SpringBoot使用Druid快速入门

SpringBoot使用Druid快速入门

在SpringBoot中设置Druid配置类，加载到容器当中

一、导入依赖

<!--阿里连接池druid：1.1.14-2019年-->
<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>druid</artifactId>
    <version>1.1.14</version>
</dependency>

二、properties配置类

# 数据库驱动：
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
# 数据源名称
spring.datasource.name=defaultDataSource
# 数据库连接地址
spring.datasource.url=jdbc:mysql://localhost:3306/lingling_cloud?useUnicode=true&characterEncoding=utf-8&useSSL=false&allowMultiQueries=true&serverTimezone=Asia/Shanghai
# 数据库用户名&密码：
spring.datasource.username=admin
spring.datasource.password=admin

三、Druid配置，可根据自身调整

package com.llkj.common.config;

import java.sql.SQLException;
import javax.sql.DataSource;

import org.springframework.context.annotation.Configuration;
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 com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
/**
 * @author liuzhihao
 * @version 1.0.0
 * @ClassName DruidConfig
 * @Description Druid监控web配置
 * @date 2021/8/19 16:23
 * @copyright 零瓴软件
 */
@Configuration
public class DruidConfig {
    @Bean
    public ServletRegistrationBean druidServlet() {
        ServletRegistrationBean reg = new ServletRegistrationBean();
        reg.setServlet(new StatViewServlet());
        // 登录URL http://localhost:8080/d/login.html
        reg.addUrlMappings("/druid/*");
        // 设置白名单
        reg.addInitParameter("allow", "192.168.1.7");
        // 设置黑名单
        reg.addInitParameter("deny", "");
        // 设置登录查看信息的账号密码.
        reg.addInitParameter("loginUsername", "admin");
        reg.addInitParameter("loginPassword", "admin");
        return reg;
    }
    @Bean
    public FilterRegistrationBean filterRegistrationBean() {
        FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean();
        filterRegistrationBean.setFilter(new WebStatFilter());
        filterRegistrationBean.addUrlPatterns("/*");
        filterRegistrationBean.addInitParameter("exclusions",
                "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");
        return filterRegistrationBean;
    }

    @Bean
    public DataSource druidDataSource(
            @Value("${spring.datasource.driverClassName}") String driver,
            @Value("${spring.datasource.url}") String url,
            @Value("${spring.datasource.username}") String username,
            @Value("${spring.datasource.password}") String password,
            @Value("${publicKey}") String publicKey,
            @Value("${spring.datasource.initialSize}") int initialSize,
            @Value("${spring.datasource.minIdle}") int minIdle,
            @Value("${spring.datasource.maxActive}") int maxActive,
            @Value("${spring.datasource.maxWait}") long maxWait,
            @Value("${spring.datasource.timeBetweenEvictionRunsMillis}") long timeBetweenEvictionRunsMillis,
            @Value("${spring.datasource.minEvictableIdleTimeMillis}") long minEvictableIdleTimeMillis,
            @Value("${spring.datasource.validationQuery}") String validationQuery,
            @Value("${spring.datasource.testWhileIdle}") boolean testWhileIdle,
            @Value("${spring.datasource.testOnBorrow}") boolean testOnBorrow,
            @Value("${spring.datasource.testOnReturn}") boolean testOnReturn,
            @Value("${spring.datasource.poolPreparedStatements}") boolean poolPreparedStatements,
            @Value("${spring.datasource.maxPoolPreparedStatementPerConnectionSize}") int maxPoolPreparedStatementPerConnectionSize,
            @Value("${spring.datasource.filters}") String filters,
            @Value("${spring.datasource.connectionProperties}") String connectionProperties) {
        DruidDataSource druidDataSource = new DruidDataSource();
        druidDataSource.setDriverClassName(driver);
        druidDataSource.setUrl(url);
        druidDataSource.setUsername(username);
        druidDataSource.setPassword(password);
        druidDataSource.setInitialSize(initialSize);
        druidDataSource.setMaxActive(maxActive);
        druidDataSource.setMaxWait(maxWait);
        druidDataSource
                .setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis);
        druidDataSource
                .setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);
        druidDataSource.setValidationQuery(validationQuery);
        druidDataSource.setTestWhileIdle(testWhileIdle);
        druidDataSource.setTestOnBorrow(testOnBorrow);
        druidDataSource.setTestOnReturn(testOnReturn);
        druidDataSource.setPoolPreparedStatements(poolPreparedStatements);
        druidDataSource
                .setMaxPoolPreparedStatementPerConnectionSize(maxPoolPreparedStatementPerConnectionSize);
        druidDataSource.setConnectionProperties(connectionProperties);
        try {
            druidDataSource.setFilters(filters);
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return druidDataSource;
    }
}

四、访问druid的ui地址

http://localhost:8080/druid/login.html
  用户名：admin
  密码：admin

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