SpringBoot project development (5): Ali's Druid database connection pool

1. Add dependency, add custom configuration (thread pool size, etc.) in the configuration file

2. Then add a configuration class, use these custom configurations, configure the monitoring background Servlet, and configure the filter

@Configuration
public class DruidConfig {
    @ConfigurationProperties(prefix = "spring.datasource")
    @Bean
    public DruidDataSource druidDataSource(){
        return new DruidDataSource();
    }
    //Configure monitoring servlet
    @Bean
    public ServletRegistrationBean statViewServlet(){
        ServletRegistrationBean bean = new ServletRegistrationBean(new StatViewServlet () , "/druid/*");
        Map<String,String> initParameter= new HashMap<> ();
        initParameter.put("loginUsername" ,"admin");
        initParameter.put("loginPassword" ,"123456");
        initParameter.put("allow" ,"");//Allow all access by default
        // Add IP whitelist
        //servletRegistrationBean.addInitParameter("allow", "127.0.0.1");
        // Add IP blacklist, when the whitelist and blacklist are duplicated, the priority of the blacklist is higher
        //servletRegistrationBean.addInitParameter("deny", "127.0.0.1");
        // Can the data be reset
        bean.addInitParameter("resetEnable", "false");
        bean.setInitParameters (initParameter);
        return bean;
    }
    //Configure monitoring filter
    @Bean
    public FilterRegistrationBean webStatFilter(){
        FilterRegistrationBean bean = new FilterRegistrationBean(new WebStatFilter ());
        // Add filter rules
        bean .addUrlPatterns("/*");
        // Ignore the filter format
        bean .addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*,");
        return bean;
    }
}

After configuration, we start the SpringBoot program to visit:

http://localhost:8081/druid/ You can come to our login page, which is the console management user we added above. We can see the running status and Sql execution well on it.