springboot整合druid数据连接池

拼搏现实的明天。 2022-05-15 07:57 304阅读 0赞

第一步：导入所需要的jar吧

<dependency>
    			<groupId>com.oracle</groupId>
    			<artifactId>ojdbc8</artifactId>
    			<version>12.1.0.2</version>
    		</dependency>
    		<dependency>
    			<groupId>com.alibaba</groupId>
    			<artifactId>druid</artifactId>
    			<version>1.1.10</version>
    		</dependency>

第二步：配置application.properties文件

spring.datasource.url=数据库连接
    spring.datasource.username=数据库账户
    spring.datasource.password=数据库密码
    
    spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
    spring.datasource.driver-class-name=oracle.jdbc.driver.OracleDriver
    # 下面为连接池的补充设置，应用到上面所有数据源中
    # 初始化大小，最小，最大
    spring.datasource.initialSize=5
    spring.datasource.minIdle=5
    spring.datasource.maxActive=20
    # 配置获取连接等待超时的时间
    spring.datasource.maxWait=60000
    # 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒
    spring.datasource.timeBetweenEvictionRunsMillis=60000
    # 配置一个连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，并且指定每个连接上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无法统计，'wall'用于防火墙
    spring.datasource.filters=stat,wall,log4j
    # 通过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
    spring.datasource.useGlobalDataSourceStat=true

第三步：编写config做一个filter监听

package com.example.demo.config;
    
    import com.alibaba.druid.pool.DruidDataSource;
    import com.alibaba.druid.support.http.StatViewServlet;
    import com.alibaba.druid.support.http.WebStatFilter;
    import org.springframework.boot.context.properties.ConfigurationProperties;
    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 javax.sql.DataSource;
    import java.util.Arrays;
    import java.util.HashMap;
    import java.util.Map;
    
    /**
     * @作者 Administrator
     * @创建日期 2018/8/27 0027
     * @创建时间 11:28.
     */
    @Configuration
    public class DruidConfig {
        @Bean
        public ServletRegistrationBean statViewServlet() {
            ServletRegistrationBean druid = new ServletRegistrationBean();
            druid.setServlet(new StatViewServlet());
            druid.setUrlMappings(Arrays.asList("/druid/*"));
    
           /* Map<String,String> params = new HashMap<>();
            params.put("loginUsername", "admin");
            params.put("loginPassword", "admin");
            druid.setInitParameters(params);*/
            return druid;
        }
    
        /**
         * @see WebStatFilter
         * @return
         */
        @Bean
        public FilterRegistrationBean webStatFilter(){
            FilterRegistrationBean fitler = new FilterRegistrationBean();
            fitler.setFilter(new WebStatFilter());
            fitler.setUrlPatterns(Arrays.asList("/*"));
            fitler.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");
            return fitler;
        }
    }

最后就可以访问[http://localhost:8080/druid/][http_localhost_8080_druid]了

[http_localhost_8080_druid]: http://localhost:8080/druid/