How SpringBoot customizes the data source DruidDataSource code

This article will explain in detail how to customize the data source DruidDataSource code for SpringBoot. The editor thinks it is very practical, so I share it for you as a reference. I hope you can get something after reading this article.

Add dependencies

Com.alibaba druid 1.0.26

2. Configure application.yml

Spring: datasource:url: jdbc:mysql://127.0.0.1:3306/mxntest?characterEncoding=UTF-8username: rootpassword: rootdriver-class-name: com.mysql.jdbc.Drivertype: com.alibaba.druid.pool.DruidDataSource# initialization size, minimum, maximum initialSize: 5minIdle: 5maxActive: 5 configuration get connection wait timeout maxWait: 60000

III. Druid data source configuration

Package com.example.demo.config;/** * @ author 12084 * @ create 2018-08-09 11:27 * / import com.alibaba.druid.pool.DruidDataSource;import com.alibaba.druid.support.http.StatViewServlet;import com.alibaba.druid.support.http.WebStatFilter;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 org.springframework.context.annotation.Configuration Import org.springframework.context.annotation.Primary;import javax.sql.DataSource;import java.sql.SQLException;import java.util.HashMap;import java.util.Map;/** * Druid data source configuration * / @ Configurationpublic class DataSourceConfig {private static String dbUrl;private static String username;private static String password;private static String driverClassName;private static int initialSize;private static int minIdle;private static int maxActive;private static int maxWait;/** * register DruidServlet * * @ return * / @ Beanpublic ServletRegistrationBean druidServletRegistrationBean () {ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean () ServletRegistrationBean.setServlet (new StatViewServlet ()); servletRegistrationBean.addUrlMappings ("/ druid/*"); / / the account password for logging in to view information. ServletRegistrationBean.addInitParameter ("loginUsername", "admin"); servletRegistrationBean.addInitParameter ("loginPassword", "123456"); return servletRegistrationBean;} / * register DruidFilter intercept * * @ return * / @ Beanpublic FilterRegistrationBean druidFilterRegistrationBean () {FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean (); filterRegistrationBean.setFilter (new WebStatFilter ()); Map initParams = new HashMap () / / set ignore request initParams.put ("exclusions", "* .js,*.gif,*.jpg,*.bmp,*.png,*.css,*.ico,/druid/*"); filterRegistrationBean.setInitParameters (initParams); filterRegistrationBean.addUrlPatterns ("/ *"); return filterRegistrationBean;} / * * configure DataSource * @ return * @ throws SQLException * / @ Bean (initMethod = "init", destroyMethod = "close") @ Primarypublic DataSource dataSource () throws SQLException {DruidDataSource druidDataSource = new DruidDataSource () DruidDataSource.setUsername (username); druidDataSource.setPassword (password); druidDataSource.setUrl (dbUrl); druidDataSource.setFilters ("stat,wall"); druidDataSource.setInitialSize (initialSize); druidDataSource.setMinIdle (minIdle); druidDataSource.setMaxActive (maxActive); druidDataSource.setMaxWait (maxWait); druidDataSource.setUseGlobalDataSourceStat (true); druidDataSource.setDriverClassName (driverClassName); return druidDataSource;} @ Value ("${spring.datasource.url}") public void setDbUrl (String dbUrl) {DataSourceConfig.dbUrl = dbUrl @ Value ("${spring.datasource.username}") public void setUsername (String username) {DataSourceConfig.username = username;} @ Value ("${spring.datasource.password}") public void setPassword (String password) {DataSourceConfig.password = password;} @ Value ("${spring.datasource.driver-class-name}") public void setDriverClassName (String driverClassName) {DataSourceConfig.driverClassName = driverClassName;} @ Value (value = "${spring.datasource.initialSize}") public void setInitialSize (int initialSize) {DataSourceConfig.initialSize = initialSize @ Value (value = "${spring.datasource.minIdle}") public void setMinIdle (int minIdle) {DataSourceConfig.minIdle = minIdle;} @ Value (value = "${spring.datasource.maxActive}") public void setMaxActive (int maxActive) {DataSourceConfig.maxActive = maxActive;} @ Value (value = "${spring.datasource.maxWait}") public void setMaxWait (int maxWait) {DataSourceConfig.maxWait = maxWait;}}

4. Http://localhost:8080/druid/index.html can be viewed. If you configure a password, enter the password.

/ / log in to view the account password of the information. ServletRegistrationBean.addInitParameter ("loginUsername", "admin"); servletRegistrationBean.addInitParameter ("loginPassword", "123456")

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