择修改的文件,在这我们选择 src\main\resources\config\application-dev.yml
# ===================================================================
# Spring Boot configuration.
#
# This configuration will be overriden by the Spring profile you use,
# for example application-dev.yml if you use the "dev" profile.
# ===================================================================
# ===================================================================
# Standard Spring Boot properties.
# Full reference is available at:
# http://docs.spring.io/spring-boot/docs/current/reference/html/common-application-properties.html
# ===================================================================
management:
context-path: /management
health:
mail:
enabled: false # When using the MailService, configure an SMTP server and set this to true
spring:
application:
name: cms
.......
datasource:
# type: com.zaxxer.hikari.HikariDataSource
type: com.alibaba.druid.pool.DruidDataSource
url: jdbc:mysql://localhost:3306/cms?useUnicode=true&characterEncoding=utf8&useSSL=false
username: dev
password: 123456
hikari:
data-source-properties:
cachePrepStmts: true
prepStmtCacheSize: 250
prepStmtCacheSqlLimit: 2048
useServerPrepStmts: true
driverClassName: com.mysql.jdbc.Driver
druid:
initialSize: 5
minIdle: 5
maxActive: 20
maxWait: 60000
timeBetweenEvictionRunsMillis: 60000
minEvictableIdleTimeMillis: 300000
validationQuery: SELECT NOW()
testWhileIdle: true
testOnBorrow: false
testOnReturn: false
poolPreparedStatements: true
maxPoolPreparedStatementPerConnectionSize: 20
filters: stat,wall,log4j
connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
.....
step 3. 添加druid配置类
创建一个新的java类
package cn.ctodb.cms.config;
import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import javax.sql.DataSource;
import java.sql.SQLException;
@Configuration
public class DruidDBConfig {
private Logger logger = LoggerFactory.getLogger(DruidDBConfig.class);
@Value("${spring.datasource.url}")
private String dbUrl;
@Value("${spring.datasource.username}")
private String username;
@Value("${spring.datasource.password}")
private String password;
@Value("${spring.datasource.driverClassName}")
private String driverClassName;
@Value("${spring.datasource.druid.initialSize}")
private int initialSize;
@Value("${spring.datasource.druid.minIdle}")
private int minIdle;
@Value("${spring.datasource.druid.maxActive}")
private int maxActive;
@Value("${spring.datasource.druid.maxWait}")
private int maxWait;
@Value("${spring.datasource.druid.timeBetweenEvictionRunsMillis}")
private int timeBetweenEvictionRunsMillis;
@Value("${spring.datasource.druid.minEvictableIdleTimeMillis}")
private int minEvictableIdleTimeMillis;
@Value("${spring.datasource.druid.validationQuery}")
private String validationQuery;
@Value("${spring.datasource.druid.testWhileIdle}")
private boolean testWhileIdle;
@Value("${spring.datasource.druid.testOnBorrow}")
private boolean testOnBorrow;
@Value("${spring.datasource.druid.testOnReturn}")
private boolean testOnReturn;
@Value("${spring.datasource.druid.poolPreparedStatements}")
private boolean poolPreparedStatements;
@Value("${spring.datasource.druid.maxPoolPreparedStatementPerConnectionSize}")
private int maxPoolPreparedStatementPerConnectionSize;
@Value("${spring.datasource.druid.filters}")
private String filters;
@Value("{spring.datasource.druid.connectionProperties}")
private String connectionProperties;
@Bean //声明其为Bean实例
@Primary //在同样的DataSource中,首先使用被标注的DataSource
public DataSource dataSource() {
DruidDataSource datasource = new DruidDataSource();
datasource.setUrl(this.dbUrl);
datasource.setUsername(username);
datasource.setPassword(password);
datasource.setDriverClassName(driverClassName);
//configuration
datasource.setInitialSize(initialSize);
datasource.setMinIdle(minIdle);
datasource.setMaxActive(maxActive);
datasource.setMaxWait(maxWait);
datasource.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis);
datasource.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);
datasource.setValidationQuery(validationQuery);
datasource.setTestWhileIdle(testWhileIdle);
datasource.setTestOnBorrow(testOnBorrow);
datasource.setTestOnReturn(testOnReturn);
datasource.setPoolPreparedStatements(poolPreparedStatements);
datasource.setMaxPoolPreparedStatementPerConnectionSize(maxPoolPreparedStatementPerConnectionSize);
try {
datasource.setFilters(filters);
} catch (SQLException e) {
logger.error("druid configuration initialization filter", e);
}
datasource.setConnectionProperties(connectionProperties);
return datasource;
}
// 注册druid后端监控的servlet
@Bean
public ServletRegistrationBean indexServletRegistration() {
ServletRegistrationBean registration = new ServletRegistrationBean(new StatViewServlet());
registration.addUrlMappings("/druid/*");
registration.addInitParameter("allow", "127.0.0.1,192.168.1.105");// IP白名单(没有配置或者为空,则允许所有访问)
registration.addInitParameter("deny", "");// IP黑名单 (存在共同时,deny优先于allow)
registration.addInitParameter("loginUsername", "admin");// 用户名
registration.addInitParameter("loginPassword", "123456");// 密码
registration.addInitParameter("resetEnable", "false");// 禁用HTML页面上的“Reset All”功能
return registration;
}
// 注册druid过滤器
@Bean
public FilterRegistrationBean indexFilterRegistration() {
FilterRegistrationBean registration = new FilterRegistrationBean(new WebStatFilter());
registration.addUrlPatterns("/*");
registration.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.bmp,*.png,*.css,*.ico,/druid/*");
return registration;
}
}
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