SpringBoot使用Druid數據源的配置方法

Druid是阿里巴巴開源平台上一個數據庫連接池實現，它結合了C3P0、DBCP、PROXOOL等DB池的優點，同時加入了日誌監控，可以很好的監控DB池連接和SQL的執行情況，可以說是針對監控而生的DB連接池(據說是目前最好的連接池)

一、依賴

為了測試，使用jdbcTemplate

 <!-- jdbcTemplate --><dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-jdbc</artifactId></dependency><!-- druid數據庫連接池--><dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.0.26</version></dependency><!-- mysql connector --><dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <scope>runtime</scope></dependency>

二、Druid配置

druid.properties#數據庫設置spring.datasource.driverClassName=com.mysql.jdbc.Driverspring.datasource.url=jdbc:mysql://localhost:3306/uu_core?useUnicode=true&characterEncoding=utf8&autoReconnect=true&useSSL=truespring.datasource.username=rootspring.datasource.password=root#--------------------------# 下面為連接池的補充設置，應用到上面所有數據源中# 初始化大小，最小，最大spring.datasource.initialSize=5spring.datasource.minIdle=1spring.datasource.maxActive=50# 配置獲取連接等待超時的時間spring.datasource.maxWait=60000# 配置間隔多久才進行一次檢測，檢測需要關閉的空閒連接，單位是毫秒spring.datasource.timeBetweenEvictionRunsMillis=60000# 配置一個連接在池中最小生存的時間，單位是毫秒spring.datasource.minEvictableIdleTimeMillis=300000spring.datasource.validationQuery=SELECT 1 FROM DUALspring.datasource.testWhileIdle=truespring.datasource.testOnBorrow=falsespring.datasource.testOnReturn=false# 打開PSCache，並且指定每個連接上PSCache的大小spring.datasource.poolPreparedStatements=false#spring.datasource.maxPoolPreparedStatementPerConnectionSize=20# 配置監控統計攔截的filters，去掉後監控界面sql無法統計，'wall'用於防火牆spring.datasource.filters=stat,wall,log4j# 通過connectProperties屬性來打開mergeSql功能；慢SQL記錄spring.datasource.connectionProperties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000# 合併多個DruidDataSource的監控數據#spring.datasource.useGlobalDataSourceStat=true

三、實例化Druid Datasource

 package cn.aduu.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 org.springframework.context.annotation.PropertySource;import javax.sql.DataSource;/** * @author zh * @ClassName cn.aduu.config.DruidConfiguration * @Description */@Configuration@PropertySource(value = "classpath:druid.properties")public class DruidConfiguration { @Bean(destroyMethod = "close", initMethod = "init") @ConfigurationProperties(prefix = "spring.datasource") public DataSource druidDataSource() { DruidDataSource druidDataSource = new DruidDataSource(); return druidDataSource; } /** * 註冊一個StatViewServlet * @return */ @Bean public ServletRegistrationBean druidStatViewServlet(){ //org.springframework.boot.context.embedded.ServletRegistrationBean提供類的進行註冊. ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new StatViewServlet(),"/druid/*"); //添加初始化參數：initParams //白名單： servletRegistrationBean.addInitParameter("allow","127.0.0.1"); //IP黑名單(存在共同時，deny優先於allow) : 如果滿足deny的話提示:Sorry, you are not permitted to view this page. servletRegistrationBean.addInitParameter("deny","192.168.1.73"); //登錄查看信息的賬號密碼. servletRegistrationBean.addInitParameter("loginUsername","admin"); servletRegistrationBean.addInitParameter("loginPassword","123456"); //是否能夠重置數據. servletRegistrationBean.addInitParameter("resetEnable","false"); return servletRegistrationBean; } /** * 註冊一個：filterRegistrationBean * @return */ @Bean public FilterRegistrationBean druidStatFilter(){ FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(new WebStatFilter()); //添加過濾規則. filterRegistrationBean.addUrlPatterns("/*"); //添加不需要忽略的格式信息. filterRegistrationBean.addInitParameter("exclusions","*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*"); return filterRegistrationBean; }}

四、監控

訪問http://localhost:8080/druid， 使用上面配置的賬號密碼。

五、測試

@RestControllerpublic class HelloController{ private static final Logger logger = LoggerFactory.getLogger(HelloController.class); @Autowired private JdbcTemplate jdbcTemplate; @RequestMapping("hello") public List<Map<String, Object>> hello() { List<Map<String, Object>> list = jdbcTemplate.queryForList("SELECT user,password FROM mysql.user ", new Object[]{}); return list; }}

訪問localhost:8080/hello

 [ { "user": "root", "password": "*81F5E21E35407D884A6CD4A731AEBFB6AF209E1B" }, { "user": "root", "password": "*81F5E21E35407D884A6CD4A731AEBFB6AF209E1B" }]

總結

以上所述是小編給大家介紹的SpringBoot使用Druid數據源，希望對大家有所幫助，如果大家有任何疑問請給我留言，小編會及時回復大家的。在此也非常感謝大家對武林網網站的支持！