廢話少說，按SpringBoot的老套路來。

【step1】：添加依賴

<!-- 數(shù)據(jù)庫連接池 --> <dependency><groupId>com.alibaba</groupId><artifactId>druid</artifactId><version>1.0.25</version> </dependency>

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【step2】：application.yml中添加對(duì)應(yīng)配置

spring:datasource:driverClassName: com.mysql.jdbc.Driverurl: jdbc:mysql://對(duì)應(yīng)自己的數(shù)據(jù)庫連接 username: xxxpassword: xxx ######################### Druid連接池的配置信息 ################# spring.druid.initialSize: 5 #初始化連接大小 spring.druid.minIdle: 5 #最小連接池?cái)?shù)量 spring.druid.maxActive: 20 #最大連接池?cái)?shù)量 spring.druid.maxWait: 60000 #獲取連接時(shí)最大等待時(shí)間，單位毫秒 spring.druid.timeBetweenEvictionRunsMillis: 60000 #配置間隔多久才進(jìn)行一次檢測(cè)，檢測(cè)需要關(guān)閉的空閑連接，單位是毫秒 spring.druid.minEvictableIdleTimeMillis: 300000 #配置一個(gè)連接在池中最小生存的時(shí)間，單位是毫秒 spring.druid.validationQuery: SELECT 1 FROM DUAL #測(cè)試連接 spring.druid.testWhileIdle: true #申請(qǐng)連接的時(shí)候檢測(cè)，建議配置為true，不影響性能，并且保證安全性 spring.druid.testOnBorrow: false #獲取連接時(shí)執(zhí)行檢測(cè)，建議關(guān)閉，影響性能 spring.druid.testOnReturn: false #歸還連接時(shí)執(zhí)行檢測(cè)，建議關(guān)閉，影響性能 spring.druid.poolPreparedStatements: false #是否開啟PSCache，PSCache對(duì)支持游標(biāo)的數(shù)據(jù)庫性能提升巨大，oracle建議開啟，mysql下建議關(guān)閉 spring.druid.maxPoolPreparedStatementPerConnectionSize: 20 #開啟poolPreparedStatements后生效 spring.druid.filters: stat,wall,log4j #配置擴(kuò)展插件，常用的插件有=>stat:監(jiān)控統(tǒng)計(jì) log4j:日志 wall:防御sql注入 spring.druid.connectionProperties: 'druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000' #通過connectProperties屬性來打開mergeSql功能;慢SQL記錄

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【step3】：java代碼中讀取配置，并做相關(guān)轉(zhuǎn)換(比如數(shù)據(jù)庫密碼加解密等，這里省略)

import java.sql.SQLException; import javax.sql.DataSource; import org.springframework.beans.factory.annotation.Value; import org.springframework.boot.context.embedded.FilterRegistrationBean; import org.springframework.boot.context.embedded.ServletRegistrationBean; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.context.annotation.Primary; import com.alibaba.druid.pool.DruidDataSource; import com.alibaba.druid.support.http.StatViewServlet; import com.alibaba.druid.support.http.WebStatFilter;@Configuration public class DruidConfiguration {@Value("${spring.datasource.url}")private String url;@Value("${spring.datasource.username}")private String username;@Value("${spring.datasource.password}")private String password;@Value("${spring.datasource.driverClassName}")private String driverClassName;@Value("${spring.druid.initialSize}")private int initialSize;@Value("${spring.druid.minIdle}")private int minIdle;@Value("${spring.druid.maxActive}")private int maxActive;@Value("${spring.druid.maxWait}")private int maxWait;@Value("${spring.druid.timeBetweenEvictionRunsMillis}")private int timeBetweenEvictionRunsMillis;@Value("${spring.druid.minEvictableIdleTimeMillis}")private int minEvictableIdleTimeMillis;@Value("${spring.druid.validationQuery}")private String validationQuery;@Value("${spring.druid.testWhileIdle}")private boolean testWhileIdle;@Value("${spring.druid.testOnBorrow}")private boolean testOnBorrow;@Value("${spring.druid.testOnReturn}")private boolean testOnReturn;@Value("${spring.druid.poolPreparedStatements}")private boolean poolPreparedStatements;@Value("${spring.druid.maxPoolPreparedStatementPerConnectionSize}")private int maxPoolPreparedStatementPerConnectionSize;@Value("${spring.druid.filters}")private String filters;@Value("{spring.druid.connectionProperties}")private String connectionProperties;@Bean@Primarypublic DataSource dataSource() {DruidDataSource datasource = new DruidDataSource();datasource.setUrl(url);datasource.setUsername(username);datasource.setPassword(password); //這里可以做加密處理 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) {}datasource.setConnectionProperties(connectionProperties);return datasource;}@Beanpublic ServletRegistrationBean statViewServlet(){ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new StatViewServlet(),"/druid/*");servletRegistrationBean.addInitParameter("allow","127.0.0.1"); //設(shè)置ip白名單servletRegistrationBean.addInitParameter("deny","192.168.0.19");//設(shè)置ip黑名單，優(yōu)先級(jí)高于白名單//設(shè)置控制臺(tái)管理用戶servletRegistrationBean.addInitParameter("loginUsername","root");servletRegistrationBean.addInitParameter("loginPassword","root");//是否可以重置數(shù)據(jù)servletRegistrationBean.addInitParameter("resetEnable","false");return servletRegistrationBean;}@Beanpublic FilterRegistrationBean statFilter(){//創(chuàng)建過濾器FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(new WebStatFilter());//設(shè)置過濾器過濾路徑filterRegistrationBean.addUrlPatterns("/*");//忽略過濾的形式filterRegistrationBean.addInitParameter("exclusions","*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");return filterRegistrationBean;} }

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【step4】：測(cè)試

登錄成功后如下：

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轉(zhuǎn)載于:https://www.cnblogs.com/funnyboy0128/p/9052447.html

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