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具體如下:
druid 是阿里開源的數據庫連接池。
開發時整合 druid 數據源過程。
1.修改pom.xml
<dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId></dependency><dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.0.26</version></dependency>
增加上面的配置。
2.編輯配置數據源代碼
package com.neo.conf;import javax.sql.DataSource;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 com.alibaba.druid.pool.DruidDataSource;import com.alibaba.druid.support.http.StatViewServlet;import com.alibaba.druid.support.http.WebStatFilter;@Configuration@ConfigurationProperties(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; } /** * 注冊一個StatViewServlet * @return */ @Bean public ServletRegistrationBean druidStatViewServlet(){ //org.springframework.boot.context.embedded.ServletRegistrationBean提供類的進行注冊. ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new StatViewServlet(),"/druid/*"); //添加初始化參數:initParams //白名單: servletRegistrationBean.addInitParameter("allow","127.0.0.1,192.168.31.77"); //IP黑名單 (存在共同時,deny優先于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; } /** * 注冊一個: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; }}
3.編寫配置文件 druid.properties
spring.datasource.driverClassName=com.mysql.jdbc.Driverspring.datasource.url=jdbc:mysql://localhost:3306/mycine?useUnicode=true&characterEncoding=utf8&autoReconnect=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=5spring.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,檢測需要關閉的空閑連接,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 1spring.datasource.testWhileIdle=truespring.datasource.testOnBorrow=falsespring.datasource.testOnReturn=false# 打開PSCache,并且指定每個連接上PSCache的大小spring.datasource.poolPreparedStatements=false#spring.datasource.maxPoolPreparedStatementPerConnectionSize=20# 配置監控統計攔截的filters,去掉后監控界面sql無法統計,'wall'用于防火墻#spring.datasource.filters=stat,wall,log4jspring.datasource.filters=stat# 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# 合并多個DruidDataSource的監控數據#spring.datasource.useGlobalDataSourceStat=true
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